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    Foamed rubber extruded product
    1.
    发明授权
    Foamed rubber extruded product 失效
    发泡橡胶挤出产品

    公开(公告)号：US6132847A

    公开(公告)日：2000-10-17

    申请号：US186881

    申请日：1998-11-06

    申请人： Tomoaki Okita ,  Katsumi Nakashima ,  Takashi Mizushima ,  Norikazu Mayama ,  Hitoshi Kondo

    发明人： Tomoaki Okita ,  Katsumi Nakashima ,  Takashi Mizushima ,  Norikazu Mayama ,  Hitoshi Kondo

    IPC分类号： C08J9/06 ,  B29C47/00 ,  B29K21/00 ,  B29K23/00 ,  B29K105/04 ,  C08J9/00 ,  C08J9/10 ,  C08K9/04 ,  C08L23/16

    CPC分类号： C08J9/0066 ,  C08J9/10 ,  C08J2323/16 ,  Y10T428/24504 ,  Y10T428/269

    摘要： A formed rubber extruded product which is formed of a vulcanizate of a rubber blend comprising a sulfur-vulcanizable ethylene-propylene-type rubber (EPDM) as a starting rubber and a pyrolytic foaming agent. The vulcanizate has a specific gravity of from 0.9 to 1.0 and a surface roughness (RZD) of 14 micrometers or less. The rubber blend contains the pyrolytic foaming agent in the form of an inorganic powder-supported foaming agent. A particle diameter of the inorganic powder in the inorganic powder-supported foaming agent is approximately 9 micrometers or less, and a particle diameter of the pyrolytic foaming agent is approximately 8 micrometers or less. Further, crystalline PE is contained in an amount of from 6 to 30 parts per 100 parts of EPDM. The foamed rubber extruded product of the present invention can be produced by the extrusion at a high rate.

    摘要翻译： 一种形成的橡胶挤出产品，由橡胶混合物硫化橡胶制成，该橡胶混合物含有作为起始橡胶的可硫化乙烯 - 丙烯类橡胶（EPDM）和热解发泡剂。 硫化橡胶的比重为0.9〜1.0，表面粗糙度（RZD）为14微米以下。 橡胶混合物含有无机粉末负载发泡剂形式的热解发泡剂。 无机粉末负载发泡剂中的无机粉末的粒径为约9微米以下，热解发泡剂的粒径为约8微米以下。 此外，结晶PE的含量为每100份EPDM为6〜30份。 本发明的发泡橡胶挤出产品可以通过高速挤出制造。

    Foam rubber composition and a molded product of foam rubber
    2.
    发明授权
    Foam rubber composition and a molded product of foam rubber 失效
    泡沫橡胶组合物和泡沫橡胶的模制产品

    公开(公告)号：US6040351A

    公开(公告)日：2000-03-21

    申请号：US90996

    申请日：1998-06-05

    申请人： Tomoaki Okita ,  Katsumi Nakashima ,  Takashi Mizushima ,  Takeru Wadaki

    发明人： Tomoaki Okita ,  Katsumi Nakashima ,  Takashi Mizushima ,  Takeru Wadaki

    IPC分类号： C08J9/10 ,  C08K5/3495 ,  C08L23/16 ,  C08L23/20

    CPC分类号： C08J9/107 ,  C08L23/16 ,  C08J2323/16 ,  C08L2203/14 ,  C08L2205/02 ,  C08L2312/00

    摘要： A foam rubber composition and a method for making same which is foamable to a high degree and a molded product made from the foam rubber composition wherein the compositions has: (A) a low-molecular Ethylene-propylene-5-ethylidene-2-norbornene terpolymer having a Mooney viscosity (ML.sub.1+4 at 100.degree. C.) of 20 to 40, an ethylene/propylene ratio by weight of 65/35 to 50/50, an iodine value of 20 to 30, and a Q value (Mw/Mn) not exceeding 3 as determined by gel permeation chromatography; (B) a high-molecular ethylene-propylene-5-ethylidene-2-norbornene terpolymer having a Mooney viscosity (ML.sub.1+4 at 100.degree. C.) of 100 to 300, an ethylene/propylene ratio by weight of 65/35 to 50/50, an iodine value of 20 to 30 and a Q value (Mw/Mn) of 6 to 10; (C) a vulcanizing system agent containing sulfur as a vulcanizer, and zinc carbamate and sulfenamide as accelerators; and (D) a foaming agent containing N, N'-dinitrosopentamethylenetetramine and urea.

