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    Aromatic vinyl polymer resin composition and its molding
    171.
    发明申请
    Aromatic vinyl polymer resin composition and its molding 审中-公开

    公开(公告)号：US20060094821A1

    公开(公告)日：2006-05-04

    申请号：US11304660

    申请日：2005-12-16

    Applicant: Shogo Hirota ,  Ryozo Okumura ,  Makoto Wakabayashi

    Inventor： Shogo Hirota ,  Ryozo Okumura ,  Makoto Wakabayashi

    IPC: C08L53/00

    CPC classification number: C08J9/0061 ,  C08J9/122 ,  C08J2201/03 ,  C08J2325/06 ,  C08J2453/00 ,  C08L25/06 ,  C08L53/02 ,  C08L2666/24

    Abstract: Provided are an aromatic vinyl polymer resin composition capable of being molded into resin foam sheets having good surface smoothness and glossiness well balanced with the mechanical strength thereof even when the expansion ratio in molding is increased, and resin foam sheets and containers of the composition. The resin composition comprises (A) from 80 to 98% by mass of an aromatic vinyl polymer resin having a weight-average molecular weight measured through GPC of from 200,000 to 400,000, a ratio of weight-average molecular weight to number-average molecular weight ranging from 2.2 to 3.6, a number of branches of from 0.1 to 1.0 in one molecule having an absolute molecular weight of 1,190,000 measured through GPC-MALLS, and a melt flow rate of from 1.5 to 3.5 g/10 min, and (B) from 2 to 20% by mass of a styrene-diene block copolymer or its hydrogenate. This is molded into a resin foam sheet through extrusion foaming, and the sheet is thermoformed into containers.

    Thermoplastic foams made with methyl formate-based blowing agents
    173.
    发明申请
    Thermoplastic foams made with methyl formate-based blowing agents 审中-公开
    用甲酸甲酯发泡剂制成的热塑性泡沫塑料

    公开(公告)号：US20060052465A1

    公开(公告)日：2006-03-09

    申请号：US11122158

    申请日：2005-05-03

    Applicant: Yash Handa ,  Glenn Castner ,  Mohammad Zafar

    Inventor： Yash Handa ,  Glenn Castner ,  Mohammad Zafar

    IPC: C08J9/00

    CPC classification number: C08J9/149 ,  C08J2201/03 ,  C08J2203/12 ,  C08J2203/142 ,  C08J2325/06

    Abstract: A blowing agent blend for making thermoplastic polymer foams comprises methyl formate. The blowing agent blend can further comprise at least one co-blowing agent, preferably an environmentally friendly chemical species (e.g., non-VOC and/or non-HAP). The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a halogenated hydrocarbon, a hydrocarbon with polar, functional group(s), water or any combination thereof), or a chemical co-blowing agent, or combinations thereof. The blowing agent blend can comprise any combination of methyl formate and one or more co-blowing agents, wherein the preferred co-blowing agent is 1-chloro-1, 1-difluroethane (HCFC-142b). The thermoplastic polymer foam can be an alkenyl aromatic polymer foam, e.g. a polystyrene foam. The methyl formate-based blowing agent blends produce stable foams for various applications, including containers, packaging systems, as well as insulation boards and building materials. A process for the preparation of such foams is also provided.

    Abstract translation: 用于制备热塑性聚合物泡沫的发泡剂共混物包括甲酸甲酯。 发泡剂共混物可以进一步包含至少一种共发泡剂，优选环境友好的化学物质（例如，非VOC和/或非HAP）。 共发泡剂是物理共发泡剂（例如无机试剂，烃，卤代烃，具有极性的烃，官能团，水或其任何组合）或化学共吹 代理或其组合。 发泡剂共混物可以包括甲酸甲酯和一种或多种共发泡剂的任何组合，其中优选的共发泡剂是1-氯-1,1-二氟乙烷（HCFC-142b）。 热塑性聚合物泡沫可以是链烯基芳族聚合物泡沫，例如 聚苯乙烯泡沫。 基于甲酸甲酯的发泡剂混合物为各种应用产生稳定的泡沫，包括容器，包装系统以及绝缘板和建筑材料。 还提供了制备这种泡沫体的方法。

