| http://www.w3.org/ns/prov#value | - at least one of organopolysiloxanes having a recurring unit represented by the following General Formula (I): ##STR3## wherein R1 is a group selected from the group consisting of alkyl groups containing 1 to 7 carbon atoms, R2 is a group selected from the group consisting of non-substituted or fluorine-substituted alkyl groups containing 1 to 4 carbon atoms, phenyl group and vinyl group, R1 and R2
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