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：US5376747A

公开(公告)日：1994-12-27

申请号：US125764

申请日：1993-09-24

申请人： Minoru Shigemitsu ,  Tadashi Amano

发明人： Minoru Shigemitsu ,  Tadashi Amano

IPC分类号： C08F2/20 ,  C08F14/06

CPC分类号： C08F14/06

摘要： A process for suspension polymerizing vinyl chloride or a monomeric mixture containing the same in an aqueous medium comprising the step of adding a partially saponified polyvinyl alcohol having an average polymerization degree of 600 to 800 and a saponification degree of 65 to 75 mol % to a polymerization system, wherein the partially saponified polyvinyl alcohol is added before start of polymerization, and also after-added continuously or intermittently over the period from the start of polymerization to the time when a polymerization conversion of 10 to 30% is reached. By the suspension polymerization process, it is possible to obtain a vinyl chloride-based polymer having high bulk specific gravity, high gelation rate and a certain level of thermal stability and showing an effectively reduced number of fish eyes when formed into shaped products.

摘要翻译： 一种在水性介质中悬浮聚合氯乙烯或含有该氯乙烯的单体混合物的方法，包括将平均聚合度为600〜800，皂化度为65〜75摩尔％的部分皂化聚乙烯醇加入到聚合 系统，其中在聚合开始之前加入部分皂化的聚乙烯醇，并且在从聚合开始到达到10至30％的聚合转化的时间期间连续或间歇地后加入。 通过悬浮聚合方法，可以得到体积比重高，凝胶化率高，热稳定性一定的氯乙烯类聚合物，形成成型品时可以有效减少鱼眼数量。

公开(公告)号：US5212265A

公开(公告)日：1993-05-18

申请号：US859814

申请日：1992-03-30

申请人： Tadashi Amano ,  Minoru Shigemitsu

发明人： Tadashi Amano ,  Minoru Shigemitsu

IPC分类号： C08F6/10 ,  C08F2/16 ,  C08F6/00 ,  C08F6/06 ,  C08F6/24 ,  C08F14/00 ,  C08F14/06

CPC分类号： C08F6/003

摘要： A method for recovering unreacted monomers during preparation of a vinylic polymer comprises the steps of polymerizing a vinyl monomer in an aqueous medium in a polymerizer and then recovering unreacted monomers from the polymerization system, wherein a gas evacuation rate per unit charge weight of the monomer is controlled to the range of from 60 to 300 Nm.sup.3 /hr per ton of the monomer from the initiation of the monomer recovery till the pressure in the polymerizer reaches 2.5 kg/cm.sup.2 G and a superficial gas linear velocity is reduced to a level of not more than 0.008 m/sec when the pressure in the polymerizer reaches 2.5 kg/cm.sup.2 G. The method makes it possible to recover unreacted monomers quickly without causing carrying over of polymer particles formed and is effective to maintain high quality of vinylic polymers produced.

摘要翻译： 在制备乙烯基聚合物期间回收未反应单体的方法包括以下步骤：在聚合反应器中的水性介质中聚合乙烯基单体，然后从聚合体系中回收未反应的单体，其中单体单位电荷重量的排气速率为 控制在从单体回收开始直到聚合器中的压力达到2.5kg / cm2G的每吨单体为60至300Nm 3 / hr的范围内，并且表观气体线速度降低到不超过 当聚合器中的压力达到2.5kg / cm2G时为0.008m / sec。 该方法使得可以快速回收未反应的单体而不会导致形成的聚合物颗粒的携带，并且有效地保持所生产的乙烯基聚合物的高质量。

公开(公告)号：US06455646B1

公开(公告)日：2002-09-24

申请号：US09988524

申请日：2001-11-20

申请人： Masahiro Usuki ,  Minoru Shigemitsu ,  Tadashi Amano

发明人： Masahiro Usuki ,  Minoru Shigemitsu ,  Tadashi Amano

IPC分类号： C08F216

CPC分类号： C08F14/06 ,  C08F2/38

摘要： Vinyl chloride or a monomer mixture containing it transported over a long distance or stored for a long period usually contains a polymerization inhibitor and Fe ions. If this kind of vinyl chloride or monomer mixture is polymerized, stirring torque during the polymerization increases, and heat removal by the cooling jacket of a polymerization vessel tends to become insufficient, making the polymer quality subject to bad influences. In the present invention, a hydroxycarboxylic acid compound is added to the polymerization mixture in an amount of 50-1000 ppm relative to the monomer or monomer mixture. As a result, an increase in stirring torque during polymerization is suppressed, and heat removal by the cooling jacket of the polymerization vessel can be performed effectively, making it possible to obtain vinyl chloride of good quality.