    Microcellular foam dielectric for use in transmission lines
    177.
    发明授权
    Microcellular foam dielectric for use in transmission lines 有权
    用于传输线路的微孔泡沫电介质

    公开(公告)号：US06956068B2

    公开(公告)日：2005-10-18

    申请号：US10197570

    申请日：2002-07-18

    Applicant: Daniel E. Bufanda ,  Karl Audenaerde

    Inventor： Daniel E. Bufanda ,  Karl Audenaerde

    IPC: C08J9/00 ,  H01B3/44

    CPC classification number: C08J9/0061 ,  C08J2201/03 ,  C08J2203/08 ,  C08J2323/02 ,  C08J2351/00 ,  C08J2423/00 ,  C08J2451/00 ,  H01B3/441

    Abstract: The present invention is directed to a novel foamed polymer material for use as a dielectric in electric transmission lines. The foam dielectric of the present invention is obtained from extrusion of a polymer alloy and a supercritical fluid, especially carbon dioxide. Specifically, the foam polymer dielectric is made by:(1) feeding a polymer alloy into an extruder and heating the polymer alloy,(2) feeding a supercritical fluid into the extruder,(3) mixing the polymer alloy and the supercritical fluid,(4) exiting the polymer alloy and the supercritical fluid from the extruder, and(5) passing the polymer alloy and the supercritical fluid through a crosshead.The foam dielectric of the present invention may be used in coaxial transmission lines. In this embodiment, an inner conductor is surrounded by the foam dielectric, which is further surrounded by a second conductor. Stripline and microstripline transmission lines may also be manufactured using the disclosed foam dielectric.

    Abstract translation: 本发明涉及一种用作电传输线路中的电介质的新型泡沫聚合物材料。 本发明的泡沫电介质由聚合物合金和超临界流体，特别是二氧化碳的挤出得到。 具体地说，泡沫聚合物电介质是通过以下方法制备的：（1）将聚合物合金进料到挤出机中并加热聚合物合金，（2）将超临界流体供入挤出机，（3）将聚合物合金和超临界流体 4）从挤出机中离开聚合物合金和超临界流体，和（5）使聚合物合金和超临界流体通过十字头。 本发明的泡沫电介质可以用于同轴传输线。 在该实施例中，内部导体被泡沫电介质包围，泡沫电介质被第二导体进一步包围。 也可以使用公开的泡沫电介质制造带状和微带线传输线。

    Plastic wood fiber foam structure and method of producing same
    178.
    发明授权
    Plastic wood fiber foam structure and method of producing same 失效
    塑木纤维泡沫结构及其制造方法

    公开(公告)号：US06936200B2

    公开(公告)日：2005-08-30

    申请号：US10005365

    申请日：2001-12-07

    Applicant: Chul B. Park ,  Ghaus M. Rizvi ,  Haiou Zhang

    Inventor： Chul B. Park ,  Ghaus M. Rizvi ,  Haiou Zhang

    IPC: B27N1/00 ,  B27N3/00 ,  B27N3/28 ,  B29C44/12 ,  B29C47/00 ,  B29C47/10 ,  B29C47/50 ,  C08J9/00 ,  B29C44/22

    CPC classification number: B29C47/0004 ,  B27N1/00 ,  B27N3/005 ,  B27N3/28 ,  B29C44/12 ,  B29C47/0014 ,  B29C47/1018 ,  B29C47/1045 ,  B29C47/366 ,  B29C47/369 ,  B29C47/50 ,  B29K2105/06 ,  B29K2105/16 ,  C08J9/0085 ,  C08J2201/03

    Abstract: A process for producing plastic/wood fiber composite foamed structures includes the steps of pre-drying wood fiber filler; mixing it with plastic to form a mixture; feeding the mixture into an extruder; introducing and mixing a blowing agent; subject the mixture to high shear forces and extruding the mixture to produce a plastic/wood fiber composite foamed structure. The filler has a degradation temperature and an active volatization temperature. During the pre-drying step the temperature is maintained below the degradation temperature. During the mixing step the mixing temperature is maintained below the active volatilizing temperature. During the introducing and mixing step a blowing agent is introduced into the plastic/wood fiber mixture and is mixed therewith to produce a plastic/wood fiber/gas mixture. During the subjecting step the plastic/wood fiber/gas mixture is subjected to high shear forces in the presence of high pressures and the temperature is maintained below an active volatilizing temperature.

    Abstract translation: 一种生产塑料/木纤维复合泡沫结构的方法包括：预干燥木纤维填料; 将其与塑料混合以形成混合物; 将混合物进料到挤出机中; 引入和混合发泡剂; 使混合物具有高剪切力并挤出混合物以产生塑料/木纤维复合泡沫结构。 填料具有降解温度和活性挥发温度。 在预干燥步骤期间，将温度保持在降解温度以下。 在混合步骤中，混合温度保持低于活性挥发温度。 在引入和混合步骤期间，将发泡剂引入塑料/木纤维混合物中并与其混合以产生塑料/木纤维/气体混合物。 在处理步骤期间，塑料/木纤维/气体混合物在高压存在下经受高剪切力，并将温度保持在活性挥发温度以下。

    Foamed polyolefin resin sheet
    180.
    发明授权
    Foamed polyolefin resin sheet 失效
    发泡聚烯烃树脂片

    公开(公告)号：US06908668B2

    公开(公告)日：2005-06-21

    申请号：US09993678

    申请日：2001-11-27

    Applicant: Satoshi Hanada ,  Ryuma Kuroda

    Inventor： Satoshi Hanada ,  Ryuma Kuroda

    IPC: C08J9/00 ,  B32B5/18 ,  B32B27/28 ,  B32B27/32 ,  C08J9/04 ,  B32B3/26 ,  B32B7/12 ,  C08F110/00

    CPC classification number: C08J9/04 ,  B32B5/18 ,  B32B27/28 ,  B32B27/32 ,  C08J2201/03 ,  C08J2323/02 ,  Y10T428/1376 ,  Y10T428/249953 ,  Y10T428/249981 ,  Y10T428/249987 ,  Y10T428/249988 ,  Y10T428/249989 ,  Y10T428/249991 ,  Y10T428/249992 ,  Y10T428/249993

    Abstract: An object of the present invention is to provide a foamed polyolefin resin sheet which exhibits a high adhesive strength when laminated with a layer formed of a saponified ethylene-vinyl ester copolymer and which still exhibits a high adhesive strength even when laminated with a layer of a thermoplastic resin having relatively low polarity such as a polyolefin resin. This object is attained by a foamed polyolefin resin sheet including a foamed polyolefin resin layer and a non-foamed surface layer formed of a thermoplastic resin composition having an A1/A2 ratio falling within a range between 1×10−8 and 1×10−1, wherein A1 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1700 to 1750 cm−1 and A2 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1455 to 1465 cm−1.

    Abstract translation: 本发明的目的是提供一种发泡聚烯烃树脂片，当与由皂化的乙烯 - 乙烯基酯共聚物形成的层层压时，其表现出高的粘合强度，并且即使当层压有 具有较低极性的热塑性树脂如聚烯烃树脂。 该目的通过包含发泡聚烯烃树脂层和由A1 / A2比落入1×10 -8以下的范围的热塑性树脂组合物形成的非发泡表面层的发泡聚烯烃树脂片来实现。 和1×10 -1，其中A1是热塑性树脂组合物在1700至1750cm -1的红外线波数区域内的红外吸收光谱的最大吸光度。 A2是在1455〜1465cm -1的红外线波数区域内的热塑性树脂组合物的红外吸收光谱的最大吸光度。

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