US4058658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of ω-bromoalkyl esters of acyclic unsaturated dicarboxylic acids
Assignee: Monsanto Co
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Filing: 1975-12-22
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Granted: 1977-11-15
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Expires: 1995-12-22
Abstract
Abstract Copolymers are prepared from ω-bromoalkyl ester of acyclic unsaturated dicarboxylic acids and compounds copolymerizable therewith. The copolymers are useful as flame retardant plasticizers for polymers.
Inventors
- 👤 Albert W. Morgan
- 👤 Charles S. Shull
- 👤 William Vanderlinde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:43
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/10; C08F22/12; C08F22/18; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11; C09; C09K; C09K21/00; C09K21/06; C09K21/08; C09K21/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
50 words
Copolymer of the formula ##STR3## wherein R is the monomeric unit derived from the polymerization of an ethylenically unsaturated comonomer the reactivity value of which, when multiplied by the reactivity value of diethyl fumarate, is less than one and n has a value of from about 10 to about 2,000.
Claim 2
Dependent Claim
50 words
Copolymer of the formula ##STR3## wherein R is the monomeric unit derived from the polymerization of an ethylenically unsaturated comonomer the reactivity value of which, when multiplied by the reactivity value of diethyl fumarate, is less than one and n has a value of from about 10 to about 2,000.
Claim 3
Dependent Claim
9 words
Copolymer of claim 1 wherein said alkyl is butyl.
Claim 4
Dependent Claim
10 words
Copolymer of claim 1 wherein said comonomer is triallyl cyanurate.
Claim 5
Dependent Claim
10 words
Copolymer of claim 1 wherein said comonomer is vinyl acetate.
Claim 6
Dependent Claim
10 words
Copolymer of claim 1 wherein said comonomer is ethyl acrylate.
Claim 7
Dependent Claim
6 words
Copolymer of bis(4-bromobutyl)fumarate and triallyl cyanurate.
Claim 8
Dependent Claim
6 words
Copolymer of bis(4-bromobutyl)fumarate and triallyl cyanurate.
Claim 9
Dependent Claim
6 words
Copolymer of bis(4-bromobutyl)fumarate and vinyl acetate.
Claim 10
Dependent Claim
6 words
Copolymer of bis(4-bromobutyl)fumarate and vinyl acetate.
Claim 11
Dependent Claim
6 words
Copolymer of bis(4-bromobutyl)fumarate and ethyl acrylate.
Claim 12
Dependent Claim
6 words
Copolymer of bis(4-bromobutyl)fumarate and ethyl acrylate.
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) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |