Patent US3248369A successfully refreshed from Google Patents.
US3248369A
Expired / Lapsed
US
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Tertiary amine acrylates as catalysts for polyester-diisocyanate reactions
Assignee: United Shoe Machinery Corp
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Filing: 1961-06-26
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Granted: 1966-04-26
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Richard A Weidman
- 👤 Tobin Donald
- 👤 Jr James R Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:59
CPC Classifications
C; C14; C14C; C14C11/00; C14C11/003; C14C11/006; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/16; C08G18/18; C08G18/1866; C08G18/28; C08G18/40; C08G18/42; C08G18/4236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A COATING COMPOSITION ADAPTED TO PROVIDE ON CURING A CROSS-LINKED RESINOUS FILM, THE SAID COMPOSITION CONSISTING ESSENTIALLY OF VOLATIEL NON-REACTIVE ORGANIC SOLVENT SOLUTION OF (A) A PREPOLYMER OBTAINED FROM HAVING REACTED A POLYESTER HAVING TERMINAL HYDROXYL GROUPS WITH AN ORGANIC DIISOCYANATE, THE SAID DIISOCYANATE IN EXCESS OF THAT AMOUNT REQUIRED TO PROVIDE AN -NCO GROUP FOR REACTION WITH EACH OF SAID HYDROXYL GROUPS, AND (B) 5% TO 30% MOLS EQUIVALENT BASED ON THE NUMBER OF UNREACTED -NCO GROUPS IN SAID PREPOLYMER OF A TERTIARY AMINE ACRYLATE CATALYST WHICH CAN BE REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
94 words
A COATING COMPOSITION ADAPTED TO PROVIDE ON CURING A CROSS-LINKED RESINOUS FILM, THE SAID COMPOSITION CONSISTING ESSENTIALLY OF VOLATIEL NON-REACTIVE ORGANIC SOLVENT SOLUTION OF (A) A PREPOLYMER OBTAINED FROM HAVING REACTED A POLYESTER HAVING TERMINAL HYDROXYL GROUPS WITH AN ORGANIC DIISOCYANATE, THE SAID DIISOCYANATE IN EXCESS OF THAT AMOUNT REQUIRED TO PROVIDE AN -NCO GROUP FOR REACTION WITH EACH OF SAID HYDROXYL GROUPS, AND (B) 5% TO 30% MOLS EQUIVALENT BASED ON THE NUMBER OF UNREACTED -NCO GROUPS IN SAID PREPOLYMER OF A TERTIARY AMINE ACRYLATE CATALYST WHICH CAN BE REPRESENTED BY THE FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |