Vinyl halide polymer color concentrate

Details Vinyl halide polymer color concentrate Vinyl halide polymer color concentrate

1997-02-07

1998-12-01

Talbot, Brian K.

Coating processes

Particles, flakes, or granules coated or encapsulated

427222, B05D 700

Patent

active

058435247

ABSTRACT:
The present invention provides a new and improved method of producing a dustless vinyl halide polymer color concentrate that does not require the formation of a hot melt or the use of wax. The color concentrate comprises a multitude of fine particles which each comprise a vinyl halide polymer resin core and a colorant material shell. The method includes the steps of providing a vinyl halide polymer, providing a colorant material, providing a compatibilizer having a solubility parameter of from about 7 to about 12 (cal/ml).sup.1/2, and mixing the vinyl halide polymer, compatibilizer and colorant material together to yield the dustless concentrate in the form of a vinyl halide resin core surrounded by a shell of the compatibilzer and the colorant material.

REFERENCES:
patent: 3591409 (1971-07-01), Aubrey et al.
patent: 3819560 (1974-06-01), Kehr
patent: 4375520 (1983-03-01), Pennie et al.
patent: 4495128 (1985-01-01), Stoffelsma
patent: 5066422 (1991-11-01), Felter et al.
patent: 5139817 (1992-08-01), Abe et al.
patent: 5264280 (1993-11-01), Chundury et al.

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