公开(公告)号：US07001960B2

公开(公告)日：2006-02-21

申请号：US11067717

申请日：2005-03-01

申请人： Makoto Ooura ,  Tadashi Amano

发明人： Makoto Ooura ,  Tadashi Amano

IPC分类号： C08F2/20

CPC分类号： C08F114/06

摘要： A process for producing a vinyl chloride-based polymer by suspension polymerization is provided. The polymerization is initiated in the presence of (A) a particular hydroxypropylmethylcellulose, (B) a particular partially saponified PVA with a saponification degree of 75 to 85 mol % and an average polymerization degree of 1000 to 3000, and (C) a particular partially saponified PVA with a saponification degree of 20 to 57 mol % and an average polymerization degree of 150 to 600 in a specified ration, and said (C) is also additionally added to the polymerization system when a conversion rate is 15–50%. Polymers with a high porosity, excellent plasticizer absorption, extremely low levels of fish eyes, and a high bulk specific gravity are produced at a high level of productivity.

摘要翻译： 提供了一种通过悬浮聚合制备氯乙烯基聚合物的方法。 在（A）特定的羟丙基甲基纤维素，（B）皂化度为75至85摩尔％，平均聚合度为1000至3000的特定部分皂化的PVA的存在下引发聚合，和（C）特定部分 在规定的比例中皂化度为20〜57摩尔％，平均聚合度为150〜600的皂化PVA，当转化率为15〜50％时，也加入到聚合体系中。 以高生产率生产具有高孔隙率，优异的增塑剂吸收性，极高水平的鱼眼和高体积比重的聚合物。

公开(公告)号：US06861488B2

公开(公告)日：2005-03-01

申请号：US10642172

申请日：2003-08-18

申请人： Makoto Ooura ,  Tadashi Amano

发明人： Makoto Ooura ,  Tadashi Amano

IPC分类号： C08F2/18 ,  C08F14/06 ,  C08F14/08 ,  C08F4/28

CPC分类号： C08F14/06 ,  C08F2/18 ,  C08F14/08 ,  C08F2/16

摘要： There is provided a process for producing a vinyl chloride-based polymer by conducting a suspension polymerization in an aqueous medium using an oil soluble polymerization initiator, wherein the oil soluble polymerization initiator utilizes a combination of (A) t-amyl peroxyneodecanoate and (B) a peroxide-based polymerization initiator with a 10 hour half-life temperature in a solution with a concentration of 0.1 mol/liter in trichloroethylene within a range of at least 30° C. but less than 55° C., and when a predetermined polymerization conversion rate is reached, the polymerization reaction temperature is raised by a predetermined amount, followed by addition of an antioxidant to said polymerization mixture to halt the polymerization reaction. According to this process, a vinyl chloride-based polymer with good anti-initial discoloration can be produced in high yield and with good productivity.

摘要翻译： 提供了一种通过使用油溶性聚合引发剂在水性介质中进行悬浮聚合来制备氯乙烯类聚合物的方法，其中油溶性聚合引发剂利用（A）过氧新癸酸叔戊酯和（B） 在三氯乙烯浓度为0.1摩尔/升的溶液中，在至少30℃但小于55℃的范围内具有10小时半衰期温度的过氧化物基聚合引发剂，当预定的聚合 使聚合反应温度升高预定量，然后向所述聚合混合物中加入抗氧化剂以停止聚合反应。 根据该方法，可以高产率和高生产率制备具有良好抗初始变色性的氯乙烯系聚合物。

公开(公告)号：US07112637B2

公开(公告)日：2006-09-26

申请号：US10561962

申请日：2004-12-21

申请人： Makoto Ooura ,  Tadashi Amano

发明人： Makoto Ooura ,  Tadashi Amano

IPC分类号： C08F2/18 ,  C08F14/06

CPC分类号： C08F14/06 ,  C08F2/18

摘要： There is provided a process for producing a vinyl chloride-based polymer, in which a suspension polymerization of either vinyl chloride monomer, or a mixture of vinyl chloride monomer and another copolymerizable monomer, is conducted in a polymerization vessel fitted with a reflux condenser, the process including the steps of: (A) adding to the reaction mixture a high-activity, oil-soluble polymerization initiator, with a 10-hour half life temperature of no more than 40° C. at a concentration of 0.1 mol/L in benzene, for a specified time within a period from the commencement of heat removal using the reflux condenser through to completion of the polymerization, (B) adding water either continuously or intermittently to the reaction mixture through the supply pipe for the polymerization initiator, at least during the period from the commencement of addition of the high-activity, oil-soluble polymerization initiator through to completion of that addition, and (C) passing steam through the supply pipe following completion of the addition of the water. According to the present invention, the process for producing a vinyl chloride-based polymer by aqueous suspension polymerization in a polymerization vessel fitted with a reflux condenser can be improved, the heat removal capability can be utilized effectively to shorten the polymerization time, and a high quality vinyl chloride-based polymer with an extremely low level of fish eyes can be produced.

摘要翻译： 提供了一种氯乙烯系聚合物的制造方法，其中氯乙烯单体或氯乙烯单体与其它可共聚单体的混合物的悬浮聚合在配有回流冷凝器的聚合容器中进行， 方法包括以下步骤：（A）将浓度为0.1mol / L的10分钟半衰期不大于40℃的高活性油溶性聚合引发剂加入到反应混合物中 苯，在使用回流冷凝器进行除热开始到完成聚合之前的一段时间内，（B）通过聚合引发剂的供给管连续地或间歇地向反应混合物中加入水，至少 在从开始加入高活性油溶性聚合引发剂到完成该添加的期间，和（C）使蒸汽通过th e在完成添加水后供应管道。 根据本发明，通过在配有回流冷凝器的聚合容器中通过水悬浮聚合制造氯乙烯类聚合物的方法可以得到改善，可以有效地利用除热能力来缩短聚合时间，并且高 可以生产具有极低水平鱼眼的优质氯乙烯基聚合物。

公开(公告)号：US20100087608A1

公开(公告)日：2010-04-08

申请号：US12555247

申请日：2009-09-08

申请人： Kiyoshi ENDO ,  Yoshikatsu TSUCHIYA ,  Makoto OOURA ,  Hideaki ISHIZU

发明人： Kiyoshi ENDO ,  Yoshikatsu TSUCHIYA ,  Makoto OOURA ,  Hideaki ISHIZU

IPC分类号： C08F4/42

CPC分类号： C08F4/20 ,  C08F4/68 ,  C08F14/06 ,  C08F2/02 ,  C08F2/06

摘要： A method that is capable of producing a vinyl chloride-based polymer having excellent thermal stability without sacrificing productivity is provided. The method includes polymerizing a vinyl chloride-based monomer in the presence of a vanadium compound (A) represented by formula: Vi(═O)jZk (wherein i is an integer of 2 to 5, j represents 0 or 1, Z represents a ligand such as is an organic ligand that can bond to the vanadium atom via a hetero atom, and a plurality of ligands Z may be bonded together to form a ring that also includes the vanadium atom as a member of the ring, and k is an integer from 1 to 5), and in the presence of at least one aluminum compound (B).

摘要翻译： 提供能够生产具有优异的热稳定性而不牺牲生产率的氯乙烯类聚合物的方法。 该方法包括在由式（Ⅵ））ZZ表示的钒化合物（A）存在下聚合氯乙烯基单体：其中i为2至5的整数，j表示0或1，Z表示 配体，例如可以通过杂原子键合到钒原子上的有机配体，并且多个配位体Z可以键合在一起形成还包括钒原子作为环的成员的环，k是 1至5的整数）和至少一种铝化合物（B）的存在下进行。

公开(公告)号：US06600000B1

公开(公告)日：2003-07-29

申请号：US09511317

申请日：2000-02-23

申请人： Makoto Ooura ,  Tadashi Amano

发明人： Makoto Ooura ,  Tadashi Amano

IPC分类号： C08F1406

CPC分类号： C08F14/06 ,  C08K5/13 ,  C08F2/44 ,  C08L27/06

摘要： A process for producing a vinyl chloride polymer, the process including the steps of charging into a polymerization vessel, vinyl chloride or a monomer mixture containing vinyl chloride, water, and other materials necessary for polymerization, and polymerizing in an aqueous medium the vinyl chloride or the monomer mixture. An antioxidant is added to a mixture of materials before polymerization, or to a polymerization reaction mixture during polymerization or after polymerization. The antioxidant is added in the state of an aqueous dispersion and by means of a uniaxial eccentric screw pump. The aqueous antioxidant dispersion can be added at a constant rate and stably, without causing any block-up of the interior of the pump even when the polymerization vessel is held at a high internal pressure. Hence, vinyl chloride polymers having less uneven plasticizer absorption and having good anti-initial discoloration properties and thermal stability can be produced stably.

摘要翻译： 一种制备氯乙烯聚合物的方法，该方法包括以下步骤：将聚合容器，氯乙烯或含有氯乙烯，水和聚合所需的其它物质的单体混合物装入聚合容器中，并在水性介质中聚合氯乙烯或 单体混合物。 在聚合前将抗氧化剂加入到材料的混合物中，或在聚合期间或聚合后加入到聚合反应混合物中。 抗氧化剂以水分散体的状态并通过单轴偏心螺杆泵加入。 即使在将聚合容器保持在高内压下时，可以以恒定的速率和稳定地加入水性抗氧化剂分散体，而不引起泵的内部的任何堵塞。 因此，可以稳定地制造具有不均匀的增塑剂吸收性和良好的抗起始变色性和热稳定性的氯乙烯聚合物。

公开(公告)号：US06303712B1

公开(公告)日：2001-10-16

申请号：US09377917

申请日：1999-08-20

申请人： Kazuhiro Kumakura ,  Makoto Ooura ,  Tadashi Amano

发明人： Kazuhiro Kumakura ,  Makoto Ooura ,  Tadashi Amano

IPC分类号： C08F218

CPC分类号： C08F14/06 ,  C08F2/18

摘要： In a process for producing a vinyl chloride polymer by suspension polymerization in a polymerization vessel having a coating film of a polymer scale preventive agent on the polymerization vessel inner wall and other inner surfaces, the polymerization is initiated by introducing an oil-soluble polymerization initiator having 10-hour half-life temperature of from 30° C. to 55° C., at a particular position of the interior of the liquid phase of polymerization materials charged. The position satisfys the following expression: H≦0.7H0 wherein H represents a height from the bottom of the polymerization vessel to the position where the polymerization initiator is introduced, and H0 represents a height from the bottom of the polymerization vessel to the liquid surface of the liquid phase. This process can effectively prevent polymer scales from adhering to the polymerization vessel inner wall of course and also to the baffle on its side facing the polymerization vessel inner wall at the gas/liquid interface and the vicinity thereof even with repetition of polymerization of vinyl chloride. Good formed products with less fish eyes can be obtained.

摘要翻译： 在聚合容器内壁等内表面具有聚合物防垢剂的涂膜的聚合容器中通过悬浮聚合制造氯乙烯聚合物的方法中，通过引入具有 在10℃的半衰期温度为30℃至55℃，在聚合物质液相内部的特定位置带电。 该位置满足以下表达式：其中H表示从聚合容器的底部到引入聚合引发剂的位置的高度，H0表示从聚合容器的底部到液相的液面的高度。 该方法可以有效地防止聚合物垢在当然的情况下粘附到聚合容器的内壁上，并且还可以在气/液界面及其附近面向聚合容器内壁的侧面上，甚至重复聚合氯乙烯。 可以获得鱼眼少的良好成型产品。

公开(公告)号：US06288177B1

公开(公告)日：2001-09-11

申请号：US09182411

申请日：1998-10-30

申请人： Makoto Ooura ,  Tadashi Amano

发明人： Makoto Ooura ,  Tadashi Amano

IPC分类号： C08F216

CPC分类号： C08F2/004

摘要： There is provided a process for producing a vinyl chloride polymer wherein in a polymerization vessel, vinyl chloride monomer or a vinyl monomer mixture comprised mainly of vinyl chloride monomer is polymerized by the aid of a polymerization initiator in an aqueous medium, comprising previously forming a coating film comprised of a polymer scale deposition preventive agent prior to the polymerization on the inner wall surface of the polymerization vessel and the other areas, to which said monomer contacts during the polymerization, by coating thereon a coating solution containing the polymer scale deposition preventive agent by the aid of steam as a carrier; and carrying out said polymerization in the presence of a chelating agent capable of forming a Fe(II) or Fe(III) complex in said aqueous medium. According to the process, while preventing polymer scale deposition on the areas where polymer scale deposition has hitherto been hardly prevented in the polymerization of vinyl chloride or the like using an aqueous medium in a polymerization vessel, such as baffles' surfaces facing the inner wall surface of a polymerization vessel and near the interface between gas phase/liquid phase at which scales are liable to deposit by repeating polymerization, a high quality polymer product little in initial discoloration can be obtained.

摘要翻译： 提供了一种用于生产氯乙烯聚合物的方法，其中在聚合容器中，氯乙烯单体或主要由氯乙烯单体组成的乙烯基单体混合物借助于聚合引发剂在水性介质中聚合，包括预先形成涂层 在聚合反应之前聚合之前由聚合物垢沉积防止剂组成的膜和聚合期间所述单体与其接触的其它区域通过在其上涂覆含有聚合物垢沉积预防剂的涂布溶液 以蒸汽为载体的帮助; 并且在所述水性介质中能够形成Fe（II）或Fe（III）络合物的螯合剂存在下进行所述聚合。 根据该方法，在聚合容器中使用水性介质聚合中的聚氯乙烯等聚合物垢沉积区域几乎不能防止聚合物垢沉积，例如面向内壁表面的挡板表面 的聚合容器，并且在气相/液相之间的界面附近，通过重复聚合可以沉积鳞片，可以获得几乎没有初始变色的高品质聚合物产物。

公开(公告)号：US5866634A

公开(公告)日：1999-02-02

申请号：US703995

申请日：1996-08-28

申请人： Yuji Tokushige ,  Makoto Ooura ,  Norio Nakamura ,  Shuhei Ueda

发明人： Yuji Tokushige ,  Makoto Ooura ,  Norio Nakamura ,  Shuhei Ueda

IPC分类号： C08L31/04 ,  C08L67/02 ,  C08L67/04 ,  C08G63/08 ,  C08G63/16 ,  C08L31/06

CPC分类号： C08L67/04 ,  C08L31/04 ,  C08L67/02

摘要： The present invention provides a novel biodegradable polymer compositions effecting superiority in elongation at break, Izod impact strength and mold releasability which has not been obtained before the past and provides a biodegradable shrink film exceling in transparency, strength, flexibility, mold releasability and shrinkability by applying the biodegradable polymer composition to the shrink film. Thus, the biodegradable polymer compositions are provided which comprise as a main component a mixture of two or more of polylactic acids, glycol/aliphatic dicarboxylic acid copolymers and polycaprolactones and these biodegradable polymer compositions are applied to shrink films.

