US3412074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-hydroxyalkyl acrylate copolymer-alpha, beta-unsaturated dicarboxylic acid partial esters
Assignee: Dow Chemical Co
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Filing: 1964-08-07
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Granted: 1968-11-19
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Kenneth S Derrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:51
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A THERMOSETTALBE RESIN COMPOSITION WHICH COMPRISES THE PRODUCT OF REACTION OF (A) AN A,B-UNSATURATED DICARBOXYLIC ACID HYDROXYL GROUPS; THE MOLAR RATIO OF THE ANHYDRIDE TO THE HYDROXYL GROUP BEING IN THE RANGE OF 0.8:1 TO ABOUT 1.2:1 AND THE COPOLYMER COMPRISING ABOUT 20 TO ABOUT 60 PERCENT BY WEIGHT OF A 2-HYDROXYALKYL ESTER OF ACRYLIC ACID OR METHACRYLIC ACID AND ABOUT 80 TO ABOUT 40 PERCENT BY WEIGHT OF AT LEAST ONE OTHER COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL AROMATIC MONOMERS, VINYL CHLORIDE AND VINYLIDENE CHLORIDE.
Claim 2
Dependent Claim
89 words
A THERMOSETTALBE RESIN COMPOSITION WHICH COMPRISES THE PRODUCT OF REACTION OF (A) AN A,B-UNSATURATED DICARBOXYLIC ACID HYDROXYL GROUPS; THE MOLAR RATIO OF THE ANHYDRIDE TO THE HYDROXYL GROUP BEING IN THE RANGE OF 0.8:1 TO ABOUT 1.2:1 AND THE COPOLYMER COMPRISING ABOUT 20 TO ABOUT 60 PERCENT BY WEIGHT OF A 2-HYDROXYALKYL ESTER OF ACRYLIC ACID OR METHACRYLIC ACID AND ABOUT 80 TO ABOUT 40 PERCENT BY WEIGHT OF AT LEAST ONE OTHER COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL AROMATIC MONOMERS, VINYL CHLORIDE AND VINYLIDENE CHLORIDE.
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |