US3056818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium and zirconium esterification catalysts
Assignee: Goodrich Corp
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Filing: 1955-10-13
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Granted: 1962-10-02
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Expires: 1975-10-13
Abstract
No abstract record available.
Inventors
- 👤 Frank X Werber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:24
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/85; B; B01; B01J; B01J31/00; B01J31/02; B01J31/0201; B01J31/0211; B01J31/0212; B01J31/0214; C07; C07C; C07C67/00; C07C67/08; B01J2231/00; B01J2231/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD OF PREPARING ESTERS COMPRISING REACTING AT AN ELEVATED TEMPERATURE IN LIQUID PHASE (1) A MEMBER SELECTED FROM THE CLASS CONSISTING OF CARBOXYLIC ACIDS AND CARBOXYLIC ANHYDRIDES WITH (2) ALIPHATIC PRIMARY AND SECONDARY ALCOHOLS, SAID ACIDS, ANHYDRIDES AND ALCOHOLS CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN, IN THE PRESENCE OF FROM ABOUT .01 TO ABOUT 10 WEIGHT PERCENT BASED ON (1) OF A COMPOUND HAVING THE GENERIC STRUCTURE MX4 IN WHICH M IS SELECTED FROM THE CLASS CONSISTING OF TITANIUM AND ZIRCONIUM AND X IS SELECTED FROM THE CLASS CONSISTING OF HYDROXYL GROUPS, ALKOXY GROUPS, ACYLOXY GROUPS, HYDROXY ALKOXY GROUPS, AMINO-ALKOXY GROUPS AND HALOGEN ATOMS HAVING ATOMIC WEIGHTS FROM 3K.457 TO 79.916 INCLUSIVE, AT LEAST ONE X BEING AN ORGANIC RADICAL AS DEFINED ABOVE AND HAVING FROM 2 TO 18 CARBON ATOMS, AND REMOVING THE WATER OF ESTERIFICATION FROM THE REACTION SUBSTANTIALLY AS RAPIDLY AS IT IS FORMED.
Claim 2
Independent Claim
148 words
A METHOD OF PREPARING ESTERS COMPRISING REACTING AT AN ELEVATED TEMPERATURE IN LIQUID PHASE (1) A MEMBER SELECTED FROM THE CLASS CONSISTING OF CARBOXYLIC ACIDS AND CARBOXYLIC ANHYDRIDES WITH (2) ALIPHATIC PRIMARY AND SECONDARY ALCOHOLS, SAID ACIDS, ANHYDRIDES AND ALCOHOLS CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN, IN THE PRESENCE OF FROM ABOUT .01 TO ABOUT 10 WEIGHT PERCENT BASED ON (1) OF A COMPOUND HAVING THE GENERIC STRUCTURE MX4 IN WHICH M IS SELECTED FROM THE CLASS CONSISTING OF TITANIUM AND ZIRCONIUM AND X IS SELECTED FROM THE CLASS CONSISTING OF HYDROXYL GROUPS, ALKOXY GROUPS, ACYLOXY GROUPS, HYDROXY ALKOXY GROUPS, AMINO-ALKOXY GROUPS AND HALOGEN ATOMS HAVING ATOMIC WEIGHTS FROM 3K.457 TO 79.916 INCLUSIVE, AT LEAST ONE X BEING AN ORGANIC RADICAL AS DEFINED ABOVE AND HAVING FROM 2 TO 18 CARBON ATOMS, AND REMOVING THE WATER OF ESTERIFICATION FROM THE REACTION SUBSTANTIALLY AS RAPIDLY AS IT IS FORMED.
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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |