DIORGANOPOLYSILOXANE CONTAINING THIOALKYL ACRYLATE FUNCTIONAL GROUP

摘要

The present invention relates to a linear or cyclic diorganopolysiloxane containing thioalkyl acrylate groups bonded by an SiC bond to the silicon chain and chosen from those of formulae: …… and …… X being H or methyl. …The diorganopolysiloxanes according to the invention can be prepared by radical addition of a mercaptoalkanol with the corresponding vinylated diorganopolysiloxane, followed by a transesterification by means of an acrylic acid ester. …The diorganopolysiloxanes according to the invention can be crosslinked under UV or under an electron beam and can be employed for sheathing optical fibres.