US3247288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxy copolymers prepared in 1, 2-epoxy compounds
Assignee: Celanese Coatings Co
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Filing: 1962-11-09
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Granted: 1966-04-19
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Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 John E Masters
- 👤 Darrell D Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:03
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/62; C08F220/00; C08F220/02; C08F220/04; C08F283/00; C08F283/10; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515; C08L; C08L57/00; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A PROCESS FOR THE PREPARATION OF A CARBOXY COPOLYMER SOLUTION DEVOID OF SOLVENT BOILING BELOW 150*C. AND CAPABLE OF BEING READILY CROSS-LINKED WHICH COMPRISES POLYMERIZING, AT A TEMPERATURE OF FROM 60*C. TO ABOUT 150*C., A SOLUTION COMPRISING (A) AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID CONTAINING NOT MOE THAN FOUR CARBON ATOMS, (B) A DIFFERENT MONOETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE WITH SAID (A), AND (C) AN EPOXIDE COMPOUND HAVING AT LEAST ONE 1,2EPOXIDE GROUP, SAID (C) (1) BEING A SOLVENT FRO AND NON-REACTIVE WITH SAID (A), SAID (B) AND SAID CARBOXY COPOLYMER UNDER THE POLYMERIZATION CONDITIONS USED, (2) BEING PRESENT IN AN AMOUNT SUFFICIENT TO DISSOLVE SAID (A), SAID (B) AND SAID CARBOXY COPOLYMER, (3) HAVING A MELTING POINT BELOW THE POLYMERIZATION TEMPERATURE, (4) HAVING A BOILING POINT OF AT LEAST 150*C., (5) HAVING A VISCOSITY NOT EXCEEDING 130 CENTIPOISES AT THE POLYMERIZATION TEMPERATURE, AND (6) BEING CAPABLE OF ENTERING THE CURING REACTION WHEN SAID CARBOXY COPOLYMER IS CURED.
Claim 2
Dependent Claim
156 words
A PROCESS FOR THE PREPARATION OF A CARBOXY COPOLYMER SOLUTION DEVOID OF SOLVENT BOILING BELOW 150*C. AND CAPABLE OF BEING READILY CROSS-LINKED WHICH COMPRISES POLYMERIZING, AT A TEMPERATURE OF FROM 60*C. TO ABOUT 150*C., A SOLUTION COMPRISING (A) AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID CONTAINING NOT MOE THAN FOUR CARBON ATOMS, (B) A DIFFERENT MONOETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE WITH SAID (A), AND (C) AN EPOXIDE COMPOUND HAVING AT LEAST ONE 1,2EPOXIDE GROUP, SAID (C) (1) BEING A SOLVENT FRO AND NON-REACTIVE WITH SAID (A), SAID (B) AND SAID CARBOXY COPOLYMER UNDER THE POLYMERIZATION CONDITIONS USED, (2) BEING PRESENT IN AN AMOUNT SUFFICIENT TO DISSOLVE SAID (A), SAID (B) AND SAID CARBOXY COPOLYMER, (3) HAVING A MELTING POINT BELOW THE POLYMERIZATION TEMPERATURE, (4) HAVING A BOILING POINT OF AT LEAST 150*C., (5) HAVING A VISCOSITY NOT EXCEEDING 130 CENTIPOISES AT THE POLYMERIZATION TEMPERATURE, AND (6) BEING CAPABLE OF ENTERING THE CURING REACTION WHEN SAID CARBOXY COPOLYMER IS CURED.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |