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1. 发明申请

US20160326287A1 METHOD FOR MANUFACTURING (METH)ACRYLIC RESIN COMPOSITION 有权
标题翻译：制备（甲基）丙烯酸树脂组合物的方法
公开(公告)号：US20160326287A1
公开(公告)日：2016-11-10
申请号：US15108455
申请日：2014-12-26
申请人： KURARAY CO., LTD.
发明人： Hiroshi OZAWA , Yasuhito KITADE , Shouji TANAKA
IPC分类号： C08F220/14
CPC分类号： C08F220/14 , C08F2/00 , C08F2/02 , C08F2/38 , C08F20/14 , C08F120/14 , C08F2400/02
摘要： A method for producing a (meth)acrylic resin composition, the method comprises the steps of continuously feeding methyl methacrylate and the other materials into a tank reactor while controlling each of the amounts thereof, performing bulk polymerization in the tank reactor to obtain a reaction product, recovering a mixture (A) containing methyl methacrylate and the others from the reaction product, and continuously feeding the mixture (A) into the tank reactor, wherein each of the amounts of methyl methacrylate and the others being fed into the tank reactor are controlled on the basis of the amount of the mixture (A) being fed into the tank reactor and the proportions of methyl methacrylate and the others in the mixture (A), and the perfect-mixing time of the tank reactor, the half life of a radical polymerization initiator at a temperature equal to the temperature inside the tank reactor, the agitation power of the tank reactor, the mean residence time of a reaction starting material in the tank reactor, and the concentration of the radical polymerization initiator in the reaction starting material satisfy a particular relationship.
摘要翻译：一种（甲基）丙烯酸树脂组合物的制造方法，其特征在于，包括以下步骤：将甲基丙烯酸甲酯和其他物质连续供给到槽式反应器中，同时控制其中的每一种，在釜式反应器中进行本体聚合，得到反应产物从反应产物中回收含有甲基丙烯酸甲酯和其它物质的混合物（A），并将混合物（A）连续进料到罐式反应器中，其中将每种进料到反应器中的甲基丙烯酸甲酯和其他量进行控制基于进料槽反应器中混合物（A）的量和混合物（A）中的甲基丙烯酸甲酯和其它物质的比例以及罐式反应器的完全混合时间，a 自由基聚合引发剂，其温度等于罐式反应器内的温度，罐式反应器的搅拌功率，反应起始原料的平均停留时间在反应釜中，反应起始原料中的自由基聚合引发剂的浓度满足特定关系。

2. 发明申请

US20170226237A1 METHOD FOR PRODUCING (METH)ACRYLIC RESIN COMPOSITION 审中-公开
公开(公告)号：US20170226237A1
公开(公告)日：2017-08-10
申请号：US15501586
申请日：2015-08-06
申请人： KURARAY CO., LTD.
发明人： Yasuhito KITADE , Hiroshi OZAWA , Shouji TANAKA
IPC分类号： C08F6/28 , C08K5/09 , C08K5/101
CPC分类号： C08F6/28 , C08F2/02 , C08F2/38 , C08F6/005 , C08F20/14 , C08J3/203 , C08K5/09 , C08K5/101 , C08F220/14 , C08L33/12
摘要： A (meth)acrylic resin composition is obtained by a method comprising: continuously feeding a raw material solution essentially comprising methyl methacrylate, a chain transfer agent and a radical polymerization initiator, and optionally comprising an acrylic acid alkyl ester in a mass ratio of the acrylic acid alkyl ester to the methyl methacrylate of 0/100 to 20/80 into a tank reactor to allow bulk polymerization to proceed in the tank reactor at a polymerization conversion ratio of 40 to 70% by mass to obtain a reaction product while continuously discharging the reaction product from the tank reactor; heating the discharged reaction product with a heat exchanger; removing volatile matter from the heated reaction product; filtrating a liquid additive through a filter; and adding the filtrated liquid additive to the reaction product from which the volatile matter has been removed.

3. 发明申请

US20180030164A1 PROCESS FOR PRODUCING (METH)ACRYLIC RESIN COMPOSITION 审中-公开
公开(公告)号：US20180030164A1
公开(公告)日：2018-02-01
申请号：US15553714
申请日：2016-02-26
申请人： KURARAY CO., Ltd.
发明人： Hiroshi OZAWA , Yasuhito KITADE , Shouji TANAKA
IPC分类号： C08F6/28 , C08F220/14
CPC分类号： C08F6/28 , C08F2/02 , C08F6/10 , C08F20/14 , C08F220/14 , C08F2400/00 , C08L33/12 , C08F220/18
摘要： A method for producing a (meth)acrylic resin composition, comprising: continuously feeding reaction starting materials to a tank reactor, the reaction starting materials comprising a polymerizable monomer component, a chain transfer agent and a radical polymerization initiator, the polymerizable monomer component comprising 50 to 100% by mass of methyl methacrylate, 0 to 20% by mass of an acrylic acid alkyl ester and 0 to 30% by mass of an additional monomer; conducting bulk polymerization of the polymerizable monomer component at a polymerization conversion ratio of 40 to 70% by mass to obtain a liquid containing a (meth)acrylic resin; continuously feeding the resulting liquid to a vented extruder to separate volatile component from the (meth)acrylic resin; conducting distillation using an atmospheric distillation column to separate the volatile component into a high boiling fraction (C1) and a low boiling fraction (A1); and conducting distillation using a vacuum distillation column having a pressure of −50 kPaG to −101 kPaG at the top of the vacuum distillation column to separate the high boiling fraction (C1) into a high boiling fraction (C2) and a low boiling fraction (A2); reusing the low boiling fraction (A1) and the low boiling fraction (A2) as part of the reaction starting materials.

4. 发明申请

US20160347879A1 PRODUCTION METHOD OF (METH)ACRYLIC RESIN COMPOSITION 有权
标题翻译：（甲基）丙烯酸树脂组合物的生产方法
公开(公告)号：US20160347879A1
公开(公告)日：2016-12-01
申请号：US15116676
申请日：2015-02-06
申请人： KURARAY CO., LTD.
发明人： Yasuhito KITADE , Hiroshi OZAWA , Shouji TANAKA
IPC分类号： C08F20/68
CPC分类号： C08F20/68 , C08F2/02 , C08F20/14 , C08F120/14 , C08F220/14 , C08F220/18 , C08L33/06
摘要： A (meth)acrylic resin composition is obtained by a method that comprises: preparing a liquid starting material (A) comprising methyl methacrylate, an acrylic acid alkyl ester and a chain transfer agent, having a mass ratio of the acrylic acid alkyl ester to the methyl methacrylate of 0/100 to 20/80, and having a dissolved oxygen concentration of not more than 50 ppm, preparing a liquid starting material (B) comprising a radical polymerization initiator, a polymerization inhibitor and methyl methacrylate, and having been maintained at a temperature of not more than 10° C. in the presence of oxygen, continuously feeding the liquid starting material (A) and the liquid starting material (B) into a tank reactor, allowing bulk polymerization to proceed in the tank reactor at a polymerization conversion ratio of 40 to 70% by mass to give a reaction product, and continuously discharging the reaction product from the tank reactor.
摘要翻译：通过以下方法获得（甲基）丙烯酸树脂组合物：包括：制备包含甲基丙烯酸甲酯，丙烯酸烷基酯和链转移剂的液体原料（A），其具有丙烯酸烷基酯与甲基丙烯酸甲酯为0/100至20/80，溶解氧浓度不大于50ppm，制备包含自由基聚合引发剂，阻聚剂和甲基丙烯酸甲酯的液体原料（B），并保持在在氧气存在下不超过10℃的温度，将液体原料（A）和液体原料（B）连续进料到罐式反应器中，从而允许本体聚合在釜式反应器中进行聚合转化率为40〜70质量％，得到反应产物，并从反应器中连续排出反应产物。

5. 发明申请

US20180009913A1 PROCESS FOR PRODUCING (METH)ACRYLIC RESIN COMPOSITION 有权
公开(公告)号：US20180009913A1
公开(公告)日：2018-01-11
申请号：US15539919
申请日：2015-12-25
申请人： KURARAY Co., Ltd.
发明人： Hiroshi OZAWA , Yasuhito KITADE , Shouji TANAKA
IPC分类号： C08F6/00
CPC分类号： C08F6/001 , C08F2/02 , C08F2/38 , C08F2/40 , C08F6/005 , C08F6/26 , C08F20/18 , C08J11/02 , C08L33/12
摘要： A method for producing a (meth)acrylic resin composition, the method comprising continuously feeding a polymerizable monomer component comprising 50 to 100% by mass of methyl methacrylate, 0 to 20% by mass of an acrylic acid alkyl ester and 0 to 30% by mass of an additional monomer, a chain transfer agent, and a radical polymerization initiator to a tank reactor; conducting bulk polymerization of the polymerizable monomer component at a polymerization conversion ratio of 40 to 70% by mass to obtain a liquid containing a (meth)acrylic resin; continuously feeding the liquid to a vented extruder to separate a volatile component from the (meth)acrylic resin; continuously feeding the separated volatile component to a distillation column to obtain a fraction containing methyl methacrylate; adding a polymerization inhibitor to the fraction; and reusing the fraction which contains the polymerization inhibitor as part of the polymerizable monomer component.

6. 发明申请

US20170298157A1 METHOD FOR PRODUCING (METH)ACRYLIC RESIN 审中-公开
公开(公告)号：US20170298157A1
公开(公告)日：2017-10-19
申请号：US15515901
申请日：2015-09-30
申请人： KURARAY CO., LTD.
发明人： Hiroshi OZAWA , Yasuhito KITADE , Shouji TANAKA
IPC分类号： C08F20/18 , B01J19/02 , C08F2/00 , C07C321/04 , B29C47/76 , G01N33/52 , B01J19/00 , C08F4/38
CPC分类号： C08F20/18 , B01J19/0066 , B01J19/02 , B29C48/76 , C07C321/04 , C08F2/001 , C08F2/01 , C08F2/38 , C08F4/38 , C08F20/00 , G01N33/52
摘要： A method for producing (meth) acrylic resin at a low cost while maintaining high transparency even in long-term production using a polymerization apparatus is provided. A (meth) acrylic resin is obtained by the method comprising storing a thiol chain transfer agent in a tank made of an austenitic stainless steel with a Mo content of 0.5 to 7.0% by mass, transferring the thiol chain transfer agent to a polymerization reactor made of an austenitic stainless steel with a Mo content of 0.5 to 7.0% by mass via a pipe made of an austenitic stainless steel with a Mo content of 0.5 to 7.0% by mass, radical-polymerizing methyl methacrylate in the polymerization reactor to obtain a reaction product, and then removing an unreacted material from the reaction product.

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