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188 条记录 (耗时 0.017 秒)

    Foams of polyolefin/polystyrene resin mixture
    2.
    发明授权
    Foams of polyolefin/polystyrene resin mixture 失效
    聚烯烃/聚苯乙烯树脂混合物泡沫

    公开(公告)号：US4847150A

    公开(公告)日：1989-07-11

    申请号：US168122

    申请日：1988-01-29

    申请人： Noboru Takeda

    发明人： Noboru Takeda

    IPC分类号： C08J9/12 ,  B29C47/00 ,  B29K9/00 ,  B29K23/00 ,  B29K25/00 ,  B29K105/04 ,  C08J9/00 ,  C08J9/14 ,  C08L23/02 ,  C08L25/06 ,  C08L53/02

    CPC分类号： C08J9/0061 ,  C08L23/02 ,  C08L23/06 ,  C08L23/12 ,  C08J2323/02 ,  C08L2203/14 ,  Y10S264/05 ,  Y10S264/18 ,  Y10T428/249989

    摘要： A foam of a polyolefin/polystyrene resin mixture obtained by mixing a polyolefin resin and a polystyrene resin in the presence of a hydrogenated styrene/butadiene block copolyer, and subjecting the resultant mixed resinous composition to extrusion foaming, wherein;(1) said hydrogenated styrene/butadiene block copolymer comprises, as components before hydrogenation, 10 to 38% by weight of styrene and butadiene with a content of 1,2-bond type butadiene of 20 to 50% by weight based on butadiene, and;(2) said foam comprises a thin surface skin portion showing a value of 0.65 or more of the surface structural index S represented by the following formula:S=t/T.gtoreq.0.65 wherein t and T each represent a total light-transmission evaluated according to the method of ASTM D1003 with respect to a surface skin layer and an inner layer of the foam,is found to have the cushioning properties (or the foam properties) that enables elastic cushioning of a large load.

    摘要翻译： PCT No.PCT / JP87 / 00303 Sec。 371日期1988年1月29日第 102（e）日期1988年1月29日PCT提交1987年5月14日PCT公布。 出版物WO88 / 08864 日本特许公开1988年11月17日。1.一种聚烯烃/聚苯乙烯树脂混合物的泡沫体，其通过在氢化苯乙烯/丁二烯嵌段共聚物存在下混合聚烯烃树脂和聚苯乙烯树脂，并将所得混合树脂组合物进行挤出发泡，其中 ; （1）所述氢化苯乙烯/丁二烯嵌段共聚物作为氢化前的成分，含有10〜38重量％的丁二烯含量为20〜50重量％的苯乙烯和丁二烯，丁二烯为20〜50重量％， ; （2）所述泡沫体包含表面结构指数S的值为0.65以上的薄表面部分，该表面结构指数S由下式表示：S = t / T> / = 0.65其中t和T各自表示总的光传输 发现根据ASTM D1003的方法相对于表面表层和泡沫的内层进行评估具有使得能够进行大负载的弹性缓冲的缓冲性（或泡沫性）。

    Process for the production of expanded particles of a polypropylene resin
    6.
    发明授权
    Process for the production of expanded particles of a polypropylene resin 失效
    用于生产聚丙烯树脂发泡颗粒的方法

    公开(公告)号：US4676939A

    公开(公告)日：1987-06-30

    申请号：US742434

    申请日：1985-06-07

    申请人： Hideki Kuwabara

    发明人： Hideki Kuwabara

    IPC分类号： C08J9/00 ,  C08J9/228 ,  C08J9/22 ,  C08J9/30

    CPC分类号： C08J9/228 ,  C08J9/0023 ,  C08J9/0066 ,  C08J2323/02 ,  Y10S264/09 ,  Y10S264/16 ,  Y10S264/18 ,  Y10S521/921

    摘要： A process for the production of expanded particles, which comprises providing an aqueous dispersion containing expandable particles which are formed of a polypropylene resin and which contain a blowing agent and an expansion aid and maintained at a temperature higher than the softening point of the resin and under a pressurized condition, and subjecting the dispersion to a lower pressure so that the expandable particles are expanded. The expansion aid is organic or inorganic solids having a particle size of 0.1 to 150 .mu.m and a melting point higher than the temperature at which the expansion of the expandable particles is performed and serves to improve the expansion ratio.

    摘要翻译： 一种生产发泡颗粒的方法，其包括提供含有由聚丙烯树脂形成并且含有发泡剂和膨胀助剂并且保持在高于树脂软化点的温度下的可膨胀颗粒的水性分散体， 加压条件，并使分散体经受较低压力使得可膨胀颗粒膨胀。 膨胀助剂是粒径为0.1〜150μm，熔点比可膨胀粒子膨胀进行的温度高的有机或无机固体，用于提高发泡倍数。

    Method of aging expansion-molded body of polyolefin
    7.
    发明授权
    Method of aging expansion-molded body of polyolefin 失效
    聚烯烃老化膨胀成型体的方法

    公开(公告)号：US4631159A

    公开(公告)日：1986-12-23

    申请号：US676180

    申请日：1984-11-29

    申请人： Hirofumi Maeda ,  Kazuyoshi Watanabe ,  Naruhiko Akamatsu ,  Kenichi Senda ,  Shunichi Nishioka

