Organosiloxane-modified polyoxyalkylene polymer and / or (meth) acrylic acid ester polymer, and curable composition containing the polymer

摘要

PPROBLEM TO BE SOLVED: To provide a polyoxyalkylene polymer and/or a (meth)acrylate polymer excellent in curability and tensile properties and useful for sealants and adhesives and to provide a curable composition containing the polymers. PSOLUTION: What is disclosed is a polyoxyalkylene polymer and/or a (meth)acrylate polymer having a group (a) represented by formula (1): -(SiRSP1/SPSB2/SBO)SBn/SBSiRSP1/SPSB2/SB-CRSP2/SPRSP3/SP-CHRSP4/SP-RSP5/SP-SiXSB3/SBand a group (b) represented by formula (2): -(SiRSP1/SPSB2/SBO)SBn/SBSiRSP1/SPSB2/SB-CRSP4/SP(CHRSP2/SPRSP3/SP)-RSP5/SP-SiXSB3/SBin an (a)/(b) ratio of 99/1 to 75/25 (in an average molar ratio). In formulae (1) and (2), RSP1/SPis a hydrocarbon group or a triorganosiloxy group; RSP2/SP, RSP3/SP, and RSP4/SPare each a hydrogen atom or a hydrocarbon group; RSP5/SPis a divalent hydrocarbon group or a direct bond; X is a hydroxy group or a hydrolyzable group; and n is an integer of 0 to 100. PCOPYRIGHT: (C)2007,JPO&INPIT