Patent ID: 6248915
Filing Date: 2001-06-19
Classification: C08G

Abstract:
A method of producing reactive silicon group-containing polyether oligomers which comprises reacting(a) a polyether oligomer whose main chain is a polyether and which contains, in each molecule, at least one unsaturated group represented by the general formula (1):H.sub.2 C.dbd.C(R.sup.1)--R.sup.2 --O-- (1)(in the formula, R.sup.1 is a hydrocarbon group containing not more than 10 carbon atoms and R.sup.2 is a divalent organic group containing 1 to 20 carbon atoms and one or more species selected from the group consisting of hydrogen, oxygen and nitrogen atoms as a constituent atom) or the general formula (2):HC(R.sup.1).dbd.CH--R.sup.2 --O-- (2)(in the formula, R.sup.1 is a hydrocarbon group containing not more than 10 carbon atoms and R.sup.2 is a divalent organic group containing 1 to 20 carbon atoms and one or more species selected from the group consisting of hydrogen, oxygen and nitrogen atoms as a constituent atom) on a side chain or at a terminuswith (b) a reactive silicon group-containing compound in the presence of (c) a group VIII transition metal catalyst to introduce the reactive silicon group into said polyether oligomer (a),wherein the reaction is carried out in the presence of (d) a sulfur compound.