Method of reducing the viscosity of polyester-alumina _trihydrat

Details Method of reducing the viscosity of polyester-alumina _trihydrat Method of reducing the viscosity of polyester-alumina _trihydrat

1978-09-20

1980-03-18

Person, S. M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106309, 260 457R, 525 4, C08K 322

Patent

active

041939085

ABSTRACT:
An improved process for dispersing alumina trihydrate in a polyester resin is disclosed wherein the improvement comprises lowering the viscosity of the polyester-trihydrate dispersion by dehydrating the alumina trihydrate to a reduction in the initial loss on ignition in a range of from 0.2 to 5.0 percent prior to adding the trihydrate to the polyester resin.

REFERENCES:
patent: 2656250 (1953-10-01), Thibon et al.
patent: 3677999 (1972-07-01), 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).
Alcoa, Activated and Catalytic Aluminas (7/14/69).

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