Phthalic acid low molecular weight polyesters and process for pr

Details Phthalic acid low molecular weight polyesters and process for pr Phthalic acid low molecular weight polyesters and process for pr

1984-06-01

1986-10-21

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

528274, 528305, 560 98, C07C 6714, C07C 6980, C07C 6982

Patent

active

046186999

ABSTRACT:
Novel low-molecular weight polyesters consisting essentially of chain members of the formula ##STR1## wherein X is at least one member selected from the group consisting of ##STR2## and R is a bifunctional aliphatic hydrocarbon or a bifunctional hydrocarbon containing at least one aromatic or cycloaliphatic ring having an inherent viscosity of 0.08 to 0.35 dl/g measured at 30.degree. C. on a 100 ml solution of 0.5 g of polyester in a solvent of 60% by weight of phenol and 40% by weight of 1,1,2,2-tetrachloroethane useful for further polymerization with amines, amides, imides and a novel method of preparing the same.

REFERENCES:
patent: 2079487 (1937-05-01), Carswell
patent: 3345400 (1967-10-01), Anagnostopoulos et al.
patent: 4107137 (1978-08-01), Proux et al.
patent: 4312975 (1982-01-01), Salee et al.

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