US4314067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monomeric compounds having vinyl and imidazolidin-2-one terminal groups
Assignee: Air Products and Chemicals Inc
•
Filing: 1978-03-06
•
Granted: 1982-02-02
•
Expires: 1998-03-06
Abstract
Abstract Polymerizable monomeric compounds corresponding to the general formula ##STR1## wherein R is H or CH 3 , U designates a cyclic or acyclic ureido or thioureido group and L designates a selected linking structure. The linking structure L may contain one or more oxy (ether), amino, amido, or carbonyl groups provided that any carbonyl group (CO) present is not directly attached to U or to an ethylenic carbon atom nor is such ethylenic carbon atom directly attached to a nitrogen atom. Representative examples include compounds corresponding to the formulae: ##STR2##
Inventors
- 👤 Frederick L. Herman
- 👤 Dale D. Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:12
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/432; C; C07; C07D; C07D233/00; C07D233/04; C07D233/28; C07D233/30; C07D233/32; C07D233/36; C07D239/00; C07D239/02; C07D239/06; C07D239/08; C07D239/10; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/10; C09; C09D; C09D131/00; C09D131/02; D06M13/425
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
6 words
A compound having the formula ##STR31##
Claim 2
Dependent Claim
6 words
A compound having the formula ##STR31##
Claim 3
Dependent Claim
6 words
A compound having the formula ##STR32##
Claim 4
Dependent Claim
6 words
A compound having the formula ##STR32##
Claim 5
Dependent Claim
6 words
A compound having the formula ##STR33##
Claim 6
Dependent Claim
6 words
A compound having the formula ##STR33##
References Cited (Backward Citations)
US3196152A
Cited
US2840546A
Cited
US3021338A
Cited
US3014042A
Cited
US3024246A
Cited
US4104220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-01 | 1985-08-03 | 1986-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-01 | 1989-08-03 | 1990-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-01 | 1993-08-03 | 1994-02-02 | $7700.00 | Window Closed / Lapsed |