Copolyesters of poly(alkylene glycol aromatic acid esters) and d

Details Copolyesters of poly(alkylene glycol aromatic acid esters) and d Copolyesters of poly(alkylene glycol aromatic acid esters) and d

1976-12-23

1978-12-05

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457P, 260 4575B, 260DIG24, 528273, C08G 6318

Patent

active

041285263

ABSTRACT:
Novel thermoplastic copolyesters useful in molding resins are prepared by the interesterification of (a) diaromatic acids and diols and/or reactive derivatives thereof or terminally-reactive straight, branched or alicyclic poly(alkylene glycol aromatic acid esters) and (b) a terminally-reactive di-ester comprising an aromatic diol. Compositions comprising the new modified copolymers produce molded articles with superior impact strength, higher heat deflection temperatures, and modified crystallization behavior. Also disclosed are embodiments including reinforcing agents, and/or flame retardant agents.

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patent: 3830771 (1974-08-01), Cohen et al.
patent: 3833685 (1974-09-01), Wambach
patent: 3915926 (1975-10-01), Wambach
patent: 3936400 (1976-02-01), Wambach

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