Pigments with improved dispersibility in thermoplastic resins

Details Pigments with improved dispersibility in thermoplastic resins Pigments with improved dispersibility in thermoplastic resins

1995-08-23

1996-10-22

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524310, 524312, 524317, 524413, 523200, 523204, 106428, 106436, C08K 5101, C08K 322, C09C 136

Patent

active

055677541

ABSTRACT:
Thermoplastic concentrates comprising inorganic pigments, such as titanium dioxide, treated with a partial ester polyol and unsaturated monocarboxylic acid treating agent, of the formula R(OH).sub.x COOR', wherein R is an alkyl or aryl radical containing from about 2 to about 20 carbon atoms, R' is an unsaturated alkyl radical containing from about 6 to about 20 carbon atoms, and x is a number from about 2 to about 6, are disclosed. Such treatment improves the dispersibility of the pigments in thermoplastic resins. The treatment also enables the production of thermoplastic concentrates comprising a high percentage of treated inorganic pigment dispersed in a thermoplastic resin.

REFERENCES:
patent: 3728142 (1973-04-01), Rudolph et al.
patent: 3754956 (1973-08-01), Durrant et al.
patent: 3825438 (1974-07-01), Pritchard et al.
patent: 4675356 (1987-06-01), Miyata
patent: 5288320 (1994-02-01), Decelles

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