| 摘要 |
PURPOSE:The titled tape for coating for bent surface, having improved adhesivity and heat resistance free from paste residue in repeated release, obtained by forming a pressure-sensitive adhesive layer consisting of a specific crosslinked polyether and an adhesion imparting resin in a specific ratio on one side of a crepe paper substrate. CONSTITUTION:(A) 100pts.wt. polyether having a main chain which contains one or more hydrolyzable silicon groups (e.g., hydride group bonded to silicon group) and a repeating unit substantially shown by the formula -R-O- (R is bifunctional alkyl, preferably 1-4C alkylene) and (B) 40-150pts.wt. adhesion imparting resin (e.g., terpene-phenol resin, etc.) are dissolved in a solvent such as toluene, etc., applied to one side of a crepe paper substrate using an acrylic impregnating agent and partially crosslinked at 120 deg.C for 1 - several minutes to give the aimed tape. The coating surface of the substrate is preferably subjected to corona discharge, etc., and a long-chain alkyl group-containing releasant is used on the back.
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