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1. 发明授权

US10800912B2 Resin film 有权
公开(公告)号：US10800912B2
公开(公告)日：2020-10-13
申请号：US16066853
申请日：2016-12-27
申请人： KURARAY CO., LTD.
发明人： Hiroshi Ozawa , Yasuhito Kitade
IPC分类号： B32B27/30 , C08L33/08 , C08L33/10 , C08L33/12 , C08J5/18 , C08L33/06 , C08L101/00 , B29C45/00 , B29K433/04 , B29L7/00
摘要： A resin film comprising a resin (A) and a multi-layered particle (B), the multi-layered particle comprising a layer (a) made of a polymer comprising 80 to 99.99% by mass of a methyl methacrylate unit, 0.01 to 2% by mass of a crosslinkable monomer unit and 0 to 19.99% by mass of additional copolymerizable monomer units, a layer (b) made of a polymer comprising 70 to 99.8% by mass of an alkyl acrylate unit, 0.2 to 10% by mass of a crosslinkable monomer unit and 0 to 29.8% by mass of additional copolymerizable monomer units, and a layer (c) made of a polymer comprising 80 to 100% by mass of a methyl methacrylate unit and 0 to 20% by mass of additional copolymerizable monomer units, wherein an amount of the layer (a) is 5 to 15 parts by mass, an amount of the layer (b) is 40 to 60 parts by mass and an amount of the layer (c) is 35 to 50 parts by mass, based on 100 parts by mass of the total amount of the layer (a), the layer (b) and the layer (c), and the layer (a), the layer (b) and the layer (c) are arranged in this order from the center of the particle toward the outer surface of the particle, and a volume-based average particle diameter is 90 to 150 nm.

2. 发明授权

US10030081B2 Method for producing (meth)acrylic resin composition 有权
公开(公告)号：US10030081B2
公开(公告)日：2018-07-24
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 , C08K5/101 , C08K5/09
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. 发明授权

US09920142B2 Production method of (meth)acrylic resin composition 有权
公开(公告)号：US09920142B2
公开(公告)日：2018-03-20
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 , C08F2/02 , C08F220/14 , C08F220/18 , C08F20/14 , C08F120/14 , C08L33/06
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.

4. 发明授权

US09624327B2 Method for manufacturing (meth)acrylic resin composition 有权
公开(公告)号：US09624327B2
公开(公告)日：2017-04-18
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 , C08F20/14 , C08F2/02 , C08F120/14 , B01J19/18
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.

5. 发明授权

US10676606B2 Methacrylic resin composition and injection-molded article 有权
公开(公告)号：US10676606B2
公开(公告)日：2020-06-09
申请号：US16079420
申请日：2017-02-23
申请人： KURARAY CO., LTD.
发明人： Yasuhito Kitade , Hiroshi Ozawa
IPC分类号： C08L33/12 , C08F220/14 , C08F220/06 , C08F220/18 , C08L33/08
摘要： A methacrylic resin composition comprising not less than 90% by mass of a methacrylic resin, wherein the methacrylic resin comprises 95 to 100% by mass of methyl methacrylate monomer units and 0 to 5% by mass of acrylate monomer units, the methacrylic resin has an Mw of 57000 to 90000, Mw representing a weight-average molecular weight, and a ratio Mw/Mn of not more than 1.9, Mn representing a number-average molecular weight, the methacrylic resin composition has an absolute value of a difference between YI4 and YI2 of not more than 3, YI4 representing a yellow index at an optical path length of 200 mm of an injection-molded article obtained at a cylinder temperature of 280° C. in a molding cycle of 4 minutes, YI2 representing a yellow index at an optical path length of 200 mm of an injection-molded article obtained at a cylinder temperature of 280° C. in a molding cycle of 2 minutes, and meets a relationship represented by Formula (B) and Formula (C): R≥11 Formula (B) 0.8

6. 发明申请

US20150191562A1 METHOD FOR PRODUCING (METH)ACRYLIC RESIN COMPOSITION 有权
标题翻译：生产（甲基）丙烯酸树脂组合物的方法
公开(公告)号：US20150191562A1
公开(公告)日：2015-07-09
申请号：US14411653
申请日：2013-06-28
申请人： KURARAY CO., LTD.
发明人： Hiroshi Ozawa , Shouji Tanaka , Yasuhito Kitade
IPC分类号： C08F220/18 , G02B1/04
CPC分类号： C08F220/18 , C08F2/01 , C08F2/02 , C08F6/005 , C08F120/14 , C08F220/14 , G02B1/045 , C08L33/12 , C08F210/14
摘要： A method of producing a (meth)acrylic resin composition. The method comprises a step of continuously feeding a monomer mixture comprising 80 to 100% by mass of methyl methacrylate and 20 to 0% by mass of an alkyl acrylate to a tank reactor and bulk polymerizing the monomer mixture until obtaining a polymerization conversion of 40 to 70% by mass to prepare a reaction product; continuously discharging the reaction product, and heating the reaction product to 200° C. to 270° C. with a heater, and then separating the unreacted monomer with a extruder equipped with a vent; and transferring the separated unreacted monomer entrained by an inert gas flow to reuse the separated unreacted monomer as a raw material of the monomer mixture.
摘要翻译：一种（甲基）丙烯酸树脂组合物的制造方法。该方法包括将包含80〜100质量％的甲基丙烯酸甲酯和20〜0质量％的丙烯酸烷基酯的单体混合物连续进料到釜式反应器中并将该单体混合物本体聚合直至获得40〜 70质量％以制备反应产物; 连续排出反应产物，并用加热器将反应产物加热至270℃，然后用装有排气口的挤出机分离未反应的单体; 并转移被惰性气流夹带的分离的未反应单体，以重新使用分离的未反应单体作为单体混合物的原料。

