Patent US3697490A successfully refreshed from Google Patents.
US3697490A
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Polymers of alkoxy alkyl acrylates, alkyl acrylates and substituted norbornene
Assignee: Goodrich Corp
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Filing: 1971-06-21
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Granted: 1972-10-10
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Expires: 1991-06-21
Abstract
Abstract Acrylate elastomers having an improved retention of abrasion resistance after oil immersion, which are readily vulcanized, are prepared with 9 to 59 percent by weight alkoxy alkyl acrylate, 40 to 90 percent by weight alkyl acrylate and about 0.5 to 5.5 percent by weight substituted norbornene compounds.
Inventors
- 👤 Philip H Starmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:50
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
The interpolymer of claim 1 wherein the alkoxy alkyl acrylate is methoxy ethyl acrylate.
Claim 2
Dependent Claim
49 words
The interpolymer of claim 1 wherein the alkoxy alkyl acrylate R1 contains one to two carbon atoms, R2 contains one to two carbon atoms, R of the alkyl acrylate contains one to four carbon atoms, and the amount of alkoxy alkyl acrylate is from 25 to about 50 percent.
Claim 3
Dependent Claim
23 words
The interpolymer of claim 1 wherein the alkoxy alkyl acrylate is ethoxyethyl acrylate and the interpolymer contains 0.5 to 5.5 percent of 5-chloroacetoxymethyl-2-norbornene.
Claim 4
Dependent Claim
10 words
The interpolymer of claim 1 wherein the cyanoalkyl is beta-cyanoethyl.
Claim 5
Dependent Claim
9 words
The interpolymer of claim 1 in a vulcanized state.
Claim 6
Dependent Claim
9 words
The interpolymer of claim 4 in a vulcanized state.
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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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |