Patent ID: 8338507
Filing Date: 2012-12-25
Classification: C08F,C08K,C08L

Abstract:
1. A method comprising contacting a phosphinic acid or salt thereof and/or a phosphonic acid or salt thereof with a fluorine compound for wetting of the fluorine compound; wherein the phosphinic acid or salt thereof is of the formula (I) where Rf 1 and Rf 2 are each, independently of one another, branched or unbranched alkyl chains of the formula C n F 2n−z+1 H z , where n=2-16, z=0-3, and in which X=H, alkali metal or [NR 4 ] + , where R in each case, independently of one another, denotes H, straight-chain or branched alkyl having 1-20 C atoms, saturated cycloalkyl having 3-7 C atoms aryl or alkyl-aryl, which are optionally substituted by alkyl groups having 1-6 C atoms, and one or more R is optionally partially or fully substituted by halogen; and wherein the phosphonic acid or salt thereof is of the formula (II) where Rf 1 is as defined above.