Patent US3393244A successfully refreshed from Google Patents.
US3393244A
Expired / Lapsed
US
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Bis(p-hydroxycumyl)benzene
Assignee: Honeywell International Inc
•
Filing: 1961-09-25
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Granted: 1968-07-16
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Expires: 1981-09-25
Abstract
No abstract record available.
Inventors
- 👤 George F Broderick
- 👤 Bryce C Oxenrider
- 👤 Vitrone John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:26
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/16; C07C39/00; C07C39/12; C07C39/15
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A BISPHENOL OF THE GROUP CONSISTING OF 1,4-BIS(PHYDROXYCUMYL) BENZENE AND 1,3-BIS(P-HYDROXCUMYL) BENZENE.
Claim 2
Dependent Claim
12 words
A BISPHENOL OF THE GROUP CONSISTING OF 1,4-BIS(PHYDROXYCUMYL) BENZENE AND 1,3-BIS(P-HYDROXCUMYL) BENZENE.
Claim 3
Dependent Claim
61 words
A PROCESS FOR THE PRODUCTION OF A BISPHENOL OF THE GROUP CONSISTING OF 1,4-BIS(P-HYDROXYCUMYL) BENZENE AND 1,3-BIS(P-HYDROXCUMYL) BENZENE WHICH COMPRISES REACTING THE CORRESPONDING DISCARBINOL OF DISOPROPYL BENZENE WITH AT LEAST A STOICHIOMETRIC AMOUNT OF PHENOL AT A TEMPERATURE OF ABOUT 40* TO 100*C. IN THE PRESENCE OF ANHYDROUS HYDROGEN CHLORIDE AS CATALYST AND RECOVERING THE BISPHENOL FROM THE RESULTING REACTION MASS.
Claim 4
Dependent Claim
61 words
A PROCESS FOR THE PRODUCTION OF A BISPHENOL OF THE GROUP CONSISTING OF 1,4-BIS(P-HYDROXYCUMYL) BENZENE AND 1,3-BIS(P-HYDROXCUMYL) BENZENE WHICH COMPRISES REACTING THE CORRESPONDING DISCARBINOL OF DISOPROPYL BENZENE WITH AT LEAST A STOICHIOMETRIC AMOUNT OF PHENOL AT A TEMPERATURE OF ABOUT 40* TO 100*C. IN THE PRESENCE OF ANHYDROUS HYDROGEN CHLORIDE AS CATALYST AND RECOVERING THE BISPHENOL FROM THE RESULTING REACTION MASS.
References Cited (Backward Citations)
US2247402A
Cited
US2285626A
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US2440909A
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US2548435A
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US2730502A
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US2865887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |