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1. 发明授权

EP3159363B1 METHACRYLIC RESIN COMPOSITION AND MOLDED ARTICLE OF SAME 有权
公开(公告)号：EP3159363B1
公开(公告)日：2019-07-24
申请号：EP15811110.4
申请日：2015-06-22
申请人： Sumitomo Chemical Co., Ltd
发明人： YAMAMORI, Akihiro , KADOYA, Hidenori , YAMAZAKI, Kazuhiro
IPC分类号： C08F20/14 , C08F2/02 , C08L33/12

2. 发明公开

EP3159363A1 METHACRYLIC RESIN COMPOSITION AND MOLDED ARTICLE OF SAME 审中-公开
标题翻译：甲基丙烯酸树脂组合物及其成型制品
公开(公告)号：EP3159363A1
公开(公告)日：2017-04-26
申请号：EP15811110.4
申请日：2015-06-22
申请人： Sumitomo Chemical Co., Ltd
发明人： YAMAMORI, Akihiro , KADOYA, Hidenori , YAMAZAKI, Kazuhiro
IPC分类号： C08F20/14 , C08F2/02
CPC分类号： C08L33/12 , C08F2/02 , C08F20/14 , C08L2201/08 , C08L2201/10 , C08L2205/025 , C08L2205/06 , C08F220/14
摘要： In order to provide a methacrylic resin composition that maintains all of physical properties such as excellent solvent resistance, heat resistance, mechanical strength, and stringing resistance, and has particularly excellent fluidity and also heat stability, the present invention provides a methacrylic resin composition that satisfies conditions (I) through (IV) and includes two types of methacrylic resins having mutually different peak molecular weights. (I) The weight ratio of methyl methacrylate units in the methacrylic resin is greater than 98.5 wt% with respect to 100 wt% of all monomer units. (II) The HP value indicating the higher peak molecular weight satisfies the expression 180,000 ≤ HP ≤ 220,000. (III) The LP value indicating the lower peak molecular weight satisfies the expression 24,000 ≤ LP ≤ 35,000. (IV) The PR value indicated by a/b, where a is the value indicating peak height in the HP and b is the value indicating peak height in the LP on a differential molecular weight distribution curve, satisfies the expression 1.32 ≤ PR ≤ 1.60.
摘要翻译：为了提供保持所有物理性能例如优异的耐溶剂性，耐热性，机械强度和耐拉丝性并且具有特别优异的流动性和热稳定性的甲基丙烯酸树脂组合物，本发明提供满足以下条件的甲基丙烯酸树脂组合物：条件（I）至（IV）并且包括具有相互不同的峰分子量的两种类型的甲基丙烯酸树脂。（I）甲基丙烯酸类树脂中甲基丙烯酸甲酯单元的重量比相对于全部单体单元的100重量％大于98.5重量％。（II）表示较高峰分子量的HP值满足180,000≤HP≤220,000的表达式。（III）表示较低峰值分子量的LP值满足表达式24,000≤LL≤35,000。（IV）由a / b表示的PR值，其中a是表示HP中峰高度的值，b是差示分子量分布曲线上LP中峰高度的值，满足表达式1.32≤PR≤1.60 。

3. 发明公开

EP2927249A1 METHOD FOR PRODUCING METHACRYLIC POLYMER COMPOSITION, AND MOLDED ARTICLE 审中-公开
标题翻译： VERFAHREN ZUR HERSTELLUNG EINER METHACRYLPOLYMERZUSAMMENSETZUNG UNDFORMKÖRPER
公开(公告)号：EP2927249A1
公开(公告)日：2015-10-07
申请号：EP13860754.4
申请日：2013-11-29
申请人： Sumitomo Chemical Co., Ltd
发明人： YAMAMORI, Akihiro , WAKE, Takao , YAMAZAKI, Kazuhiro
IPC分类号： C08F20/18 , C08F2/01 , C08F2/02
CPC分类号： C08F20/14 , C08F2/001 , C08F2/02 , C08F2/38 , C08F220/14 , C08L2205/025 , C09D133/08 , C08L33/12 , C08L33/08
摘要： A method for producing a methacrylic polymer composition, which comprises
a first polymerization step wherein a raw material composition A comprising a raw material monomer A containing no less than 50% by weight of methyl methacrylate, a polymerization initiator A, and a chain transfer agent A is supplied into a first complete mixing type reactor through a supply port of the reactor, and the raw material composition A is subjected to a continuous bulk polymerization in the first complete mixing type reactor, and a resulting intermediate composition is withdrawn through an effluent port of the first complete mixing type reactor; and
a second polymerization step wherein a raw material composition B comprising a raw material monomer B containing no less than 50% by weight of methyl methacrylate, a polymerization initiator B, and a chain transfer agent B, and the intermediate composition withdrawn in the first polymerization step are supplied into a second complete mixing type reactor through a supply port of the reactor, and the raw material composition B and the intermediate composition are further subjected to a continuous bulk polymerization in the second complete mixing type reactor, and a resulting methacrylic polymer composition is withdrawn through an effluent port of the second complete mixing type reactor;
wherein the formulae (I), (II), (III), (IV) and (V) are satisfied.
摘要翻译：一种生产甲基丙烯酸类聚合物组合物的方法，其包括第一聚合步骤，其中将包含不少于50重量％甲基丙烯酸甲酯的原料单体A，聚合引发剂A和链转移剂A的原料组合物A 通过反应器的供给口供入第一完全混合型反应器，原料组合物A在第一完全混合型反应器中进行连续本体聚合，所得中间体组合物通过第一完全混合型反应器; 和第二聚合步骤，其中包含含有不少于50重量％的甲基丙烯酸甲酯的原料单体B，聚合引发剂B和链转移剂B的原料组合物B和在第一聚合中取出的中间体组合物通过反应器的供给口将步骤供给到第二完全混合型反应器中，并且将原料组合物B和中间组合物进一步在第二完全混合型反应器中进行连续本体聚合，得到的甲基丙烯酸系聚合物组合物通过第二完全混合型反应器的排出口排出; 其中满足式（I），（II），（III），（IV）和（V）。

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