US4394493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinkable poly(oxyalkylene) graft copolymers
Assignee: Union Carbide Corp
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Filing: 1981-09-30
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Granted: 1983-07-19
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Expires: 2001-09-30
Abstract
Abstract Crosslinkable graft copolymers of poly(oxyalkylene) are provided which comprise from about 1 percent by weight of a substituted N-methylol derivative of acrylamide grafted onto a poly(oxyalkylene)-polymer.
Inventors
- 👤 David J. Bartkovitz
- 👤 George H. Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:50
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/06; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
A graft copolymer of N-(isobutoxymethyl)acrylamide and a poly(oxyalkylene) having up to about 70 percent by weight of said N-(isobutoxymethyl)-acrylamide grafted onto a poly(oxyalkylene) polymer having the formula: R"[(OC.sub.n H.sub.2n).sub.z OR']a wherein R" is a hydrocarbon radical containing up to 10 carbons having a valence of a, a is an integer having a value from 1 to 4, R' is a hydrogen atom or a monovalent hydrocarbon radical containing up to 6 carbons, n has a value of 2 to 4, and z is an integer having a value of about 2 to about 800, wherein said graft copolymer is crosslinkable and film formable.
Claim 2
Dependent Claim
103 words
A graft copolymer of N-(isobutoxymethyl)acrylamide and a poly(oxyalkylene) having up to about 70 percent by weight of said N-(isobutoxymethyl)-acrylamide grafted onto a poly(oxyalkylene) polymer having the formula: R"[(OC.sub.n H.sub.2n).sub.z OR']a wherein R" is a hydrocarbon radical containing up to 10 carbons having a valence of a, a is an integer having a value from 1 to 4, R' is a hydrogen atom or a monovalent hydrocarbon radical containing up to 6 carbons, n has a value of 2 to 4, and z is an integer having a value of about 2 to about 800, wherein said graft copolymer is crosslinkable and film formable.
Claim 3
Dependent Claim
104 words
A graft copolymer of N-(methylol)-acrylamide and a poly(oxyalkylene) having up to about 70 percent by weight of said N-(methylol)-acrylamide grafted onto a poly(oxyalkylene) polymer having the formula: R"[(OC.sub.n H.sub.2n).sub.z OR ']a wherein R' is a hydrocarbon radical containing up to 10 carbons having a valence of a, a is an integer having a value from 1 to 4, R' is a hydrogen atom or a monovalent hydrocarbon radical containing up to 6 carbons, n has a value of 2 to 4, and z is an integer having a value of about 2 to about 800, wherein said graft copolymer is crosslinkable and film formable.
Claim 4
Dependent Claim
104 words
A graft copolymer of N-(methylol)-acrylamide and a poly(oxyalkylene) having up to about 70 percent by weight of said N-(methylol)-acrylamide grafted onto a poly(oxyalkylene) polymer having the formula: R"[(OC.sub.n H.sub.2n).sub.z OR ']a wherein R' is a hydrocarbon radical containing up to 10 carbons having a valence of a, a is an integer having a value from 1 to 4, R' is a hydrogen atom or a monovalent hydrocarbon radical containing up to 6 carbons, n has a value of 2 to 4, and z is an integer having a value of about 2 to about 800, wherein said graft copolymer is crosslinkable and film formable.
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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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |