US3028362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymerization of acrolein with an epoxy compound in the presence of a thioamide caalyst, and product obtained thereby
Assignee: Hoechst AG Werk Kalle Albert
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Filing: 1959-02-09
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Granted: 1962-04-03
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Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 Rolf Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:26
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/34; C08G; C08G12/00; C08G12/02; C08G12/40; C08G2/00; C08G2/06; C08G2/18; C08G2/22; C08G2/26; C08G2/38; C08G59/00; C08G59/14; C08G59/18; C08G59/40; C08G59/44; C08G59/442; C08G59/68; C08G59/687; C09; C09D; C09D4/00; C09D4/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR THE PRODUCTION OF HARDENABLE ACROLEIN COPOLYMERS WHICH COMPRISES EXOTHERMICALLY COPOLYMERIZING (1) ACROLEIN WITH (2) AN EPOXY COMPOUND CONTAINING A PLURALITY OF EPOXY GROUPS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ETHERS, AN EPOXY RESIN OBTAINED FROM A POLYHYDRIC PHENOL AND A HALOGEN HYDRIN AND AN EPOXY RESIN OBTAINED FROM A POLYHYDRIC ALIPHATIC ALCOHOL AND A HALOGEN HYDRIN IN INTIMATE ADMIXTURE WITH (3) A CATALYST SELECTED FROM THE GROUP CONSISTING OF A THIOUREA A THIOAMIDE AND THIOSENMICARBAZIDE SO THAT A POLYADDITIVE POLYMERIZATION TAKES PLACE BY AN OPENING-UP OF EPOXY GROUPS.
Claim 2
Dependent Claim
92 words
A PROCESS FOR THE PRODUCTION OF HARDENABLE ACROLEIN COPOLYMERS WHICH COMPRISES EXOTHERMICALLY COPOLYMERIZING (1) ACROLEIN WITH (2) AN EPOXY COMPOUND CONTAINING A PLURALITY OF EPOXY GROUPS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ETHERS, AN EPOXY RESIN OBTAINED FROM A POLYHYDRIC PHENOL AND A HALOGEN HYDRIN AND AN EPOXY RESIN OBTAINED FROM A POLYHYDRIC ALIPHATIC ALCOHOL AND A HALOGEN HYDRIN IN INTIMATE ADMIXTURE WITH (3) A CATALYST SELECTED FROM THE GROUP CONSISTING OF A THIOUREA A THIOAMIDE AND THIOSENMICARBAZIDE SO THAT A POLYADDITIVE POLYMERIZATION TAKES PLACE BY AN OPENING-UP OF EPOXY GROUPS.
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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |