Preparation of polyesters with tin catalyst

Details Preparation of polyesters with tin catalyst Preparation of polyesters with tin catalyst

1991-08-27

1992-11-24

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528176, 528193, 528194, 528279, C08G 6378, C08G 6382, C08G 6300

Patent

active

051663104

ABSTRACT:
Polyesters are prepared from dihydroxyl-containing compounds and di-carboxylic acids or anhydrides or lower alkyl esters thereof in the presence of a combination of tin catalysts comprising (1) at least one organotin salt of a carboxylic acid, and (2) either (a) at least one organotin oxide, or (b) at least one organostannoic acid, or (c) a combination of (a) and (b). The polyesters prepared by this process are useful in coating, adhesive, fiber and molding applications.

REFERENCES:
patent: 2720507 (1955-10-01), Caldwell
patent: 3162616 (1964-12-01), Dombrow
patent: 3345339 (1967-10-01), Parket et al.
patent: 3716523 (1973-02-01), Cook
patent: 4018708 (1977-04-01), Vogt et al.
patent: 4020010 (1977-04-01), Vogt et al.
patent: 4072631 (1978-02-01), Vogt et al.
patent: 4554344 (1985-11-01), Jackson, Jr. et al.
patent: 4970288 (1990-11-01), Larkin et al.

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