COMPOSITION FOR FILLING AGENT Russian patent published in 2004 - IPC

FIELD: organic chemistry, polymers. SUBSTANCE: invention relates to the composition for filling agent comprising: A) at least one polyacrylate with hydroxyl group consisting of 40-70 wt.-% of aromatic vinyl monomers and/or methylmethacrylate, 25-40 wt.-% of (meth)acrylic monomers with hydroxyl functional group, 0-20 wt. -% of (meth)acrylic monomers having at least 2 carbon atoms in alkyl group, and 0.5-2.5 wt.-% of (meth)acrylic acid wherein polyacrylate with hydroxyl group has hydroxyl number from 100 to 160 mg KOH/g of solid polymer, acid number from 5 to 20 mg KOH/g of solid monomer, molecular mass above 15 000 Da and Tg value from 25 to 100 C; B) at least one polyisocyanate compound; C) at least one pigment being the composition for filling agent exhibits the volume concentration of pigment from 40% to 80% with respect to the content of solid substances. The composition for filling agent can be used for polishing and non-polishing compositions hardened with different polyisocyanates and covered by usual upper covers. Filling agent can be used in the broad range of temperature and moisture values. EFFECT: valuable properties of composition. 9 cl, 4 tbl, 25 ex