US3288883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of alkyl alpha-hydroxymethyl acrylates and other unsaturated monomers
Assignee: Beazer East Inc
•
Filing: 1962-05-31
•
Granted: 1966-11-29
•
Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Samuel C Temin
- 👤 Melvin E Baum
- 👤 Edward H Gleason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:34
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A VINYL COPOLYMER CONSISTING ESSENTIALLY OF FROM 1-50 PERCENT A LOWER ALKYL ALPHA-HYDROXYMETHYLACRYLATE PREPARED BY POLYMERIZING SAID LOWER ALKYL ALPHA-HYDROXYMETHYLACRYLATE WITH AT LEAST ONE VINYL COMONOMER OF THE FORMULA:
Claim 2
Dependent Claim
43 words
A METHOD OF CROSSLINKING THE POLYMER OF CLAIM 2 THROUGH THE HYDROXYMETHYL GROUP COMPRISING REACTING SAID POLYMER WITH A POLYFUNCTIONAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIEPOXIDES, DIANHYDRIDES DIISOCYANATES, ALKOXY METHYL MALAMINES, HYDROXYMETHYL MELAMINES, N-ALKOXYMETHYLUREAS, N-HYDROXYMETHYLUREAS, DIACID HALIDES, PHOSPHONIC DIAHALIDES AND DISULFONYLHALIDES.
References Cited (Backward Citations)
US3066165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |