PLASTE-FORMING RESIN FOR UNIVERSAL PIGMENT PASTE Russian patent published in 2013 - IPC C09D167/08 C09D133/08 C09D17/00 C08L67/08 C08L33/08 

FIELD: chemistry.

SUBSTANCE: paste-forming resin AB which is a mixture of a water-reducible alkyd resin B and a basic acrylic copolymer resin A, wherein the basic acrylic copolymer resin A is a copolymer of at least three classes of vinyl monomers having each at least one copolymerisable olefinic unsaturation, the vinyl monomers comprising at least one amino group-containing vinyl type monomer Al, at least one monomer A2 selected from a group consisting of linear or branched alkyl(meth)acrylates having from 1 to 13 carbon atoms in the alkyl group, and at least one hydrophilic vinyl monomer A3 having a moiety derived from a polyether glycol which is a polyethylene glycol or a mixed ether of ethylene and propylene glycol having a weight ratio of at least 60% of oxyethylene groups in the total mass of oxyalkylene groups, where one of the hydroxyl groups of the polyether glycol is converted to an ether group, and the other hydroxyl group is removed by esterification with an olefinically unsaturated monocarboxylic acid, or by etherification with an olefinically unsaturated alcohol, or by urethane formation via reaction with an adduct of a hydroxyalkyl(meth)acrylate and a diisocyanate. The pigment paste contains a paste-forming resin AB and at least one pigment selected from a group comprising inorganic pigments and organic pigments. The method of applying the paste-forming resin involves mixing said paste-forming resin AB with at least one pigment, homogenisation of the mixture with a shearing force to obtain a pigment paste and mixing said pigment paste with a non-pigmented or white pigmented dye which contains an organic binder for dye.

EFFECT: obtaining a pigment paste which contains a pigment-forming resin which is compatible with most types of pigments and binding resins.

12 cl, 4 tbl, 7 ex