Patent ID: 8299168
Filing Date: 2012-10-30
Classification: C08G,C08K,C09D

Abstract:
1. An aqueous formulation comprising A) a copolymer a1) and a polyorganosiloxane a2) containing hydroxyl groups; B) inorganic particles comprising silica which have an average particle size (z-mean), as determined by means of dynamic light scattering in dispersion, of less than 200 nm, wherein said inorganic particles are optionally surface modified, wherein said inorganic particles are in colloidally disperse form in organic solvents or in water, and wherein said inorganic particles are stabilized against reagglomeration by the polyorganosiloxane a2); and C) water wherein said copolymer a1) is built up from I) a hydroxy-functional hydrophobic polymer containing as builder monomers II) a hydroxy-functional hydrophilic polymer containing as builder components wherein said polyorganosiloxane a2) is selected from the group consisting of (1) compounds of formula (I) wherein X is an aliphatic, optionally branched C R is a CH(OH)Y group, wherein R n is an integer from 4 to 12 (2) compounds of formula (V) wherein m is an integer from 5 to 15; Z is H or methyl; and n and o are, identically or differently, integers from 1 to 12, and (3) a compound of formula (VI) wherein m is an integer from 5 to 15; and y is an integer from 2 to 4.