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    • 2. 发明授权
    • Polyolefin-based resin composition and automotive molded plastic made from same
    • 聚烯烃基树脂组合物和由其制成的汽车模制塑料
    • US06441075B2
    • 2002-08-27
    • US08837874
    • 1997-04-25
    • Tomio HirataKazuo MatsuyamaKazuyuki YamamotoKazushige OhnishiMinoru AdachiTamihiro OhashiMotoru KomatsuSatoru IchikawaMasahiro TeradaHirosuke KamaeAkira Kawai
    • Tomio HirataKazuo MatsuyamaKazuyuki YamamotoKazushige OhnishiMinoru AdachiTamihiro OhashiMotoru KomatsuSatoru IchikawaMasahiro TeradaHirosuke KamaeAkira Kawai
    • C08K300
    • C08L53/00C08L2666/04
    • The invention relates to a polyolefin-based resin composition that is in an amount of 100 wt % in total. This composition includes (a) 60-66 wt % of a crystalline propylene-ethylene block copolymer, (b) 12-20 wt % of an ethylene-propylene copolymer rubber, and (c) 18-25 wt % of an inorganic filler. The block copolymer contains a first segment of a homopolymer of propylene and a second segment of a copolymer of propylene and ethylene, and has an isotactic pentad tacticity of at least 0.96. The ratio of the weight average molecular weight of the block copolymer to the number average molecular weight thereof is not greater than 6. The copolymer rubber contains therein 50-60 wt % of ethylene, and has a Mooney viscosity of from 45 to 55 at 125° C. The inorganic filler is one selected from the group consisting of a talc, a first combination of the talc and a glass fiber, and a second combination of the talc and a whisker. The talc has an average particle diameter of not greater than 2 &mgr;m. The glass fiber has an average fiber length of from 5 to 10 mm and an average diameter of from 15 to 20 &mgr;m. The whisker has an average fiber length of from 15 to 25 &mgr;m and an average diameter of from 0.5 to 1 &mgr;m. A molded plastic article made from the resin composition is substantially improved in scratch resistance.
    • 本发明涉及总量为100重量%的聚烯烃基树脂组合物。 该组合物包括(a)60-66重量%的结晶丙烯 - 乙烯嵌段共聚物,(b)12-20重量%的乙烯 - 丙烯共聚物橡胶,和(c)18-25重量%的无机填料。 嵌段共聚物含有丙烯均聚物的第一段和丙烯与乙烯的共聚物的第二段,并且具有至少0.96的全同立构五单元组立构规整度。 嵌段共聚物的重均分子量与其数均分子量的比例不大于6.共聚物橡胶中含有50-60重量%的乙烯,并且在125℃时门尼粘度为45至55 无机填料是选自滑石,滑石和玻璃纤维的第一组合以及滑石和晶须的第二组合的组。 滑石的平均粒径不大于2μm。 玻璃纤维的平均纤维长度为5〜10mm,平均直径为15〜20μm。 晶须的平均纤维长度为15至25μm,平均直径为0.5至1μm。 由树脂组合物制成的模制塑料制品的耐刮擦性大大提高。
    • 3. 发明授权
    • Polyolefin-based plastic composition and automotive molded article
formed thereof
    • 聚烯烃类塑料组合物和由其形成的汽车模塑制品
    • US5965654A
    • 1999-10-12
    • US838986
    • 1997-04-23
    • Tomio HirataKazuo MatsuyamaKazuyuki YamamotoKazushige OhnishiYukihito ZankaTakuya KurioTakashi NiimiSatoru IchikawaMotoru KomatsuMasahiro TeradaHirosuke KamaeAkira Kawai
    • Tomio HirataKazuo MatsuyamaKazuyuki YamamotoKazushige OhnishiYukihito ZankaTakuya KurioTakashi NiimiSatoru IchikawaMotoru KomatsuMasahiro TeradaHirosuke KamaeAkira Kawai
    • C08K3/34B60J1/02C08L23/00C08L23/08C08L23/12C08L23/16C08L53/00C08K3/00
    • C08L53/00
    • A polyolefin-based plastic composition suitable for an automotive molded pillar member such as a pillar garnish. The plastic composition comprises (A) block copolymer in an amount ranging from 53 to 68 parts by weight, the block copolymer having a Melt Flow Rate (at 230.degree. C. and under 2.16 kg) ranging from 20 to 50 g/10 min. and containing crystalline polypropylene section in an amount ranging from 90 to 95% by weight, having a density of not lower than 0.908 g/cm.sup.3, and propylene-ethylene random copolymer section in an amount ranging from 5 to 10% by weight, the propylene-ethylene random copolymer section having an ethylene content ranging from 35 to 45% by weight; (B) ethylene-1-butene copolymer rubber in an amount ranging from 12 to 20 parts by weight and having a density ranging from 0.85 to 0.87 g/cm.sup.3 and a Melt Flow Rate (at 230.degree. C. and under 2.16 kg) ranging from 0.2 to 5 g/10 min., the copolymer rubber containing 1-butene in an amount ranging from 30 to 40% by weight; and (C) talc in an amount ranging from 22 to 30 parts by weight and having a length not more than 15 .mu.m and an average particle size ranging from 1.5 to 6 .mu.m, the talc having an average aspect ratio not lower than 5. The polyolefin-based plastic composition has a Melt Flow Rate (at 230.degree. C. and under 2.16 kg) not lower than 8 g/10 min., a Flexural Elastic Modulus not lower than 1960 MPa when molded, and an IZOD not lower than 0.088 KJ/m when molded, and a Rockwell hardness (in R scale) not lower than 65 when molded.
    • 适合汽车模制支柱构件如支柱装饰的聚烯烃基塑料组合物。 塑料组合物包含(A)53至68重量份的嵌段共聚物,嵌段共聚物具有20至50g / 10min的熔体流动速率(230℃和2.16kg)。 并且含有90至95重量%的结晶聚丙烯截面,其密度不低于0.908g / cm3,丙烯 - 乙烯无规共聚物部分的量为5至10重量%,丙烯 乙烯无规共聚物部分,其乙烯含量为35至45重量%; (B)乙烯-1-丁烯共聚物橡胶,其量为12至20重量份,密度范围为0.85至0.87g / cm 3,熔体流动速率(230℃和2.16kg)范围内 0.2〜5g / 10分钟,含有1-40重量%的1-丁烯的共聚物橡胶; 和(C)滑石,其量为22〜30重量份,长度不大于15μm,平均粒径为1.5〜6μm,滑石的平均纵横比不小于5 聚烯烃类塑料组合物的熔体流动速率(230℃,2.16kg以下)不低于8g / 10min,模塑时的挠曲弹性模量不低于1960MPa,IZOD不低于 成型时为0.088KJ / m,成型时的洛氏硬度(R刻度)不低于65。
    • 4. 发明授权
    • Weather strip
    • 天气条
    • US06742784B2
    • 2004-06-01
    • US10108267
    • 2002-03-28
    • Tomoaki SakaneTatsumi OnishiHirosuke Kamae
    • Tomoaki SakaneTatsumi OnishiHirosuke Kamae
    • F16J1502
    • F16J15/025B60J10/16B60J10/17B60J10/74
    • A weather strip or glass run for an automotive vehicle. The weather strip comprises a main body formed of an elastomer. A slidably contacting section to which a part other than the weather strip is slidably contactable is fixedly formed on the main body and contains a material having at least one of hydrophilicity and water absorbability. The slidably contacting section may be integral with the main body to form a one-piece structure, in which the slidably contacting section is formed of the elastomer, and the elastomer of the main body and the slidably contacting section contain the material having at least one of hydrophilicity and water absorbability.
    • 用于汽车的天气条或玻璃。 防风条包括由弹性体形成的主体。 一个可滑动接触部分的滑动接触部分固定地形成在主体上并且包含具有至少一种亲水性和吸水性的材料。 滑动接触部分可以与主体一体形成一体结构,其中滑动接触部分由弹性体形成,并且主体和滑动接触部分的弹性体包含具有至少一个 的亲水性和吸水性。