U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Tin titanium complexes as esterification/transesterification catalysts

Patent 4020010 Issued on April 26, 1977. Estimated Expiration Date: Icon_subject April 26, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3056818

3714234

3716523

3884832

Inventors

Application

No. 05/644357 filed on 12/29/1975

US Classes:

502/170With metal carboxylate or metal compound and carboxylic acid or anhydride

Examiners

Primary: Douglas, Winston A.
Assistant: Niebling, John F.

Attorney, Agent or Firm

Abstract

Complexes of stannous carboxylate and tetraalkyl titanate are effective esterification and transesterification catalysts.

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