Pigmentation of polymers

Details Pigmentation of polymers Pigmentation of polymers

1975-01-13

1977-01-25

Douglas, Winston A.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

260 4221, 260 4246, 106288Q, 106307, C08J 300

Patent

active

040049400

ABSTRACT:
There is provided an improved polypropylene/pigment concentrate for use in preparing pigmented fibers. The improvement comprises at least 95 weight percent of the polypropylene particles have a maximum chord of less than 50 microns. Fibers prepared from concentrates containing 10-75% by weight of pigment have improved color, fewer pigment agglomerates and fewer broken filaments.

REFERENCES:
patent: 2497346 (1950-02-01), Collins
patent: 3275591 (1966-09-01), Tomlinson
patent: 3600354 (1971-08-01), Kunze et al.
patent: 3876608 (1975-04-01), Anderson et al.

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