Patent US3624245A successfully refreshed from Google Patents.
US3624245A
Expired / Lapsed
US
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Heat stabilized antistatic polyamides
Assignee: Monsanto Co
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Filing: 1970-02-25
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Granted: 1971-11-30
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Expires: 1990-02-25
Abstract
Abstract Tensile strength loss on heating is reduced, in polycarbonamides containing between 0.1 and 20.0 weight percent polyalkoxylated triglyceride of a fatty acid containing from 10 to 30 carbon atoms, by adding from 0.01 to 2.0 weight percent of a sterically hindered phenol.
Inventors
- 👤 Lawrence W Crovatt Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:47
CPC Classifications
C; C08; C08L; C08L77/00; C08K; C08K5/00; C08K5/04; C08K5/13; C08L77/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
19 words
A fiber-forming synthetic linear polycarbonamide as defined in claim 1, wherein said polyalkoxylated glyceride is polyalkoxylated hydrogenated castor oil.
Claim 2
Dependent Claim
35 words
A fiber-forming synthetic linear polycarbonamide as defined in claim 2, wherein said polyalkoxylated hydrogenated castor oil is present in an amount of from 1.0 to 15.0 weight percent, based on the weight of said polycarbonamide.
Claim 3
Dependent Claim
17 words
The fiber-forming synthetic linear polycarbonamide as set forth in claim 3, wherein said polycarbonamide is polyhexamethylene adipamide.
Claim 4
Dependent Claim
11 words
A textile fiber comprising the polycarbonamide as defined in claim 1.
Claim 5
Dependent Claim
11 words
A textile fiber comprising the polycarbonamide as defined in claim 3.
Claim 6
Dependent Claim
104 words
A fiber-forming synthetic linear polycarbonamide having recurring amide groups as an integral part of the main polymer chain, wherein said groups are separated from one another by at least two carbon atoms, and containing incorporated therein from 0.1 to 20 percent by weight, based on the weight of said polycarbonamide, of a polyalkoxylated triglyceride of a saturated fatty acid having 10 to 30 carbon atoms, wherein the polyalkoxy portion has a molecular weight of between about 2,000 and 20,000, and containing dissolved therein between about 0.01 to 2 percent by weight, based on the weight of said polycarbonamide, of the compound of the structure:
Claim 7
Dependent Claim
16 words
The polycarbonamide as defined in claim 7 wherein said polyalkoxylated triglyceride is polyethoxylated hydrogenated castor oil.
Claim 8
Dependent Claim
31 words
The polycarbonamide as defined in claim 8 wherein said castor oil is present in an amount between about 1.0 and 15 percent by weight, based on the weight of said polycarbonamide.
Claim 9
Dependent Claim
11 words
The polycarbonamide of claim 9, wherein said polycarbonamide is polyhexamethylene adipamide.
Claim 10
Dependent Claim
9 words
A textile fiber comprising the polycarbonamide of claim 7.
References Cited (Backward Citations)
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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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |