Pigmentation of plastics moulding material

Details Pigmentation of plastics moulding material Pigmentation of plastics moulding material

1975-09-29

1978-11-28

Woo, Jay H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

264211, 264349, C08L 6106

Patent

active

041275551

ABSTRACT:
A method of producing pigmented extrudates or mouldings from an unpigmented thermosetting moulding material, which comprises roughly blending a pigment component with an aminoplast moulding material substantially free from pigment and having an average particle size not greater than 150 microns, and completely dispersing the pigment compound through the aminoplast moulding material by progressing the rough blend through an extruder or injection moulding machine having a barrel grooved in accordance with German Offenlegungschrift No. 2514307, and extruding or injection moulding the resulting pigmented material.

REFERENCES:
patent: 2813302 (1957-11-01), Beck
patent: 2857624 (1958-10-01), Hanzel et al.
patent: 3078511 (1963-02-01), Street
patent: 3148412 (1964-09-01), Spreeuwers
patent: 3461490 (1969-08-01), Cottingham
patent: 3517095 (1970-06-01), Dunnington et al.
patent: 3792020 (1974-02-01), Huck et al.
patent: 3817675 (1974-06-01), Maiocco
patent: 3855173 (1974-12-01), Huck et al.
patent: 4013276 (1977-03-01), Boham et al.
Modern Plastics Encyclopedia, pp. 455 and 456, 1968.

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