    摘要翻译： 泡沫橡胶组合物及其制造方法高发泡性和由泡沫橡胶组合物制成的成型品，其中组合物具有：（A）低分子量乙烯 - 丙烯-5-亚乙基-2-降冰片烯 门尼粘度（100℃时ML1 + 4）为20〜40，乙烯/丙烯重量比为65/35〜50/50，碘值为20〜30，Q值（Mw / Mn）不超过3，通过凝胶渗透色谱法测定; （B）门尼粘度（100℃时ML1 + 4）为100〜300的高分子乙烯 - 丙烯-5-亚乙基-2-降冰片烯三元共聚物，乙烯/丙烯的重量比为65/35〜 50/50，碘值为20〜30，Q值（Mw / Mn）为6〜10; （C）硫化硫化剂的硫化体系试剂，氨基甲酸锌和次磺酰胺作为加速剂; 和（D）含有N，N'-二亚硝基五亚甲基四胺和尿素的发泡剂。

    Foamed rubber blend containing and ethylene-propylene-diene polymer blend and an article formed from a sulfur-vulcanized foamed rubber blend
    3.
    发明授权
    Foamed rubber blend containing and ethylene-propylene-diene polymer blend and an article formed from a sulfur-vulcanized foamed rubber blend 失效
    含发泡橡胶混合物和乙烯 - 丙烯 - 二烯聚合物共混物和由硫磺硫化的发泡橡胶共混物形成的制品

    公开(公告)号：US5973017A

    公开(公告)日：1999-10-26

    申请号：US972573

    申请日：1997-11-18

    申请人： Tomoaki Okita ,  Takashi Mizushima ,  Katsumi Nakashima

    发明人： Tomoaki Okita ,  Takashi Mizushima ,  Katsumi Nakashima

    IPC分类号： C08J9/10 ,  C08J9/00 ,  C08L23/16

    CPC分类号： C08J9/0061 ,  C08J9/0033 ,  C08L23/16 ,  C08J2323/16 ,  C08J2423/00 ,  C08L2205/02 ,  C08L2205/025

    摘要： A foamed rubber blend comprising an EPDM is polymer blend comprising at least one high molecular weight component and at least one low molecular weight component is provided. The high molecular weight component has a weight average molecular weight (Mw) in a range of from about 400,000 to about 800,000 and a molecular weight distribution index (Mw/Mn) in a range of from about 5.5 to about 9.5. The low molecular weight component has a weight average molecular weight (Mw) in a range of from about 150,000 to about 500,000 and a molecular weight distribution index (Mw/Mn) in a range of from about 1.5 to about 5.5. The EPDM rubber has an overall weight average molecular weight (Mw) in a range of from about 200,000 to about 700,000. The ratio of the polymer blend in the foamed rubber blend is in a range of from about 33 wt % to about 60 wt %. The present invention is also directed to an article formed from a sulfur-vulcanized EPDM rubber blend having a compression set according to JIS K 6301 of not more than about 24%.

