Patent ID: 8586184

Claim:
A masonry treatment agent consisting essentially of: (1) a fluorine-containing polymer, and (2) a liquid medium, wherein the masonry treatment agent is in the form of a solution, and wherein the fluorine-containing polymer comprises: (A) repeating units derived from a fluorine-containing acrylate monomer, and (B) repeating units derived from an amino group-containing monomer, wherein the fluorine-containing polymer is water-soluble, and the fluorine-containing acrylate monomer (A) is of the formula: CH 2 ═C(—X)—C(═O)—O—Y-Rf (I) wherein X is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a CFX 1 X 2 group (in which X 1 and X 2 are each a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom or an iodine atom), a cyano group, a linear or branched fluoroalkyl group having 1 to 21 carbon atoms, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted phenyl group, Y is a direct bond, an aliphatic group having 1 to 10 carbon atoms which optionally has an oxygen atom, an aromatic, cycloaliphatic or araliphatic group having 6 to 10 carbon atoms which optionally has an oxygen atom, a —CH 2 CH 2 N(R 1 )SO 2 — group (in which R 1 is an alkyl group having 1 to 4 carbon atoms) or a —CH 2 CH(OY 1 )CH 2 — group (in which Y 1 is a hydrogen atom or an acetyl group), and Rf is a linear or branched fluoroalkyl group having 1 to 7 carbon atoms, a linear or branched fluoroalkenyl group having 2 to 7 carbon atoms, or a fluoroether group having totally 1 to 200 repeating units selected from the group consisting of the repeating units: —C 3 F 6 O—, —C 2 F 4 O— and —CF 2 O—.