Document Type and Number:
Japanese Patent JPS5048029
Kind Code:
A
Abstract:
Dispersed solid particles of titanium dioxide pigment in water containing a dispersing agent are treated with an anchoring agent which is adsorbed on the pigment surface and is capable of copolymerization with other vinyl monomers. The desired monomer or mixture of monomers is added with a polymerization catalyst and heated to effect polymerization. Among the monomers employed are the acrylates, methacrylates, styrene, acrylonitrile, and vinyl sulfonate. The process provides for the coating of individual pigment particles without the undesirable coating of pigment agglomerates. Pigments coated by the process exhibit good dispersion and wetting properties when incorporated in vehicles such as paints and plastics.
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Application Number:
JP7493574A
Publication Date:
April 28, 1975
Filing Date:
June 29, 1974
Export Citation:
International Classes:
C09C1/00; C08F2/44; C08F292/00; C09C1/36; C09C3/00; C09C3/10; (IPC1-7): C09C3/10; C08K3/20; C09C1/36