Patent US1570591A successfully refreshed from Google Patents.
Patent US2926153A successfully refreshed from Google Patents.
US2926153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of interpolymers of blown oils and vinyl chloride-vinyl acetate mixtures
Assignee: PPG Industries Inc
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Filing: 1957-06-27
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Granted: 1960-02-23
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Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:56
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A METHOD OF FORMING A HOMOGENEOUS XYLENE SOLUBLE INTERPOLYMER PRODUCT SUITABLE FOR USE AS A COATING MEDIUM, WHICH COMPRISES HEATING IN THE SUBSTANTIAL ABSENCE OF DILUENTS AND UNDER PRESSURE ATR LEAST EQUAL TO THAT AUTOGENOUSLY GENERATED BY THE REACTION AT A TEMPERATURE IN A RANGE OF ABOUT 50*C. TO ABOUT 100*C., AND IN THE SUBSTANTIAL ABSENCE OF ADDED DILUENTS FOR A PERIOD OF ABOUT 1 TO ABOUT 30 HOURS, AN INTERPOLYMERIZABLE MIXTURE CONSISTING ESSENTIALLY OF (A) ABOUT 10 PERCENT TO ABOUT 30 PERCENT BY WEIGHT OF BLOWN, UNSATURARED GLYCERIDE OIL OF A PEROXIDE VALUE OF ABOUT 25 TO ABOUT 700, AND BEING SELECTED FROM THE CLASS CONSISTING OF BLOWN LINSEED OIL AND BLOWN SOYA OIL, (B) ABOUT 70 PERCENT TO ABOUT 90 PERCENT BY WEIGHT OF A MONOMER SYSTEM CONSISTING ESSENTIALLY OF VINYL CHLORIDE AND VINYL ACETATE, THE VINYL CHLORIDE BEING PRESENT IN AN AMOUNT OF ABOUT 70 PERCENT TO ABOUT 90 PERCENT BY WEIGHT OF THE TOTAL MONOMER SYSTEM, THE REST OF THE MONOMER SYSTEM BEING VINYL ACETATE, AND (C) AN ORGANIC PEROXIDE WHICH IS A CATALYST OF INTERPOLYMERIZATION, HEATING BEING CONTINUED UNTIL AT LEAST 30 PERCENT BY WEIGHT OF THE TOTAL MONOMERS HAVE COMBINED.
Claim 2
Independent Claim
196 words
A METHOD OF FORMING A HOMOGENEOUS XYLENE SOLUBLE INTERPOLYMER PRODUCT SUITABLE FOR USE AS A COATING MEDIUM, WHICH COMPRISES HEATING IN THE SUBSTANTIAL ABSENCE OF DILUENTS AND UNDER PRESSURE ATR LEAST EQUAL TO THAT AUTOGENOUSLY GENERATED BY THE REACTION AT A TEMPERATURE IN A RANGE OF ABOUT 50*C. TO ABOUT 100*C., AND IN THE SUBSTANTIAL ABSENCE OF ADDED DILUENTS FOR A PERIOD OF ABOUT 1 TO ABOUT 30 HOURS, AN INTERPOLYMERIZABLE MIXTURE CONSISTING ESSENTIALLY OF (A) ABOUT 10 PERCENT TO ABOUT 30 PERCENT BY WEIGHT OF BLOWN, UNSATURARED GLYCERIDE OIL OF A PEROXIDE VALUE OF ABOUT 25 TO ABOUT 700, AND BEING SELECTED FROM THE CLASS CONSISTING OF BLOWN LINSEED OIL AND BLOWN SOYA OIL, (B) ABOUT 70 PERCENT TO ABOUT 90 PERCENT BY WEIGHT OF A MONOMER SYSTEM CONSISTING ESSENTIALLY OF VINYL CHLORIDE AND VINYL ACETATE, THE VINYL CHLORIDE BEING PRESENT IN AN AMOUNT OF ABOUT 70 PERCENT TO ABOUT 90 PERCENT BY WEIGHT OF THE TOTAL MONOMER SYSTEM, THE REST OF THE MONOMER SYSTEM BEING VINYL ACETATE, AND (C) AN ORGANIC PEROXIDE WHICH IS A CATALYST OF INTERPOLYMERIZATION, HEATING BEING CONTINUED UNTIL AT LEAST 30 PERCENT BY WEIGHT OF THE TOTAL MONOMERS HAVE COMBINED.
References Cited (Backward Citations)
US1975959A
Cited
GB606889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |