Organic polysiloxanes containing reactive silicon groups and surface treatment agents

Abstract

Organopolysiloxanes containing reactive silica groups, represented by the following structural formula (1) with two silica atoms bonded to the ends of a linear organopolysiloxane in one molecule, will impart a coating with excellent water-repellent, hydrophobic, and durable properties. (R1, R2, and R5 represent hydrogen atoms, aliphatic saturated hydrocarbon groups with 1 to 10 carbon atoms, or aryl groups with 6 to 10 carbon atoms, respectively; R3 and R4 represent aliphatic saturated hydrocarbon groups with 1 to 10 carbon atoms, or aryl groups with 6 to 10 carbon atoms, respectively; Z represents oxygen atoms, alkyl groups with 2 to 12 carbon atoms, or alkyl ...