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1.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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公开(公告)号：US4440703A
公开(公告)日：1984-04-03
申请号：US405027
申请日：1982-08-04
CPC分类号： C08J9/232 , B29K2023/00 , B29K2023/12 , C08J2323/16 , Y10S264/05 , Y10S264/15 , Y10S264/16
摘要： A process for producing a foamed and molded article of a polypropylene resin, which comprises pressurizing preliminarily-foamed particles of an ethylene/propylene copolymer having a melt index value of from 0.1 to 25, a latent heat of crystallization of not more than 28 cal/g and an ethylene content of from 1 to 30% by weight as a base resin with an inorganic gas or a gaseous mixture of the inorganic gas and a volatile blowing agent thereby to impart an elevated pressure to the inside of said particles, thereafter filling said particles in a mold capable of enclosing the particles but allowing escape of gases therefrom, and then heating said particles to expand them to the configuration of the mold.
摘要翻译： 一种聚丙烯树脂的发泡成型体的制造方法，其特征在于，对熔融指数值为0.1〜25的乙烯/丙烯共聚物的预发泡粒子进行加压，结晶潜热不超过28cal / g，乙烯含量为1至30重量％，作为基础树脂与无机气体或无机气体和挥发性发泡剂的气体混合物，从而将高压施加到所述颗粒的内部，然后将所述 能够封闭颗粒但允许气体逸出的模具中的颗粒，然后加热所述颗粒以将它们扩展到模具的构型。
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公开(公告)号：US4436840A
公开(公告)日：1984-03-13
申请号：US420874
申请日：1982-09-21
IPC分类号： B29C67/00 , B29B9/16 , B29C44/00 , B29C59/00 , B29K23/00 , B29K105/04 , C08J9/16 , C08J9/18 , C08J9/22 , B29D27/00
CPC分类号： C08J9/18 , C08J2203/142 , C08J2323/02 , Y10S264/09
摘要： In a process for producing pre-foamed particles of a polyolefin resin which comprises impregnating a volatile blowing agent into particles of a polyolefin resin while dispersing the resin particles and the blowing agent in a dispersing medium under heat in a closed vessel, opening one end of the vessel and releasing the resin particles and the dispersing medium simultaneously into an atmosphere kept at a lower pressure than the inside pressure of the vessel; the improvement wherein the pressure of the inside of the vessel after opening its one end is maintained at a substantially constant pressure which is at least 0.7 times the vapor pressure of the blowing agent before opening the end of the vessel.
摘要翻译： 在制造聚烯烃树脂的预发泡颗粒的方法中，其包括将挥发性发泡剂浸入聚烯烃树脂颗粒中，同时将树脂颗粒和发泡剂在密封容器中分散在分散介质中的加热分散介质中， 并将树脂颗粒和分散介质同时放入保持在低于容器内部压力的压力下的气氛中; 改进之处在于，在打开其一端之后，容器内部的压力保持在打开容器末端之前的发泡剂的蒸气压f的至少0.7倍的基本恒定的压力。
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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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5.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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6.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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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：US4806293A
公开(公告)日：1989-02-21
申请号：US37172
申请日：1987-04-10
IPC分类号： B29C47/00 , B29B11/06 , B29C44/06 , B29C44/34 , B29C44/38 , B29C44/42 , B29C47/50 , B29K105/04 , B29C67/22
CPC分类号： B29C44/421 , B29B11/06 , B29C44/10 , B29C47/368 , B29C2791/006 , B29C47/0009 , B29K2033/00 , B29K2105/253
摘要： Method of producing a molded article of a foamed thermoplastic resin. A molten mass of an expandable thermoplastic resin is accumulated in an accumulator while it is prevented from foaming. A predetermined quantity of the accumulated thermoplastic resin is ejected rapidly from the accumulator into the atmosphere so that the thermoplastic resin commences foaming. The ejected thermoplastic resin is placed in a mold cavity before the foaming expansion has been completed and is compressed. The expansion and molding of the ejected thermoplastic resin is completed in the mold while controlling the compression pressure to obtain a foamed molded article.
摘要翻译： 生产发泡热塑性树脂的模塑制品的方法。 可膨胀热塑性树脂的熔融物质在其被防止发泡的同时积聚在蓄液器中。 将预定量的积聚的热塑性树脂从蓄液器快速喷射到大气中，使得热塑性树脂开始发泡。 喷射的热塑性树脂在发泡膨胀完成并被压缩之前放置在模腔中。 喷射的热塑性树脂的膨胀和模塑在模具中完成，同时控制压缩压力以获得发泡成型制品。
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公开(公告)号：US4564774A
公开(公告)日：1986-01-14
申请号：US520687
申请日：1983-08-05
申请人： Korefumi Tashiro , Hiroyuki Akiyama
发明人： Korefumi Tashiro , Hiroyuki Akiyama
IPC分类号： H03K19/00 , H03K19/007 , H03K19/20 , H03K19/23 , H03K19/003
CPC分类号： H03K19/007
摘要： There is provided a logic device wherein an alternating input signal having a frequency which is one of two frequencies allotted to two input logical values, respectively, positive logic "1" and negative logic "0", is inputted to the device. An output logical value is decided depending on the determination which frequencies the input frequency coincides with or not, and an alternating output signal having a frequency which corresponds to the output logical value is delivered out of the device. The logic device, even when constituted with semiconductor elements, can have highly reliable fail-safe capability and can be reduced in size and weight.
摘要翻译： 提供了一种逻辑装置，其中具有分别为两个输入逻辑值的两个频率之一的频率的交替输入信号分别为正逻辑“1”和负逻辑“0”，输入到装置。 输出逻辑值根据确定输入频率与哪个频率一致而确定，并且具有与输出逻辑值相对应的频率的交替输出信号从装置传送出去。 逻辑装置即使由半导体元件构成也能够具有高可靠性的故障安全能力，并且可以减小尺寸和重量。
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10.发明授权
公开(公告)号：US4496627A
公开(公告)日：1985-01-29
申请号：US444191
申请日：1982-11-24
CPC分类号： H05K9/0067 , C04B32/005 , C08J9/224 , H01B1/20 , H01B1/22 , H01B1/24 , Y10S428/926 , Y10S428/938 , Y10T428/249957 , Y10T428/249958 , Y10T428/24999 , Y10T428/265 , Y10T428/2991 , Y10T428/2998
摘要： This invention provides an electrical conductive foam bead comprising a foamed bead core of a thermoplastic synthetic resin at least partially covered on the surface thereof with an electrical conductive layer, and a molded electrical conductive foamed article comprising a plurality of particulate bodies formed by mutually fusing such electrical conductive foam beads, the electrical conductive layers extending over all or a portion of the interface of the mutually fused particulate bodies. The conductive foam beads and molded conductive foamed articles both have improved antistatic effect and are used as packaging and cushioning materials, electromagnetic radiation shields, and the like.
摘要翻译： 本发明提供了一种导电泡沫珠粒，其包含热塑性合成树脂的至少部分地覆盖有导电层的热塑性合成树脂的发泡珠芯，以及模制的导电泡沫制品，其包括通过相互融合而形成的多个微粒体 导电泡沫珠，导电层在相互熔合的颗粒体的界面的全部或一部分上延伸。 导电泡沫珠粒和模塑的导电泡沫制品都具有改进的抗静电效果，并且用作包装和缓冲材料，电磁辐射屏蔽等。
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