US2857358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyester resin composition containing as a catalytic promoter alkyl amino styrenes
Assignee: Wyeth Holdings LLC
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Filing: 1954-03-24
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Granted: 1958-10-21
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Expires: 1974-03-24
Abstract
No abstract record available.
Inventors
- 👤 Walter M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:29
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A RESINOUS COMPOSITION COMPRISING THE POLYMERIZABLE MIXTURE OF (1) AN ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID-POLYHYDRIC ALCOHOL POLYESTER RESIN, (2) A COMPOUND CONTAINING A POLYMERIZABLE CH2=C<GROUP AND SELECTED FROM THE GROUP CONSISTING OF STYRENE, SIDECHAIN ALKYL STYRENES, SIDE-CHAIN SUBSTITUTED HALO STYRENES, RING-SUBSTITUTED ALKYL STYRENES, RING-SUBSTITUTED HALO STYRENES, ALLYL COMPOUNDS AND METHALLYL COMPOUNDS AND HAVING A BOILING POINT OF AT LEAST 60*C., AN ORGANIC PEROXIDE POLYMERIZATION CATALYST FOR (1) AND (2), AND (3) FROM ABOUT 0.005% TO 0.2% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE RESINOUS COMPOSITION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) A COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
102 words
A RESINOUS COMPOSITION COMPRISING THE POLYMERIZABLE MIXTURE OF (1) AN ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID-POLYHYDRIC ALCOHOL POLYESTER RESIN, (2) A COMPOUND CONTAINING A POLYMERIZABLE CH2=C<GROUP AND SELECTED FROM THE GROUP CONSISTING OF STYRENE, SIDECHAIN ALKYL STYRENES, SIDE-CHAIN SUBSTITUTED HALO STYRENES, RING-SUBSTITUTED ALKYL STYRENES, RING-SUBSTITUTED HALO STYRENES, ALLYL COMPOUNDS AND METHALLYL COMPOUNDS AND HAVING A BOILING POINT OF AT LEAST 60*C., AN ORGANIC PEROXIDE POLYMERIZATION CATALYST FOR (1) AND (2), AND (3) FROM ABOUT 0.005% TO 0.2% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE RESINOUS COMPOSITION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) A COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2480928A
Cited
US2600457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |