US2881220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of dimethyl phenyl carbinol
Assignee: Honeywell International Inc
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Filing: 1956-11-14
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Granted: 1959-04-07
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Expires: 1976-11-14
Abstract
No abstract record available.
Inventors
- 👤 William D Griffin
- 👤 Township Morris
- 👤 Oser Zalik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
PROCESS FOR PRODUCTIONN OF A DIMETHYL ARYL CARBINOL WHICH COMPRISES MAINTAINING SOLID TRIPOTASSIUM PHOSPHATE IN CONTACT WITH AN ARYL DIMETHYL METHINE HYDROPEROXIDE WHEREIN THE ARYL RADICALS IS A MEMBER OF THE GROUP CONSISTING OF PHENYL AND C1-C3 ALKYLPHENYL, AT LEAST UNTIL SUBSTANTIAL QUANTITIES OF DIMETHYL PHENYL CARBINOL REACTION PRODUCT HAVE BEEN PRODUCED; REACTION TEMPERATURE BEING THE RANGE BETWEEN ABOUT 50*C. AND THE ATMOSPHERIC PRESSURE BOILING POINT OF THE REACTION MIXTURE AND CONCENTRATION OF SAID HYDROPEROXIDE CONTACTED WITH SAID PHOSPHATE REACHING AT LEAST ABOUT 10% BY WEIGHT OF THE REACTION MIXTURE.
Claim 2
Dependent Claim
90 words
PROCESS FOR PRODUCTIONN OF A DIMETHYL ARYL CARBINOL WHICH COMPRISES MAINTAINING SOLID TRIPOTASSIUM PHOSPHATE IN CONTACT WITH AN ARYL DIMETHYL METHINE HYDROPEROXIDE WHEREIN THE ARYL RADICALS IS A MEMBER OF THE GROUP CONSISTING OF PHENYL AND C1-C3 ALKYLPHENYL, AT LEAST UNTIL SUBSTANTIAL QUANTITIES OF DIMETHYL PHENYL CARBINOL REACTION PRODUCT HAVE BEEN PRODUCED; REACTION TEMPERATURE BEING THE RANGE BETWEEN ABOUT 50*C. AND THE ATMOSPHERIC PRESSURE BOILING POINT OF THE REACTION MIXTURE AND CONCENTRATION OF SAID HYDROPEROXIDE CONTACTED WITH SAID PHOSPHATE REACHING AT LEAST ABOUT 10% BY WEIGHT OF THE REACTION MIXTURE.
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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |