US4286074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine-terminated graft copolymer dispersions and polyurethanes prepared therefrom
Assignee: BASF Corp
•
Filing: 1980-04-04
•
Granted: 1981-08-25
•
Expires: 2000-04-04
Abstract
Abstract Stable graft polymer dispersions are prepared employing in situ free radical polymerization of ethylenically unsaturated monomer or monomers in an amine-terminated polyoxyalkylene polyether polymer. These dispersions are useful in the preparation of polyurethane foams which have improved tensile strength, elongation, load deflection and tear strength properties.
Inventors
- 👤 John E. Davis
- 👤 Moses Cenker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:10
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63; C08G18/632; C08F; C08F283/00; C08F283/06
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
58 words
A graft polymer dispersion prepared by the in situ polymerization in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
Claim 2
Dependent Claim
58 words
A graft polymer dispersion prepared by the in situ polymerization in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
Claim 3
Dependent Claim
21 words
The graft polymer dispersion of claim 1 wherein the polymerization is conducted at a temperature between 25° C. and 150° C.
Claim 4
Dependent Claim
21 words
The graft polymer dispersion of claim 1 wherein the amine-terminated polyoxyalkylene polyether polymer has an equivalent weight of 125 to 2500.
Claim 5
Dependent Claim
29 words
The graft polymer dispersion of claim 1 wherein the ethylenically unsaturated monomer is selected from the group consisting of styrene, acrylonitrile, vinylidene chloride, methyl methacrylate, acrylamide and mixtures thereof.
Claim 6
Dependent Claim
19 words
The graft polymer dispersion of claim 1 wherein the ethylenically unsaturated monomer is a mixture of styrene and acrylonitrile.
Claim 7
Dependent Claim
14 words
The graft polymer dispersion of claim 1 wherein the ethylenically unsaturated monomer is acrylonitrile.
Claim 8
Dependent Claim
14 words
The graft polymer dispersion of claim 1 wherein the ethylenically unsaturated monomer is styrene.
Claim 9
Dependent Claim
60 words
A process for the preparation of a graft polymer dispersion comprising polymerizing in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
Claim 10
Dependent Claim
60 words
A process for the preparation of a graft polymer dispersion comprising polymerizing in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
Claim 11
Dependent Claim
19 words
The process of claim 8 wherein the polymerization is conducted at a temperature between 25° C. and 150° C.
Claim 12
Dependent Claim
19 words
The process of claim 8 wherein the amine-terminated polyoxyalkylene polyether polymer has an equivalent weight of 125 to 2500.
Claim 13
Dependent Claim
27 words
The process of claim 8 wherein the ethylenically unsaturated monomer is selected from the group consisting of styrene, acrylonitrile, vinylidene chloride, methyl methacrylate, acrylamide and mixtures thereof.
Claim 14
Dependent Claim
17 words
The process of claim 8 wherein the ethylenically unsaturated monomer is a mixture of styrene and acrylonitrile.
Claim 15
Dependent Claim
12 words
The process of claim 8 wherein the ethylenically unsaturated monomer is acrylonitrile.
Claim 16
Dependent Claim
12 words
The process of claim 8 wherein the ethylenically unsaturated monomer is styrene.
Claim 17
Dependent Claim
66 words
A polyurethane prepared by the reaction of an organic polyisocyanate with a graft polymer dispersion prepared by polymerizing in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
Claim 18
Dependent Claim
66 words
A polyurethane prepared by the reaction of an organic polyisocyanate with a graft polymer dispersion prepared by polymerizing in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
Claim 19
Dependent Claim
19 words
The polyurethane of claim 15 wherein the polymerization is conducted at a temperature between 25° C. and 150° C.
Claim 20
Dependent Claim
19 words
The polyurethane of claim 15 wherein the amine-terminated polyoxyalkylene polyether polymer has an equivalent weight of 125 to 2500.
Claim 21
Dependent Claim
27 words
The polyurethane of claim 15 wherein the ethylenically unsaturated monomer is selected from the group consisting of styrene, acrylonitrile, vinylidene chloride, methyl methacrylate, acrylamide and mixtures thereof.
Claim 22
Dependent Claim
17 words
The polyurethane of claim 15 wherein the ethylenically unsaturated monomer is a mixture of styrene and acrylonitrile.
Claim 23
Dependent Claim
12 words
The polyurethane of claim 15 wherein the ethylenically unsaturated monomer is acrylonitrile.
Claim 24
Dependent Claim
12 words
The polyurethane of claim 15 wherein the ethylenically unsaturated monomer is styrene.
Claim 25
Dependent Claim
13 words
The polyurethane of claim 15 prepared in the presence of a blowing agent.
References Cited (Backward Citations)
US3275606A
Cited
USRE28715E
Cited
US3652659A
Cited
US3652639A
Cited
USRE29014E
Cited
US3875258A
Cited
US3950317A
Cited
US4014846A
Cited
US4119582A
Cited
US4122056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |