公开(公告)号：US5349008A

公开(公告)日：1994-09-20

申请号：US778125

申请日：1991-12-04

申请人： Shigeki Takada ,  Ken Yuki ,  Hitoshi Maruyama ,  Taku Tanaka ,  Kazunari Igarashi

发明人： Shigeki Takada ,  Ken Yuki ,  Hitoshi Maruyama ,  Taku Tanaka ,  Kazunari Igarashi

IPC分类号： C08F2/20 ,  C08F2/38 ,  C08L29/04

CPC分类号： C08F2/20

摘要： Disclosed herein is a process for suspension polymerization of a vinyl polymer which comprises using as the suspending agent a polyvinyl ester polymer having an ionic group at an end thereof or a polyvinyl alcohol polymer having a degree of hydrolysis of 90 mol % or less which is obtained by hydrolysis of the above polyvinyl ester polymer.According to the above-mentioned process, vinyl polymer granules having a sharp granulometric dispersion, high bulk density, high plasticizer absorption and low vinyl monomer residue are obtained.

摘要翻译： PCT No.PCT / JP91 / 00420 Sec。 371 1991年12月4日第 102（e）日期1991年12月4日PCT 1991年3月29日PCT公布。 出版物WO91 / 15518 日期为1991年10月17日。本文公开了一种乙烯基聚合物的悬浮聚合方法，其包括使用其末端具有离子基团的聚乙烯基酯聚合物或水解度为90的聚乙烯醇聚合物作为悬浮剂 mol％以下，通过上述聚乙烯基酯聚合物的水解得到。 根据上述方法，得到具有尖锐粒度分散，高堆积密度，高增塑剂吸收性和低乙烯基单体残基的乙烯基聚合物颗粒。

公开(公告)号：US5308911A

公开(公告)日：1994-05-03

申请号：US28181

申请日：1993-03-09

申请人： Shigeki Takada ,  Hitoshi Maruyama ,  Naoki Fujiwara ,  Kazutoshi Terada

发明人： Shigeki Takada ,  Hitoshi Maruyama ,  Naoki Fujiwara ,  Kazutoshi Terada

IPC分类号： C08F2/20 ,  C08F14/06 ,  C08L29/04 ,  C08F2/00

CPC分类号： C08F2/20 ,  C08F14/06

摘要： There are disclosed a secondary suspending agent for suspension polymerization of a vinyl compound (vinyl chloride, etc.) which comprises an aqueous dispersion comprising as the dispersoid, a polyvinyl ester having a degree of hydrolysis of 60 mol% or less, an average degree of polymerization of 4000 or more and an average particle diameter of 100 .mu.m or less; a suspension stabilizing agent comprising 5 to 70% by weight of the secondary suspending agent (PVA, etc.) and 30 to 95% by weight of a water-soluble high molecular compound having a degree of polymerization of 500 or more, the agent being used for suspension polymerization of a vinyl compound; and a process for producing a vinyl polymer (PVC, etc.) comprising suspension polymerizing a vinyl compound by the use of the above suspension stabilizing agent. Both the agents are well suited for producing vinyl polymer granules enhanced in absorption rate of plasticizer, bulk density, removality of residual monomer and porosity.

摘要翻译： 公开了一种乙烯基化合物（氯乙烯等）的悬浮聚合用二次悬浮剂，其包含含有分散体的水分散体，水解度为60摩尔％以下的聚乙烯基酯， 聚合4000以上，平均粒径为100μm以下; 包含5〜70重量％的二次悬浮剂（PVA等）和30〜95重量％的聚合度为500以上的水溶性高分子化合物的悬浮稳定剂，试剂为 用于乙烯基化合物的悬浮聚合; 以及包含通过使用上述悬浮稳定剂使乙烯基化合物悬浮聚合的乙烯基聚合物（PVC等）的制造方法。 这两种试剂都非常适合生产提高增塑剂吸收速率，堆积密度，残留单体去除率和孔隙率的乙烯基聚合物颗粒。

公开(公告)号：US06596807B2

公开(公告)日：2003-07-22

申请号：US09916502

申请日：2001-07-30

申请人： Tatsuya Oshita ,  Goki Uehara ,  Nobuhisa Senda ,  Yoshiki Takeda ,  Yukiatsu Komiya ,  Syuichi Kanao ,  Shigeki Takada ,  Naoki Kawakami ,  Kanenori Ito

发明人： Tatsuya Oshita ,  Goki Uehara ,  Nobuhisa Senda ,  Yoshiki Takeda ,  Yukiatsu Komiya ,  Syuichi Kanao ,  Shigeki Takada ,  Naoki Kawakami ,  Kanenori Ito

IPC分类号： C08L2904

CPC分类号： C08J7/042 ,  C08F8/42 ,  C08F2800/10 ,  C08J2323/06 ,  C08J2429/04 ,  C08J2483/04 ,  Y10T428/31725 ,  Y10T428/3175 ,  Y10T428/31855 ,  Y10T428/31913 ,  C08F216/06 ,  C08F8/12 ,  C08F218/08

摘要： A vinyl alcohol polymer composition (II) is produced by a process of providing a reaction liquid comprising a solution containing a vinyl carboxylate polymer and, a first metal alkoxide (I) having at least one functional group and/or an oligomer (I) having at least one functional group obtained from said metal alkoxide (I); a step of simultaneously effecting (a) saponification of said vinyl carboxylate polymer and (b) reaction in which at least part of the functional groups of said metal alkoxide (I) and/or said oligomer (I) participates, thereby obtaining a vinyl alcohol polymer composition (I); and a step of preparing a solution (A) containing said vinyl alcohol polymer composition (I), followed by adding to the solution (A) a second metal alkoxide (II) and/or an oligomer (II) obtained from the metal alkoxide (II) or another solution (B) containing the metal alkoxide (II) and/or the oligomer (II) derived from the metal alkoxide (II), to prepare an intermediate product solution (C), and then removing the solvent from said solution (C). The vinyl alcohol polymer composition obtained by the above process has excellent gas-barrier properties, in particular excellent gas-barrier properties under high-humidity conditions. The vinyl alcohol polymer composition is suitably usable as a coating agent having good storage stability and little uneven applicability, and as gas-barrier material, in particular laminate having excellent gas-barrier properties under high-humidity conditions.

公开(公告)号：US06364987B1

公开(公告)日：2002-04-02

申请号：US09517004

申请日：2000-02-28

申请人： Shigeki Takada ,  Sadahiko Shiraga

发明人： Shigeki Takada ,  Sadahiko Shiraga

IPC分类号： B29C4706

CPC分类号： B29C55/026 ,  B29C47/00 ,  B29C47/0021 ,  B29K2029/04

摘要： Provided is a method for producing gas barrier film, in which the coating film produced has excellent, oxygen gas barrier properties and is influenced little by moisture. The method comprises extruding a polyvinyl alcohol which contains not more than 19 mol % of &agr;-olefin units with not more than 4 carbon atoms, onto a substrate film, then stretching it at least 3-fold and subjecting it to heat treatment at a temperature not lower than 120° C.

摘要翻译： 提供一种阻气膜的制造方法，其中所制备的涂膜具有优异的氧气阻隔性，并且几乎不受水分的影响。 该方法包括将含有不多于19摩尔％的不超过4个碳原子的α-烯烃单元的聚乙烯醇挤出到基材膜上，然后将其拉伸至少3倍，并在温度下进行热处理 不低于120℃

公开(公告)号：US5629378A

公开(公告)日：1997-05-13

申请号：US529064

申请日：1995-09-15

申请人： Shigeki Takada

发明人： Shigeki Takada

IPC分类号： C08F2/00 ,  C08F2/18 ,  C08F2/20 ,  C08G63/48

CPC分类号： C08F2/20

摘要： The present invention is to provide a suspending agent for suspension polymerization of a vinyl compound which comprises a polyvinyl alcohol polymer (A) having a degree of hydrolysis of at least 60 mol % and a mercapto group at an end thereof; and furthermore a suspending agent for suspension polymerization of a vinyl compound which comprises a polyvinyl alcohol polymer (A) having a degree of hydrolysis of at least 60 mol % and a mercapto group at an end thereof and a polyvinyl ester polymer (B) having a degree of hydrosis of less than 60 mol %, weight ratio of component (A)/component (B) being 40/60 to 95/5.The suspending agent for suspension polymerization of a vinyl compound of the present invention has an excellent less-foaming effect and an effect of giving uniform and porous vinyl polymer granules.

摘要翻译： 本发明提供一种乙烯基化合物的悬浮聚合用悬浮剂，它包括水解度至少为60mol％的聚乙烯醇聚合物（A）和末端的巯基; 以及乙烯基化合物的悬浮聚合用悬浮剂，其包含水解度为60摩尔％的聚乙烯醇聚合物（A）和末端为巯基的聚乙烯基化合物（B）和具有 含水率小于60mol％，组分（A）/组分（B）的重量比为40/60至95/5。 本发明的乙烯基化合物的悬浮聚合用悬浮剂具有优异的少发泡效果和赋予均匀且多孔的乙烯基聚合物颗粒的效果。

公开(公告)号：US06303199B1

公开(公告)日：2001-10-16

申请号：US09324914

申请日：1999-06-03

申请人： Shigeki Takada ,  Sadahiko Shiraga

发明人： Shigeki Takada ,  Sadahiko Shiraga

IPC分类号： B25D2200

CPC分类号： C08J7/047 ,  C08J2429/00 ,  C08K5/0025 ,  C08K2201/008 ,  C09D129/04 ,  Y10T428/1324 ,  Y10T428/1338 ,  Y10T428/1341 ,  Y10T428/1383 ,  Y10T428/2826 ,  Y10T428/31725 ,  Y10T428/31743 ,  Y10T428/31746 ,  Y10T428/3192 ,  C08L29/04 ,  C08L2666/28

摘要： A water-soluble polyvinyl alcohol coating agent for a film contains from 3 to 19 mol % of &agr;-olefin units, wherein each said &agr;-olefin unit contains up to 4 carbon atoms. The polyvinyl alcohol coating agent can be coated on a polyolefin, a polyester or a polyamide substrate film to form a laminate film. A method for producing the laminate film comprises applying an aqueous solution of the coating agent to the substrate film, followed by drying the coating.

摘要翻译： 用于膜的水溶性聚乙烯醇包衣剂含有3至19摩尔％的α-烯烃单元，其中每个所述α-烯烃单元含有至多4个碳原子。 可以将聚乙烯醇涂布剂涂布在聚烯烃，聚酯或聚酰胺基材膜上以形成层压膜。 制造层压膜的方法包括将涂布剂的水溶液涂布到基材膜上，然后干燥涂层。

公开(公告)号：US5849831A

公开(公告)日：1998-12-15

申请号：US832511

申请日：1997-04-02

申请人： Shigeki Takada

发明人： Shigeki Takada

IPC分类号： C08F2/16 ,  C08F2/20

CPC分类号： C08F2/20

摘要： There is disclosed a process for producing a vinyl resin by suspension polymerization of a vinyl compound in the presence of a suspending agent (A) which comprises using a polymerization vessel equipped with a reflux condenser and adding a polyvinyl alcohol (B) having a degree of hydrolysis of at most 85 mol % in an amount of 0.001 to 0.5 part by weight based on 100 parts by weight of said vinyl compound when a polymerization conversion is in the range of 30 to 90%. According to the present invention, there is provided a process for producing a vinyl resin having a high bulk density, which is excellent in anti-foaming effect against the dry foam being generated in the middle to latter period of the suspension polymerization in a polymerization vessel equipped with a reflux condenser which is excellent in productivity.

摘要翻译： 公开了一种在悬浮剂（A）的存在下通过乙烯基化合物的悬浮聚合制备乙烯基树脂的方法，该悬浮剂包括使用装有回流冷凝器的聚合容器，并加入具有 当聚合转化率在30-90％范围内时，基于100重量份所述乙烯基化合物，其量为0.001-0.5重量份，最多为85摩尔％。 根据本发明，提供一种制造具有高堆积密度的乙烯基树脂的方法，其在聚合容器中的悬浮聚合的中后期产生的干泡沫的消泡效果优异 配备有生产率优异的回流冷凝器。

公开(公告)号：US5717044A

公开(公告)日：1998-02-10

申请号：US734852

申请日：1996-10-23

申请人： Shigeki Takada

发明人： Shigeki Takada

IPC分类号： C08F2/00 ,  C08F2/18 ,  C08F2/20

CPC分类号： C08F2/20

摘要： A vinyl compound is polymerized under suspension polymerization conditions by polymerizing the vinyl compound in a suspension polymerization medium containing, as the suspending agent, from 0.02 to 0.2 parts by weight of a polyvinyl alcohol polymer (A) having a degree of hydrolysis ranging from 60 to 95 mol % and a terminal mercapto group, based on 100 parts by weight of the vinyl compound. In another aspect of the invention, the suspending agent is a combination of said polyvinyl alcohol polymer (A) and a polyvinyl ester (B) having a degree of hydrolysis less than 60 mol %. The weight ratio of the two polymeric suspending agents (A)/(B) ranges from 40/60 to 95/5.

摘要翻译： 乙烯基化合物在悬浮聚合条件下通过在悬浮聚合介质中聚合乙烯基化合物而聚合，所述悬浮聚合介质含有0.02至0.2重量份的水解度范围为60至 95摩尔％和末端巯基，基于100重量份的乙烯基化合物。 在本发明的另一方面，悬浮剂是所述聚乙烯醇聚合物（A）和水解度小于60mol％的聚乙烯酯（B）的组合。 两种聚合物悬浮剂（A）/（B）的重量比为40/60至95/5。

公开(公告)号：US5065491A

公开(公告)日：1991-11-19

申请号：US420359

申请日：1989-10-12

申请人： Shigeki Takada

发明人： Shigeki Takada

IPC分类号： A44B19/34 ,  A44B19/42 ,  B21D53/50

CPC分类号： A44B19/34 ,  A44B19/42 ,  Y10T29/49782

摘要： A method of producing curved slide fastener chains or a curved slide fasteners is disclosed. Fastener elements are planted along respective one side edges of a pair of fastener tapes, at least one of which tapes is made of solvent-swelling fibers. The fastener elements planted on the respective tapes are inter-engaged with each other to form a fastener chain. A solvent or its aqueous solution, or a solution containing a solvent and dissolving a soluble adhesive, is applied onto either one of the fastener tapes made of solvent-swelling fibers. Subsequently, the fastener chain is shaped into a desired curved configuration. The shaped fastener chain has its curved configuration fixed by being served on a texture, by solidification of the adhesive dissolved in the solvent after evaporation of the solvent or by applying an adhesive onto the shaped fastener chain and solidifying the adhesive. By mounting a slider, upper stops and lower stops to the fastener chain before or after the above-described shaping, curved slide fasteners can be similarly produced.