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Patent US3715341A successfully refreshed from Google Patents.
US3715341A
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Modification of carboxyl group containing polymer with aziridinyl substituted unsaturated long chain acyclic hydrocarbons
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1971-01-19
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Granted: 1973-02-06
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Expires: 1991-01-19
Abstract
Abstract Unsaturated, long chain, acyclic hydrocarbons having one or two aziridinyl substituents are prepared by reaction of an alkylenimino and a long chain alkatriene in the presence of an alkali metal or equivalent catalyst. The resulting aziridinyl products, e.g., the ethylenimine adduct of allocimene, contain at least three reactive groups, i.e., a combination of two aziridinyl groups and one olefinic unsaturation or one aziridinyl group and two olefinic unsaturations.
Inventors
- 👤 H Uelzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:25
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/506; C08G59/5066; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
Cross-linked or chain-extended polymer compositions made by the process which comprises: a. forming a mixture of a major portion of a carboxyl group containing polymer and a minor portion of an unsaturated acyclic aziridinyl hydrocarbon of the formula: R1-CnH2n x-R2 wherein: R2 is hydrogen or R1, R3, R4, R5 and R6 are hydrogen or 1 to 4 carbon atom alkyl radicals, n is an integer from 10 to 20, and x is the integer 3 when R2 is hydrogen and the integer 2 when R2 is R1, and b. heating the resulting mixture to an elevated temperature sufficient to produce reaction between said polymer and said aziridinyl hydrocarbon.
Claim 2
Dependent Claim
108 words
Cross-linked or chain-extended polymer compositions made by the process which comprises: a. forming a mixture of a major portion of a carboxyl group containing polymer and a minor portion of an unsaturated acyclic aziridinyl hydrocarbon of the formula: R1-CnH2n x-R2 wherein: R2 is hydrogen or R1, R3, R4, R5 and R6 are hydrogen or 1 to 4 carbon atom alkyl radicals, n is an integer from 10 to 20, and x is the integer 3 when R2 is hydrogen and the integer 2 when R2 is R1, and b. heating the resulting mixture to an elevated temperature sufficient to produce reaction between said polymer and said aziridinyl hydrocarbon.
Claim 3
Dependent Claim
16 words
A composition of claim 1 wherein said carboxyl group containing polymer is carboxyl-terminated conjugated diolefin polymer.
Claim 4
Dependent Claim
13 words
A composition of claim 2 wherein said carboxyl-terminated diolefin polymer is dicarboxyl polybutadiene.
Claim 5
Dependent Claim
15 words
A composition of claim 1 wherein said aziridinyl hydrocarbon is the ethylenimine diadduct of allo-ocimene.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |