US4493908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable dispersions of polymers in polyfunctional compounds having a plurality of active hydrogens
Assignee: Dow Chemical Co
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Filing: 1984-02-17
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Granted: 1985-01-15
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Expires: 2004-02-17
Abstract
Abstract A stable copolymer dispersion is prepared by addition copolymerization of (1) a monomeric adduct of an active hydrogen compound, e.g., a polyether polyol or polyether monool, and an ethylenically unsaturated chloroglyoxylyl compound such as acryloxyethyl chloroglyoxalate with (2) ethylenically unsaturated monomer(s), e,g., styrene or a mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound such as a polyether polyol. The molar ratio of chloroglyoxylyl moiety to active hydrogen compound is preferably less than about 0.1:1. The resulting dispersion has a controlled particle size and a viscosity such that it is suitably employed in the production of polyurethane foams.
Inventors
- 👤 Thomas E. Fisk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:11
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63; C08G18/635; C08F; C08F283/00; C08L; C08L75/00; C08L75/04; C08L75/08
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
96 words
A stable improved copolymer dispersion which comprises: (A) a polyahl having dispersed therein; (B) an addition copolymerizate of (1) a monomeric adduct of (a) an active ethylenicallyunsaturated haloglyoxylyl monomer and (b) a monoahl or a polyahl with (2) at least one other ethylenically unsaturated monomer; or (C) (1) an addition copolymer of a haloglyoxylyl monomer with at least one other ethylenically unsaturated monomer and (2) a monoahl or polyahl; or (D) a mixture of (B) and (C); or (E) a mixture of (B) and/or (C) and a polymer of at least one other ethylenically unsaturated monomer.
Claim 2
Dependent Claim
96 words
A stable improved copolymer dispersion which comprises: (A) a polyahl having dispersed therein; (B) an addition copolymerizate of (1) a monomeric adduct of (a) an active ethylenicallyunsaturated haloglyoxylyl monomer and (b) a monoahl or a polyahl with (2) at least one other ethylenically unsaturated monomer; or (C) (1) an addition copolymer of a haloglyoxylyl monomer with at least one other ethylenically unsaturated monomer and (2) a monoahl or polyahl; or (D) a mixture of (B) and (C); or (E) a mixture of (B) and/or (C) and a polymer of at least one other ethylenically unsaturated monomer.
Claim 3
Dependent Claim
31 words
A dispersion of claim 1 wherein the mole ratio of polymerized haloglyoxylyl monomer to monoahl or polyahl is at least about 0.001:1 and less than an amount at which gelation occurs.
Claim 4
Dependent Claim
20 words
A dispersion of claim 1 wherein the adduct comprises from about 0.01 to about 50 weight percent of the dispersion.
Claim 5
Dependent Claim
79 words
A dispersion of claim 1 wherein the polyahl is a polyether polyol, the monoahl is a polyether monool, the reactive haloglyoxylyl monomer is methacryloxyethylchloroglyoxalate or acryloxyethylchloroglyoxalate and the other ethylenically unsaturated monomer or a mixture of at least two of such other monomers is a monovinylidene aromatic, an ethylenically unsaturated carboxylic acid, an ethylenically unsaturated nitrile, an alkyl ester of an ethylenically unsaturated carboxylic acid, a vinyl halide, a vinylidene halide or a mixture of two or more thereof.
Claim 6
Dependent Claim
27 words
A dispersion of claim 1 wherein the mole ratio of polymerized haloglyoxylyl monomer to monoahl or polyahl is in the range from about 0.001:1 to about 0.1:1.
Claim 7
Dependent Claim
27 words
A dispersion of claim 1 wherein the mole ratio of polymerized haloglyoxylyl monomer to monoahl or polyahl is in the range from about 0.001:1 to about 0.2:1.
Claim 8
Dependent Claim
21 words
A dispersion of claim 1 wherein the other monomer constitutes from about 1 to about 70 weight percent of the dispersion.
Claim 9
Dependent Claim
27 words
A dispersion of claim 4 wherein the other monomer or mixture of such other monomers constitutes from about 1 to about 70 weight percent of the dispersion.
Claim 10
Dependent Claim
22 words
A dispersion of claim 1 wherein the other monomer consititutes from about a 10 to about 40 weight percent of the dispersion.
Claim 11
Dependent Claim
23 words
A dispersion of claim 4 wherein the mixture of such monomers constitutes from about 10 to about 40 weight percent of the dispersion.
Claim 12
Dependent Claim
128 words
A dispersion of claim 1 which comprises: (A) a polyahl having dispersed therein; (B) an addition copolymerizate of (1) a monomeric adduct of (a) an active ethylenically unsaturated chloroglyoxylyl monomer and (b) a monoahl or a polyahl with (2) at least one other ethylenically unsaturated monomer; or (C) (1) an addition copolymer of a chloroglyoxylyl monomer with at least one other ethylenically unsaturated monomer and (2) a monoahl or polyahl; or (D) a mixture of (B) and (C); or (E) a mixture of (B) and/or (C) and a polymer of at least one other ethylenically unsaturated monomer; provided that in the copolymer dispersion the mole ratio of polymerized chloroglyoxylyl monomer to monoahl or polyahl is at least about 0.001:1 and less than an amount at which gelation occurs.
Claim 13
Dependent Claim
61 words
A method for making the copolymer dispersion of claim 1 which method comprises: (A) reacting an active haloglyoxylyl monomer with a monoahl or polyahl to form a monomeric adduct and (B) copolymerizing the adduct with another ethylenically unsaturated monomer or a mixture of at least two of such other monomers in a polyahl liquid medium which medium is a continuous phase.
Claim 14
Dependent Claim
63 words
A method for making the copolymer dispersion of claim 1 which method comprises: (A) copolymerizing an active haloglyoxylyl monomer with another ethylenically unsaturated monomer or a mixture of at least two of such other monomers and (B) reacting the resulting copolymer with a monoahl or polyahl in excess polyahl to form a polymeric adduct of monoahl or polyahl and copolymer dispersed in polyahl.
Claim 15
Dependent Claim
16 words
A polyurethane composition prepared by reacting the copolymer dispersion of claim 1 with an organic polyisocyanate.
Claim 16
Dependent Claim
12 words
A polyurethane composition of claim 14 in the form of a foam.
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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) | 1988-01-15 | 1988-07-16 | 1989-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-15 | 1992-07-16 | 1993-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-15 | 1996-07-16 | 1997-01-15 | $7700.00 | Window Closed / Lapsed |