As the binder in order to produce the abrasive and binder the abrasive which contains the said dispersed liquid as a use of the water dispersed liquid, the abrasive paper, the abrasive cloth and the ri polishing pad null

摘要

Aqueous polymer dispersions used as binders for abrasive materials contain dispersed polymer with a glass transition point of -20 to +35[deg]C, obtained by radical emulsion polymerisation in presence of a polymer based on anhydride-forming unsaturated mono- and/or di-carboxylic acids, esters of such acids with hydroxy-amines, and optionally other monomers. The use of aqueous polymer dispersions (PD) as binders for the production of abrasive materials. Dispersions (PD) contain dispersed particles of polymer(s) (A1) with a glass transition point (Tg) of -20 to +35[deg]C, obtained by radical emulsion polymerisation in presence of a polymer (A2) which is derived from (a) 50-99.5 wt% unsaturated mono- and/or di-carboxylic acid(s) which can form anhydride groups, (b) 0.5-50 wt% unsaturated compound(s) selected from esters of unsaturated monocarboxylic acids and half-esters or diesters of unsaturated dicarboxylic acids with hydroxy-amine(s), and (c) up to 20 wt% other comonomer(s). Independent claims are also included for abrasive materials, abrasive paper, abrasive cloth and abrasive wool containing PD as binder.