Patent US4357440A successfully refreshed from Google Patents.
US4357440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet-adhesion aid
Assignee: Union Carbide Corp
•
Filing: 1980-06-10
•
Granted: 1982-11-02
•
Expires: 2000-06-10
Abstract
Abstract A new compound, 2-hydroxy-3-t-butylamino-1-propyl methacrylate, and latex coating compositions containing said compound as a wet-adhesion aid.
Inventors
- 👤 David J. Schreck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:43
CPC Classifications
C; C09; C09D; C09D157/00; C09D157/04; C09D5/00; C09D5/02; C09D5/024
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
31 words
In a latex coating composition, the improvement of having present therein as a wet-adhesion aid from 0.1 to 10 weight percent of 2-hydroxy-3-t-butylamino-1-propyl methacrylate, based on the weight of the latex.
Claim 2
Dependent Claim
31 words
In a latex coating composition, the improvement of having present therein as a wet-adhesion aid from 0.1 to 10 weight percent of 2-hydroxy-3-t-butylamino-1-propyl methacrylate, based on the weight of the latex.
Claim 3
Dependent Claim
26 words
The improved latex coating composition as claimed in claim 1 wherein the 2-hydroxy-3-t-butylamino-1-propyl methacrylate is present at a concentration of from 0.5 to 5 weight percent.
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) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |