申请人:——
公开号:US20040106732A1
公开(公告)日:2004-06-03
Provided are a thermoplastic resin composition which is excellent in oil resistance, heat resistance, weatherability, impact resistance, transparency, and moldability, and which can be produced economically, an elastomer composition with low hardness and high tensile strength which is excellent in oil resistance and compression set, and a molded object produced by molding the thermoplastic resin composition or elastomer composition. The composition is produced by compounding a thermoplastic resin or an elastomer with a block copolymer having at least one methacrylic ester polymer block and at least one acrylic ester polymer block.
Also provided are a process for producing a methacrylic ester-acrylic ester-methacrylic ester block copolymer which requires hardly any purification, which is excellent in heat resistance and weatherability, and in which the molecular weight and the molecular-weight distribution are controlled, and a methacrylic ester-acrylic ester-methacrylic ester block copolymer produced by the process.
提供了一种热塑性树脂组合物,具有优异的耐油性、耐热性、耐候性、抗冲击性、透明度和成型性,且可经济生产;一种低硬度、高拉伸强度的弹性体组合物,具有优异的耐油性和压缩回弹性;以及由该热塑性树脂组合物或弹性体组合物成型而成的成型物。该组合物通过将热塑性树脂或弹性体与至少具有一个甲基丙烯酸酯聚合物块和至少一个丙烯酸酯聚合物块的嵌段共聚物混合制备而成。
同时提供了一种制备甲基丙烯酸酯-丙烯酸酯-甲基丙烯酸酯嵌段共聚物的方法,该方法几乎不需要纯化,具有优异的耐热性和耐候性,并且分子量和分子量分布可控;以及由该方法制备的甲基丙烯酸酯-丙烯酸酯-甲基丙烯酸酯嵌段共聚物。