Polyesters of trans-4,4-stilbenedicarboxylic acid, terephthalic

Details Polyesters of trans-4,4-stilbenedicarboxylic acid, terephthalic Polyesters of trans-4,4-stilbenedicarboxylic acid, terephthalic

1983-03-15

1983-12-13

Lee, Lester L.

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

Synthetic resins

From carboxylic acid or derivative thereof

528299, 528302, 528303, 528304, 528305, 528306, C08G 6318, C08G 6354

Patent

active

044206070

ABSTRACT:
This invention relates to polyesters of high molecular weight useful as films, fibers and molding plastics. It is particularly concerned with copolyesters comprising repeating units from trans-4,4'-stilbenedicarboxylic acid, optionally 0-40 mol % of terephthalic acid or 2,6-naphthalenedicarboxylic acid, and 1,2-propanediol, the polyesters having an inherent viscosity of about 0.3 or more and a flexural modulus of at least 900,000 psi.

REFERENCES:
patent: 2657194 (1953-10-01), Toland
patent: 3190764 (1965-10-01), Cardina
patent: 3247043 (1966-04-01), Cardina
patent: 3496839 (1970-02-01), Hartle
patent: 3842040 (1974-10-01), Browne et al.
patent: 3842041 (1974-10-01), Browne et al.

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