US2861050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing interpolymers of a vinyl ester, a conjugated diene hydrocarbon, and an ethylenically unsaturated monomer, and product thereof
Assignee: PPG Industries Inc
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Filing: 1953-09-15
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Granted: 1958-11-18
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Expires: 1973-09-15
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:08
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A METHOD OF FORMING A HEAT CURABLE INTERPOLYMER WHICH IS SOLUBLE IN XYLENE AND IS NON-RUBBERY, SAID METHOD COMPRISING HEATING A MIXTURE OF (A) ABOUT 20 PERCENT TO 50 PERCENT BY WEIGHT OF A VINYL ESTER OF A FATTY ACID CONTAINING AT LEAST 8 CARBON ATOMS, (B) ABOUT 40 PERCENT TO 10 PERCENT BY WEIGHT OF A CONJUGATE DIENE. (C) ABOUT 20 PERCENT TO 40 PERCENT BY WEIGHT OF AT LEAST ONE COMPOUND HAVING AT LEAST ONE TERMINAL ETHYLENIC GROUP WHICH IS NOT IN CONJUGATE RELATIONSHIP TO ANY ALIPHATIC EHTYLENIC GROUP AND (D) ABOUT 0.1 TO 10 PERCENT BY WEIGHT OF AN ORGANIC PEROXIDE WHICH IS A CATALYST OF INTERPOLYMERIZATION OF THE MIXTURE WHEREBY TO EFFECT SOLUTION OF COMPONENTS (A), (B) AND (C) IN EACH OTHER AND CONTINUING TO HEAT THE SOLUTION UNTIL SAID INTERPOLYMER IS FORMED.
Claim 2
Dependent Claim
138 words
IN A METHOD OF FORMING A HEAT CURABLE INTERPOLYMER WHICH IS SOLUBLE IN XYLENE AND IS NON-RUBBERY, SAID METHOD COMPRISING HEATING A MIXTURE OF (A) ABOUT 20 PERCENT TO 50 PERCENT BY WEIGHT OF A VINYL ESTER OF A FATTY ACID CONTAINING AT LEAST 8 CARBON ATOMS, (B) ABOUT 40 PERCENT TO 10 PERCENT BY WEIGHT OF A CONJUGATE DIENE. (C) ABOUT 20 PERCENT TO 40 PERCENT BY WEIGHT OF AT LEAST ONE COMPOUND HAVING AT LEAST ONE TERMINAL ETHYLENIC GROUP WHICH IS NOT IN CONJUGATE RELATIONSHIP TO ANY ALIPHATIC EHTYLENIC GROUP AND (D) ABOUT 0.1 TO 10 PERCENT BY WEIGHT OF AN ORGANIC PEROXIDE WHICH IS A CATALYST OF INTERPOLYMERIZATION OF THE MIXTURE WHEREBY TO EFFECT SOLUTION OF COMPONENTS (A), (B) AND (C) IN EACH OTHER AND CONTINUING TO HEAT THE SOLUTION UNTIL SAID INTERPOLYMER IS FORMED.
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |