Patent US3607792A successfully refreshed from Google Patents.
US3607792A
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Polyoxyalkylene polyamine vulcanizing agents for epichlorohydrin polymers
Assignee: Texaco Inc
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Filing: 1969-01-02
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Granted: 1971-09-21
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Expires: 1989-01-02
Abstract
Abstract Polyoxypropylene polyamines are vulcanizing agents for halogencontaining polymers such as polyepichlorohydrin. The cured polymers are useful specialty rubbers which are resistant to ozone attack.
Inventors
- 👤 George Phillip Speranza
- 👤 Harold George Waddill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:47
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02; C08L71/03; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/321; C08G65/325; C08G65/3255; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
18 words
A method for vulcanizing a chlorine-containing polymer according to claim 1 wherein A of the formula is propylene.
Claim 2
Dependent Claim
28 words
A method for vulcanizing a polymer according to claim 2 wherein the curing agent is a polyoxypropylene polyamine having a molecular weight from about 150 to about 3,000.
Claim 3
Dependent Claim
27 words
A method for vulcanizing a polymer according to claim 3 wherein x in the polyoxypropylene polyamine formula has an average value of 6 and y is 2.
Claim 4
Dependent Claim
27 words
A method for vulcanizing a polymer according to claim 3 wherein x in the polyoxypropylene polyamine formula has an average value of 3 and y is 2.
Claim 5
Dependent Claim
27 words
A method for vulcanizing a polymer according to claim 3 wherein x in the polyoxypropylene polyamine formula has an average value of 15 and y is 2.
Claim 6
Dependent Claim
27 words
A method for vulcanizing a polymer according to claim 3 wherein x in the polyoxypropylene polyamine formula has an average value of 30 and y is 2.
Claim 7
Dependent Claim
27 words
A method for vulcanizing a polymer according to claim 3 wherein x in the polyoxypropylene polyamine formula has an average value of 15 and y is 3.
Claim 8
Dependent Claim
56 words
A homopolymer of epichlorohydrin or copolymer of epichlorohydrin and ethylene oxide vulcanized with a curing agent of the formula R((OA)xNH2)y where R is an aliphatic radical, A is an alkylene radical of from two to four carbon atoms, x has an average value from 1 to 50, and y is an integer from 2 to 4.
Claim 9
Dependent Claim
13 words
A polymer according to claim 9 wherein A of the formula is propylene.
Claim 10
Dependent Claim
24 words
A polymer according to claim 10 wherein the curing agent is a polyoxypropylene polyamine having a molecular weight from about 150 to about 3,000.
Claim 11
Dependent Claim
23 words
A polymer according to claim 11 wherein x in the polyoxypropylene polyamine formula has an average value of 6 and y is 2.
Claim 12
Dependent Claim
19 words
A polymer according to claim 11 wherein x in the polyoxypropylene polyamine formula is 3 and y is 2.
Claim 13
Dependent Claim
28 words
A polymer according to claim 11 wherein x in the polyoxypropylene average value of the polyoxypropylene polyamine formula has an 21 value of 15 and y is 2.
Claim 14
Dependent Claim
23 words
A polymer according to claim 11 wherein x in the polyoxypropylene polyamine formula has an average value of 30 and y is 2.
Claim 15
Dependent Claim
23 words
A polymer according to claim 11 wherein x in the polyoxypropylene polyamine formula has an average value of 15 and y is 3.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |