Polyester resin compositions

Details Polyester resin compositions Polyester resin compositions

1980-04-14

1981-10-13

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525 36, 525 39, 525 40, 525 43, 525 48, 525 49, 525438, 525445, 528303, 528304, C08L 6702

Patent

active

042947510

ABSTRACT:
This invention involves a curable molding composition comprising a mixture of (a) a polyester of the following formula: ##STR1## wherein n has an average value between about 1.5 and 2, m is 2-n, R is the hydroxyl-free residue of a predominantly hydroxyl terminated polyester having a molecular weight not exceeding about 1500 and obtained by the condensation of a diol selected from the class consisting of 1,2-propylene glycol, 1,3-butanediol, 2,2-dimethyl-1,3-propanediol, dipropylene glycol, diethylene glycol, 2,2-dimethyl-3-hydroxypropyl 2,2-dimethyl-3-hydroxypropionate, the ethylene and propylene oxide derivatives of 2,2-bis(4-hydroxyphenyl)propane, and mixtures thereof, and mixtures of ethylene glycol and said diols, with a dicarboxylic acid or anhydride selected from the class consisting of maleic and anhdride, fumaric acid, ortho-phthalic acid and anhydride, isophthalic acid, terephthalic acid, carbic acid and anhydride, and mixtures thereof, (b) maleic anhydride, (c) an ethylenically unsaturated monomer which forms a homogeneous mixture with and is copolymerizable with (a) and (b), and (d) one or more reinforcing fibers having a melting point or a glass transition temperature above about 130.degree. C.

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patent: 3723390 (1973-03-01), Carpenter et al.
patent: 3736278 (1973-05-01), Wada et al.
patent: 3766129 (1973-10-01), Pesez
patent: 3784586 (1974-01-01), Thomas et al.
patent: 4102944 (1978-07-01), Fukuyama et al.
patent: 4137279 (1979-01-01), Smith et al.

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