| http://www.w3.org/ns/prov#value | - The linear or branched organopolysiloxanes suitable as liquid precursors for the method of the present invention include liquids of the general formula W-A-W, where A is a polydiorganosiloxane chain having siloxane units of the formula R???sSiO4-s/2 in which each R??? independently represents an alkyl group having from 1 to 10 carbon atoms, an alkenyl group such as vinyl, propenyl and/or hexenyl g
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