Copolyesters of polybutylene terephthalate

Details Copolyesters of polybutylene terephthalate Copolyesters of polybutylene terephthalate

1978-12-06

1980-07-08

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

528307, 528308, 528309, 525444, 525448, C08K 714, C08L 6702

Patent

active

042116899

ABSTRACT:
Novel thermoplastic copolyesters useful in fibers, films and molding resins are prepared by the transesterfication of (a) straight or branched chain poly(1,4-butylene terephthalates) and (b) a polyester of (i) a cycloaliphatic 1,2-dicarboxylic acid or a derivative thereof, etc., and (ii) 1,4-butanediol. Compositions comprising the new copolymers with high molecular weight poly(1,4-butylene terephthalates) and with reinforcing agents are also disclosed.

REFERENCES:
patent: 4064098 (1977-12-01), Saitoh et al.
patent: 4122061 (1978-10-01), Holub et al.
patent: 4125571 (1978-11-01), Scott et al.
patent: 4132707 (1979-01-01), Borman
patent: 4140670 (1979-02-01), Charles et al.

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