摘要翻译： 本发明提供了一种在过去未获得的效果优异的断裂伸长率，悬臂梁式冲击强度和脱模性的新型可生物降解的聚合物组合物，并提供了透明性，强度，柔韧性，脱模性和收缩性优异的可生物降解的收缩膜 生物降解聚合物组合物与收缩膜。 因此，提供了可生物降解的聚合物组合物，其包含两种或多种聚乳酸，二醇/脂族二羧酸共聚物和聚己内酯的混合物作为主要组分，并将这些可生物降解的聚合物组合物应用于收缩膜。

公开(公告)号：US20080176995A1

公开(公告)日：2008-07-24

申请号：US12017869

申请日：2008-01-22

申请人： Makoto OOURA ,  Tadashi Amano ,  Minoru Shigemitsu ,  Shingo Niinobe

发明人： Makoto OOURA ,  Tadashi Amano ,  Minoru Shigemitsu ,  Shingo Niinobe

IPC分类号： C09K3/00 ,  C08L27/06

CPC分类号： C08F14/06 ,  C08L1/284 ,  C08L27/06 ,  C08F2/20 ,  C08L2666/26

摘要： Provided is a dispersion stabilizer for suspension polymerization that contains a hydroxypropylmethylcellulose with a degree of methoxy group substitution of 27 to 30% by mass and a degree of hydroxypropoxy group substitution of 5 to 12% by mass, in which the viscosity at 20° C. of a 2% by mass aqueous solution of the hydroxypropylmethylcellulose is within a range from 5 to 1,600 mPa·s, and in 2 ml of a 0.2% by mass solution of the hydroxypropylmethylcellulose, the number of undissolved fibers with a particle size within a range from 8 to 200 μm, as measured by a Coulter counter method, is not more than 1,000, and the number of undissolved fibers with a particle size of 50 μm or greater measured using the same method is not more than 20. By employing a method of producing a vinyl chloride-based polymer that uses this dispersion stabilizer, a vinyl chloride-based polymer with extremely low levels of fish eyes and defects derived from foreign objects can be produced.

摘要翻译： 提供一种悬浮聚合用分散稳定剂，其含有甲氧基取代度为27〜30质量％，羟基丙氧基取代度为5〜12质量％的羟丙基甲基纤维素，其中20℃下的粘度 的羟丙基甲基纤维素的2质量％水溶液在5〜1600mPa.s的范围内，在2ml的0.2质量％羟丙基甲基纤维素溶液中，粒径在一定范围内的未溶解纤维的数量 通过Coulter反方法测量的8至200μm的不超过1,000个，使用相同方法测量的粒径为50μm或更大的未溶解纤维的数量不超过20.通过采用方法 制造使用该分散稳定剂的基于氯乙烯的聚合物，可以制造具有极低水平鱼眼的氯乙烯类聚合物和由异物衍生的缺陷。

公开(公告)号：US20070100098A1

公开(公告)日：2007-05-03

申请号：US10561909

申请日：2004-12-21

申请人： Makoto Ooura ,  Tadashi Amano

发明人： Makoto Ooura ,  Tadashi Amano

IPC分类号： C08F4/28

CPC分类号： C08F14/06 ,  C08F2/18

摘要： There is provided a process for producing a vinyl chloride-based polymer, in which a suspension polymerization of either vinyl chloride monomer, or a mixture of vinyl chloride monomer and another copolymerizable monomer, is conducted in a polymerization vessel fitted with a reflux condenser, the process including the steps of: (A) adding to the reaction mixture a high-activity, oil-soluble polymerization initiator, with a 10-hour half life temperature of no more than 40° C. at a concentration of 0.1 mol/L in benzene, for a specified time within a period from the commencement of heat removal using the reflux condenser through to completion of the polymerization, and (B) adding an antioxidant either continuously or intermittently to the reaction mixture at least during the period from the commencement of addition of the high-activity, oil-soluble polymerization initiator through to completion of that addition. According to the present invention, the process for producing a vinyl chloride-based polymer by aqueous suspension polymerization in a polymerization vessel fitted with a reflux condenser can be improved, the heat removal capability can be utilized effectively to shorten the polymerization time, and a high quality vinyl chloride-based polymer with an extremely low level of fish eyes can be produced.