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Patent US4778869A successfully refreshed from Google Patents.
US4778869A
Expired / Lapsed
US
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Activated ester monomers and polymers
Assignee: Wyeth Holdings LLC
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Filing: 1986-12-08
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Granted: 1988-10-18
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Expires: 2006-12-08
Abstract
Abstract Ethylenically unsaturated monomers containing activated ester groups are used to make polymers and copolymers which are useful in coatings, adhesives and moldings.
Inventors
- 👤 Peter J. Schirmann
- 👤 Werner J. Blank
- 👤 Girish G. Parekh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:49
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; C08F20/00; C08F20/02; C08F20/10; C08F22/00; C08F22/10; C08F220/10; C08F220/26; C08F220/28; C08F246/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
54 words
A polymer prepared from the copolymerization of monomers consisting essentially of: (a) an alkyl acrylamidoglycolate alkyl ether wherein the alkyl groups are the same or different and have 1 to 8 carbon atoms, and; (b) one or more vinyl monomers selected from the group of acrylates, methacrylates, styrene, acrylonitriles, vinyl ethers, and vinyl esters.
Claim 2
Dependent Claim
54 words
A polymer prepared from the copolymerization of monomers consisting essentially of: (a) an alkyl acrylamidoglycolate alkyl ether wherein the alkyl groups are the same or different and have 1 to 8 carbon atoms, and; (b) one or more vinyl monomers selected from the group of acrylates, methacrylates, styrene, acrylonitriles, vinyl ethers, and vinyl esters.
Claim 3
Dependent Claim
26 words
The copolymer of claim 1 wherein monomer (a) is selected from methyl acrylamidoglycolate methyl ether, butyl acrylamidoglycolate butyl ether, ethyl acrylamidoglycolate ethyl ether, and mixtures thereof.
Claim 4
Dependent Claim
22 words
The copolymer of claim 1 wherein monomer (b) is selected from acrylates, methacrylates, styrene, acrylonitriles, vinyl ethers, vinyl esters, and mixtures thereof.
Claim 5
Dependent Claim
23 words
The copolymers of claim 3 wherein the monomer (b) is selected from methylacrylate, ethylacrylate, propylacrylate, butylacrylate, 2-ethylhexylacrylate, methylmethacrylate, ethylmethacrylate, butylmethacrylate and mixtures thereof.
Claim 6
Dependent Claim
21 words
The copolymer of claim 3 wherein the monomer (b) is selected from styrene, alphamethylstyrene, acrylonitrile, methacrylonitrile, vinyl acetate and mixtures thereof.
Claim 7
Dependent Claim
15 words
The copolymer of claim 1 containing about 10 to 40 weight percent of monomer (a).
Claim 8
Dependent Claim
58 words
A polymer prepared from the copolymerization of monomers consisting of (a) an alkyl acrylamidoglycolate alkyl ether wherein the alkyl groups are the same or different and are selected from methyl, ethyl, propyl, isopropyl, butyl, isobutyl and tertiary butyl. (b) one or more vinyl monomers selected from the group of acrylates, methacrylates, styrene, acrylonitriles, vinyl ethers, and vinyl esters.
Claim 9
Dependent Claim
58 words
A polymer prepared from the copolymerization of monomers consisting of (a) an alkyl acrylamidoglycolate alkyl ether wherein the alkyl groups are the same or different and are selected from methyl, ethyl, propyl, isopropyl, butyl, isobutyl and tertiary butyl. (b) one or more vinyl monomers selected from the group of acrylates, methacrylates, styrene, acrylonitriles, vinyl ethers, and vinyl esters.
Claim 10
Dependent Claim
21 words
The copolymer of claim 1 wherein monomer (a) is present in about 5 to 50 percent by weight of the copolymer.
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) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |