BASECOAT SILICONE COMPOSITION FOR RELEASE PAPER OR RELEASE FILM, AND TREATED PAPER OR TREATED FILM

摘要

PURPOSE: A basecoat silicone composition is provided to form a film with excellent adhesive property to various substrate surface such as papers or plastic films. CONSTITUTION: A basecoat silicone composition is coated on a paper or plastic film substrate and exposed to UV to form a primer layer which will be overlaid with a cured coating of a release silicone composition to form a release paper or film. The basecoat silicone composition comprises: (A) an adhesion-providing component which is (A1) an organopolysiloxane containing at least two silicon-bonded alkenyl-containing substituent groups in a molecule, having an alkenyl content of 0.3 to 2.0 mol/100 g, and having a structure that two siloxane units in which the alkenyl-containing substituent group is bonded to silicon atom are linked directly or via up to 3 intervening siloxane units in which said substituent group is not bonded to silicon atom, the organopolysiloxane having a viscosity of less than 0.04 Pa-s at 25deg.C, and/or (A2) a compound containing in a molecule at least one substituent group of 2 to 10 carbon atoms having a carbon-carbon unsaturated bond (double or triple bond) as functionality and at least one substituent group having a group capable of addition reaction and/or condensation reaction with an alkenyl and/or SiH group; and (B) an amount of an optional organic solvent.