US3265764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mar-resistant unsaturated polyester resins
Assignee: Wyeth Holdings LLC
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Filing: 1964-09-21
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Granted: 1966-08-09
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Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Deichert William George
- 👤 Christensen Irene
- 👤 Ramsey Wallace Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:33
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/06; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F222/00; C08F222/10; C08F222/1006; C08F222/102; C08F283/00; C08F283/01; C08F299/00; C08F299/02; C08F299/04; C08F299/0478; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A HARD, MAR-RESISTNAT, CROSS-LINKED UNSATURATED, POLYESTER RESIN COMPOSITION COMPRISING THE CURED REACTION PRODUCT OF (1) THE ESTERFICATION REACTION PRODUCT OF REACTANT CONSISTING ESSENTIALLY OF FUMARIC ACID, THRITHYLENE GLYCOL AND 2-ETHYL-1,3-HEXANEDIOL, WHEREIN SAID PRODUCT HAS AN ACID NUMBER BELOW ABOUT 30, (2) ETHYLENE GLYCOL DIMETHACRYLATE, WHEREIN SAID HEXANEDOIL IS PRESENT IN (1) IN AN AMOUNT VARYING BETWEEN 5 AND 50 MOL PERCENT BASED ON THE TOTAL MOLS OF THE DIHYDRIC ALCOHOLS IN THE ESTERFICATION REACTION PRODUCT, WHEREIN (2) IS PRESENT IN AN AMOUNT VARYING BETWEEN ABOUT 10% AND 40% BY WEIGHT BASED ON THE TOTAL WEIGHT OF (1) AND (2), AND (3) STYRENE IN AN AMOUNT VARYING BETWEEN ABOUT 1% AND 5% BY WEIGHT BASED ON THE TOTAL WEIGHT OF (1) (2) AND (3).
Claim 2
Dependent Claim
136 words
A SHEET OF POLYMERTHYL METHACRYLATE HAVING BONDED TO THE SURFACE THEREOF A HARD, MAR-RESISTANT, CROSS-LINKED UNSATURATED POLYESTER RESIN COMPOSITION COMPRISING THE CURED REACTION PRODUCT OF (1) THE ESTERFICATION REACTION PRODUCT OF REACTANTS CONSISTING ESSENTIALLY OF FUMARIC ACID, TRITHYLENE GLYCOL AND 2-ETHYL-1,3-HEXANEDIOL, WHEREIN SAID PRODUCT HAS AN ACID NUMBER BELOW ABOUT 30, (2) ETHYLENE GLYCOL DIMETHACRYLATE, WHEREIN SAID HEXANEDOIL IS PREENT IN (1) IN AN AMOUNT VARYING BETWEEN 5 AND 50 MOL PERCENT BASED ON THE TOTAL MOLS OF THE DIHYDRIC ALCOHOLS IN THE ESTERFICATION REACTION PRODUCT, WHEREIN (2) IS PRESENT IN AN AMOUNT VARYING BETWEEN ABOUT 10% AND 40% BY WEIGHT BASED ON THE TOTAL WEIGHT OF (1) AND (2), AND (3) A POLYMERIZABLE STYRENE IN AN AMOUNT VARYING BETWEEN ABOUT 1% AND 5% BY WEIGHT BASED ON THE TOTAL WEIGHT OF (1), (2) AND (3).
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |