Patent ID: 6590035
Filing Date: 2003-07-08
Classification: C08L,D06M

Abstract:
A water repellent composition comprising the following polymer (A) and the following polymer (B), wherein the polymer (A) and the polymer (B) are not present in the same particles:Polymer (A): an addition polymer comprising at least 60 mass % of polymerized units of the following polymerizable monomer (a) and at most 40 mass % (inclusive of 0 mass %) of polymerized units of the following polymerizable monomer (b), and polymerized units of a polymerizable monomer (c), wherein the total of the polymerized units of the polymerizable monomer (a) and the polymerized units of the polymerizable monomer (b) is at least 70 mass %; and Polymer (B): an addition polymer comprising less than 60 mass % (inclusive of 0 mass %) of polymerized units of the polymerizable monomer (a) and at least 30 mass % of polymerized units of the polymerizable monomer (c), and, if necessary, polymerized units of a polymerizable monomer other than the polymerizable monomers (a) and (c), wherein the total of the polymerized units of the polymerizable monomer (a) and the polymerized units of the polymerizable monomer (c) is at least 50 mass %: Polymerizable monomer (a): a (meth)acrylate having a polyfluoroalkyl group; Polymerizable monomer (b): a (meth)acrylate having a long chain alkyl group and not having a polyfluoroalkyl group; and Polymerizable monomer (c): a polymerizable monomer other than the polymerizable monomers (a) and (b), having a SP value of less than 10.