Patent US2930776A successfully refreshed from Google Patents.
US2930776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising unsaturated polyester and an unsaturated ester
Assignee: Wyeth Holdings LLC
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Filing: 1957-01-02
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Granted: 1960-03-29
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Expires: 1977-01-02
Abstract
No abstract record available.
Inventors
- 👤 Lennart A Lundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:40
CPC Classifications
C; C08; C08L; C08L67/00; C08L69/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A COMPOSITION OF MATTER WHICH COMPRISES AN ADMIXTURE OF FROM ABOUT 20 TO 80 PARTS OF (1) AN UNSATURATED LINEAR POLYESTER OF A POLYHYDRIC ALCOHOL AND AN ALPHA, BETA-ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID HAVING AN ACID NUMBER LESS THAN ABOUT 55, AND CORRESPONDING FROM ABOUT 80 TO 20 PARTS OF (2) A HALOGENATION PRODUCT OBTAINED BY REACTING A TRIESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF CYANURIC AND ISOCYANURIC, WHEREIN THE ALCOHOLIC MOIETY OF SAID ESTER CONSTITUTES RADICALS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALLYL AND METHALLY, AND WHEREIN AT LEAST 2 OF SAID RADICALS ARE ALKENYL, WITH A HALOGEN UNTIL THE AMOUNT OF COMBINED HALOGEN IS FROM ABOUT 0.5 TO 2.25 MOLS PER MOL OF THE ESTER, SAID HALOGENATION PRODUCT CONTAINING RESIDUAL ETHYLENIC UNSATURATION.
Claim 2
Dependent Claim
127 words
A COMPOSITION OF MATTER WHICH COMPRISES AN ADMIXTURE OF FROM ABOUT 20 TO 80 PARTS OF (1) AN UNSATURATED LINEAR POLYESTER OF A POLYHYDRIC ALCOHOL AND AN ALPHA, BETA-ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID HAVING AN ACID NUMBER LESS THAN ABOUT 55, AND CORRESPONDING FROM ABOUT 80 TO 20 PARTS OF (2) A HALOGENATION PRODUCT OBTAINED BY REACTING A TRIESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF CYANURIC AND ISOCYANURIC, WHEREIN THE ALCOHOLIC MOIETY OF SAID ESTER CONSTITUTES RADICALS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALLYL AND METHALLY, AND WHEREIN AT LEAST 2 OF SAID RADICALS ARE ALKENYL, WITH A HALOGEN UNTIL THE AMOUNT OF COMBINED HALOGEN IS FROM ABOUT 0.5 TO 2.25 MOLS PER MOL OF THE ESTER, SAID HALOGENATION PRODUCT CONTAINING RESIDUAL ETHYLENIC UNSATURATION.
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |