METHOD OF PRODUCING REDISPERSIBLE POWDERED MINERAL-POLYMER MATERIAL Russian patent published in 2003 - IPC

Abstract RU 2210576 C2

FIELD: manufacture of building materials. SUBSTANCE: powdered mineral-polymer material suitable as component for dry building mixes, putties, primers as well as modifying additive for mortars is prepared by adding to latex (20 wt +ACU-) stabilizing agent, in particular nonionic surfactant OP-10 in amount 2+ACU- based on the weight of rubber, stirring, adding supplementary mineral filler (chalk, 80 wt +ACU-), and stirring until curdled mass is obtained, which is held at 18-20 C and ambient humidity for 1-2 h until polymer film on the surface of agglomerates arises. Product is ground at least twofold with 2-3-h interval, fineness of grinding being such that 95+ACU- of material passes through screen 0.009, whereas residual moisture being from 3 to 1.5+ACU-. Product is finally dried to weight constancy. EFFECT: simplified technology. 2 tbl

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RU 2 210 576 C2

Authors

Ushakov V.V.

Karabut L.A.

Dates

2003-08-20Published

2001-05-14Filed