US3028360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing storage life of polyester resin compositions
Assignee: Uniroyal Inc
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Filing: 1960-11-28
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Granted: 1962-04-03
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Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Brooks
- 👤 Irwin A Prager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:57
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/005; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A METHOD OF INCREASING THE STORAGE LIFE OF A COPOLYMERIZABLE MIXTURE CONSISTING ESSENTIALLY OF A LIUID UNSATURATED POLYESTER RESIN, SAID RESIN BEING OBTAINED BY THE ESTERIFICATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALPHA, BETA-ETHYLENIC DICARBOXYLIC ACID AND THE ANHYDRIDE THEREOF WITH A POLYHYDRIC ALCOHOL, AND A REACTIVE MONOMERIC SUBSTANCE HAVING A CH2=C<GROUP, THE IMPROVEMENT OF WHICH CONSISTS IN ADDING THERETO ABOUT 0.001 TO 0.2% BY WEIGHT OF A CHENICAL STABILIZER SELECTED FROM THE GROUP CONSISTING OF PHENOLS, QUINONES, HOMOCYCLIC AROMATIC AMINES, MONO-AMINE SALTS, QUATERNARY AMMONIUM SALTS OF NON-OXIDIZING ACIDS AT LEAST AS STRONG S ACETIC ACID, QUATERNARY PHOSPHONIUM HALIDE SALTS, AND QUATERNARY AROSIUM HALIDE SALTS AND ABOUT 0.25 TO 10 PARTS OF COPPER PER MILLION PARTS OF COPOLYMERIZABLE MIXTURE, SAID COPPER BEING IN THE FORM OF A COPPER SALT WHICH IS SOLUBLE IN THE LIQUID POLYESTER, AND SUBSEQUENTLY STORING SAID MIXTURE AS SUCH AT ORDINARY TEMPERATURES.
Claim 2
Independent Claim
150 words
A METHOD OF INCREASING THE STORAGE LIFE OF A COPOLYMERIZABLE MIXTURE CONSISTING ESSENTIALLY OF A LIUID UNSATURATED POLYESTER RESIN, SAID RESIN BEING OBTAINED BY THE ESTERIFICATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALPHA, BETA-ETHYLENIC DICARBOXYLIC ACID AND THE ANHYDRIDE THEREOF WITH A POLYHYDRIC ALCOHOL, AND A REACTIVE MONOMERIC SUBSTANCE HAVING A CH2=C<GROUP, THE IMPROVEMENT OF WHICH CONSISTS IN ADDING THERETO ABOUT 0.001 TO 0.2% BY WEIGHT OF A CHENICAL STABILIZER SELECTED FROM THE GROUP CONSISTING OF PHENOLS, QUINONES, HOMOCYCLIC AROMATIC AMINES, MONO-AMINE SALTS, QUATERNARY AMMONIUM SALTS OF NON-OXIDIZING ACIDS AT LEAST AS STRONG S ACETIC ACID, QUATERNARY PHOSPHONIUM HALIDE SALTS, AND QUATERNARY AROSIUM HALIDE SALTS AND ABOUT 0.25 TO 10 PARTS OF COPPER PER MILLION PARTS OF COPOLYMERIZABLE MIXTURE, SAID COPPER BEING IN THE FORM OF A COPPER SALT WHICH IS SOLUBLE IN THE LIQUID POLYESTER, AND SUBSEQUENTLY STORING SAID MIXTURE AS SUCH AT ORDINARY TEMPERATURES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |