公开(公告)号：US06870003B2

公开(公告)日：2005-03-22

申请号：US10257056

申请日：2002-02-25

申请人： Shigeo Nishikawa ,  Haruo Inoue ,  Naohiro Yamada

发明人： Shigeo Nishikawa ,  Haruo Inoue ,  Naohiro Yamada

IPC分类号： B01J3/00 ,  C08F8/00 ,  C08F8/46 ,  C08F291/00 ,  C08G85/00 ,  C08F255/06

CPC分类号： C08F255/02 ,  C08F222/06

摘要： A process for producing modified thermoplastic resin by subjecting a thermoplastic resin to a modifying reaction in a molten state, comprising performing the modifying reaction using carbon dioxide as the reaction medium, wherein carbon dioxide is used in a proportion of 2-200 parts by weight per 100 parts by weight of the thermoplastic resin, whereby the efficiency and the uniformity of the reaction can be increased to a high extent while attaining considerable decrease in the remaining amount of the unreacted components in the resulting modified thermoplastic resin without having recourse to the use of an organic reaction solvent, so that the production can be realized easily at a low cost in an efficient manner.

摘要翻译： 一种通过使热塑性树脂在熔融状态下进行改性反应来制备改性热塑性树脂的方法，包括使用二氧化碳作为反应介质进行改性反应，其中二氧化碳的用量为每份2-200重量份 100重量份的热塑性树脂，由此能够大幅度提高反应的效率和均匀性，同时可以显着降低得到的改性热塑性树脂中的未反应组分的剩余量，而不需要使用 有机反应溶剂，使得可以以低成本有效地实现生产。

公开(公告)号：US4327045A

公开(公告)日：1982-04-27

申请号：US133782

申请日：1980-03-25

申请人： Shigeo Nishikawa ,  Masaaki Yokoyama

发明人： Shigeo Nishikawa ,  Masaaki Yokoyama

IPC分类号： B29C67/00 ,  B29C44/00 ,  B29C44/58 ,  B29C59/00 ,  B29D27/00

CPC分类号： B29C44/445 ,  Y10S425/009

摘要： This invention relates to a cooling process suitable for foam molding of a synthetic resin and its cooling apparatus. Cooling water which is supplied into a flowing pressurized gas is turbulently jetted in the form of a mist into the overall area of respective chambers in a pair of molds. The mist, adhering uniformly to the overall walls of the molds remove latent heat from the mold surface, and consequently uniformly cool the entire mold. Further, a large quantity of steam generated from the mist as well as excess mist are forcibly discharged outside the chambers by a preferred suction means including a blower, etc., whereby the cooling effect on the walls of the molds is further enhanced.

摘要翻译： 本发明涉及适合于合成树脂的发泡成型及其冷却装置的冷却方法。 供给到流动的加压气体中的冷却水以雾的形式湍动地喷射到一对模具中的各室的整个区域中。 雾气均匀地附着在模具的整个壁上，从模具表面去除潜热，从而使整个模具均匀地冷却。 此外，通过优选的包括鼓风机等的抽吸装置，将从雾中产生的大量蒸汽以及多余的雾强制地排出室外，从而进一步提高了对模具壁的冷却效果。

公开(公告)号：US20130143014A1

公开(公告)日：2013-06-06

申请号：US13816605

申请日：2011-08-24

申请人： Tamio Kawasumi ,  Michio Eriguchi ,  Shigeo Nishikawa

发明人： Tamio Kawasumi ,  Michio Eriguchi ,  Shigeo Nishikawa

IPC分类号： B32B27/32 ,  B32B27/08 ,  D02G3/04 ,  B32B27/30

CPC分类号： B32B27/32 ,  B32B27/08 ,  B32B27/30 ,  B65D31/02 ,  D01D5/30 ,  D01D5/426 ,  D01F6/04 ,  D02G3/02 ,  D02G3/045 ,  D10B2401/046 ,  H01L23/373 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/73204 ,  Y10T428/2495 ,  Y10T428/31909 ,  Y10T428/3192 ,  H01L2924/00

摘要： The purpose of the present invention is to provide a shape retaining film excellent in shape retention, and further having high tensile elasticity and good longitudinal tear resistance. The shape retaining film is composed of at least one base material layer containing an ethylene polymer that has the density of 900 kg/m3 or more, and the weight-average molecular weight (Mw)/number-average molecular weight (Mn) of 5 to 20, and at least one soft layer containing a high polymer material. The ethylene polymer is an ethylene homopolymer or an ethylene-α-olefin copolymer in which the content of a-olefin unit having 3 to 6 carbon atoms is less than 2% by weight, The high polymer material has the melting point (Tm2) lower than the melting point (Tm1) of the ethylene polymer, the tensile elasticity of 10 to 50 GPa, and the recovery angle of 65° or less as a result of 180° bending, test.

摘要翻译： 本发明的目的是提供一种形状保持性优异的形状保持膜，并且还具有高的拉伸弹性和良好的纵向抗撕裂性。 形状保持膜由至少一层含有密度为900kg / m 3以上的乙烯聚合物的基材层构成，重均分子量（Mw）/数均分子量（Mn）为5 至少20个，以及含有高分子材料的至少一层软层。 乙烯聚合物是乙烯均聚物或乙烯-α-烯烃共聚物，其中碳原子数为3〜6的α-烯烃单元的含量小于2重量％。高分子材料的熔点（Tm2）较低 比180℃弯曲试验的结果，乙烯聚合物的熔点（Tm1），拉伸弹性为10〜50GPa，回收角为65°以下。

公开(公告)号：US5997781A

公开(公告)日：1999-12-07

申请号：US829603

申请日：1997-03-31

申请人： Shigeo Nishikawa ,  Kaoru Yorita ,  Kouzo Ichikawa ,  Haruo Inoue ,  Michio Eriguchi ,  Takanori Sueda ,  Hideo Amemiya

发明人： Shigeo Nishikawa ,  Kaoru Yorita ,  Kouzo Ichikawa ,  Haruo Inoue ,  Michio Eriguchi ,  Takanori Sueda ,  Hideo Amemiya

IPC分类号： B29C44/04 ,  B29C44/34 ,  B29C44/42 ,  C08J9/12 ,  B29D67/20

CPC分类号： B29C44/348 ,  B29C44/0415 ,  B29C44/421 ,  C08J9/122 ,  Y02P20/544 ,  Y10S264/13

摘要： Disclosed is a process for the production of an injection-expansion molded, thermoplastic resin product. The process comprises a gas dissolving step, a cooling step, a metering and injection step, and an expansion controlling step. Specifically, a thermoplastic resin is molten in a continuous plasticator (1), supercritical carbon dioxide and/or nitrogen is added as a blowing agent, and the blowing agent and the thermoplastic resin are formed into a mutually-dissolved state. The resultant molten resin composition is cooled within the plasticator while maintaining a pressure equal to or higher than a critical pressure of the blowing agent. The thus-cooled molten resin composition is metered by an injector (7) and is filled in a mold (8). An internal pressure of the mold is lowered beyond the critical pressure of the blowing agent to produce cell nuclei, whereby the cell diameter is controlled. The blowing agent is maintained in a supercritical state up to the metering and injection step.

摘要翻译： 公开了一种用于生产注射膨胀模制的热塑性树脂产品的方法。 该方法包括气体溶解步骤，冷却步骤，计量和注入步骤以及膨胀控制步骤。 具体地说，热塑性树脂在连续塑化器（1）中熔融，加入超临界二氧化碳和/或氮作为发泡剂，发泡剂和热塑性树脂形成相互溶解状态。 将所得熔融树脂组合物在塑化器内冷却，同时保持等于或高于发泡剂临界压力的压力。 如此冷却的熔融树脂组合物由注射器（7）计量并填充在模具（8）中。 模具的内部压力降低到超过发泡剂的临界压力以产生细胞核，从而控制细胞直径。 发泡剂维持在超临界状态直到计量和注射步骤。

公开(公告)号：US5830393A

公开(公告)日：1998-11-03

申请号：US887323

申请日：1997-07-02

申请人： Shigeo Nishikawa ,  Kaoru Yorita ,  Kouzo Ichikawa ,  Haruo Inoue ,  Michio Eriguchi ,  Takanori Sueda ,  Hideo Amemiya

发明人： Shigeo Nishikawa ,  Kaoru Yorita ,  Kouzo Ichikawa ,  Haruo Inoue ,  Michio Eriguchi ,  Takanori Sueda ,  Hideo Amemiya

IPC分类号： B29C44/34 ,  B29C44/46 ,  B29D27/00

CPC分类号： B29C44/461 ,  B29C44/3446 ,  B29C44/348 ,  Y10S264/13

摘要： A process for preparing an expanded product of a thermoplastic resin which includes a gas dissolving step of adding supercritical carbon dioxide and/or nitrogen as an blowing agent to a thermoplastic resin, and melting it in the thermoplastic resin, a cooling step of cooling the resulting molten resin composition under a pressure not less than a critical pressure of the blowing agent, a nuclei forming step of discharging the molten resin composition from a die to lower the pressure to a level not more than the critical pressure, and an expansion controlling step of cooling an expanded product of the thermoplastic resin to a level not more than a glass transition temperature or a crystallization temperature of the resin to control a cell diameter of the expanded product.

摘要翻译： 一种制备热塑性树脂的发泡产品的方法，包括将超临界二氧化碳和/或氮气作为发泡剂加入到热塑性树脂中并在热塑性树脂中熔化的气体溶解步骤，冷却步骤， 在不低于发泡剂的临界压力的压力下的熔融树脂组合物，将熔融树脂组合物从模具中排出以将压力降低到临界压力以下的成核步骤，以及膨胀控制步骤 将热塑性树脂的发泡产品冷却至不超过树脂的玻璃化转变温度或结晶温度的水平，以控制膨胀产品的泡孔直径。

公开(公告)号：US4698191A

公开(公告)日：1987-10-06

申请号：US823733

申请日：1986-01-29

申请人： Hiroshi Endo ,  Masakazu Arai ,  Shigeo Nishikawa ,  Masanori Saito ,  Masahiro Tanaka ,  Kunikazu Nagasaki ,  Shigeki Mathuno

发明人： Hiroshi Endo ,  Masakazu Arai ,  Shigeo Nishikawa ,  Masanori Saito ,  Masahiro Tanaka ,  Kunikazu Nagasaki ,  Shigeki Mathuno

IPC分类号： C08J9/18 ,  C08J9/22 ,  C08J9/232 ,  C08L23/10

CPC分类号： C08J9/232 ,  B29C44/445 ,  B29K2023/12 ,  C08J2323/10 ,  Y10S264/15 ,  Y10S264/16

摘要： A method of producing a polypropylene resin molded product from foamed polypropylene particles is disclosed, which comprises introducing a pressurizing gas into foamed polypropylene particles having closed cells so that the particles have an internal gas pressure of from 0.3 to 2.5 Kg/cm.sup.2 G, charging the particles in a mold cavity while compressing the particles with a pressurizing inorganic gas until the initial apparent volume of the particles is reduced to 50 to 99%, removing the gas from the mold cavity while keeping the foamed particles in a compressed state, and introducing steam in the cavity to cause adhesion of the compressed foamed particles. The method produces a molded product having satisfactory appearance and excellent adhesion among particles in a shortened molding cycle.

摘要翻译： 公开了一种从发泡聚丙烯颗粒生产聚丙烯树脂模制产品的方法，其包括将加压气体引入具有闭孔的发泡聚丙烯颗粒中，使得颗粒的内部气体压力为0.3至2.5Kg / cm2G， 在模具腔内，同时用加压无机气体压缩颗粒，直到颗粒的初始表观体积减小到50至99％，在保持发泡颗粒处于压缩状态的同时从模腔中除去气体，并将蒸汽引入 空腔使压缩的泡沫颗粒粘附。 该方法在缩短的成型周期中产生具有令人满意的外观和优异的颗粒粘附性的模制产品。