RADIATION-CURABLE STRIPPABLE TREATING AGENT

摘要

PURPOSE:To provide the titled treating agent which has well-balanced properties between release properties and adhesion and can be thinly coated without using any solvent, consisting of a strippable oligomer which is an epoxy group-contg. polyorganosiloxane modified with the introduced group of a specified acryloyl compd. CONSTITUTION:Not more than one equivalent (based on the quantity of epoxy group) of an acryloyl compd. [e.g. (meth)acrylic acid] is added to an epoxy group-contg. polyorganosiloxane which is a liquid at room temp. and has an MW of 5X10<2>-2X10<4> and an epoxy equivalent of 1.5X10<2>-10<4>. The mixture is reacted to obtain a modified polyorganosiloxane wherein the introducing group of the acryloyl compd. is grafted through the epoxy group. A 13C or higher long-chain alkyl isocyanate (e.g. octadecyl isocyanate) is added thereto and is reacted with the active hydrogen of the introduced group of the acryloyl compd. to obtain the titled treating agent having a viscosity of 10<5>cP or below (30 deg.C) composed of a strippable oligomer modified with the introduced group of the long-chain alkyl isocyanate.