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7 条记录 (耗时 0.029 秒)

    Expanded particles of polyolefin resin and process for producing same
    1.
    发明授权
    Expanded particles of polyolefin resin and process for producing same 失效
    聚烯烃树脂的膨胀颗粒及其制造方法

    公开(公告)号：US4448901A

    公开(公告)日：1984-05-15

    申请号：US494394

    申请日：1983-05-13

    申请人： Kenichi Senda ,  Masao Ando ,  Kyoichi Nakamura ,  Kiyoshi Mori ,  Tatehiko Nishida

    发明人： Kenichi Senda ,  Masao Ando ,  Kyoichi Nakamura ,  Kiyoshi Mori ,  Tatehiko Nishida

    IPC分类号： B29C44/34 ,  C08J9/18

    CPC分类号： C08J9/18 ,  B29C44/3461 ,  C08J2203/142 ,  C08J2323/02 ,  Y10S264/09

    摘要： The mixture of water and the polyolefin resin particles impregnated with a volatile blowing agent are released from the interior of the pressure-resistant container under a constant temperature and constant pressure preferably keeping the partial pressure of the blowing agent constant, through at least one orifice having an area of 0.07 to 300 mm.sup.2, into a low-pressure zone.This invention gives various advantages when applied to the practical process resulting in expanded particles with superior properties which are free of blocking and remarkably uniform in the degree of expansion, and are useful for molding.

    摘要翻译： 浸渍有挥发性发泡剂的水和聚烯烃树脂颗粒的混合物在恒定温度和恒定压力下从耐压容器的内部释放，优选通过至少一个具有 面积为0.07至300平方毫米，进入低压区。 本发明在应用于实际工艺的过程中给出了各种各样的优点，从而产生具有优异性能的膨胀颗粒，其在膨胀程度上不受阻塞和显着均匀，并且可用于模制。

    Pre-expanded particle of polyolefine and process for preparing the same
    3.
    发明授权
    Pre-expanded particle of polyolefine and process for preparing the same 失效
    聚烯烃的预发泡颗粒及其制备方法

    公开(公告)号：US4540718A

    公开(公告)日：1985-09-10

    申请号：US584859

    申请日：1984-02-29

    申请人： Kenichi Senda ,  Masao Ando ,  Kyoichi Nakamura ,  Tatehiko Nishida

    发明人： Kenichi Senda ,  Masao Ando ,  Kyoichi Nakamura ,  Tatehiko Nishida

    IPC分类号： C08J9/18 ,  C08J9/228

    CPC分类号： C08J9/228 ,  C08J9/18 ,  C08J2203/142 ,  C08J2323/02 ,  Y10S264/09

    摘要： A pre-expanded particle suitable for foaming in a mold comprising polyolefin which has a characteristic property that an inclination of slope line obtained on a graph when logarithmic values of melt tension of the polyolefin are plotted as ordinate and reciprocals of absolute temperature at which the melt tension is measured are plotted as abscissa is less than 1,500 is provided. A foamed article produced from the pre-expanded particles has an excellent appearance, a flat surface and good mechanical strength, and is useful for wrapping material, insulating material, a container or a fender of cars.A process for preparing the above-mentioned pre-expanded particles is also disclosed.

    摘要翻译： 适用于在包含聚烯烃的模具中发泡的预发泡颗粒，其具有以下特征：当聚烯烃的熔体张力的对数值作为纵坐标和绝对温度的倒数绘制时，在曲线图上获得的斜率线的倾斜度为特征， 测量的张力绘制为横坐标小于1,500。 由预发泡颗粒制成的发泡制品具有优异的外观，平坦的表面和良好的机械强度，并且可用于包装材料，绝缘材料，容器或汽车挡泥板。 还公开了制备上述预发泡颗粒的方法。

    Expanded shaped article comprising a heat resistant synthetic resin
    6.
    发明授权
    Expanded shaped article comprising a heat resistant synthetic resin 失效
    包括耐热合成树脂的膨胀成型制品

    公开(公告)号：US4424286A

    公开(公告)日：1984-01-03

    申请号：US412597

    申请日：1982-08-30

    申请人： Masao Nakagawa ,  Tatehiko Nishida

    发明人： Masao Nakagawa ,  Tatehiko Nishida

    IPC分类号： C08J9/20 ,  C08J9/18

    CPC分类号： C08J9/20 ,  C08J2325/02 ,  Y10S264/09

    摘要： An expanded shaped article of a heat resistant synthetic resin comprising 20 to 100 weight percent tertiary butyl styrene and 80 to 0 weight percent other monomers polymerizable therewith, and containing volatile foaming agent, wherein expandable particles of said resin are pre-expanded by application of heat and then molded by application of heat to produce shaped articles. Extrusion foaming may be used to form the article.

    摘要翻译： 一种耐热合成树脂的膨胀成型制品，其包含20至100重量％的叔丁基苯乙烯和80至0重量％的可与其聚合的其它单体，并含有挥发性发泡剂，其中所述树脂的可发泡颗粒通过加热预扩展 然后通过加热成型以产生成形制品。 可以使用挤出发泡来形成制品。

    Heat resistant expandable plastic particles and molded articles produced therefrom
    7.
    发明授权
    Heat resistant expandable plastic particles and molded articles produced therefrom 失效
    耐热可膨胀塑料颗粒和由其制成的模塑制品

    公开(公告)号：US4438222A

    公开(公告)日：1984-03-20

    申请号：US458053

    申请日：1983-01-14

    申请人： Masao Nakagawa ,  Tatehiko Nishida

    发明人： Masao Nakagawa ,  Tatehiko Nishida

    IPC分类号： C08F212/12 ,  C08J9/16 ,  C08K5/00 ,  C08J9/18

    CPC分类号： C08J9/16 ,  C08F212/12

    摘要： This invention produces heat resistant expandable plastic particles by the method of emulsion polymerization, containing .alpha.-alkylstyrene 15-55 weight %, another polymerizable monomer 85-45 weight %, and a readily volatile blowing agent 3-15 weight % as chief ingredients, and offers the expandable plastic molded articles with high heat resistance and high dimensional stability produced by prefoaming the expandable polymerizate particles with heating at a pressure of more than 0.1 kg/cm.sup.2 G followed by heat-molding in a metallic mold.

    摘要翻译： 本发明通过乳液聚合方法生产耐热可膨胀塑料颗粒，其含有15-55重量％的α-烷基苯乙烯，另一个可聚合单体85-45重量％，以挥发性发泡剂为主要成分3-15重量％，以及 提供具有高耐热性和高尺寸稳定性的可膨胀塑料模塑制品，其通过在大于0.1kg / cm2G的压力下加热预发泡可膨胀聚合物颗粒，然后在金属模具中进行热成型。