公开(公告)号：US06822023B2

公开(公告)日：2004-11-23

申请号：US09998170

申请日：2001-12-03

申请人： John Bready Stuart ,  Steven Charles Skarke ,  Tetsuya Ogita ,  Takema Yamaguchi ,  Tomonori Iwamoto

发明人： John Bready Stuart ,  Steven Charles Skarke ,  Tetsuya Ogita ,  Takema Yamaguchi ,  Tomonori Iwamoto

IPC分类号： C08J300

CPC分类号： C08J9/16 ,  C08J9/0028 ,  C08J2203/14 ,  C08J2323/02 ,  C08J2323/10 ,  C08K5/34926 ,  Y10S521/907 ,  C08L23/02

摘要： Flame retardant polyolefin pre-expanded particles made of a resin composition comprising a polyolefin resin and a sterically hindered amine ether flame retardant, which can be molded with good moldability to give in-mold foamed articles which have an excellent flame resistance and do not generate harmful gas at the time of burning.

摘要翻译： 由包含聚烯烃树脂和空间位阻胺醚阻燃剂的树脂组合物制成的阻燃聚烯烃预发泡颗粒，其可以模塑成型，具有良好的成型性，得到具有优异阻燃性且不产生有害物质的模内发泡制品 燃烧时的气体。

公开(公告)号：US06576693B2

公开(公告)日：2003-06-10

申请号：US09919871

申请日：2001-08-02

申请人： Tetsuya Ogita ,  Takema Yamaguchi

发明人： Tetsuya Ogita ,  Takema Yamaguchi

IPC分类号： C08L520

CPC分类号： C08J9/0028 ,  C08J9/18 ,  C08J2323/10 ,  C08K5/20 ,  C08L23/142 ,  C08L23/10

摘要： The present invention aims at preparing polypropylene resin pre-expanded particles capable of providing an inmolded expanded article which prevents pollution of a mold by polypropylene powder at molding, packed products from being damaged by friction due to vibration at transport, and powder generation at the same time. Polypropylene resin pre-expanded particles comprising a resin composition containing a fatty acid amide compound is used.

公开(公告)号：US5430069A

公开(公告)日：1995-07-04

申请号：US79775

申请日：1993-06-22

申请人： Tetsuya Ogita ,  Kenichi Senda

发明人： Tetsuya Ogita ,  Kenichi Senda

IPC分类号： C08J9/18 ,  C08L23/08 ,  C08J9/16

CPC分类号： C08J9/18 ,  C08J2323/16 ,  C08L23/0815

摘要： A pre-expanded particle of a polyethylene resin based on a non-crosslinked linear very low density polyethylene having a density of 0.88 to 0.915 g/cm.sup.3 and a melt index of 0.1 to 20 g/10 min. which can be used to produce a cellular molded article having superior flexibility, excellent bonding together of the particles, and both large tensile strength and large elongation at break.

摘要翻译： 基于密度为0.88〜0.915g / cm 3，熔融指数为0.1〜20g / 10min的非交联线性非常低密度聚乙烯的聚乙烯树脂的预发泡粒子。 其可以用于制备具有优异的柔性，优异的颗粒结合在一起，并且具有大的拉伸强度和大的断裂伸长率的多孔模制品。

公开(公告)号：US5118456A

公开(公告)日：1992-06-02

申请号：US456398

申请日：1989-12-26

申请人： Kenichi Senda ,  Takamasa Imai ,  Tetsuya Ogita

发明人： Kenichi Senda ,  Takamasa Imai ,  Tetsuya Ogita

IPC分类号： C08J9/14 ,  C08J9/18

CPC分类号： C08J9/18 ,  C08J9/141 ,  C08J2203/14 ,  C08J2323/02

摘要： An improved process for preparing pre-expanded particles of a polyolefin resin, wherein polyolefin resin particles are dispersed in water in a pressure vessel, the particles are impregnated with a volatile blowing agent which is butane containing not less than 70 percent by weight of isobutane, the temperature of the mixture of particles in water is elevated to a temperature close to the melting point of the particles under a pressure equal to or higher than the vapor pressure of the blowing agent, and the mixture is released into a low pressure zone. The obtained pre-expanded particles are not fused together or adhered to each other, and are not shrunken. Environmental damage, such as destruction of the ozone layer, is avoided since fluorochlorocarbon is not used as a blowing agent.