US4251648A
Expired / Lapsed
US
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Peroxide cured epihalohydrin polymers
Assignee: Zeon Chemical LP
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Filing: 1977-06-27
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Granted: 1981-02-17
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Expires: 1997-06-27
Abstract
Abstract Compositions containing copolymers of epihalohydrins, an unsaturated epoxy comonomer, and optionally, ethylene oxide are readily cured to useful articles with peroxides when such compounds contain an acid acceptor. Covulcanizable compositions are prepared from mixtures of the epihalohydrin and epoxy copolymers with peroxy vulcanizable polymers.
Inventors
- 👤 John T. Oetzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:10
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G65/24; C08K; C08K5/00; C08K5/04; C08K5/14
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
40 words
A composition comprising a polymer of an epihalohydrin and an unsaturated glycidyl ether of the general formula ##STR2## wherein R is an ethylenically unsaturated radical, an acid acceptor an unsaturated polyfunctional methacrylate and a curing agent consisting an organic peroxide.
Claim 2
Dependent Claim
40 words
A composition comprising a polymer of an epihalohydrin and an unsaturated glycidyl ether of the general formula ##STR2## wherein R is an ethylenically unsaturated radical, an acid acceptor an unsaturated polyfunctional methacrylate and a curing agent consisting an organic peroxide.
Claim 3
Dependent Claim
19 words
A composition of claim 1 wherein the polymer contains 80 to 99% epichlorohydrin and 1 to 20% glycidyl ether.
Claim 4
Dependent Claim
107 words
A composition of claim 2 wherein the epihalohydrin is epichlorohydrin present in amounts of about 40 to 80 weight percent, there is about 15 to about 45 weight percent ethylene oxide, and from about 0.1 to about 20 weight percent of the unsaturated glycidyl ether copolymerized together, the acid acceptor is Group IA, IIA, or Group IVA compound present in amounts of greater than 0.1 to about 10 weight parts and containing some unsaturated polyfunctional methacrylate in amount up to 20 weight parts and greater than 0.1 to about 10 weight parts of a curing agent consisting of an organic peroxide per 100 weight parts of copolymer.
Claim 5
Dependent Claim
17 words
A composition of claim 3 wherein R of the unsaturated glycidyl ether is vinyl, allyl or alkenyl.
Claim 6
Dependent Claim
30 words
A composition of claim 4 wherein there is 1 to 10 parts of a polyunsaturated methacrylate selected from the group consisting of trimethylolpropane, trimethacrylate, ethylene dimethacrylate, and 1,3-butylene glycol dimethacrylate.
Claim 7
Dependent Claim
38 words
A composition of claim 4 containing about 1 to 10 weight parts of allyl glycidyl ether, and about 0.5 to about 10 weight parts of magnesium oxide and about 1 to 10 weight parts of trimethylol propane trimethacrylate.
Claim 8
Dependent Claim
39 words
A composition of claim 4 containing about 1 to 10 weight parts of allyl glycidyl ether, and about 0.5 to about 10 weight parts of dibasic lead phosphite and about 1 to 10 weight parts of trimethylol propane trimethacrylate.
Claim 9
Dependent Claim
13 words
A composition of claim 6 wherein the organic peroxide is an aryl hydroperoxide.
Claim 10
Dependent Claim
13 words
A composition of claim 7 wherein the organic peroxide is an aryl hydroperoxide.
Claim 11
Dependent Claim
48 words
A composition of claim 5 containing about 1 to 10 weight parts of allyl glycidyl ether, about 0.5 to about 10 weight parts of magnesium oxide or dibasic lead phosphite and about 1 to 10 weight parts of trimethylol propane trimethacrylate and the organic peroxide is dicumyl peroxide.
Claim 12
Dependent Claim
37 words
A composition of claim 4 containing about 1 to 10 weight parts of allyl glycidyl ether, and 0.5 to about 10 weight parts of calcium oxide and about 1 to 10 weight parts of trimethylol propane trimethacrylate.
Claim 13
Dependent Claim
14 words
A composition of claim 1 containing the epihalohydrin copolymer and a peroxy curable polymer.
Claim 14
Dependent Claim
14 words
A composition of claim 2 containing the epihalohydrin copolymer and a peroxy curable polymer.
Claim 15
Dependent Claim
12 words
A composition of claim 13 wherein said polymer is an unsaturated elastomer.
Claim 16
Dependent Claim
12 words
A composition of claim 14 wherein said unsaturated elastomer contains olefinic unsaturation.
Claim 17
Dependent Claim
14 words
A composition of claim 4 containing the epihalohydrin copolymer and a peroxy curable polymer.
Claim 18
Dependent Claim
21 words
A composition of claim 16 wherein there is present from 5 to 95 weight percent each of said copolymer and elastomer.
Claim 19
Dependent Claim
13 words
A composition of claim 17 wherein said elastomer is a diene containing elastomer.
Claim 20
Dependent Claim
12 words
A composition of claim 18 wherein said polymer is an olefin polymer.
Claim 21
Dependent Claim
13 words
A composition of claim 19 wherein said polymer is a copolymer of butadiene.
Claim 22
Dependent Claim
12 words
A composition of claim 20 wherein said polymer is a chlorinated polyolefin.
Claim 23
Dependent Claim
15 words
A composition of claim 21 wherein said polymer is a polymer of ethylene and propylene.
Claim 24
Dependent Claim
37 words
A composition of claim 4 containing about 1 to 10 weight parts of allyl glycidyl ether, and 1.5 to about 10 weight parts of calcium oxide and about 1 to 10 weight parts of trimethylol propane trimethacrylate.
References Cited (Backward Citations)
US4032479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |