Copolyetherester blends

Details Copolyetherester blends Copolyetherester blends

C - Chemistry, Metallurgy

08

L

400/3015

C08L 67/02 (2006.01) C08G 63/672 (2006.01)

Patent

CA 1055188

ABSTRACT OF THE DISCLOSURE A substantially uniform blend of (A) 50-95% by weight of a copolyetherester having a melting point of at least 120°C which is prepared from a dicarboxylic acid, a low molecular weight diol and poly(tetramethylene oxide) glycol and (B) 50-5% of a polymeric softener having a melting point below 0°C and selected from the group consisting of (1) a polyetherester prepared from poly- (tetramethylene oxide) glycol and a dicarboxylic acid, and (2) a copolyetherester of a dicarboxylic acid, a low molecular weight diol, and poly(tetramethylene oxide) glycol. Component (?) must be noncrystalline above 0°C and have an inherent viscosity above about 0.3. Optionally up to about 5 percent of an antioxidant may also be present. Blends of the invention may be used as fabric coatings, auto trim, vehicle bumpers and the like.

221474

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