Phosphate ester coating on inorganic fillers for polyester resin

Details Phosphate ester coating on inorganic fillers for polyester resin Phosphate ester coating on inorganic fillers for polyester resin

1978-09-20

1980-01-15

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

428403, 260 457P, C08K 322, C08K 332, C08K 904

Patent

active

041838432

ABSTRACT:
An improved process for dispersing inorganic fillers, such as alumina trihydrate, in a polyester resin is disclosed wherein the improvement comprises significantly lowering the viscosity of the polyester-filler dispersion by coating the filler with 0.05 to 1.0 percent, based on the weight of the filler, of a polar phosphate ester surfactant containing acid groups and polar ether groups, prior to adding the filler to the polyester resin.

REFERENCES:
patent: 2984635 (1961-05-01), Harris
patent: 3780156 (1973-12-01), Cameron
patent: 3909484 (1975-09-01), Beavon
patent: 4029514 (1977-06-01), Lange
Bonsignore & Manhart, "Alumina Trihydrate as a Flame Retardant and Smoke Suppressive Filler in Reinforced Polyester Plastics," Aluminum Co. of America (1974) Presented at 29th Annual Conf. of S.P.I. Reinforced Plastics/Composites Institute.

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