Pigments with improved dispersibility in thermoplastic resins

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

C - Chemistry, Metallurgy

08

K

C08K 9/04 (2006.01) C09C 1/36 (2006.01) C09C 3/08 (2006.01)

Patent

CA 2183827

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)xCOOR', 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.

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