| 摘要 |
A METHACRYLIC RESIN COMPOSITION HAVING EXCELLENT TRANSPARENCY, APPEARANCE, WEATHERABILITY, GLOSS, IMPACT RESISTANCE AND PROCESSABILITY, WHICH COMPRISES A METHACRYLIC RESIN AND A GRAFT COPOLYMER HAVING A MULTILAYER STRUCTURE PREPARED BY POLYMERIZING A MONOMER COMPONENT COMPRISING AN ALKYL METHACRYLATE SUCH AS METHYL METHACRYLATE AS A MAIN COMPONENT IN THE PRESENCE OF A CHAIN TRANSFER AGENT TO FORM AN INNERMOST LAYER OF A CROSSLINKED METHACRYLIC POLYMER, POLYMERIZING A MONOMER COMPONENT COMPRISING AN ALKYL ACRYLATE SUCH AS BUTYL ACRYLATE AS A MAIN COMPONENT IN THE PRESENCE OF THE INNERMOST LAYER POLYMER TO FORM AN INTERMEDIATE LAYER AND SUBSEQUENTLY POLYMERIZING A MONOMER COMPONENT COMPRISING AN ALKYL METHACRYLATE SUCH AS METHYL METHACRYLATE AS A MAIN COMPONENT TO FORM AN OUTERMOST LAYER ON THE INTERMEDIATE LAYER.
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