US3030428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxybenzyl alcohol production
Assignee: —
•
Filing: —
•
Granted: 1962-04-17
•
Expires: 1979-04-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:12
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/20; C07C37/16; C07C43/00; C07C43/02; C07C43/20; C07C43/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR PREPARING A HYDROXYBENZYL ALOCOHOL WHICH COMPRISES FORMING A SINGLE PHASE SUBSTANTIALLY ANHYDROUS LIQUID MIXTURE COMPRISING A PHENOL HAVING A REPLACEABLE HYDROGEN ATOM ON AT LEAST ONE OF THE ORTHO AND PARA RING CARBON ATOMS, FORMALDEHYDE, AND AN ALKANOL HAVING AT LEAST TWO CARBON ATOMS DIRECTLY CONNECTED TO THE HYDROXYLIC CARBON ATOM, REACTING TOGETHER SAID PHENOL AND FORMALDEHYDE AT A TEMPERATURE BELOW ABOUT 25*C. IN THE PRESENCE OF A CATALYTIC AMOUNT OF A MISCIBLE BASE, AND SEPARATING THE HYDROXYBENZYL ALCOHOL FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
86 words
A PROCESS FOR PREPARING A HYDROXYBENZYL ALOCOHOL WHICH COMPRISES FORMING A SINGLE PHASE SUBSTANTIALLY ANHYDROUS LIQUID MIXTURE COMPRISING A PHENOL HAVING A REPLACEABLE HYDROGEN ATOM ON AT LEAST ONE OF THE ORTHO AND PARA RING CARBON ATOMS, FORMALDEHYDE, AND AN ALKANOL HAVING AT LEAST TWO CARBON ATOMS DIRECTLY CONNECTED TO THE HYDROXYLIC CARBON ATOM, REACTING TOGETHER SAID PHENOL AND FORMALDEHYDE AT A TEMPERATURE BELOW ABOUT 25*C. IN THE PRESENCE OF A CATALYTIC AMOUNT OF A MISCIBLE BASE, AND SEPARATING THE HYDROXYBENZYL ALCOHOL FROM THE REACTION MIXTURE.
References Cited (Backward Citations)
US2732406A
Cited
US2710305A
Cited
US2792428A
Cited
US2838571A
Cited
US2841624A
Cited
US2909568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |