METHOD OF MANUFACTURING STRUCTURED PIGMENTED COMPOSITE Russian patent published in 2000 - IPC

Abstract RU 2149167 C1

FIELD: varnish-and-paint industry. SUBSTANCE: one forms dispersion of uncoated titanium dioxide particles at such a pH value as to impart surface charge to particles. Dispersion is then concentrated through transverse-flow filtration to 50% titanium dioxide content. Concentrated dispersion is mixed with dispersion of chemically individual particles having unlike surface charge under conditions assuring that surface charge of each material does not reverse. Presence of unlike surface charges result in association of titanium dioxide particles with chemically individual particles in pigmented composite obtained. Composite finds use when preparing paints with elevated opacity and with the same amounts of titanium dioxide as in ordinary paints. EFFECT: increased stability. 23 cl, 6 tbl, 2 ex

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RU 2 149 167 C1

Authors

Simpson Lesli Ehjnsli

Robson Kit

Najt Dehvid Trevor

Braun Ronal'D

Dates

2000-05-20Published

1996-03-07Filed