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Patent US3227779A successfully refreshed from Google Patents.
US3227779A
Expired / Lapsed
US
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Phenyl acetaldehyde compounds as regulators for the polymerization of unsaturated polyester resins with ethylenically unsaturated monomers
Assignee: Evonik Operations GmbH
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Filing: 1962-03-19
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Granted: 1966-01-04
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Hopff Heinrich
- 👤 Kleiner Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:23
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A PROCESS FOR THE COPOLYMERIZATION OF UNSATURATED POLYESTER RESINS OBTAINED FROM POLYCARBOXYLIC ACIDS AND POLYHYDRIC ALCOHOLS, AT LEAST ONE OF WHICH COMPONENTS IS ETHYLENICALLY UNSATURATED, AND LIQUID ETHYLENICALLY UNSATURATED POLYMERIZABLE MONOMERS WITH A POLYMERIZATION REGULATOR, THE STEP WHICH COMPRISES CARRYING OUT SUCH COPOLYMERIZATION OF THE UNSATURATED POLYESTER RESIN WITH THE ETHYLENICALLY UNSATURATED MONOMER IN CONTACT WITH A PHENYL ACETALDEHYDE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
64 words
IN A PROCESS FOR THE COPOLYMERIZATION OF UNSATURATED POLYESTER RESINS OBTAINED FROM POLYCARBOXYLIC ACIDS AND POLYHYDRIC ALCOHOLS, AT LEAST ONE OF WHICH COMPONENTS IS ETHYLENICALLY UNSATURATED, AND LIQUID ETHYLENICALLY UNSATURATED POLYMERIZABLE MONOMERS WITH A POLYMERIZATION REGULATOR, THE STEP WHICH COMPRISES CARRYING OUT SUCH COPOLYMERIZATION OF THE UNSATURATED POLYESTER RESIN WITH THE ETHYLENICALLY UNSATURATED MONOMER IN CONTACT WITH A PHENYL ACETALDEHYDE COMPOUND OF THE FORMULA
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |