RESIN MODIFIER AND RESIN COMPOSITION CONTAINING THE RESIN MODIFIER

摘要

PROBLEM TO BE SOLVED: To provide a resin modifier which can impart high weatherability, impact resistance and impact resistance at low temperatures, and excellent molding external appearance to resins and uses a plant as a raw material in consideration of the environment. SOLUTION: The resin modifier is composed of a rubbery polymer obtained by hydrogenating a natural polyisoprenoid or its modification product. The rubbery polymer may be a polymer obtained by reacting the natural polyisoprenoid with hydrogen in a solvent in the presence of a hydrogenation catalyst. The degree of hydrogenation of the natural polyisoprenoid in the rubbery polymer is preferably≥50%. The rubbery polymer preferably has a weight average molecular weight of≥200,000 and a molecular weight distribution of≥2.0. COPYRIGHT: (C)2006,JPO&NCIPI