US4256910A
Expired / Lapsed
US
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Liquid reactive polymers
Assignee: Goodrich Corp
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Filing: 1979-09-06
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Granted: 1981-03-17
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Expires: 1999-09-06
Abstract
Abstract Terminally unsaturated liquid epihalohydrin polymers are produced by polymerizing at least one epihalohydrin using hydroxyalkyl acrylate or methacrylates as a modifier. The polymerization is conducted in the presence of a catalytic amount of a trialkyl oxonium salt of an HMF 6 acid wherein M is an element selected from the group consisting of phosphorus, arsenic and antimony. The polymers are useful as tougheners for unsaturated polyester resin systems.
Inventors
- 👤 Chin C. Hsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:44
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/022; C08F299/024; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/105; C08G65/22; C08G65/24; C08G65/26; C08G65/2603; C08G65/2615
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
45 words
A terminally unsaturated liquid epihalohydrin polymer having the formula ##STR7## wherein Y is hydrogen or methyl, X is 2 to 10 and G is a polymeric backbone obtained by homopolymerizing an epihalohydrin, copolymerizing two or more epihalohydrins, or copolymerizing an epihalohydrin with a vicinal epoxide.
Claim 2
Dependent Claim
45 words
A terminally unsaturated liquid epihalohydrin polymer having the formula ##STR7## wherein Y is hydrogen or methyl, X is 2 to 10 and G is a polymeric backbone obtained by homopolymerizing an epihalohydrin, copolymerizing two or more epihalohydrins, or copolymerizing an epihalohydrin with a vicinal epoxide.
Claim 3
Dependent Claim
25 words
A polymer of claim 1 wherein said epihalohydrin is epichlorohydrin and said polymer has a number average molecular weight from about 100 to about 100,000.
Claim 4
Dependent Claim
46 words
A polymer of claim 2 wherein said backbone G also contains copolymerized units of at least one other epoxide having the formula ##STR8## wherein each R is selected from the group consisting of hydrogen, alkyl, alkoxyalkyl and phenyl radicals, but at lest one R is hydrogen.
Claim 5
Dependent Claim
13 words
A polymer of claim 3 wherein said other epoxide is an alkylene oxide.
Claim 6
Dependent Claim
16 words
A polymer of claim 4 wherein said alkylene oxide is ethylene oxide or a propylene oxide.
Claim 7
Dependent Claim
22 words
A polymer of claim 2 wherein said polymer has a number average molecular weight M n from about 100 to about 100,000.
Claim 8
Dependent Claim
15 words
A polymer of claim 2 wherein Y is hydrogen and X is 2 to 4.
Claim 9
Dependent Claim
15 words
A polymer of claim 2 wherein Y is methyl and X is 2 to 4.
Claim 10
Dependent Claim
30 words
A polymer of claim 2 wherein said backbone G also contain copolymerized units of at least one other epoxide of the formula ##STR9## wherein R is an ethylenically unsaturated radical.
Claim 11
Dependent Claim
83 words
A process for the manufacture of a terminally unsaturated liquid epihalohydrin polymer which comprises polymerizing said epihalohydrin together with a hydroxyalkyl acrylate or methacrylate in the presence of a catalytic amount of a trialkyl oxonium salt of an HMF 6 acid wherein M is an element selected from the group consisting of phosphorus, arsenic and antimony, and said polymer has the formula ##STR10## wherein Y is hydrogen or methyl, and G is a polymeric backbone comprising polymerized units of at least one epihalohydrin.
Claim 12
Dependent Claim
83 words
A process for the manufacture of a terminally unsaturated liquid epihalohydrin polymer which comprises polymerizing said epihalohydrin together with a hydroxyalkyl acrylate or methacrylate in the presence of a catalytic amount of a trialkyl oxonium salt of an HMF 6 acid wherein M is an element selected from the group consisting of phosphorus, arsenic and antimony, and said polymer has the formula ##STR10## wherein Y is hydrogen or methyl, and G is a polymeric backbone comprising polymerized units of at least one epihalohydrin.
Claim 13
Dependent Claim
19 words
A process of claim 10 wherein said epihalohydrin is epichlorohydrin, and said HMF 6 acid is HPF 6 .
Claim 14
Dependent Claim
17 words
A process of claim 11 wherein the hydroxyalkyl acrylate is 2-hydroxyl ethyl acrylate or hydroxyl ethyl methacrylate.
Claim 15
Dependent Claim
65 words
A process of claim 12 wherein said polymerization is carried out at a temperature in the range of 0° C. to 110° C., and said backbone G also contains polymerized units of at least one other epoxide having the formula ##STR11## wherein each R is selected from the group consisting of hydrogen, alkyl, alkoxyalkyl, phenyl and unsaturated radicals, but at least one R is hydrogen.
Claim 16
Dependent Claim
15 words
A process of claim 13 wherein the trialkyloxonium salt of HPF 6 is triethyloxonium hexafluorophosphate.
Claim 17
Dependent Claim
13 words
A process of claim 14 wherein said other epoxide is an alkylene oxide.
Claim 18
Dependent Claim
15 words
A process of claim 15 wherein said alkylene oxide is ethylene oxide or propylene oxide.
Claim 19
Dependent Claim
9 words
A process of claim 16 wherein R is hydrogen.
Claim 20
Dependent Claim
19 words
A process of claim 10 wherein said epihalohydrin is epichlorohydrin, and said HMF 6 acid is HAsF 6 .
Claim 21
Dependent Claim
19 words
A process of claim 10 wherein said epihalohydrin is epichlorohydrin, and said HMF 6 acid is HSbF 6 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |