US4191833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylenically unsaturated blocked aromatic diisocyanates
Assignee: Goodrich Corp
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Filing: 1978-06-19
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Granted: 1980-03-04
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Expires: 1998-06-19
Abstract
Abstract Ethylenically unsaturated blocked aromatic diisocyanates are prepared which readily polymerize to form homopolymers and interpolymers with copolymerizable vinylidene monomers. Polymers can be prepared via emulsion polymerization, and exhibit excellent stability to hydrolysis when stored in latex form. The polymers cure at temperatures as low as 80° C., and under acidic, neutral, or basic pH conditions. Homopolymers and interpolymers of the defined diisocyanates are useful as adhesives, and interpolymers of the ethylenically unsaturated blocked aromatic diisocyanates with acrylate monomers are particularly useful as binders for nonwoven fibers.
Inventors
- 👤 Harold A. Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:56
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/12; C07D249/00; C07D249/16; C07D249/18; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/36; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31652; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
A compound of the formula ##STR35## wherein R is hydrogen or a methyl or ethyl group; A is a carbonyloxyalkylene group having 2to about 8 carbon atoms or an aralkylene group having 7 to about 12 carbon atoms; B is a bivalent aromatic group selected from the group consisting of arylene, naphthalene, and a group having the formula ##STR36## where R is defined as above; Y is O, S, or (CH 2 ) n ; n=0 to 3; and X is the group remaining after a hydrogen atom is removed from the nitrogen atom of pyrazole.
Claim 2
Dependent Claim
96 words
A compound of the formula ##STR35## wherein R is hydrogen or a methyl or ethyl group; A is a carbonyloxyalkylene group having 2to about 8 carbon atoms or an aralkylene group having 7 to about 12 carbon atoms; B is a bivalent aromatic group selected from the group consisting of arylene, naphthalene, and a group having the formula ##STR36## where R is defined as above; Y is O, S, or (CH 2 ) n ; n=0 to 3; and X is the group remaining after a hydrogen atom is removed from the nitrogen atom of pyrazole.
Claim 3
Dependent Claim
32 words
A compound of claim 1 wherein R is hydrogen or methyl group; B is phenylene, tolylene, naphthalene, or a group where Y is --CH 2 ) n , and n=0 to 1.
Claim 4
Dependent Claim
9 words
A compound of claim 1 having the formula: ##STR37##
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) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |