Method of reducing the gel and cure times for polyester-alumina

Details Method of reducing the gel and cure times for polyester-alumina Method of reducing the gel and cure times for polyester-alumina

1978-09-20

1979-07-03

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457R, 525 15, C08K 322

Patent

active

041599772

ABSTRACT:
An improved process for dispersing alumina trihydrate in a polyester resin is disclosed wherein the improvement comprises reducing the times required to accomplish the gelling and curing of a polyester resin by blending two to ten percent activated alumina, based on the total weight of alumina, with the alumina trihydrate.

REFERENCES:
patent: 2656250 (1953-10-01), Thibon et al.
patent: 3677999 (1952-07-01), Denk et al.
patent: 3733283 (1973-05-01), Duggins
patent: 3954957 (1976-05-01), Koenig
Bonsignore & Manhart, Alumina Trihydrate as a Flame Retardant and Smoke Suppressive Filler in Reinforced Polyester Plastics, (1974), (distributed by Alcoa).
Alcoa, Activated and Catalytic Aluminas, (7-14-69).

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