Patent US4394491A successfully refreshed from Google Patents.
US4394491A
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Addition polymerizable adduct of a polymeric monoahl and an unsaturated isocyanate
Assignee: Dow Chemical Co
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Filing: 1980-10-08
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Granted: 1983-07-19
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Expires: 2000-10-08
Abstract
Abstract An adduct of a monoahl, e.g., a monohydroxyl polyalkylene oxide, and an active ethylenically unsaturated isocyanate, e.g., 2-isocyanatoethyl methacrylate, is usefully employed in the preparation of stable copolymer dispersions of the type used in the production of polyurethane foams and polyurethane elastomers. The copolymer dispersion is prepared by addition copolymerization of (1) the adduct with (2) ethylenically unsaturated monomer(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound.
Inventors
- 👤 Dwight K. Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:17
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/2815; C08G18/283; C08G18/40; C08G18/63; C08G18/635; C08G18/70; C08G18/81; C08G18/8108; Y; Y10; Y10S; Y10S525/00; Y10S525/92
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
An ethylenic addition polymerizable adduct of a monoahl and an active ethylenically unsaturated isocyanate monomer, said monoahl being an organic compound containing only one active hydrogen moiety capable of reacting with the isocyanate moiety of the isocyanate monomer to form the adduct, said adduct being represented by the formula: Y--(R'"A--.sub.m R'"-Z wherein each A is individually --O--, --S-- or ##STR6## wherein R 1 is hydrogen or alkyl; Y is oxyalkyl or oxyaryl; Z is an oxycarbonylaminoalkyl ester of an α,β-ethylenically unsaturated carboxylic acid; each R'" is individually alkylene, arylene hydroxyalkylene, aminoalkylene, alkoxyalkylene, aryloxyalkylene, arylalkylene, hydroxyarylalkylene or haloalkylene; and m is a whole number such that --R'"A-- m R'"-- has a number average molecular weight from about 60 to about 100,000 and being capable of stabilizing a dispersion of a polymer comprising the adduct in a continuous liquid phase.
Claim 2
Dependent Claim
138 words
An ethylenic addition polymerizable adduct of a monoahl and an active ethylenically unsaturated isocyanate monomer, said monoahl being an organic compound containing only one active hydrogen moiety capable of reacting with the isocyanate moiety of the isocyanate monomer to form the adduct, said adduct being represented by the formula: Y--(R'"A--.sub.m R'"-Z wherein each A is individually --O--, --S-- or ##STR6## wherein R 1 is hydrogen or alkyl; Y is oxyalkyl or oxyaryl; Z is an oxycarbonylaminoalkyl ester of an α,β-ethylenically unsaturated carboxylic acid; each R'" is individually alkylene, arylene hydroxyalkylene, aminoalkylene, alkoxyalkylene, aryloxyalkylene, arylalkylene, hydroxyarylalkylene or haloalkylene; and m is a whole number such that --R'"A-- m R'"-- has a number average molecular weight from about 60 to about 100,000 and being capable of stabilizing a dispersion of a polymer comprising the adduct in a continuous liquid phase.
Claim 3
Dependent Claim
13 words
The adduct of claim 1 wherein the continuous liquid phase is a polyahl.
Claim 4
Dependent Claim
28 words
The adduct of claim 1 wherein the isocyanate monomer is an isocyanate alkyl ester of an α,β-ethylenically unsaturated carboxylic acid and the monoahl is a polyalkylene ether monol.
Claim 5
Dependent Claim
60 words
The adduct of claim 3 wherein the isocyanate monomer is 2-isocyanatoethyl methacrylate and the monoahl is monohydric alcohol-initiated polyalkylene glycol having an M n of at least 200, wherein alkylene is ethylene, propylene or a mixture thereof and the polyalkylene ether monol has been prepared using a monohydric initiator selected from methanol, ethanol, butanol, tripropylene glycol methyl ether and phenol.
Claim 6
Dependent Claim
133 words
A stable copolymer dispersion comprising (a) a polyahl having dispersed therein; and (b) an ethylenic addition copolymerizate of (1) the adduct of claim 1 and (2) at least one ethylenically unsaturated monomer other than the isocyanate monomer ("other monomer"); or (c) a mixture of (1) an adduct of (i) a monoahl and (ii) an addition copolymer of the isocyanate monomer with at least one "other monomer" which is non-reactive with the isocyanate monomer and the monoahl and (2) an ethylenic addition polymer of at least one "other monomer"; or (d) a combination of (b) and (c); or (e) a combination of (b) and/or (c) and an ethylenic addition polymer of at least one "other monomer," said monoahl and isocyanate monomer being present in reacted form in an amount sufficient to stabilize the dispersion.
Claim 7
Dependent Claim
32 words
The dispersion of claim 5 wherein the polyahl is a polyol, the monoahl is a polyalkylene ether monol, and the isocyanate monomer is an isocyanatoalkyl ester of an α,β-ethylenically unsaturated carboxylic acid.
Claim 8
Dependent Claim
16 words
The dispersion of claim 6 wherein the "other monomer" is styrene, acrylonitrile, or a mixture thereof.
Claim 9
Dependent Claim
52 words
The dispersion of claim 7 wherein the polyahl is a polyalkylene glycol, the monoahl is a monohydric alcohol-initiated polyalkylene glycol having an M n of at least 200, wherein alkylene is ethylene, propylene or a mixture thereof, the monohydric alcohol is methanol, ethanol and butanol and the isocyanate monomer is 2-isocyanatoethyl methacrylate.
Claim 10
Dependent Claim
59 words
The dispersion of claim 8 which comprises from about 60 to about 90 weight percent of (A) the polyahl, and (B) the copolymerizate comprising from about 0.02 to 5 weight percent of the adduct and from about 10 to about 30 weight percent of other monomers, all of said weight percentages being based on the weight of the dispersion.
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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 |