PROCESS FOR THE PREPARATION OF EXPANDABLE POLYSTYRENE
    44.
    发明申请
    PROCESS FOR THE PREPARATION OF EXPANDABLE POLYSTYRENE 有权
    制备可膨胀聚苯乙烯的方法

    公开(公告)号:US20150175765A1

    公开(公告)日:2015-06-25

    申请号:US14413452

    申请日:2013-06-25

    Abstract: A process for the preparation of expandable polystyrene (EPS) containing particles of carbon black and/or graphite is disclosed, comprising: (a) forming a masterbatch by adding carbon black and/or graphite to styrene polymer, (b) adding said masterbatch to an organic phase comprising styrene and optional comonomers, and heating the organic phase to a temperature between 30 and 90° C., (c) mixing the organic phase with an aqueous phase comprising water and suspending agents preheated to a temperature between 80 and 120° C. which is higher than the temperature of the organic phase, and (d) polymerising in a suspension polymerisation reaction the styrene and optional comonomers contained in the mixed aqueous and organic phases, with an expanding agent being added before, during or after the polymerisation, wherein the styrene polymer in the masterbatch contains at least 1 000 ppm of dimers. The process gives an improved product.

    Abstract translation: 公开了一种制备含有炭黑和/或石墨颗粒的可发性聚苯乙烯(EPS)的方法,包括:(a)通过向苯乙烯聚合物中加入炭黑和/或石墨形成母料,(b)将所述母料加入到 包含苯乙烯和任选的共聚单体的有机相,并将有机相加热至30-90℃的温度,(c)将有机相与包含水的预混合有机相和预热至80℃和120℃之间的混合物混合 其高于有机相的温度,和(d)在悬浮聚合反应中聚合苯乙烯和混合水相和有机相中包含的任选的共聚单体,在聚合之前,期间或之后加入发泡剂 ,其中母料中的苯乙烯聚合物含有至少1000ppm的二聚体。 该过程提供了改进的产品。

    POROUS SYNTHETIC RESIN MOLDED PART AND METHOD OF PRODUCING THE SAME
    48.
    发明申请
    POROUS SYNTHETIC RESIN MOLDED PART AND METHOD OF PRODUCING THE SAME 审中-公开
    多孔合成树脂成型部件及其制造方法

    公开(公告)号:US20140217635A1

    公开(公告)日:2014-08-07

    申请号:US14258049

    申请日:2014-04-22

    Abstract: A method of producing a porous molded part includes a mixing process for mixing a granular porous organizer composed of a water-soluble compound, a porous forming assistant agent composed of a polyhydric alcohol, and a cross-linking agent composed of an organic peroxide with a thermoplastic resin composition having a glass transition temperature below 0° C. to obtain a molding material; a cross-linking and forming process for placing the molding material in a molding die and performing a heat press molding thereby progressing coincidentally a cross-linking reaction and a shape forming of a seal face to obtain a molded material; an extracting process for extracting the granular porous organizer from the molded material obtained in the cross-linking and forming process to obtain a porous molded part; and a drying process for drying the porous molded part obtained in the extracting process.

    Abstract translation: 多孔成型体的制造方法包括将由水溶性化合物构成的粒状多孔质组合物,由多元醇构成的多孔形成助剂和由有机过氧化物构成的交联剂与 具有玻璃化转变温度低于0℃的热塑性树脂组合物以获得模塑材料; 一种用于将成型材料放置在成型模具中并进行热压成型的交联和成型方法,从而巧合地进行交联反应和密封面的形状以获得模制材料; 从交联成形工序得到的成型体中提取颗粒状多孔质量组织体,得到多孔成型体的提取方法; 以及用于干燥在提取过程中获得的多孔成型部件的干燥方法。

    FOAM MOLDING METHOD, FOAMING AGENT AND FOAMED PLASTIC
    49.
    发明申请
    FOAM MOLDING METHOD, FOAMING AGENT AND FOAMED PLASTIC 有权
    泡沫成型方法,发泡剂和泡沫塑料

    公开(公告)号:US20140213676A1

    公开(公告)日:2014-07-31

    申请号:US14081273

    申请日:2013-11-15

    Abstract: A foam molding method, a foamed plastic formed by the method, and a foaming agent used in the foam molding method are provided. The foam molding method may include rotating a screw provided in a barrel, feeding a granular or powdered raw material and a foaming agent into the barrel, the foaming agent producing foam through a chemical reaction, melting the fed raw material and producing a gas from the foaming agent, and phase-changing the produced gas to a supercritical state and mixing the gas with the melted raw material.

    Abstract translation: 提供了一种发泡成型方法,通过该方法形成的发泡塑料和用于泡沫成型方法中的发泡剂。 泡沫成型方法可以包括旋转设置在桶中的螺杆,将颗粒状或粉末状原料和发泡剂进料到筒中,发泡剂通过化学反应生成泡沫,熔化进料的原料并从 发泡剂,并将生成的气体相变为超临界状态,并将气体与熔融原料混合。

    Fibre reinforced propylene foam
    50.
    发明授权
    Fibre reinforced propylene foam 有权
    纤维增强丙烯泡沫

    公开(公告)号:US08729144B2

    公开(公告)日:2014-05-20

    申请号:US12097219

    申请日:2006-11-15

    Abstract: The present invention relates to a foamed polypropylene composition comprising a propylene homo- and/or copolymer and glass fibres, wherein (i) the composition has a density of 50 to 950 kg/m3, (ii) the tensile modulus tm(extrusion direction) measured according to ISO 527 in extrusion direction and the k-value measured according to ASTM C-518 satisfy the relation: tm(extrusion direction) [MPa]/k [W/mK]≧9000 MPa·mK/W, to the use of said composition for the production of an insulating layer and to an article comprising said composition.

    Abstract translation: 本发明涉及包含丙烯均聚物和/或共聚物和玻璃纤维的发泡聚丙烯组合物,其中(i)组合物的密度为50至950kg / m 3,(ii)拉伸模量t m(挤出方向) 根据ISO 527在挤出方向测量,并且根据ASTM C-518测量的k值满足关系式:tm(挤出方向)[MPa] / k [W / mK]≥9000MPa·mK / W,使用 的用于制备绝缘层的组合物和包含所述组合物的制品。

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