| 摘要 |
PURPOSE:To provide a release composition composed of a synthetic resin and an addition-curable polyorganosiloxane and capable of producing a product, excellent in releasability and free from an effect on residual adhesion by lamination and/or sheet forming on a base material. CONSTITUTION:With (A) 100 pts.wt. synthetic resin, preferably thermoplastic resin, (B) 3-20 pts.wt. composition composed of addition-curable polyorganosiloxanes, preferably capable of curing into a gel state, e.g. composition composed of (B1) a polyorganosiloxane having >=0.7 vinyl group bonded to Si per one molecule on the average and the remainder univalent hydrocarbon bonded to Si containing no aliphatic unsaturated bond and showing 50-100000CP viscosity at 25 deg.C, (B2) a polyorganohydrogensiloxane containing >2H bonded to Si in one molecule and (B3) a platinum-based catalyst is blended to obtain the objective release composition. Releasability is given by lamination and/or sheet forming of the above-mentioned composition on a base material. |
