US3197526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Premix stabilized polyester molding compositions containing sulfur and a substitutedaryl hydroxide
Assignee: Wyeth Holdings LLC
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Filing: 1961-04-03
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Granted: 1965-07-27
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Expires: 1981-04-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Howald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:38
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/06; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PREMIX STABILIZED MOLDING COMPOSITION COMPRISING: AN UNSATURATED POLYESTER RESIN HAVING CARBON TO CARBON DOUBLE BONDS, A POLYMERIZABLE MONOMERIC SUBSTANCE HAVING A CARBON TO CARBON DOUBLE BOND, AND A STABILIZER COMBINATION OF SULPHUR AND AN ARYLHYDROXIDE STABILIZING SUBSTANCE EFFECTIVE AS A STABILIZER IN THE PRESENCE OF OXYGEN, SAID ARYLHYDROXIDE HAVING AT LEAST ONE HYDROXYL GROUP AND BEING SELECTED FROM THE CLASS OF SUBSTITUTED MONOHYDROXY AND POLY-HYDROXY BENZENES, NAPHTHALENES, PYRENES, ANTHRACENES AND PHENANTHRACENES WHICH HAVE AT LEAST ONE NUCLEAR SUBSTITUENT WHICH CONSISTS AT LEAST IN PART OF A MONOVALENT HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKENYL, ARYL, ALKARYL AND ARALKYL RADICALS, THE STABILIZER COMBINATION CONSTITUTING FROM 0.01 TO 0.6 PERCENT BY WEIGHT OF THE POLYESTER RESIN CONTAINED IN THE COMPOSITION.
Claim 2
Dependent Claim
122 words
A PREMIX STABILIZED MOLDING COMPOSITION COMPRISING: AN UNSATURATED POLYESTER RESIN HAVING CARBON TO CARBON DOUBLE BONDS, A POLYMERIZABLE MONOMERIC SUBSTANCE HAVING A CARBON TO CARBON DOUBLE BOND, AND A STABILIZER COMBINATION OF SULPHUR AND AN ARYLHYDROXIDE STABILIZING SUBSTANCE EFFECTIVE AS A STABILIZER IN THE PRESENCE OF OXYGEN, SAID ARYLHYDROXIDE HAVING AT LEAST ONE HYDROXYL GROUP AND BEING SELECTED FROM THE CLASS OF SUBSTITUTED MONOHYDROXY AND POLY-HYDROXY BENZENES, NAPHTHALENES, PYRENES, ANTHRACENES AND PHENANTHRACENES WHICH HAVE AT LEAST ONE NUCLEAR SUBSTITUENT WHICH CONSISTS AT LEAST IN PART OF A MONOVALENT HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKENYL, ARYL, ALKARYL AND ARALKYL RADICALS, THE STABILIZER COMBINATION CONSTITUTING FROM 0.01 TO 0.6 PERCENT BY WEIGHT OF THE POLYESTER RESIN CONTAINED IN THE COMPOSITION.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |