US3006876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyester resins which cure in the presence of air, and to a process of preparing the same
Assignee: Reichhold Chemicals Inc
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Filing: 1958-06-26
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Granted: 1961-10-31
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Expires: 1978-06-26
Abstract
No abstract record available.
Inventors
- 👤 Delius Hermann
- 👤 Becker Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:51
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/56; C08G63/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A PROCESS OF MAKING TACK-FREE FILM AND ARTICLES WITH TACK-FREE SURFACES IN THE PRESENCE OF AIR WHICH COMPRISES CURING BY COPOLYMERIZATION (A) A POLYMERIZABLE MONOMERIC VINYL COMPOUND, AND (B) AN UNSATURATED ALKYD MADE BY PARTIALLY REACTING IN A FIRST STAGE (1) AT LEAST ONE MEMBER OF A GROUP CONSISISTING OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF AND MIXTURES THEREOF WITH A MEMBER OF A GROUP CONSISTING OF DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF HAVING NO UNSATURATION OTHER THAN BENZOID, (2) AT LEAST ONE POLYHYDRIC ALCOHOL, AND (3) AT LEAST ONE MEMBER OF A GROUP CONSISTING OF UNSATURATED FAT ACIDS AND ROSIN ACIDS AND MIXTURES THEREOF, AND IN A SEPARATE STAGE COMPLETING THE REACTION BY THE ADDITION OF (4) ALLYL GLYCIDYL ETHER.
Claim 2
Dependent Claim
121 words
A PROCESS OF MAKING TACK-FREE FILM AND ARTICLES WITH TACK-FREE SURFACES IN THE PRESENCE OF AIR WHICH COMPRISES CURING BY COPOLYMERIZATION (A) A POLYMERIZABLE MONOMERIC VINYL COMPOUND, AND (B) AN UNSATURATED ALKYD MADE BY PARTIALLY REACTING IN A FIRST STAGE (1) AT LEAST ONE MEMBER OF A GROUP CONSISISTING OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF AND MIXTURES THEREOF WITH A MEMBER OF A GROUP CONSISTING OF DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF HAVING NO UNSATURATION OTHER THAN BENZOID, (2) AT LEAST ONE POLYHYDRIC ALCOHOL, AND (3) AT LEAST ONE MEMBER OF A GROUP CONSISTING OF UNSATURATED FAT ACIDS AND ROSIN ACIDS AND MIXTURES THEREOF, AND IN A SEPARATE STAGE COMPLETING THE REACTION BY THE ADDITION OF (4) ALLYL GLYCIDYL ETHER.
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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |