prov:value
| - Such polysiloxanes are chain or cyclic siloxane polymers expressed by the general formula ##STR1## (wherein n represents 3-10,000), and R1 and R2 represent the same or different kinds of residual groups capable of being combined to Si, and above all, those in which one kind, two kinds or more of hydrogen, hydrocarbon residual group such as alkyl group, aryl group, etc., halogen, alkoxy group, aryl
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