Patent US2366886A successfully refreshed from Google Patents.
US4463150A
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Acrylic or methacrylic terminated oligomers
Assignee: Rohm and Haas Co
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Filing: 1982-04-30
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Granted: 1984-07-31
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Expires: 2002-04-30
Abstract
Abstract Acrylic or methacrylic terminated unsaturated maleate or fumarate oligomers are disclosed. The oligomers can be reacted with other ethylenically unsaturated compounds through the acrylate, methacrylate, or maleate/fumarate functionality, they can also be reacted with amines through Michael addition to the acrylic or maleate unsaturation with or without a post reaction through the methacrylate functionality.
Inventors
- 👤 Everett J. Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:01
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; C08F299/00; C08F299/02; C08F299/04; C08F299/0485; C08F299/0492; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A polymer formed by the free radical initiated reaction of an oligomer comprising the formula (I) ##STR9## wherein n is greater than or equal to 2; R=--H, --CH 3 , or --C 2 H 5 ; R', R"=--H, --CH 3 , --C 2 H 5 , --CH 2 Cl, --CH 2 Br, --C 6 H 5 , --CH 2 OCOCH═CH 2 , --CH 2 OCOC(CH 3 )═CH 2 , --CH 2 OCH 2 CH═CH 2 , --CH 2 OC 6 H 5 , or --CH 2 OC 4 H 9 , or R' plus R" form a cyclic ring --C 4 H 8 --; and R"'=--H or --C 2 H 4 OH.
Claim 2
Dependent Claim
112 words
A polymer formed by the free radical initiated reaction of an oligomer comprising the formula (I) ##STR9## wherein n is greater than or equal to 2; R=--H, --CH 3 , or --C 2 H 5 ; R', R"=--H, --CH 3 , --C 2 H 5 , --CH 2 Cl, --CH 2 Br, --C 6 H 5 , --CH 2 OCOCH═CH 2 , --CH 2 OCOC(CH 3 )═CH 2 , --CH 2 OCH 2 CH═CH 2 , --CH 2 OC 6 H 5 , or --CH 2 OC 4 H 9 , or R' plus R" form a cyclic ring --C 4 H 8 --; and R"'=--H or --C 2 H 4 OH.
Claim 3
Dependent Claim
120 words
A copolymer formed by the free radical initiated reaction of an oligomer comprising the formula (I) ##STR10## wherein n is greater than or equal to 2; R=--H, --CH 3 , or --C 2 H 5 ; R', R"=--H, --CH 3 , --C 2 H 5 , --CH 2 Cl, --CH 2 Br, --C 6 H 5 , --CH 2 OCOCH═CH 2 , --CH 2 OCOC(CH 3 )═CH 2 , --CH 2 OCH 2 CH═CH 2 , --CH 2 OC 6 H 5 , or --CH 2 OC 4 H 9 , or R' plus R" form a cyclic ring --C 4 H 8 --; and R"'=--H or --C 2 H 4 OH; and at least one other ethylenically unsaturated monomer.
Claim 4
Dependent Claim
120 words
A copolymer formed by the free radical initiated reaction of an oligomer comprising the formula (I) ##STR10## wherein n is greater than or equal to 2; R=--H, --CH 3 , or --C 2 H 5 ; R', R"=--H, --CH 3 , --C 2 H 5 , --CH 2 Cl, --CH 2 Br, --C 6 H 5 , --CH 2 OCOCH═CH 2 , --CH 2 OCOC(CH 3 )═CH 2 , --CH 2 OCH 2 CH═CH 2 , --CH 2 OC 6 H 5 , or --CH 2 OC 4 H 9 , or R' plus R" form a cyclic ring --C 4 H 8 --; and R"'=--H or --C 2 H 4 OH; and at least one other ethylenically unsaturated monomer.
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) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |