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US4153643A
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Graft copolymers from unsaturated monomers and peroxy di-ester polyols and polyurethanes prepared therefrom
Assignee: Olin Corp
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Filing: 1977-10-18
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Granted: 1979-05-08
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Expires: 1997-10-18
Abstract
Abstract Graft copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers, in the presence of a peroxy di-ester polyol. Presence of the peroxy group in the polyol reactant itself serves as a free radical initiator site for the graft copolymerization reaction. The copolymers formed are utilized in the formulation of polyurethane compositions.
Inventors
- 👤 Frank J. Preston
- 👤 Theodore C. Kraus
- 👤 Kiran B. Chandalia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:51
CPC Classifications
C; C08; C08F; C08F283/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
148 words
In a process for the preparation of graft copolymer polyols which comprises polymerizing an ethylenically unsaturated monomer or mixtures of such monomers in a polyol, the improvement characterized by polymerizing the unsaturated monomer in a polyol comprising a peroxy di-ester polyol of the formula: ##STR6## wherein m and r independently represent integers from 1-5, R 2 and R 3 independently represent radicals selected from aryl and alkenyl of 2-5 carbon atoms, and ((HO) m --R 1 --O) and (O--R 4 --(OH) r ) independently represent residues of polyols R 1 (OH) m+1 and R 4 (OH) r+1 , wherein R 1 and R 4 independently represent polyether or polyester chains, having an average equivalent weight ranging from about 250 to 5000, after removal of one hydroxy hydrogen therefrom; said polymerizing occurring at a temperature at or above which the peroxy linkages of the peroxy di-ester polyol are ruptured.
Claim 2
Dependent Claim
148 words
In a process for the preparation of graft copolymer polyols which comprises polymerizing an ethylenically unsaturated monomer or mixtures of such monomers in a polyol, the improvement characterized by polymerizing the unsaturated monomer in a polyol comprising a peroxy di-ester polyol of the formula: ##STR6## wherein m and r independently represent integers from 1-5, R 2 and R 3 independently represent radicals selected from aryl and alkenyl of 2-5 carbon atoms, and ((HO) m --R 1 --O) and (O--R 4 --(OH) r ) independently represent residues of polyols R 1 (OH) m+1 and R 4 (OH) r+1 , wherein R 1 and R 4 independently represent polyether or polyester chains, having an average equivalent weight ranging from about 250 to 5000, after removal of one hydroxy hydrogen therefrom; said polymerizing occurring at a temperature at or above which the peroxy linkages of the peroxy di-ester polyol are ruptured.
Claim 3
Dependent Claim
23 words
The process of claim 1 comprising the polymerizing of unsaturated monomer in a polyol comprising the peroxy di-ester polyol and additional polyol medium.
Claim 4
Dependent Claim
20 words
The process of claim 1 wherein the monomer is selected from the group consisting of styrene, acylonitrile and mixtures thereof.
Claim 5
Dependent Claim
22 words
The process of claim 1 wherein the monomer ranges in amount from about 1 to 30 percent based on total polyol weight.
Claim 6
Dependent Claim
45 words
The process of claim 1 wherein ((HO) m --R 1 --O) and (O--R 4 --(OH) r ) of the peroxy di-ester polyol formula individually represent residues of polyether polyols R 1 (OH) m+1 and R 4 (OH) r+1 after removal of one hydroxy hydrogen therefrom.
Claim 7
Dependent Claim
23 words
The process of claim 5 wherein the polyether polyols are polyether triols having an average equivalent weight ranging from about 700 to 3000.
Claim 8
Dependent Claim
23 words
The process of claim 5 wherein the polyether polyols are polyether triols having an average equivalent weight ranging from about 1000 to 1500.
Claim 9
Dependent Claim
48 words
The process of claim 1 wherein m and r, R 2 and R 3 , and ((HO) m --R 1 --O) and (O--R 4 --(OH) r ) of the peroxy di-ester polyol formula respectively represent the same entities, such that the formula represents a symmetrical peroxy-bis ester polyol.
Claim 10
Dependent Claim
20 words
The process of claim 8 wherein the monomer is selected from the group consisting of styrene, acrylonitrile and mixtures thereof.
Claim 11
Dependent Claim
21 words
The process of claim 9 wherein the monomer ranges in amount from 1 to 30 percent based on total polyol weight.
Claim 12
Dependent Claim
30 words
The process of claim 10 wherein ((HO) m --R 1 --O) and (O--R 4 --(OH) r ) of the peroxy-bis ester polyol formula represent a residue of a polyether polyol.
Claim 13
Dependent Claim
23 words
The process of claim 11 wherein the polyether polyol is a polyether triol having an average equivalent weight between about 700 to 3000.
Claim 14
Dependent Claim
36 words
The process of claim 12 wherein the polymerizing of unsaturated monomer in the peroxy-bis ester polyol is conducted in a medium of an additional polyether triol having an average equivalent weight between about 700 to 3000.
Claim 15
Dependent Claim
23 words
The process of claim 12 wherein the polyether polyol is a polyether triol having an average equivalent weight between about 1000 to 1500.
Claim 16
Dependent Claim
66 words
The process of claim 8 wherein the peroxy-bis ester polyol is characterized by the formula: ##STR7## wherein m represents an integer from 1-5, ((HO) m --R 1 --O) represents a residue of a polyether polyol R 1 (OH) m+1 after removal of one hydroxy hydrogen therefrom, and n represents an integer from 2-4; said polymerizing occurring at a temperature from about 70° C. to 150° C.
Claim 17
Dependent Claim
51 words
The process of claim 14 wherein the peroxy-bis ester polyol is characterized by the formula: ##STR8## wherein m represents the integer 2, and ((HO) m --R 1 --O) represents a residue of a polyether triol having an equivalent weight between about 1000 and 1500 after removal of one hydroxy hydrogen therefrom.
Claim 18
Dependent Claim
11 words
A graft copolymer prepared according to the process of claim 1.
Claim 19
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 1.
Claim 20
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 2.
Claim 21
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 8.
Claim 22
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 15.
Claim 23
Dependent Claim
12 words
A graft copolymer dispersion prepared according to the process of claim 16.
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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |