US4352898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-reducible epoxy coating compositions without emulsifier
Assignee: Deft Inc
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Filing: 1980-04-25
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Granted: 1982-10-05
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Expires: 2000-04-25
Abstract
Abstract A homogeneous, water-reducible coating composition comprises a modified polyamine resin homogeneously reduced, in an aqueous system comprising water and a low-molecular weight nitroparaffin. An epoxy resin can be added to the coating composition to form a stable emulsion.
Inventors
- 👤 Richard A. Albers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:04
CPC Classifications
C; C09; C09D; C09D179/00; C09D179/04; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184; C08G59/40; C08G59/50; C09D163/00; C09D177/00; C09D179/02
Claims Analysis
Total Claims: 75
Claim 1
Independent Claim
127 words
A homogeneous water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 2
Dependent Claim
127 words
A homogeneous water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 3
Dependent Claim
95 words
A homogeneous, water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin the composition containing substantilly no emulsifier, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 4
Dependent Claim
95 words
A homogeneous, water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin the composition containing substantilly no emulsifier, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 5
Dependent Claim
197 words
A homogeneous water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin the composition containing substantilly no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , and the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, polycarboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamine-epoxy adducts, and (d) combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 6
Dependent Claim
197 words
A homogeneous water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin the composition containing substantilly no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , and the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, polycarboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamine-epoxy adducts, and (d) combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 7
Dependent Claim
27 words
The composition of claim 1 or 3 in which the nitroparaffin is selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 2-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof.
Claim 8
Dependent Claim
11 words
The composition of claim 4 in which the nitroparaffin is 2-nitropropane.
Claim 9
Dependent Claim
25 words
The composition of claim 1, 2, or 3 comprising the nitroparaffin in an amount of up to 50% by weight of the modified polyamine resin.
Claim 10
Dependent Claim
28 words
The composition of claim 1, 2, or 3 comprising the nitroparaffin in an amount of from about 15 to about 25% by weight of the modified polyamine resin.
Claim 11
Dependent Claim
23 words
The composition of claim 1, 2, or 3 in which the modified polyamine resin has an amine value of less than about 400.
Claim 12
Dependent Claim
21 words
The composition of claim 1, 2, or 3 having a volatile organic content of no more than 450 grams per liter.
Claim 13
Dependent Claim
13 words
The composition of claim 9 including an organic solvent for the epoxy resin.
Claim 14
Dependent Claim
14 words
The composition of claim 9 including an organic solvent for the modified polyamine resin.
Claim 15
Dependent Claim
28 words
The composition of claim 1, 2, or 3 in which the modified polyamine resin is selected from the group consisting of polyamides and combinations thereof with polyamine-epoxy adducts.
Claim 16
Dependent Claim
63 words
The composition of claim 1, 2, or 3 in which the modified polyamine resin comprises polyamide resins formed by the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, poly-carboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms.
Claim 17
Dependent Claim
174 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin has an amine value of less than about 400, and is inherently incapable of being reduced, dissolved or dispersed by water; and (c) an aqueous system in which the modified polyamine resin is homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin, nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, and water in an amount of at least 50% by weight of the modified polyamine resin, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the composition containing substantially no emulsifier and having a volatile organic content of no more than 450 grams per liter
Claim 18
Dependent Claim
174 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin has an amine value of less than about 400, and is inherently incapable of being reduced, dissolved or dispersed by water; and (c) an aqueous system in which the modified polyamine resin is homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin, nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, and water in an amount of at least 50% by weight of the modified polyamine resin, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the composition containing substantially no emulsifier and having a volatile organic content of no more than 450 grams per liter
Claim 19
Dependent Claim
125 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin has an amine value of less than about 400 and is inherently incapable of being reduced, dissolved or dispersed by water; and (c) an aqueous system in which the modified polyamine resin is homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin the composition containing substantilly no emulsifier, nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof.
Claim 20
Dependent Claim
125 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin has an amine value of less than about 400 and is inherently incapable of being reduced, dissolved or dispersed by water; and (c) an aqueous system in which the modified polyamine resin is homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin the composition containing substantilly no emulsifier, nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof.
Claim 21
Dependent Claim
115 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin has an amine value of less than about 400, and is inherently incapable of being reduced, dissolved or dispersed by water, the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, polycarboxlic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof; and
Claim 22
Dependent Claim
115 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin has an amine value of less than about 400, and is inherently incapable of being reduced, dissolved or dispersed by water, the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, polycarboxlic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof; and
Claim 23
Dependent Claim
129 words
(c) an aqueous system in which the modified polyamine resin is homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin, nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, and water in an amount of at least 50% by weight of the modified polyamine resin the composition containing substantilly no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the composition having a volatile organic content of no more than 450 grams per liter.