摘要翻译： 氯乙烯或含有长距离运输或长期储存的单体混合物通常含有阻聚剂和Fe离子。 如果这种氯乙烯或单体混合物聚合，聚合过程中的搅拌转矩增加，聚合容器的冷却套的散热倾向变得不足，使聚合物质量受到不良影响。 在本发明中，羟基羧酸化合物相对于单体或单体混合物以50-1000ppm的量加入到聚合混合物中。 结果，抑制了聚合过程中搅拌转矩的增加，并且能够有效地进行聚合容器的冷却套的散热，能够得到质量好的氯乙烯。

公开(公告)号：US5282680A

公开(公告)日：1994-02-01

申请号：US63604

申请日：1993-05-19

申请人： Tadashi Amano ,  Shuji Ohnishi ,  Minoru Shigemitsu ,  Yasuhiro Takahashi ,  Hajime Kitamura

发明人： Tadashi Amano ,  Shuji Ohnishi ,  Minoru Shigemitsu ,  Yasuhiro Takahashi ,  Hajime Kitamura

IPC分类号： B01F5/16 ,  B01J19/24 ,  B01F15/02

CPC分类号： B01F5/16 ,  B01J19/2415 ,  B01J19/243 ,  B01J2219/00094 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00182

摘要： An apparatus for continuous polymerization of vinyl chloride or a vinyl chloride-based monomeric mixture, comprising a pre-mixer 1 for preparing an aqueous suspension of the vinyl chloride or vinyl chloride-based monomeric mixture, and a polymer slurry tank 5 connected to the pre-mixer 1 through a polymerization passage comprising a piping 3, wherein a pump comprising a conical hub and an impeller mounted thereon comprised of a single spiral blade is used for drawing out the aqueous suspension from the pre-mixer into the polymerization passage and for discharging a polymer slurry formed in the passage into the slurry tank, and the polymerization passage has a length sufficient for permitting the vinyl chloride or vinyl chloride-based monomeric mixture contained in the aqueous suspension flowing through the passage to be polymerized to a predetermined extent while passing through the passage. The use of the pump having the structure as above ensures a marked suppression of polymer scale deposition in the pump, heat exchanger and pipings, and makes it possible to produce a resin with few fish-eyes. The apparatus is of extremely high industrial value for carrying out continuous polymerization.

摘要翻译： 一种用于氯乙烯或氯乙烯基单体混合物的连续聚合的装置，包括用于制备氯乙烯或氯乙烯基单体混合物的水悬浮液的预混合器1和连接到前述聚合物浆料罐5的聚合物浆料罐5。 混合器1通过包括管道3的聚合通道，其中包括圆锥形轮毂和安装在其上的叶轮由包括单个螺旋叶片的泵用于将预混合器中的水悬浮液抽出到聚合通道中并用于排出 聚合物淤浆形成在通入浆料罐的通道中，并且聚合通道的长度足以允许流过通道的含水悬浮液中所含的氯乙烯或氯乙烯类单体混合物在通过时聚合至预定程度 通过通道。 具有上述结构的泵的使用确保了泵，热交换器和管道中的聚合物垢沉积的显着抑制，并且使得可以生产几乎没有鱼眼的树脂。 该设备具有非常高的工业价值用于进行连续聚合。

公开(公告)号：US5378775A

公开(公告)日：1995-01-03

申请号：US207107

申请日：1994-03-08

申请人： Toshihide Shimizu ,  Minoru Shigemitsu

发明人： Toshihide Shimizu ,  Minoru Shigemitsu

IPC分类号： C08F2/00 ,  C08F2/04 ,  C08F2/22 ,  C08F2/34 ,  C08F2/02 ,  C08F14/08

CPC分类号： C08F2/004

摘要： A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a N-substituted leucophenothiazine having the general formula (I): ##STR1## wherein Z is a carbonyl group or a sulfonyl group, R.sup.1, R.sup.2 and R.sup.3 are a hydrogen atom, alkyl group, an amino group, etc., and (B) a water-soluble basic polysaccharide. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.

摘要翻译： 一种用于聚合具有烯键式不饱和双键的单体的聚合物防垢剂，其包含（A）具有通式（I）的N-取代的亮氨酸噻嗪：其中Z为羰基或 磺酰基，R 1，R 2和R 3是氢原子，烷基，氨基等，和（B）水溶性碱性多糖。 该试剂用于在聚合容器的内壁等上形成涂层。 可以有效地防止聚合物垢的沉积，获得高白度的聚合物。

公开(公告)号：US5401815A

公开(公告)日：1995-03-28

申请号：US190214

申请日：1994-02-01

申请人： Toshihide Shimizu ,  Minoru Shigemitsu

发明人： Toshihide Shimizu ,  Minoru Shigemitsu

IPC分类号： C08F2/00 ,  C08K5/47 ,  C09D139/06

CPC分类号： C08K5/47 ,  C09D139/06 ,  Y10T428/1352

摘要： A process and coated vessel for use in the prevention of scale adhesion during the polymerization of a monomer having an ethylenic double bond, the two part coating comprising an N-substituted leucophenothiazine dye having the general formula (I): wherein Z is a carbonyl group or a sulfonyl group, R.sup.1, R.sup.2 and R.sup.3 are a hydrogen atom, alkyl group, an amino group, etc., used in conjunction with a vinyl pyrrolidone polymer. The two part coating is used on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.

摘要翻译： 一种用于防止在具有烯属双键的单体的聚合过程中的水垢附着的方法和涂覆的容器，所述两部分涂层包含具有通式（I）的N-取代的亮氨基噻嗪染料：磺酰基，R 1，R 2 和R3是与乙烯基吡咯烷酮聚合物结合使用的氢原子，烷基，氨基等。 两部分涂层用于聚合容器的内壁等。 可以有效地防止聚合物垢的沉积，获得高白度的聚合物。

公开(公告)号：US5418302A

公开(公告)日：1995-05-23

申请号：US173872

申请日：1993-12-27

申请人： Toshihide Shimizu ,  Minoru Shigemitsu

发明人： Toshihide Shimizu ,  Minoru Shigemitsu

IPC分类号： C08F2/00 ,  C08F14/06

CPC分类号： C08F2/004

摘要： A process to inhibit scale adhesion to the interior of a polymerization vessel using a two part coating composition. The coating is a hydroxyanthraquinone compound used in conjunction with a water soluble salt of chitosan, applied as a solution and dried on the vessel interior. Advantages of the coating are its effective scale prevention, unaltered color of the polymer product and low toxicity.

摘要翻译： 使用两部分涂料组合物抑制聚合容器内部附着垢的方法。 该涂层是与壳聚糖的水溶性盐结合使用的羟基蒽醌化合物，作为溶液施用并在容器内部干燥。 涂层的优点是其有效防垢，聚合物产品颜色不变，毒性低。

公开(公告)号：US5201945A

公开(公告)日：1993-04-13

申请号：US853516

申请日：1992-03-18

申请人： Toshihide Shimizu ,  Minoru Shigemitsu

发明人： Toshihide Shimizu ,  Minoru Shigemitsu

IPC分类号： C08F2/00 ,  C08L5/08

CPC分类号： C08L5/08 ,  C08F2/004

摘要： A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a water-soluble basic polysaccharide and (B) an organic acid compound. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.

摘要翻译： 一种用于聚合具有烯键式不饱和双键的单体的聚合物防垢剂，其包含（A）水溶性碱性多糖和（B）有机酸化合物。 该试剂用于在聚合容器的内壁等上形成涂层。 可以有效地防止聚合物垢的沉积，获得高白度的聚合物。

公开(公告)号：US5759739A

公开(公告)日：1998-06-02

申请号：US635856

申请日：1996-04-22

申请人： Katsuya Takemura ,  Toshinobu Ishihara ,  Kazumasa Maruyama ,  Yoshihumi Takeda ,  Minoru Shigemitsu ,  Ken'ichi Itoh

发明人： Katsuya Takemura ,  Toshinobu Ishihara ,  Kazumasa Maruyama ,  Yoshihumi Takeda ,  Minoru Shigemitsu ,  Ken'ichi Itoh

IPC分类号： G03F7/00 ,  G03F7/004 ,  G03F7/039 ,  G03C1/73

CPC分类号： G03F7/039 ,  G03F7/0045 ,  Y10S430/111

摘要： A resist composition comprising an alkali-soluble resin, typically a partially t-butoxycarbonylated polyhydroxystyrene, a p-butoxystyrene/t-butylacrylate copolymer or p-butoxystyrene/maleic anhydride copolymer as a dissolution inhibitor, and a iodonium or sulfonium salt as a photoacid generator is effective for forming a resist film which can be precisely and finely patterned using high energy radiation such as a KrF excimer laser.

摘要翻译： 抗蚀剂组合物，其包含碱溶性树脂，通常为部分叔丁氧基羰基化的聚羟基苯乙烯，作为溶解抑制剂的对丁氧基苯乙烯/叔丁基丙烯酸酯共聚物或对丁氧基苯乙烯/马来酸酐共聚物，以及作为光酸产生剂的碘鎓盐或锍盐 对于形成可以使用高能辐射如KrF准分子激光器精确和精细地图案化的抗蚀剂膜是有效的。