Process for preparing resin composition for coloring and a resin

Details Process for preparing resin composition for coloring and a resin Process for preparing resin composition for coloring and a resin

1997-09-19

1999-02-16

Merriam, Andrew E. C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523351, 524183, 524265, 524267, 524269, 524368, 524376, 528502R, 26421118, 26421123, C08J 320

Patent

active

058721649

ABSTRACT:
A process is provided for preparing a resin composition for coloring which comprises the steps of a phase replacement and dehydration of a pigment (a); water (b); a thermoplastic resin (c), an aqueous dispersion or solution of a thermoplastic resin (d) or an aqueous compound (e) in a twin screw extruder. Also, there is provided a resin composition for coloring prepared by such a process. It is possible to efficiently manufacture a resin composition for coloring (master batch) which has excellent pigment dispersibility and which is capable of uniform coloring without causing color unevenness.

REFERENCES:
patent: 5213934 (1993-05-01), Sacripante et al.
patent: 5236645 (1993-08-01), Jones
patent: 5262268 (1993-11-01), Bertrand et al.
patent: 5340884 (1994-08-01), Mills et al.
patent: 5429902 (1995-07-01), Saito et al.

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