C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5750
C08L 67/06 (2006.01) C08G 63/52 (2006.01) C08G 63/676 (2006.01) C08K 7/02 (2006.01)
Patent
CA 1148684
ABSTRACT OF THE DISCLOSURE This invention involves a curable molding composition comprising a mixture of (a) a polyester of the following formula: Image wherein n has an average value between about 1.5 and 2, m is 2-n, R is the hydroxyl-free residue of a pre- dominantly hydroxyl terminated polyester having a mole- cular weight not exceeding about 1500 and obtained by the condensation of a diol selected from the class con- sisting of 1,2-propylene glycol, 1,3-butanediol,2,2- dimethyl-1,3-propanadiol, dipropylene glycol, diethyl- ene glycol, 2,2-dimethyl-3-hydroxypropyl 2,2-dimethyl- 3-hydroxypropionate, the ethylene and propylene oxide derivatives of 2,2-bias(4-hydroxyphenyl)propane, and mix- tures thereof, and mixtures of ethylene glycol and said diols, with a dicarboxylic acid or anhydride selected from the class consisting of maleic acid and anhydride, fumaric acid, ortho-phtahlic acid and anhydride, iso- phthalic acid, terephthalic acid, carbic acid and anhy- dride, and mixtures thereof, (b) maleic anhydride, (c) an ethylenically unsaturated monomer which forms a homogeneous mixture with and is copolymerirable with (a) and (b), and (d) one or more reinforcing fibers having a melting point or a glass transition temperature above about 130°C.
351023
Hopley William G.
Union Carbide Corporation
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