    发明人： Hirofumi Maeda ,  Kazuyoshi Watanabe ,  Naruhiko Akamatsu ,  Kenichi Senda ,  Shunichi Nishioka

    IPC分类号： B29C44/00 ,  B29K23/00 ,  B29K105/04 ,  C08J9/232 ,  C08J9/36 ,  C08J9/22 ,  C08J3/24

    CPC分类号： C08J9/232 ,  C08J9/36 ,  C08J2323/02 ,  Y10S264/15 ,  Y10S264/16 ,  Y10S264/18

    摘要： A method for aging an expansion-molded body of polyolefin prepared by heating pre-expanded polyolefin particles within a mold involves cooling the molded body within the mold so that the molded body is not substantially smaller than the volume of the mold cavity and is temporarily expandable after being removed from the mold to not more than 110% relative to the volume in the mold cavity, removing the molded body from the mold, placing the molded body in an atmosphere substantially under atmospheric pressure and having a temperature of 25.degree. to 55.degree. C. lower than the melting point of the polyolefin while the volume of the molded body is 70 to 110% relative to the volume of the mold cavity and holding the molded body in this atmosphere until the temperature of the molded body is at least equal to the temperature of the atmosphere.

    摘要翻译： 通过在模具内加热预发泡聚烯烃颗粒而制备的聚烯烃发泡模塑体的老化方法包括在模具内冷却模制体，使得模制体基本上不小于模腔体积并且暂时可膨胀 在从模具中取出相对于模腔中的体积不超过11​​0％的范围内，将成型体从模具中取出，将成型体置于基本上大气压的气氛中，温度为25°〜55° C.低于聚烯烃的熔点，而成型体的体积相对于模腔体积为70〜110％，并将成型体保持在该气氛中，直到成型体的温度至少等于 气氛的温度。

    Method for manufacturing low density rubber foamed body
    8.
    发明授权
    Method for manufacturing low density rubber foamed body 失效
    低密度橡胶发泡体的制造方法

    公开(公告)号：US4596684A

    公开(公告)日：1986-06-24

    申请号：US525613

    申请日：1983-08-22

    申请人： Sadao Kumasaka ,  Shigeo Horikoshi

    发明人： Sadao Kumasaka ,  Shigeo Horikoshi

    IPC分类号： B29B11/14 ,  B29C44/02 ,  C08J9/00 ,  C08J9/10 ,  B29C67/22 ,  C08J3/24 ,  C08J9/06

    CPC分类号： C08J9/10 ,  B29B11/14 ,  B29C44/02 ,  C08J9/0061 ,  B29K2021/00 ,  B29K2105/256 ,  B29K2995/0063 ,  C08J2321/00 ,  Y10S264/05 ,  Y10S264/18

    摘要： A method for manufacturing a low density rubber foamed body is provided which comprises the steps of forming a sheet from a mixture of 100 parts by weight of natural rubber or a synthetic rubber, 10 to 80 parts by weight of a foaming agent, and 0.5 to 15% by weight of a crosslinking agent; enclosing said sheet within a mold and heating said mold under pressure from the exterior to thereby foam said sheet; forcibly cooling said mold; and releasing a foamed body from said mold. When 10 to 60 parts by weight of a thermoplastic synthetic resin are further added to the mixture, a rubber foamed body of still lower density and lower shrinking property is obtained.

    摘要翻译： 提供一种制造低密度橡胶发泡体的方法，其包括以下步骤：由100重量份的天然橡胶或合成橡胶的混合物形成片材，10至80重量份的发泡剂和0.5至 15重量％的交联剂; 将所述片材封装在模具内，并在外部压力下加热所述模具从而使所述片材发泡; 强制冷却模具; 并从所述模具中释放泡沫体。 另外，在混合物中进一步添加10〜60重量份的热塑性合成树脂时，得到密度更低，收缩性更低的橡胶发泡体。

    Method for producing earplugs of foamed plastic
    10.
    发明授权
    Method for producing earplugs of foamed plastic 失效
    泡沫塑料耳塞的生产方法

    公开(公告)号：US4459247A

    公开(公告)日：1984-07-10

    申请号：US353954

    申请日：1982-03-02

    申请人： Karl Rothemund

    发明人： Karl Rothemund

    IPC分类号： A61F11/08 ,  A61F11/10 ,  B29C44/04 ,  B29D27/00

    CPC分类号： A61F11/10 ,  B29C44/0407 ,  Y10S264/05 ,  Y10S264/18

    摘要： The invention relates to an earplug, produced with the use of a polysiloxane which is made foamable and cross-linkable by the use of expanding and cross-linking agents. The method for producing such an earplug comprises preshaping the polysiloxane together with the additives, then finally shaping the earplug in the foaming process and then tempering the finally shaped product.

    摘要翻译： 本发明涉及一种使用聚硅氧烷制造的耳塞，该聚硅氧烷通过使用膨胀和交联剂而可发泡和可交联。 制造这种耳塞的方法包括将聚硅氧烷与添加剂一起预成型，然后在发泡过程中最后成形耳塞，然后回火最终成型的产品。