US2919261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction products of esters of betaketo acids and carbonyl compounds
Assignee: PPG Industries Inc
•
Filing: 1954-05-21
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Granted: 1959-12-29
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Expires: 1974-05-21
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
- 👤 Lowell O Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:51
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218; C08G16/0225; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
AS A NEW RESIN PRODUCT, AN INTERPOLYMER FORMED BY HEATING IN THE PRESENCE OF A PEROXIDE CATALYST OF POLYMERIZATION A MIXTURE OF: (A) A POLYESTER OF AN ALPHABETA ETHYLENIC DICARBOXYLIC ACID AND A GLYCOL (B) STYRENE, AND (C) A CONDENSATEOF FORMALDEHYDE AND AN ESTER OF A BETA-KETO ACID CONTAINING AN ALPHA HYDROGEN ATOM AND AN ALIPHATIC ALCOHOL CONTAINING A STRAIGHT CHAIN OF 3 TO 4 CARBON ATOMS WITH A TERMINAL ETHYLENIC GROUP IN SAID CHAIN
Claim 2
Dependent Claim
75 words
AS A NEW RESIN PRODUCT, AN INTERPOLYMER FORMED BY HEATING IN THE PRESENCE OF A PEROXIDE CATALYST OF POLYMERIZATION A MIXTURE OF: (A) A POLYESTER OF AN ALPHABETA ETHYLENIC DICARBOXYLIC ACID AND A GLYCOL (B) STYRENE, AND (C) A CONDENSATEOF FORMALDEHYDE AND AN ESTER OF A BETA-KETO ACID CONTAINING AN ALPHA HYDROGEN ATOM AND AN ALIPHATIC ALCOHOL CONTAINING A STRAIGHT CHAIN OF 3 TO 4 CARBON ATOMS WITH A TERMINAL ETHYLENIC GROUP IN SAID CHAIN
Claim 3
Dependent Claim
56 words
AS A NEW RESIN, THE ADDITION POLYMERIZATE OBTAINED BY HEATING A MIXTURE CONSISTING ESSENTIALLY OF A PEROXIDE CATALYST AND A MATERIAL OF A CLASS CONSISTING OF THE CONDEENSATE OF FORMALDEHYDE AND AN ESTER OF ACETOACETIC ACID AND AN ALCOHOL OF A CLASS CONSISTING OF ALLYL ALCOHOL AND METHALLYL ALCOHOL AND MIXTURES OF SAID CONDENSATE WITH STYRENE.
Claim 4
Dependent Claim
56 words
AS A NEW RESIN, THE ADDITION POLYMERIZATE OBTAINED BY HEATING A MIXTURE CONSISTING ESSENTIALLY OF A PEROXIDE CATALYST AND A MATERIAL OF A CLASS CONSISTING OF THE CONDEENSATE OF FORMALDEHYDE AND AN ESTER OF ACETOACETIC ACID AND AN ALCOHOL OF A CLASS CONSISTING OF ALLYL ALCOHOL AND METHALLYL ALCOHOL AND MIXTURES OF SAID CONDENSATE WITH STYRENE.
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) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |