US4293682A
Expired / Lapsed
US
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Nitrogen containing compounds and compositions
Assignee: MILLIKEN RESEARCH CORPORTION A CORP OF S C
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Filing: 1980-05-12
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Granted: 1981-10-06
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Expires: 2000-05-12
Abstract
Abstract Nitrogen-containing compounds are provided which may be represented structurally as: <IMAGE> wherein R1 and R2 are each independently selected from hydrogen and lower alkyl and R3 is selected from hydrogen, lower alkyl, aryl and <IMAGE> wherein R4 is selected from H and lower alkyl.
Inventors
- 👤 Edward W. Kluger
- 👤 Tien-Kuei Su
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:13
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5006; C08G59/62; C08G59/64
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
41 words
A nitrogen-containing compound selected from the group consisting of: ##STR11## wherein R 1 and R 2 are lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR12## wherein R 4 is selected from H and lower alkyl.
Claim 2
Dependent Claim
41 words
A nitrogen-containing compound selected from the group consisting of: ##STR11## wherein R 1 and R 2 are lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR12## wherein R 4 is selected from H and lower alkyl.
Claim 3
Dependent Claim
19 words
The nitrogen-containing compound of claim 1, wherein R 1 and R 2 are methyl and R 3 is H.
Claim 4
Dependent Claim
25 words
The nitrogen-containing compounds of claim 1, wherein R 1 is H, R 2 is selected from H, methyl and ethyl and R 3 is H.
Claim 5
Dependent Claim
24 words
The nitrogen-containing compound of claim 1, where R 1 and R 2 are methyl and R 3 is selected from lower alkyl and aryl.
Claim 6
Dependent Claim
26 words
The nitrogen-containing compound of claim 1 wherein R 1 is H, R 2 is H or lower alkyl and R 3 is lower alkyl or aryl.
Claim 7
Dependent Claim
29 words
The nitrogen-containing compound of claim 1, wherein R 1 and R 2 are methyl and R 3 is: ##STR13## wherein R 4 is selected from H and lower alkyl.
Claim 8
Dependent Claim
36 words
The nitrogen-containing compound of claim 1, where R 1 and R 2 are each independently selected from H and lower alkyl and R 3 is ##STR14## where R 4 is selected from H and lower alkyl.
Claim 9
Dependent Claim
54 words
A curable epoxy resin composition comprising an epoxy resin and an epoxy resin curing agent, wherein the epoxy resin curing agent is represented by the formula: ##STR15## wherein R 1 and R 2 are each independently selected from hydrogen and lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR16##
Claim 10
Dependent Claim
54 words
A curable epoxy resin composition comprising an epoxy resin and an epoxy resin curing agent, wherein the epoxy resin curing agent is represented by the formula: ##STR15## wherein R 1 and R 2 are each independently selected from hydrogen and lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR16##
Claim 11
Dependent Claim
23 words
The curable epoxy resin composition of claim 8, wherein said epoxy resin is selected from the polyepoxides having at least two ##STR17## groups.
Claim 12
Dependent Claim
14 words
The epoxy resin composition of claim 9, wherein said ##STR18## groups are terminal groups.
Claim 13
Dependent Claim
17 words
The epoxy resin composition of claim 9, wherein said epoxy resin is a diglycidyl ether of bis-phenol.
Claim 14
Dependent Claim
37 words
The epoxy resin composition of claim 8, wherein said epoxy resin curing agent is represented by the formula set forth in claim 8 and wherein R 1 and R 2 are methyl and R 3 is H.
Claim 15
Dependent Claim
57 words
A cured epoxy resin product comprising the product obtained on curing a curable epoxy resin composition comprising an epoxy resin and an epoxy resin curing agent having the formula ##STR19## wherein R 1 and R 2 are each independently selected from hydrogen and lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR20##
Claim 16
Dependent Claim
57 words
A cured epoxy resin product comprising the product obtained on curing a curable epoxy resin composition comprising an epoxy resin and an epoxy resin curing agent having the formula ##STR19## wherein R 1 and R 2 are each independently selected from hydrogen and lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR20##
Claim 17
Dependent Claim
75 words
In a method for curing an epoxy resin composition comprising incorporating an epoxy resin curing agent into an epoxy resin and heating the combination of the epoxy resin and the epoxy curing agent, the improvement which comprises said epoxy resin curing agent being represented by the formula: ##STR21## wherein R 1 and R 2 are each independently selected from hydrogen and lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR22##
Claim 18
Dependent Claim
75 words
In a method for curing an epoxy resin composition comprising incorporating an epoxy resin curing agent into an epoxy resin and heating the combination of the epoxy resin and the epoxy curing agent, the improvement which comprises said epoxy resin curing agent being represented by the formula: ##STR21## wherein R 1 and R 2 are each independently selected from hydrogen and lower alkyl and R 3 is selected from hydrogen, lower alkyl, aryl and ##STR22##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |