Patent ID: 7319119
Filing Date: 2008-01-15
Classification: A61K,A61Q,C04B,D21H

Abstract:
1. A process for treating leather or sizing paper, leather and paper being a substrate, comprising contacting the surface of said substrate with an oil-in-water emulsion, comprising (i) 100 parts by weight of a polydimethylsiloxane (P) having aminoalkyl groups and having an amine number of at least 0.1 meq/g of polydimethylsiloxane (P), and comprising units of the formula I  in which R R are optionally halogen-substituted alkyl radicals having 1-40 carbon atoms, R R R R R x is 0 or a value from 1 to 40, y is 1 or 2, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3 and a+b on average is from 1.5 to 2.5, not more than 9 mol % of the radical R (ii) at least one MQ silicone resin, (iii) at least one protonating agent, (iv) water, and (v) not more than 5 parts by weight of emulsifier(s), and drying the substrate.