Claim 24
Dependent Claim
129 words
(c) an aqueous system in which the modified polyamine resin is homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin, nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, and water in an amount of at least 50% by weight of the modified polyamine resin the composition containing substantilly no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the composition having a volatile organic content of no more than 450 grams per liter.
Claim 25
Dependent Claim
142 words
A composition for forming a coating, the composition comprising epoxy resin and nitroparaffin, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the nitroparaffin being present in an amount such that when sufficient modified polyamine resin to cure the epoxy resin is added to the composition, the modified polyamine resin can be homogeneously reduced by an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier and having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble in water.
Claim 26
Dependent Claim
142 words
A composition for forming a coating, the composition comprising epoxy resin and nitroparaffin, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the nitroparaffin being present in an amount such that when sufficient modified polyamine resin to cure the epoxy resin is added to the composition, the modified polyamine resin can be homogeneously reduced by an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier and having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble in water.
Claim 27
Dependent Claim
110 words
A composition for forming a coating, the composition comprising epoxy resin and nitroparaffin selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the nitroparaffin being present in an amount such that when sufficient modified polyamine resin to cure the epoxy resin is added to the composition, the modified polyamine resin can be homogeneously dispersed in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the composition having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 28
Dependent Claim
110 words
A composition for forming a coating, the composition comprising epoxy resin and nitroparaffin selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the nitroparaffin being present in an amount such that when sufficient modified polyamine resin to cure the epoxy resin is added to the composition, the modified polyamine resin can be homogeneously dispersed in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the composition having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 29
Dependent Claim
25 words
The composition of claim 17 in which the nitroparaffin is selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 2-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof.
Claim 30
Dependent Claim
11 words
The composition of claim 19 in which the nitroparaffin is 2-nitropropane.
Claim 31
Dependent Claim
13 words
The composition of claim 18 or 19 in which the nitroparaffin is nitroethane.
Claim 32
Dependent Claim
13 words
The composition of claim 17 including an organic solvent for the epoxy resin.
Claim 33
Dependent Claim
13 words
The composition of claim 18 including an organic solvent for the epoxy resin.
Claim 34
Dependent Claim
22 words
The composition of claims 17, 18, 22 or 23 having a volatile organic content of no more than 350 grams per liter.
Claim 35
Dependent Claim
121 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 36
Dependent Claim
121 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 37
Dependent Claim
92 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system, the aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 38
Dependent Claim
92 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system, the aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 39
Dependent Claim
191 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but not more than two X's are NO 2 , and the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, polycarboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 40
Dependent Claim
191 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but not more than two X's are NO 2 , and the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, polycarboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 41
Dependent Claim
26 words
The composition of claim 27, 27 in which the nitroparaffin is selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 2-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof.
Claim 42
Dependent Claim
11 words
The composition of claim 28 in which the nitroparaffin is 2-nitropropane.
Claim 43
Dependent Claim
11 words
The composition of claim 28 in which the nitroparaffin is 2-nitropropane.
Claim 44
Dependent Claim
25 words
The composition of claim 25, 26, or 27 comprising the nitroparaffin in an amount of up to 50% by weight of the modified polyamine resin.
Claim 45
Dependent Claim
24 words
The composition of claim 27 or 28, comprising the nitroparaffin in an amount of up to 50% by weight of the modified polyamine resin.
Claim 46
Dependent Claim
23 words
The composition of claim 25, 26 or 27 in which the modified polyamine resin has an amine value of less than about 400.
Claim 47
Dependent Claim
13 words
The composition of claim 25 including an organic solvent for the polyamine resin.
Claim 48
Dependent Claim
13 words
The composition of claim 26 including an organic solvent for the polyamine resin.
Claim 49
Dependent Claim
13 words
The composition of claim 27 including an organic solvent for the polyamine resin.
Claim 50
Dependent Claim
24 words
The composition of claim 25, 26, 27, 34, 35, or 39 having a volatile organic content of no more than 450 grams per liter.
Claim 51
Dependent Claim
25 words
The composition of claim 25, 26, or 27 including epoxy resin in an amount about stoichiometric to the amount of polyamide resin in the composition.