    摘要翻译： 包含EPDM的发泡橡胶共混物是包含至少一种高分子量组分和至少一种低分子量组分的聚合物共混物。 高分子量组分的重均分子量（Mw）为约400,000至约800,000，分子量分布指数（Mw / Mn）为约5.5至约9.5。 低分子量组分的重均分子量（Mw）为约150,000至约500,000，分子量分布指数（Mw / Mn）为约1.5至约5.5。 EPDM橡胶的总重均分子量（Mw）在约200,000至约700,000的范围内。 泡沫橡胶共混物中聚合物共混物的比例在约33wt％至约60wt％的范围内。 本发明还涉及由根据JIS K 6301的压缩永久变形的硫磺化EPDM橡胶共混物形成的制品不超过约24％。

    Kneaded rubber for expandable formulation
    4.
    发明授权
    Kneaded rubber for expandable formulation 失效
    可扩展配方的揉搓橡胶

    公开(公告)号：US06268428B1

    公开(公告)日：2001-07-31

    申请号：US09353660

    申请日：1999-07-15

    申请人： Tomoaki Okita ,  Katsumi Nakashima ,  Hidenari Nakahama

    发明人： Tomoaki Okita ,  Katsumi Nakashima ,  Hidenari Nakahama

    IPC分类号： C08L2316

    CPC分类号： C08J9/0061 ,  C08J2205/052 ,  C08J2323/16 ,  C08J2423/00 ,  C08L23/16 ,  C08L23/20 ,  C08L2203/14 ,  C08L2666/04

    摘要： A kneaded rubber for expandable formulation, such as a material for die forming. The polymer components in the kneaded rubber principally comprise a polymer alloy, further comprising a sea phase of a ethylene/&agr;-olefin/non-olefin/non-conjugated polyene terpolymer rubber and an island phase of a polyolefin resin. The polyolefin resin wholly or largely comprises a monomer C4-C6 &agr;-olefin and has an MFR of at least 15 g/10 min at 190° C. under a load of 2.196 kgf according to ASTMD 1238. The kneaded rubber satisfies the following Mooney viscosity profile formula according to JIS K 6300: (ML1+480° C.)−(ML1+4160° C.)≧15.

    摘要翻译： 用于可膨胀制剂的捏合橡胶，例如用于模具成型的材料。 捏合橡胶中的聚合物组分主要包括聚合物合金，还包括乙烯/α-烯烃/非烯烃/非共轭多烯三元共聚物橡胶的海相和聚烯烃树脂的岛相。 聚烯烃树脂完全或大部分包含单体C 4 -C 6α-烯烃，并且根据ASTMD 1238，在190℃，2.196kgf负荷下MFR为至少15g / 10min。捏合橡胶满足以下Mooney 根据JIS K 6300的粘度分布公式：

    Multi-layer rubber hose and method for producing the same
    6.
    发明授权
    Multi-layer rubber hose and method for producing the same 失效
    多层橡胶软管及其制造方法

    公开(公告)号：US5356681A

    公开(公告)日：1994-10-18

    申请号：US43019

    申请日：1993-04-05

    申请人： Masayoshi Ichikawa ,  Tomoaki Okita

    发明人： Masayoshi Ichikawa ,  Tomoaki Okita

    IPC分类号： B29C47/00 ,  B29C65/02 ,  B29C69/02 ,  B29K21/00 ,  B32B1/08 ,  B32B25/14 ,  C08J5/12 ,  F16L11/04 ,  F16L11/08 ,  B29D9/00

    CPC分类号： F16L11/08 ,  Y10S138/03 ,  Y10T428/1386 ,  Y10T428/139 ,  Y10T428/3154 ,  Y10T428/31826 ,  Y10T428/31935

    摘要： A multi-layer rubber hose in which a fluorinated rubber (FKM) layer and a nitrile rubber (NBR) layer adjacent thereto have been vulcanization-adhered to each other. The FKM layer is formed from the vulcanizate of an FKM compound containing a ternary FKM as a polymer component. The vulcanization system is an organic polyol system and a quaternary ammonium salt, and the vulcanization induction time (T.sub.10) satisfies the following equation, 4 minutes .ltoreq.T.sub.10 +determined vulcanization temperature -170.degree. C.) minutes/10.degree. C..ltoreq.7 minutes. The NBR layer is formed from the vulcanizate of the NBR compound, and the NBR comound is a stock rubber into which a functional group having an active hydrogen has been introduced. The vulcanization system is an oragnic peroxide system. The multi-layer rubber hose of the presnt invention is suitable as a fuel hose for cars and has a high resistance to gasohol.

    摘要翻译： 其中与其相邻的氟化橡胶（FKM）层和丁腈橡胶（NBR）层已被硫化粘合的多层橡胶软管。 FKM层由含有作为聚合物成分的三元FKM的FKM化合物的硫化物形成。 硫化体系是有机多元醇体系和季铵盐，硫化诱导时间（T10）满足下式，4分钟= T10 +测定硫化温度-170℃）分钟/ 10℃。 / = 7分钟。 NBR层由NBR化合物的硫化物形成，NBR化合物是已经引入具有活性氢的官能团的原料橡胶。 硫化系统是一种过氧化物系统。 本发明的多层橡胶软管适用于汽车的燃料软管，并且具有高的耐汽油性。

    Acrylic rubber composition
    8.
    发明授权
    Acrylic rubber composition 失效
    丙烯酸橡胶组合物

    公开(公告)号：US4904736A

    公开(公告)日：1990-02-27

    申请号：US206133

    申请日：1988-06-13

    申请人： Hiroaki Shimizu ,  Yasushi Abe ,  Masayoshi Ichikawa ,  Tomoaki Okita

    发明人： Hiroaki Shimizu ,  Yasushi Abe ,  Masayoshi Ichikawa ,  Tomoaki Okita

    IPC分类号： C08F220/18 ,  C08K5/00

    CPC分类号： C08F220/18 ,  C08K5/0025

    摘要： An acrylic rubber composition comprising (A) a copolymer and (B) a crosslinking agent, said copolymer (A) consisting essentially of (a) from 3 to 10% by weight of ethylene, (b) from 0 to 10% by weight of at least one crosslinkable monomer selected from the group consisting of monomers of the formulas (1), (2), (3) and (4): ##STR1## wherein R.sub.1 is hydrogen or methyl, ##STR2## wherein R.sub.2 is vinyl, allyl or methallyl, ##STR3## wherein R.sub.3 is hydrogen or methyl,R.sub.4 OOC--CH.dbd.CH--COOH (4)wherein R.sub.4 is methyl, ethyl, propyl, butyl, methoxymethyl, methoxyethyl, methoxypropyl, methoxybutyl, ethoxybutyl, ethoxyethyl, ethoxypropyl or ethoxybutyl, and (c) from 80 to 97% by weight of other copolymer component, said other copolymer component (c) consisting essentially of (i) from 0 to 10% by weight of vinyl acetate, (ii) from 20 to 45% by weight of ethyl acrylate and (iii) from 45 to 70% by weight of n-butyl acrylate, the total amount of constituents (i), (ii) and (iii) being 100% by weight.

    摘要翻译： 一种丙烯酸类橡胶组合物，其包含（A）共聚物和（B）交联剂，所述共聚物（A）基本上由（a）3〜10重量％的乙烯组成，（b）0〜10重量％ 选自式（1），（2），（3）和（4）的单体的至少一种可交联单体：其中R1是氢或甲基，（2） 其中R 2是乙烯基，烯丙基或甲代烯丙基，其中R 3是氢或甲基，R 4 OOC-CH = CH-COOH（4）其中R 4是甲基，乙基，丙基，丁基，甲氧基甲基，甲氧基乙基，甲氧基丙基，甲氧基丁基 ，乙氧基丁基，乙氧基乙基，乙氧基丙基或乙氧基丁基，和（c）80至97重量％的其它共聚物组分，所述其它共聚物组分（c）基本上由（i）0至10重量％的乙酸乙烯酯，（ ii）20至45重量％的丙烯酸乙酯和（iii）45至70重量％的丙烯酸正丁酯，组分（i），（ii）和（iii）的总量为100重量％ 。