Coordination complexes as polyesterification catalysts

Details Coordination complexes as polyesterification catalysts Coordination complexes as polyesterification catalysts

1978-05-22

1979-05-22

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

528274, 528275, 528281, 528283, 528284, 528285, 528286, C08G 6334

Patent

active

041560728

ABSTRACT:
A process for producing polyesters and copolyesters, useful for making films and fibers, by the polycondensation of dicarboxylic acids and aliphatic glycols using coordinations complexes of metal halides and silicon compounds as catalysts.

REFERENCES:
patent: 2465319 (1949-03-01), Whinfield et al.
patent: 3546179 (1970-12-01), Koller
patent: 3652503 (1972-03-01), Hewertson

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