Thermosetting unsaturated polyester-unsaturated monomer...

Details Thermosetting unsaturated polyester-unsaturated monomer... Thermosetting unsaturated polyester-unsaturated monomer...

C - Chemistry, Metallurgy

08

K

400/5501, 400/55

C08K 3/22 (2006.01) C08G 18/68 (2006.01) C08G 18/83 (2006.01) C08K 5/29 (2006.01) C08L 67/06 (2006.01) C08L 75/06 (2006.01) C08L 75/14 (2006.01)

Patent

CA 1079890

APPLICATION FOR LETTERS PATENT FOR MATURATION OF POLYESTER COMPOSITIONS FOR VISCOSITY INDEX CONTROL Abstract of the Disclosure The invention relates to improving the viscosity temperature dependence of a maturated moldable unsaturated polyester resin system, by utilizing a dual thickening system consisting of an oxide or hydroxide of magnesium or calcium and a polyisocyanate, which dual thickening system provides a greatly improved visocosity index, i.e., less viscosity decrease with increase in temperature, thereby providing substantial advantages upon being subjected to temperature increases such as are encountered in molding. INVENTORS: Joseph Norman Epel Vinod Chandulal Shah Kenneth Alfred Iseler

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