7. 发明申请

US20150158963A1 METHOD FOR PRODUCING (METH)ACRYLIC RESIN COMPOSITION 审中-公开
标题翻译：生产（甲基）丙烯酸树脂组合物的方法
公开(公告)号：US20150158963A1
公开(公告)日：2015-06-11
申请号：US14411735
申请日：2013-06-28
申请人： KURARAY CO., LTD.
发明人： Hiroshi Ozawa , Shouji Tanaka , Yasuhito Kitade
IPC分类号： C08F220/18
CPC分类号： C08F220/18 , C08F2/01 , C08F2/02 , C08F2/38 , C08F6/005 , C08L33/12
摘要： A method of producing a (meth)acrylic resin composition. The method comprises a step of continuously feeding a reaction raw material including a chain transfer agent, a radical polymerization initiator and a monomer mixture comprising 80 to 100% by mass of methyl methacrylate and 20 to 0% by mass of an alkyl acrylate to a tank reactor through two or more feeding ports; a step of bulk polymerizing the monomer mixture in the tank reactor until a polymerization conversion of 40 to 70% by mass to prepare a reaction product; and a step of removing the monomer mixture from the reaction product. The perfect mixing time (θM [hr]) of the tank reactor, the half-life (τ1/2 [hr]) of the radical polymerization initiator at the temperature in the tank reactor, the stirring power (PV [kW/m3]) of the tank reactor, the mean residence time (θ [hr]) of the reaction raw material in the tank reactor, and the concentration (I [ppm]) of the radical polymerization initiator in the reaction raw material satisfy the following relationships: θM>τ1/2, and PV×θ×I×τ1/2
摘要翻译：一种（甲基）丙烯酸树脂组合物的制造方法。该方法包括将含有80〜100质量％的甲基丙烯酸甲酯和20〜0质量％的丙烯酸烷基酯的反应原料连续进料到包含链转移剂，自由基聚合引发剂和单体混合物的步骤，反应器通过两个或多个进料口; 在罐式反应器中本体聚合单体混合物直至聚合转化率为40〜70质量％以制备反应产物的步骤; 以及从反应产物中除去单体混合物的步骤。罐式反应器的完美混合时间（＆amp; M; hr），釜反应器温度下自由基聚合引发剂的半衰期（τ1/ 2 [hr]），搅拌功率（PV [kW / m3]），反应原料在反应釜中的平均停留时间（＆amp; tt; [hr]）和反应原料中自由基聚合引发剂的浓度（I [ppm]）满足以下关系：＆amp; t; M>τ1/ 2，PV×＆Thetas;×I×τ1/ 2 <4。

8. 发明授权

US10184015B2 Process for producing (meth)acrylic resin composition 有权
公开(公告)号：US10184015B2
公开(公告)日：2019-01-22
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 , C08F20/14 , C08F2/02 , C08F6/10 , C08F220/14
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.

9. 发明授权

US10017587B2 Process for producing (meth)acrylic resin composition 有权
公开(公告)号：US10017587B2
公开(公告)日：2018-07-10
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： C08F2/00 , C08F4/00 , C08F6/22 , B01J19/18 , 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.

10. 发明授权

US09914796B2 Method for producing (meth)acrylic resin composition 有权
公开(公告)号：US09914796B2
公开(公告)日：2018-03-13
申请号：US14411653
申请日：2013-06-28
申请人： KURARAY CO., LTD.
发明人： Hiroshi Ozawa , Shouji Tanaka , Yasuhito Kitade
IPC分类号： C08F220/18 , C08F220/14 , C08F6/28 , C08F2/02 , G02B1/04 , C08F6/00 , C08F2/01 , C08F120/14
CPC分类号： C08F220/18 , C08F2/01 , C08F2/02 , C08F6/005 , C08F120/14 , C08F220/14 , G02B1/045 , C08L33/12 , C08F210/14
摘要： A method of producing a (meth)acrylic resin composition. The method comprises a step of continuously feeding a monomer mixture comprising 80 to 100% by mass of methyl methacrylate and 20 to 0% by mass of an alkyl acrylate to a tank reactor and bulk polymerizing the monomer mixture until obtaining a polymerization conversion of 40 to 70% by mass to prepare a reaction product; continuously discharging the reaction product, and heating the reaction product to 200° C. to 270° C. with a heater, and then separating the unreacted monomer with a extruder equipped with a vent; and transferring the separated unreacted monomer entrained by an inert gas flow to reuse the separated unreacted monomer as a raw material of the monomer mixture.

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