Claim 52
Dependent Claim
119 words
A homogeneous composition comprising modified polyamine resin having an amine value of less than about 400 homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, nitroparaffin in an amount of from about 15 to about 25% by weight of the modified polyamine resin, and an organic solvent for the modified polyamine resin, the composition containing substantially no emulsifier, wherein the modified polyamine resin is inherently incapable of being homogeneously reduced, dissolved or dispersed by water, the nitroparaffin is selected from the group consisting of nitroethane, 2-nitropropane, and combinations thereof, and the composition has a volatile organic content of no more than about 450 grams per liter.
Claim 53
Dependent Claim
119 words
A homogeneous composition comprising modified polyamine resin having an amine value of less than about 400 homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, nitroparaffin in an amount of from about 15 to about 25% by weight of the modified polyamine resin, and an organic solvent for the modified polyamine resin, the composition containing substantially no emulsifier, wherein the modified polyamine resin is inherently incapable of being homogeneously reduced, dissolved or dispersed by water, the nitroparaffin is selected from the group consisting of nitroethane, 2-nitropropane, and combinations thereof, and the composition has a volatile organic content of no more than about 450 grams per liter.
Claim 54
Dependent Claim
127 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins having an amine value of less than about 400 homogeneously dispersed in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, an organic solvent for the modified polyamine resin and nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, wherein the nitroparaffin is selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the modified polyamine resin is inherently incapable of being homogeneously reduced, dissolved or dispersed by water, and the composition has a volatile organic content of no more than about 450 grams per liter.
Claim 55
Dependent Claim
127 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins having an amine value of less than about 400 homogeneously dispersed in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, an organic solvent for the modified polyamine resin and nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, wherein the nitroparaffin is selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the modified polyamine resin is inherently incapable of being homogeneously reduced, dissolved or dispersed by water, and the composition has a volatile organic content of no more than about 450 grams per liter.
Claim 56
Dependent Claim
193 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins having an amine value of less than about 400 homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, nitroparaffin in an amount of from about 15 to about 25% by weight of the modified polyamine resin, and an organic solvent for the modified poyamine resin, the composition containing substantially no emulsifier, wherein the polyamine resin is inherently capable of being homogeneously reduced, dissolved or dispersed by water, the nitroparaffin is selected from the group consisting of nitroethane, 2-nitropropane, and combinations thereof, the composition has a volatile organic content of no more than about 450 grams per liter, and the modified polyamine resin being selected from the group consisting of (a) polyamine epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, poly-carboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof.
Claim 57
Dependent Claim
193 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins having an amine value of less than about 400 homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, nitroparaffin in an amount of from about 15 to about 25% by weight of the modified polyamine resin, and an organic solvent for the modified poyamine resin, the composition containing substantially no emulsifier, wherein the polyamine resin is inherently capable of being homogeneously reduced, dissolved or dispersed by water, the nitroparaffin is selected from the group consisting of nitroethane, 2-nitropropane, and combinations thereof, the composition has a volatile organic content of no more than about 450 grams per liter, and the modified polyamine resin being selected from the group consisting of (a) polyamine epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, poly-carboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof.
Claim 58
Dependent Claim
74 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier and having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 59
Dependent Claim
74 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier and having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 60
Dependent Claim
92 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the composition having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 61
Dependent Claim
92 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin being selected from the group consisting of nitromethane, nitroethane, 1-nitropropane, 1-nitrobutane, 2-nitrobutane, and combinations thereof, the composition having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being inherently insoluble and non-dispersible in water.
Claim 62
Dependent Claim
137 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition having a volatile organic content of less than 450 grams per liter, and the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, poly-carboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof, the modified polyamine resin being inherently insoluble in water.
Claim 63
Dependent Claim
137 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition having a volatile organic content of less than 450 grams per liter, and the modified polyamine resin being selected from the group consisting of (a) polyamine-epoxy adducts, (b) polyamides resulting from the reaction of polyamines and carboxylic acids selected from the group consisting of monocarboxylic acids, poly-carboxylic acids, and combinations thereof where less than about 75% by weight of the carboxylic acids reacted with the polyamines are dicarboxylic acids having 10 or less carbon atoms, (c) polyamide-epoxy adducts, and (d) combinations thereof, the modified polyamine resin being inherently insoluble in water.
Claim 64
Dependent Claim
16 words
The composition of claim 42, 43 or 44 including an organic solvent for the polyamine resin.
Claim 65
Dependent Claim
134 words
A homogeneous water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n + 2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being a polyamine-epoxy adduct that is inherently insoluble and non-dispersible in water.
Claim 66
Dependent Claim
134 words
A homogeneous water-reducible coating composition comprising epoxy resin and sufficient modified polyamine resin to cure the epoxy resin, the modified polyamine resin being homogeneously reduced in an aqueous system comprising nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin and water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n + 2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being a polyamine-epoxy adduct that is inherently insoluble and non-dispersible in water.
Claim 67
Dependent Claim
179 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin is a polyamine-epoxy adduct that has an amine value of less than about 400, and is inherently incapable of being reduced, dissolved or dispersed by water; and (c) an aqueous system in which the modified polyamine resin in homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin, nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, and water in an amount of at least 50% by weight of the modified polyamine resin, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the composition containing substantially no emulsifier and having a volatile organic content of no more than 450 grams per liter.
Claim 68
Dependent Claim
179 words
A homogeneous, water-reduced coating composition comprising: (a) epoxy resin; (b) sufficient modified polyamine resin to cure the epoxy resin, wherein the modified polyamine resin is a polyamine-epoxy adduct that has an amine value of less than about 400, and is inherently incapable of being reduced, dissolved or dispersed by water; and (c) an aqueous system in which the modified polyamine resin in homogeneously reduced, the aqueous system comprising an organic solvent for the modified polyamine resin, nitroparaffin in an amount of from about 15% to about 25% by weight of the modified polyamine resin, and water in an amount of at least 50% by weight of the modified polyamine resin, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the composition containing substantially no emulsifier and having a volatile organic content of no more than 450 grams per liter.
Claim 69
Dependent Claim
126 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being a polyamine-epoxy adduct that is inherently insoluble and non-dispersible in water.
Claim 70
Dependent Claim
126 words
A homogeneous composition comprising modified polyamine resin curing agent for epoxy resins, the modified polyamine resin being homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin and nitroparaffin in an amount of at least 2% by weight of the modified polyamine resin, the composition containing substantially no emulsifier, the nitroparaffin having the formula C n X 2n+2 where n is an integer from 1 to 4 and each X is independently selected from the group consisting of chlorine, hydrogen, and NO 2 , where at least one but no more than two X's are NO 2 , the modified polyamine resin being a polyamine-epoxy adduct that is inherently insoluble and non-dispersible in water.
Claim 71
Dependent Claim
124 words
A homogeneous composition comprising modified polyamine resin having an amine value of less than about 400 homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, nitroparaffin in an amount of from about 15 to about 25% by weight of the modified polyamine resin, and an organic solvent for the modified polyamine resin, the composition containing substantially no emulsifier, wherein the modified polyamine resin is a polyamine-epoxy adduct that is inherently incapable of being homogeneously reduced, dissolved or dispersed by water, the nitroparaffin is selected from the group consisting of nitroethane, 2-nitropropane, and combinations thereof, and the composition has a volatile organic content of no more than about 450 grams per liter.
Claim 72
Dependent Claim
124 words
A homogeneous composition comprising modified polyamine resin having an amine value of less than about 400 homogeneously reduced in an aqueous system comprising water in an amount of at least 50% by weight of the modified polyamine resin, nitroparaffin in an amount of from about 15 to about 25% by weight of the modified polyamine resin, and an organic solvent for the modified polyamine resin, the composition containing substantially no emulsifier, wherein the modified polyamine resin is a polyamine-epoxy adduct that is inherently incapable of being homogeneously reduced, dissolved or dispersed by water, the nitroparaffin is selected from the group consisting of nitroethane, 2-nitropropane, and combinations thereof, and the composition has a volatile organic content of no more than about 450 grams per liter.
Claim 73
Dependent Claim
79 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier and having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being a polyamine-epoxy adduct that is inherently insoluble and non-dispersible in water.
Claim 74
Dependent Claim
79 words
A homogeneous, water-reducible composition comprising modified polyamine resin curing agent for epoxy resins and nitroparaffin in an amount sufficient that the modified polyamine resin can be homogeneously reduced by water in an amount of at least 50% by weight of the modified polyamine resin, the composition containing substantially no emulsifier and having a volatile organic content of less than 450 grams per liter, the modified polyamine resin being a polyamine-epoxy adduct that is inherently insoluble and non-dispersible in water.
Claim 75
Dependent Claim
21 words
The composition of claims 2, 3, 26, 27, 40, 41, 43 or 44 wherein the modified polyamine resin comprises polyamine-epoxy adducts.
References Cited (Backward Citations)
US4120839A
Cited
US4182831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-04 | 1986-04-05 | 1986-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-04 | 1990-04-05 | 1990-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-04 | 1994-04-05 | 1994-10-05 | $7700.00 | Window Closed / Lapsed |