US4140667A
Expired / Lapsed
US
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Graft copolymers from vinyl monomers and unsaturated polyols containing alkenyl aryl constituents and polyurethanes prepared therefrom
Assignee: Olin Corp
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Filing: 1977-03-31
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Granted: 1979-02-20
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Expires: 1997-03-31
Abstract
Abstract Graft copolymers of vinyl monomers and unsaturated polyols are described. These copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers, in a polyol comprising an alkenyl aryl polyol. The alkenyl aryl constituents render the polyols compatible for graft copolymerization with the vinyl monomers. The graft copolymers are useful in polyurethane formulations.
Inventors
- 👤 Frank J. Preston
- 👤 Kiran B. Chandalia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:12
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/022; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63; C08G18/635
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
143 words
In a process for the preparation of graft copolymer polyols which comprises polymerizing an ethylenically unsaturated monomer or a mixture of such monomers in a polyol in the presence of a free radical catalyst, the improvement characterized by polymerizing the unsaturated monomer in a polyol comprising an alkenyl aryl polyol of the formula: ##STR9## wherein: R 4 represents straight or branched chain alkenyl of 2 to 10 carbons; R 2 represents lower alkylene of 1 to 4 carbons, or ##STR10## where u is an integer from 0 to 3; p is an integer from 2-5; and --O--R 3 --(OH) p ) represents a residue of a polyether or polyester polyol, R 3 (OH) p+1 , wherein R 3 represents a polyether or polyester chain, said polyol having an equivalent weight ranging from about 250 to 5000, after removal of one hydroxy hydrogen therefrom.
Claim 2
Dependent Claim
143 words
In a process for the preparation of graft copolymer polyols which comprises polymerizing an ethylenically unsaturated monomer or a mixture of such monomers in a polyol in the presence of a free radical catalyst, the improvement characterized by polymerizing the unsaturated monomer in a polyol comprising an alkenyl aryl polyol of the formula: ##STR9## wherein: R 4 represents straight or branched chain alkenyl of 2 to 10 carbons; R 2 represents lower alkylene of 1 to 4 carbons, or ##STR10## where u is an integer from 0 to 3; p is an integer from 2-5; and --O--R 3 --(OH) p ) represents a residue of a polyether or polyester polyol, R 3 (OH) p+1 , wherein R 3 represents a polyether or polyester chain, said polyol having an equivalent weight ranging from about 250 to 5000, after removal of one hydroxy hydrogen therefrom.
Claim 3
Dependent Claim
28 words
The process of claim 1 wherein the monomer is polymerized in a polyol mixture comprising an alkenyl aryl polyol and an additional polyol, R 3 (OH) p+1 .
Claim 4
Dependent Claim
30 words
The process of claim 2 wherein the monomer is selected from the group consisting of styrene, acrylonitrile, vinyl chloride, methyl methacrylate, hydroxy ethyl acrylate, butadiene, isoprene, chloroprene, and mixtures thereof.
Claim 5
Dependent Claim
16 words
The process of claim 2 wherein the monomer is selected from styrene, acrylonitrile, and mixtures thereof.
Claim 6
Dependent Claim
22 words
The process of claim 2 wherein the monomer ranges in amount from about 1 to 30 percent based on total polyol weight.
Claim 7
Dependent Claim
18 words
The process of claim 2 wherein --O--R 3 --(OH) p ) represents a residue of a polyether triol.
Claim 8
Dependent Claim
19 words
The process of claim 6 wherein the polyether triol has an average equivalent weight of about 1000 to 1500.
Claim 9
Dependent Claim
24 words
The process of claim 2 wherein the R 4 constituent of the alkenyl aryl polyol is alkenyl containing one carbon to carbon double bond.
Claim 10
Dependent Claim
20 words
The process of claim 8 wherein R 4 represents --CR 1 ═CH 2 where R 1 is hydrogen or methyl.
Claim 11
Dependent Claim
10 words
The process of claim 9 wherein R 1 is hydrogen.
Claim 12
Dependent Claim
12 words
The process of claim 9 wherein R 2 represents --CH 2 --.
Claim 13
Dependent Claim
18 words
The process of claim 11 wherein --O--R 3 --(OH) p ) represents a residue of a polyether polyol.
Claim 14
Dependent Claim
13 words
The process of claim 12 wherein the polyether polyol is a polyether triol.
Claim 15
Dependent Claim
19 words
The process of claim 13 wherein the polyether triol has an average equivalent weight of about 700 to 3000.
Claim 16
Dependent Claim
19 words
The process of claim 14 wherein the polyether triol has an average equivalent weight of about 1000 to 1500.
Claim 17
Dependent Claim
31 words
The process of claim 13 wherein the polyether polyol is the product of reacting a polyhydric initiator with an alkylene oxide or mixture of alkylene oxides using random or step-wise addition.
Claim 18
Dependent Claim
38 words
The process of claim 15 wherein the polyether triol is the product of reacting a glycerin initiator with alkylene oxide selected from the group consisting of propylene oxide, ethylene oxide or mixtures thereof, using random or step-wise addition.
Claim 19
Dependent Claim
30 words
The process of claim 13 wherein the monomer is selected from the group consisting of styrene, acrylonitrile, vinyl chloride, methyl methacrylate, hydroxy ethyl acrylate, butadiene, isoprene, chloroprene, and mixtures thereof.
Claim 20
Dependent Claim
20 words
The process of claim 18 wherein the monomer is selected from the group consisting of styrene, acrylonitrile, and mixtures thereof.
Claim 21
Dependent Claim
22 words
The process of claim 19 wherein the monomer ranges in amount from about 1 to 30 percent based on total polyol weight.
Claim 22
Dependent Claim
11 words
A graft copolymer prepared according to the process of claim 1.
Claim 23
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 2.
Claim 24
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 6.
Claim 25
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 11.
Claim 26
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 13.
Claim 27
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 17.
References Cited (Backward Citations)
US3100804A
Cited
US3041319A
Cited
US3523093A
Cited
US3190925A
Cited
USRE29118E
Cited
US3953393A
Cited
US3931092A
Cited
US4014846A
Cited
US3931450A
Cited
US3966521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |