Patent US4397991A successfully refreshed from Google Patents.
US4397991A
Expired / Lapsed
US
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Polyesteramide adhesives and sealing compounds
Assignee: Lanxess Organometallics GmbH
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Filing: 1982-04-01
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Granted: 1983-08-09
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Expires: 2002-04-01
Abstract
Abstract What are disclosed are polyesteramides prepared by the condensation of dimerized fatty acids having 16-44 carbon atoms with ethylene diamine and with aliphatic co-diamines which are optionally substituted and optionally interrupted by heteroatoms, with diglycolamine, and with aliphatic, cycloaliphatic, aromatic, or araliphatic co-dicarboxylic acids; mixtures of such polyesteramides with copolymers of ethylene and vinyl acetate; and methods for using these polyesteramides or mixtures for the adhesion of organic or inorganic substrates to themselves or to each other, or as sealing compounds.
Inventors
- 👤 Manfred Drawert
- 👤 Wolfgang Imoehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:42
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44; C09; C09J; C09J177/00; C09J177/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A polyesteramide prepared by the condensation of (A) a dimerized fatty acid having 16 to 44 carbon atoms, with (B) ethylene diamine, with (C) at least one diamine of the formula H.sub.2 N--R--NH.sub.2, wherein R is aliphatic hydrocarbon having 3 to 36 carbon atoms which can be interrupted by one or more hetero atoms, and with (D) diglycolamine.
Claim 2
Dependent Claim
58 words
A polyesteramide prepared by the condensation of (A) a dimerized fatty acid having 16 to 44 carbon atoms, with (B) ethylene diamine, with (C) at least one diamine of the formula H.sub.2 N--R--NH.sub.2, wherein R is aliphatic hydrocarbon having 3 to 36 carbon atoms which can be interrupted by one or more hetero atoms, and with (D) diglycolamine.
Claim 3
Dependent Claim
50 words
A polyesteramide as in claim 1 which additionally comprises condensed therein (E) a dicarboxylic acid of the formula R.sup.2 OOC--R.sup.1 --COOR.sup.2, wherein R 1 is aliphatic, cycloaliphatic, aromatic, or araliphatic hydrocarbon having 4 to 12 carbon atoms and R 2 is hydrogen or alkyl having 1 to 8 carbon atoms.
Claim 4
Dependent Claim
131 words
A polyesteramide prepared by the condensation of substantially equivalent amounts of (1) an acid component comprising (A) a dimerized fatty acid having 16 to 44 carbon atoms, and (E) a dicarboxylic acid of the formula R.sup.2 OOC--R.sup.1 --COOR.sup.2, wherein R 1 is aliphatic, cycloaliphatic, aromatic, or araliphatic hydrocarbon having 1 to 8 carbon atoms, wherein the equivalence ratio of component (A) to component (E) is between 1:0.0 to 0.1:0.9, with (2) an amine and hydroxy component comprising (B) ethylene diamine, (C) at least one diamine of the formula H.sub.2 N--R--NH.sub.2, wherein R is aliphatic hydrocarbon having 3 to 36 carbon atoms which can be interrupted by one or more hetero atoms, and (D) diglycolamine wherein the equivalence ratio of components (B) and (C) to component (D) is between 0.3:0.7 and 0.9:0.1.
Claim 5
Dependent Claim
131 words
A polyesteramide prepared by the condensation of substantially equivalent amounts of (1) an acid component comprising (A) a dimerized fatty acid having 16 to 44 carbon atoms, and (E) a dicarboxylic acid of the formula R.sup.2 OOC--R.sup.1 --COOR.sup.2, wherein R 1 is aliphatic, cycloaliphatic, aromatic, or araliphatic hydrocarbon having 1 to 8 carbon atoms, wherein the equivalence ratio of component (A) to component (E) is between 1:0.0 to 0.1:0.9, with (2) an amine and hydroxy component comprising (B) ethylene diamine, (C) at least one diamine of the formula H.sub.2 N--R--NH.sub.2, wherein R is aliphatic hydrocarbon having 3 to 36 carbon atoms which can be interrupted by one or more hetero atoms, and (D) diglycolamine wherein the equivalence ratio of components (B) and (C) to component (D) is between 0.3:0.7 and 0.9:0.1.
Claim 6
Dependent Claim
55 words
A polyesteramide as in claim 3 wherein the equivalence ratio of component (B) to component (C) is between 0.05:0.25 and 0.25:0.25 at the limiting diglycolamine (D) content of 0.7 equivalent, is between 0.1:0.8 and 0.8:0.1 at the limiting diglycolamine (D) content of 0.1 equivalent, and has intermediate values at diglycolamine contents between said limiting contents.
Claim 7
Dependent Claim
17 words
A mixture of a polyesteramide as in claim 3 with a copolymer of ethylene and vinyl acetate.
Claim 8
Dependent Claim
14 words
A mixture as in claim 5 comprising 50 percent or more of said copolymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |