US4041104A
Expired / Lapsed
US
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High impact corrosion resistant polymers
Assignee: Occidental Chemical Corp
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Filing: 1975-08-29
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Granted: 1977-08-09
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Expires: 1995-08-29
Abstract
Abstract Impact resistant, corrosion resistant polymers are prepared from a polymerizble composition comprising (1) a vinyl monomer and (2) a prepolymer blend obtained by reacting a molar excess of organic diisocyanate with an hydroxyl terminated polydiene and subsequently reacting the product thereof with an hydroxyalkyl acrylate.
Inventors
- 👤 Jeffrey E. Selley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:10
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69; C08F; C08F299/00; C08F299/02; C08F299/06; C08G18/671; C08G18/672
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
121 words
A polymerizable composition comprising (A) a vinyl monomer, present in an amount of about 30 to 50 weight percent; and (B) a prepolymer blend, present in an amount of about 50 to 70 weight percent, obtained by the steps of (a) reacting an organic dissocyanate and a hydroxyl-terminated polydiene in a molar ratio of about 0.01 to about 0.2 moles of polydiene per mole of diisocyanate, wherein greater than 75% of the unsaturation present in said polydiene is of the 1,4-type and less than 25% of the unsaturation present is of the 1,2-type, and (b) reacting the product of step (a) with a hydroxyalkyl acrylate in a molar ratio of about 1.5 to about 2.0 moles per mole of said diisocyanate.
Claim 2
Dependent Claim
121 words
A polymerizable composition comprising (A) a vinyl monomer, present in an amount of about 30 to 50 weight percent; and (B) a prepolymer blend, present in an amount of about 50 to 70 weight percent, obtained by the steps of (a) reacting an organic dissocyanate and a hydroxyl-terminated polydiene in a molar ratio of about 0.01 to about 0.2 moles of polydiene per mole of diisocyanate, wherein greater than 75% of the unsaturation present in said polydiene is of the 1,4-type and less than 25% of the unsaturation present is of the 1,2-type, and (b) reacting the product of step (a) with a hydroxyalkyl acrylate in a molar ratio of about 1.5 to about 2.0 moles per mole of said diisocyanate.
Claim 3
Dependent Claim
34 words
A polymerizable composition according to claim 1 wherein the hydroxyl-terminated polydiene is selected from the group consisting of homopolymers of 1,3-butadiene and copolymers of 1,3-butadiene and up to about 25 mole percent of acylonitrile.
Claim 4
Dependent Claim
13 words
A polymerizable composition according to claim 2 wherein the vinyl monomer is styrene.
Claim 5
Dependent Claim
24 words
A polymerizable composition according to claim 3 wherein the hydroxyalkyl acrylate is characterized by an alkyl group of from 1 to 4 carbon atoms.
Claim 6
Dependent Claim
22 words
A polymerizable composition according to claim 4 wherein the isocyanate is selected from the group consisting of toluene diisocyanate and 4,4-methylene-bis (phenylisocyanate).
Claim 7
Dependent Claim
33 words
A polymerizable composition according to claim 5 wherein the hydroxyl-terminated polydiene is an hydroxyl-terminated polybutadiene in which at least about 75 percent of the unsaturation present is of the 1,4- form of unsaturation.
Claim 8
Dependent Claim
13 words
A polymerizable composition according to claim 2 wherein the diisocyanate is toluene diisocyanate.
Claim 9
Dependent Claim
14 words
A polymerizable composition according to claim 7 wherein the hydroxyalkyl acrylate is hydroxypropyl methyacrylate.
Claim 10
Dependent Claim
42 words
A polymerizable composition according to claim 5 wherein the hydroxyl-terminated polydiene is a copolymer of 1,3-butadiene and up to about 25 mole percent of acrylonitrile, in which at least about 75 percent of the unsaturation present is of the 1,4-form of unsaturation.
Claim 11
Dependent Claim
12 words
A polymerizable composition according to claim 9 wherein the diisocyanate is methylene-bis(phenyl-isocyanate).
Claim 12
Dependent Claim
14 words
A polymerizable composition according to claim 10 wherein the hydroxyalkyl acrylate is hydroxypropyl methacrylate.
Claim 13
Dependent Claim
12 words
The composition according to claim 5 when polymerized to an infusible product.
Claim 14
Dependent Claim
15 words
A laminated article comprising the polymerized product of claim 4 admixed with a reinforcing agent.
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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |