Composite pigment and production method thereof, paint composition containing composite pigment, and coating film
AssigneeIshihara Sangyo Kaisha, Ltd.
InventorsTakeshi FUJIMURA, Shogo ISEYA, Hironori SHIMOITA, Yusuke TANIGUCHI
Life of this patent
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Abstract
The purpose of the present invention is to provide a composite pigment which can be dispersed and made into paint in a manner that saves labor compared with conventional flat emulsion paints, and which can achieve concealing properties and low glossiness (a luster reduction effect) without separately adding a matting agent. This composite pigment contains an inorganic compound and/or an organic compound, and a fixed extender pigment.
Claims19
A composite pigment comprising extender pigment particles fixed to an inorganic compound and/or organic compound.
A method for producing a composite pigment, comprising adjusting a pH of a slurry containing an inorganic compound source and extender pigment particles so that an inorganic compound derived from the inorganic compound source is precipitated to fix the extender pigment particles.
A method for producing a composite pigment, comprising preparing a slurry containing inorganic color pigment particles, extender pigment particles, and an inorganic compound source and/or an organic compound, and fixing, under stirring, the inorganic color pigment particles and the extender pigment particles with the inorganic compound and/or organic compound.
A method for producing a composite pigment, comprising preparing a slurry containing inorganic color pigment particles containing a zinc element, extender pigment particles, and an inorganic compound source, and adjusting a pH of the slurry so that an inorganic compound derived from the inorganic compound source is precipitated to fix the inorganic color pigment particles and the extender pigment particles.
Dependencies are inferred from the claim text.