US3331891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid coating composition comprising diallyl phthalate prepolymer, unsaturated polyester and monomer
Assignee: FMC Corp
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Filing: 1965-10-23
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Granted: 1967-07-18
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 James L Thomas
- 👤 Harry H Beacham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:27
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06; C08F; C08F263/00; C08F263/06; C08F263/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A POWDERED COMPOSITION COMPRISING A DIALLYL PHTHALATE PREPOLYMER WHOSE NUMBER AVERAGE MOLECULAR WEIGHT IS LESS THAN ABOUT 25,000 AND ALSO CONTAINING FOR EACH 100 PARTS BY WEIGHT OF DIALLYL PHTHALATE PREPOLYMER 5 TO 50 PARTS BY WEIGHT OF A SOLID POLYESTER WHICH HAS A MELTING POINT ABOVE ABOUT 35*C. BUT BELOW 120*C., AND WHICH CONTAINS AS ITS ACID CONSTITUENT FROM 25 TO 75 MOL PERCENT OF UNSATURATED POLYBASIC ACID, A SMALL AMOUNT OF DIALLYL PHTHALATE MONOMER, NOT IN EXCESS OF 10 PARTS BY WEIGHT PER HUNDRED PARTS OF PREPOLYMER, AND A PEROXIDE POLYMERIZATION CATALYST IN SUFFICIENT QUANTITY TO INSURE THE COPOLYMERIZATION OF THE PREPOLYMER AND THE POLYESTER ON HEATING.
Claim 2
Dependent Claim
109 words
A POWDERED COMPOSITION COMPRISING A DIALLYL PHTHALATE PREPOLYMER WHOSE NUMBER AVERAGE MOLECULAR WEIGHT IS LESS THAN ABOUT 25,000 AND ALSO CONTAINING FOR EACH 100 PARTS BY WEIGHT OF DIALLYL PHTHALATE PREPOLYMER 5 TO 50 PARTS BY WEIGHT OF A SOLID POLYESTER WHICH HAS A MELTING POINT ABOVE ABOUT 35*C. BUT BELOW 120*C., AND WHICH CONTAINS AS ITS ACID CONSTITUENT FROM 25 TO 75 MOL PERCENT OF UNSATURATED POLYBASIC ACID, A SMALL AMOUNT OF DIALLYL PHTHALATE MONOMER, NOT IN EXCESS OF 10 PARTS BY WEIGHT PER HUNDRED PARTS OF PREPOLYMER, AND A PEROXIDE POLYMERIZATION CATALYST IN SUFFICIENT QUANTITY TO INSURE THE COPOLYMERIZATION OF THE PREPOLYMER AND THE POLYESTER ON HEATING.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |