Silalkylene oligosiloxane surface treating agents and process for their preparation

摘要

A silalkylene oligosiloxane described by general formula where R<1> is a monovalent hydrocarbon group having at least 2 carbon atoms that does not have aliphatic unsaturated bonds, each R<2> is an independently selected monovalent hydrocarbon group having 1 to 10 carbon atoms that does not have aliphatic unsaturated bonds, R<3> is an alkylene group having at least 2 carbon atoms, R<4> is an alkyl group, a is an integer of 0 to 2 and b is an integer of 1 to 3, with the proviso that a+b is an integer of 1 to 3, c is an integer of 1 to 3, and n is an integer of 0 or 1; a process for making the silalkylene oligosiloxane and the use thereof as a surface treatment agent.