Patent US2855379A successfully refreshed from Google Patents.
US2855379A
Expired / Lapsed
US
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Copolymerizates of vinyl monomers and unsaturated polyesters derived from phenyloxy glycols
Assignee: Hoechst AG Werk Kalle Albert
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Filing: 1956-01-31
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Granted: 1958-10-07
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Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Heinen Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:43
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS FOR THE PRODUCTION OF COPOLYMERS FROM (A) UNSATURATED POLYESTERS OF THE TYPE DERIVED FROM ALKYLENE GLYCOL UNSATURATED ALIPHATIC DICARBOXYLIC ACID AND FROM (B) POLYMERIZABLE MONOMERIC VINYL COMPOUNDS, WHICH COMPRISES FORMING A RESINOUS ESTERIFICATION PRODUCT OF A 1,2-DICARBOXY ETHENE WITH AN ETHER OF THE FORMULA RO-X, WHEREIN RO IS THE ETHER FORMING RADICAL OF A MONOVALENT PHENOL AND X IS AN ETHER FORMING RADICAL OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND GLYCIDOL, AND COPOLYMERIZING SAID RESINOUS PRODUCT WITH A POLYMERIZABLE VINYL MONOMER IN THE PRESENCE OF A POLYMERIZATION CATALYST.
Claim 2
Dependent Claim
94 words
A PROCESS FOR THE PRODUCTION OF COPOLYMERS FROM (A) UNSATURATED POLYESTERS OF THE TYPE DERIVED FROM ALKYLENE GLYCOL UNSATURATED ALIPHATIC DICARBOXYLIC ACID AND FROM (B) POLYMERIZABLE MONOMERIC VINYL COMPOUNDS, WHICH COMPRISES FORMING A RESINOUS ESTERIFICATION PRODUCT OF A 1,2-DICARBOXY ETHENE WITH AN ETHER OF THE FORMULA RO-X, WHEREIN RO IS THE ETHER FORMING RADICAL OF A MONOVALENT PHENOL AND X IS AN ETHER FORMING RADICAL OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND GLYCIDOL, AND COPOLYMERIZING SAID RESINOUS PRODUCT WITH A POLYMERIZABLE VINYL MONOMER IN THE PRESENCE OF A POLYMERIZATION CATALYST.
References Cited (Backward Citations)
US2607761A
Cited
US2662070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |