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公开(公告)号：US4716021A
公开(公告)日：1987-12-29
申请号：US883655
申请日：1986-07-09
申请人： Hiroyuki Akiyama , Susumu Izawa , Shigeru Okabe , Toru Yamaguchi
发明人： Hiroyuki Akiyama , Susumu Izawa , Shigeru Okabe , Toru Yamaguchi
CPC分类号： B01J3/04 , B01J19/18 , B29B13/02 , B29B7/12 , B01J2219/00094 , B01J2219/185
摘要： An apparatus is provided for the heat treatment of polyolefin resin particles. The apparatus is equipped with an autoclave in which the particles are heated and agitated in the presence of an aqueous medium and dispersing agent. The autoclave has a tilted bottom wall portion, over which an impeller, preferably, a turbine-type impeller is provided.
摘要翻译： 提供了一种用于聚烯烃树脂颗粒的热处理的设备。 该装置配备有高压釜，其中颗粒在水性介质和分散剂的存在下被加热和搅拌。 高压釜具有倾斜的底壁部分，在其上设置优选涡轮式叶轮的叶轮。
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公开(公告)号：US4889671A
公开(公告)日：1989-12-26
申请号：US192619
申请日：1988-05-11
CPC分类号： C08J9/228 , C08J2323/02 , Y10S264/09 , Y10S264/13 , Y10S264/15 , Y10S264/16
摘要： Prefoamed particles of a polyolefin resin are produced by dispersing starting particles of the polyolefin resin, which contains a volatile foaming agent, in a dispersant in a pressure vessel, heating the resultant dispersion to a temperature of at least the softening point of the starting particles in said pressure vessel and then opening the vessel at one end thereof so as to release the starting particles and dispersant into an atmosphere of a pressure lower than the internal pressure of the vessel. The release of the starting particles and dispersant is performed while feeding a heating liquid.
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3.发明授权
公开(公告)号：US4692507A
公开(公告)日：1987-09-08
申请号：US852574
申请日：1986-04-16
申请人： Hiroyuki Akiyama , Susumu Izawa , Hideki Kuwabara
发明人： Hiroyuki Akiyama , Susumu Izawa , Hideki Kuwabara
CPC分类号： C08J9/18 , C08J3/00 , C08J2203/142 , C08J2323/10 , Y10S264/09 , Y10S264/16
摘要： Propylene-base random copolymer particles suitable for use in the production of pre-foamed particles are obtained by heating starting copolymer particles of ethylene-propylene random copolymer to the crystallization temperature thereof and then quenching them in a medium at a temperature of (the crystallization temperature-30.degree. C.) or lower. Pre-foamed particles produced using the copolymer particles contain large cells are columnar in shape with an average diameter D of 1.7 mm or less and an L/D.gtoreq.1. They can thus provide foamed moldings which are substantially free of shrinkage and have good flexibility.
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4.发明授权
公开(公告)号：US4602082A
公开(公告)日：1986-07-22
申请号：US795431
申请日：1985-11-06
申请人： Hiroyuki Akiyama , Susumu Izawa , Hideki Kuwabara
发明人： Hiroyuki Akiyama , Susumu Izawa , Hideki Kuwabara
CPC分类号： C08J9/18 , C08J3/00 , C08J2203/142 , C08J2323/10 , Y10S264/09 , Y10S264/16
摘要： Disclosed herein are propylene-base random copolymer particles suitable for use in the production of pre-foamed particles. The copolymer particles are obtained by heating starting copolymer particles to the crystallization temperature thereof and then quenching them in a medium of (the crystallization temperature-30.degree. C.) or lower. Processes for obtaining the copolymer particles are also disclosed. Pre-foamed particles produced using the copolymer particles contain large cells. They can thus provide foamed moldings which are substantially free of shrinkage and have good flexibility.
摘要翻译： 本文公开了适用于生产预发泡颗粒的丙烯基无规共聚物颗粒。 通过将起始共聚物颗粒加热至其结晶温度，然后在（结晶温度-30℃）以下的介质中淬灭共聚物颗粒。 还公开了获得共聚物颗粒的方法。 使用共聚物颗粒生产的预发泡颗粒含有大的细胞。 因此，它们可以提供基本上没有收缩并具有良好柔性的泡沫模制品。
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5.发明授权Process for producing foamed polyolefin articles from aged pre-foamed particles of polyolefin resins 失效从聚烯烃树脂的老化的预发泡颗粒生产泡沫聚烯烃制品的方法
公开(公告)号：US4399087A
公开(公告)日：1983-08-16
申请号：US275620
申请日：1981-06-22
CPC分类号： C08J9/232 , C08J9/18 , C08J2203/142 , C08J2323/02 , Y10S264/05 , Y10S264/15 , Y10S264/16 , Y10S264/18
摘要： In a process for producing a foamed article of a polyolefin resin which comprises filling in a mold pre-foamed particles of a polyolefin resin containing a gaseous mixture consisting of an inorganic gas and a volatile organic blowing agent in their cells and heating them to mold a foamed article; the improvement wherein the pre-foamed particles of the resin are those in which the total pressure of the gaseous mixture is 1.4 to 2.5 kg/cm.sup.2 (abs.), with the partial pressure of the inorganic gas being maintained at 0.4 to 1.1 kg/cm.sup.2 (abs.) and the partial pressure of the volatile blowing agent at 0.8 to 1.6 kg/cm.sup.2 (abs.).
摘要翻译： 在制造聚烯烃树脂发泡体的方法中，包括在其单元中填充含有由无机气体和挥发性有机发泡剂组成的气态混合物的聚烯烃树脂的预发泡颗粒，并加热它们以模塑 发泡制品; 其中树脂的预发泡颗粒是气体混合物的总压力为1.4-2.5kg / cm2（绝对），其中无机气体的分压保持在0.4-1.1kg / cm 2（绝对），挥发性发泡剂的分压为0.8〜1.6kg / cm 2（绝对）。
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