US3664980A
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Polyamides of polymeric fat acids and 1-amino-3-aminomethyl-3,5,5-trimethyl cyclohexane
Assignee: General Mills Inc
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Filing: 1970-06-22
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Granted: 1972-05-23
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Expires: 1990-06-22
Abstract
Abstract There is disclosed polymeric fat acid polyamides of 1-amino-3aminomethyl-3,5,5-trimethyl cyclohexane. Copolymerizing dibasic acids, amino acids or lactams or other diprimary diamines may also be employed. The polyamides are prepared under conventional amidification methods involving heating at 100*-300* C. for a time sufficient to effect amidification. The polymers find utility as adhesives (hot melt), self-supporting films and are particularly useful in the shoe industry for box toe printing applications.
Inventors
- 👤 Leonard R Vertnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:38
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/34
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
14 words
A polyamide as defined in claim 1 wherein said temperature is about 250* C.
Claim 2
Dependent Claim
24 words
A polyamide as defined in claim 1 wherein said polymeric fat acid is a polymerized monocarboxylic aliphatic hydrocarbon acid of from 16-20 carbon atoms.
Claim 3
Dependent Claim
23 words
A polyamide as defined in claim 1 wherein said polymeric fat acid is a polymerized monocarboxylic, aliphatic, hydrocarbon acid having 18 carbon atoms.
Claim 4
Dependent Claim
18 words
A polyamide as defined in claim 1 wherein said polymeric fat acid is polymerized tall oil fatty acids.
Claim 5
Dependent Claim
20 words
A polyamide as defined in claim 1 wherein the ratio of amine to acid equivalents employed is at least 0.95.
Claim 6
Dependent Claim
148 words
A polyamide composition having a tensile modulus greater than about 40,000 psi comprising the amidification product at temperatures of from 100* to 300* C. wherein the molar equivalents of amine employed are essentially equal to the molar equivalents of carboxyl groups employed of a. 100 carboxyl equivalent percent of a polymeric fat acid having a dimeric fat acid content greater than 85 percent by weight b. from 80-100 amine equivalent percent of 1-amino-3-aminomethyl-3,5,5-trimethyl cyclohexane and c. from 0-20 equivalent percent of a diamine selected from the group consisting of alkylene diamines in which said alkylene group has from two to six carbon atoms, 1,3-di(4 -piperidyl) propane and dimer diamine, and the sum of amine equivalents of (b) and (c) being substantially 100 equivalent percent and provided that when said diamine is dimer diamine the amine equivalent percent of said 1-amino-3-aminomethyl-3,5,5-trimethyl cyclohexane is not less than about 95 percent.
Claim 7
Dependent Claim
42 words
A polyamide as defined in claim 7 wherein said polymeric fat acid is a polymerized monocarboxylic, aliphatic, hydrocarbon acid having 18 carbon atoms and having a dimeric fat acid content greater than 90 percent by weight and said diamine is ethylene diamine.
Claim 8
Dependent Claim
42 words
A polyamide as defined in claim 7 wherein said polymeric fat acid is a polymerized monocarboxylic, aliphatic, hydrocarbon acid having 18 carbon atoms and having a dimeric fat acid content greater than 90 percent by weight and said diamine is hexamethylene diamine.
Claim 9
Dependent Claim
41 words
A polyamide as defined in claim 7 wherein said polymeric fat acid is a polymerized monocarboxylic, aliphatic, hydrocarbon acid having 18 carbon atoms and having a dimeric fat acid content greater than 90 percent by weight and said diamine is 1,3-diaminopropane.
Claim 10
Dependent Claim
60 words
A polyamide as defined in claim 7 wherein said polymeric fat acid is a polymerized monocarboxylic aliphatic hydrocarbon acid having 18 carbon atoms and having a dimeric fat acid content greater than 90 percent by weight and said diamine is dimer diamine having the formula H2N-D-NH2 where D is the 36-carbon hydrocarbon radical of a dimerized 18-carbon atom fat acid.
Claim 11
Dependent Claim
42 words
A polyamide as defined in claim 7 wherein said polymeric fat acid is a polymerized monocarboxylic aliphatic hydrocarbon acid having 18 carbon atoms and having a dimeric fat acid content greater than 90 percent by weight and said diamine is 1,3-di(4-piperidyl) propane.
Claim 12
Dependent Claim
160 words
A polyamide composition having a tensile modulus greater than about 40,000 psi comprising the amidification product at temperatures of from 100*-300* C. wherein the molar equivalent amounts of amine employed are substantially equal to the molar equivalents of carboxyl groups employed of a. 50-100 equivalent percent of a polymeric fat acid having a dimeric fat acid content greater than 85 percent by weight b. 0-50 equivalent percent of sebacic acid c. 80-100 amine equivalent percent of 1-amino-3-aminomethyl-3,5, 5-trimethyl cyclohexane and d. 0-20 equivalent percent of a diprimary diamine selected from the group consisting of alkylene diamines in which said alkylene group has from two to six carbon atoms and dimer diamine, and the sum of carboxyl equivalents of (a) and (b) and the sum of amine equivalents of (c) and (d) being substantially 100 equivalent percent and provided that when said diamine is dimer diamine the amine equivalent percent of diamine 1-amino-3-aminomethyl-3,5,5-trimethyl cyclohexane is not less than about 95 percent.
Claim 13
Dependent Claim
42 words
A polyamide as defined in claim 13 wherein said polymeric fat acid is a polymerized monocarboxylic aliphatic hydrocarbon acid having 18 carbon atoms and having a dimeric fat acid content greater than 90 percent by weight and said diamine is ethylene diamine.
Claim 14
Dependent Claim
60 words
A polyamide as defined in claim 13 wherein said polymeric fat acid is a polymerized monocarboxylic aliphatic hydrocarbon acid having 18 carbon atoms and having a dimeric fat acid content greater than 90 percent by weight and said diamine is dimer diamine having the formula H2N-D-NH2 where D is the 36-carbon hydrocarbon radical of a dimerized 18-carbon atom fat acid.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |