Pigmentable low-shrinkage unsaturated polyester resin compositio

Details Pigmentable low-shrinkage unsaturated polyester resin compositio Pigmentable low-shrinkage unsaturated polyester resin compositio

1976-02-19

1977-10-04

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75UA, 260862, C08K 714, C08L 6706

Patent

active

040523586

ABSTRACT:
An unsaturated polyester resin composition comprises a mixture of a particular unsaturated polyester, an unsaturated monomer copolymerizable with the unsaturated polyester and polystyrene having a certain particle size in specific amounts. The unsaturated polyester is a reaction product of a dicarboxylic acid component containing .alpha.,.beta.-unsaturated dicarboxylic acid with a glycol component containing certain amounts of neopentyl glycol and 2,2-bis(4-hydroxycyclohexyl) propane. The resin composition exhibits favorable properties such as low shrinkage upon curing, good colorability and good storage stability, and is useful particularly in formulating premixed molding compounds.

REFERENCES:
patent: 3503921 (1970-03-01), Souza et al.
patent: 3533999 (1970-10-01), Fekete et al.
patent: 3560445 (1971-02-01), Fekete et al.
patent: 3830875 (1974-08-01), Meincke et al.

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