US3035018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high molecular weight dihydric phenols and resins
Assignee: Celanese Coatings Co
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Filing: 1958-12-12
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Granted: 1962-05-15
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Expires: 1978-12-12
Abstract
No abstract record available.
Inventors
- 👤 Herbert P Price
- 👤 William J Belanger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:04
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/621; C08G59/02; C08G59/04; C08G59/06; C08G59/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF PRODUCING ALIPHATIC MODIFIED HIGH MOLECULAR WEIGHT DIHYDRIC PHENOLS AND RESINS WHICH COMPRISES FORMING A MIXTURE OF A DI(CHLOROHYDRIN) ETHER OF A POLYHYDRIC ALCOHOL, A MONOCHLOROHYDRIN ETHER OF A HYDROXY-ALIPHATIC ETHER OFA DIHYDRIC PHENOL, AND A DI HYDRIC PHENOL, AND SUBJECTING THE MIXTURE TO A DEYHDROHALOGENATION REACTION WITH AN ALKALINE DEHYDROHALOGENATING AGENT, SAID MONOCHLOROHYDRIN ETHER CONTAINING AN UNREACTED PHENOLIC HYDROXYL GROUP AND SAID MIXTURE CONTAINING FOR EACH MOL OF DI(CHLOROHYDRIN) ETHER OF A POLYHYDRIC ALCOHOL, ABOUT 1/2 TO 20 MOLS OF THE MONOCHLOROHYDRIN ETHER AND ABOUT 1/2 TO 2 MOLS OF THE DIHYDRIC PHENOL.
Claim 2
Independent Claim
96 words
THE METHOD OF PRODUCING ALIPHATIC MODIFIED HIGH MOLECULAR WEIGHT DIHYDRIC PHENOLS AND RESINS WHICH COMPRISES FORMING A MIXTURE OF A DI(CHLOROHYDRIN) ETHER OF A POLYHYDRIC ALCOHOL, A MONOCHLOROHYDRIN ETHER OF A HYDROXY-ALIPHATIC ETHER OFA DIHYDRIC PHENOL, AND A DI HYDRIC PHENOL, AND SUBJECTING THE MIXTURE TO A DEYHDROHALOGENATION REACTION WITH AN ALKALINE DEHYDROHALOGENATING AGENT, SAID MONOCHLOROHYDRIN ETHER CONTAINING AN UNREACTED PHENOLIC HYDROXYL GROUP AND SAID MIXTURE CONTAINING FOR EACH MOL OF DI(CHLOROHYDRIN) ETHER OF A POLYHYDRIC ALCOHOL, ABOUT 1/2 TO 20 MOLS OF THE MONOCHLOROHYDRIN ETHER AND ABOUT 1/2 TO 2 MOLS OF THE DIHYDRIC PHENOL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |