Color stabilization of filled polyolefins

Details Color stabilization of filled polyolefins Color stabilization of filled polyolefins

1992-03-30

1993-06-01

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524203, 524399, 524451, C08K 539

Patent

active

052160564

ABSTRACT:
The invention relates to silicate mineral filled polyolefin compositions which are stabilized against color deterioration during processing by incorporting therein a synergistic color stabilizer composition consisting of zinc dibutylidthiocarbamate and zinc stearate in critical ratios.

REFERENCES:
patent: 3001969 (1961-09-01), Tholstrup et al.
patent: 3218275 (1965-11-01), Geigle
patent: 3496128 (1970-02-01), Casey et al.
patent: 3553158 (1971-01-01), Gilfillan
patent: 4255303 (1981-03-01), Keogh
Hancock: "Fillers for Polypropylene" European Plastics News May 1977 41-43.
Seymour--Additives for Plastics-vol. 1 State of the Art, 51-77 (1978).

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