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    • 1. 发明授权
    • Crystalline propylene block-copolymer composition for use in automobile
parts
    • 用于汽车零件的结晶丙烯嵌段共聚物组合物
    • US6121363A
    • 2000-09-19
    • US251331
    • 1999-02-17
    • Ikunori SakaiMikio HashimotoTakayuki NagaiTakao NomuraMasatoshi MatsudaOsamu KitoHisayuki Iwai
    • Ikunori SakaiMikio HashimotoTakayuki NagaiTakao NomuraMasatoshi MatsudaOsamu KitoHisayuki Iwai
    • B29C45/00B29K23/00C08K3/34C08L53/00C08L53/02C08K3/22C08L23/10
    • C08L53/00
    • A crystalline propyleiie block-copolymer composition exhibiting superior flowability upon molding for use in automobile parts, which composition comprises 41 to 71% by weight of a crystalline propylene block-copolymer composed of a propylene homopolymer portion (Fp) and an ethylene/propylene random copolymer portion (Fc) and having an ethylene content of 1 to 10% by weight and a melt flow rate (MFR) of 20 to 100 g/10 min.; 12 to 22% by weight of a first hydrogenated product of a block-copolymer having a relatively smaller stylene content; 2 to 12% by weight of a second hydrogenated product of a block-copolymer having a relatively greater stylene content; and 15 to 25% by weight of talc, wherein the propylene homopolymer portion (Fp) contains 20 to 50% by weight of a low molecular weight propylene homopolymer having an MFR of 400 to 1,000 g/10 min., the average MFR being 100 to 350 g/10 min. and the isotactic pentad fraction being at least 98%, and wherein the said (Fc) has an intrinsic viscosity of 7 dl/g or higher.
    • 一种结晶丙烯嵌段共聚物组合物,其成型用于汽车部件时具有优异的流动性,该组合物包含41至71重量%的由丙烯均聚物部分(Fp)和乙烯/丙烯无规共聚物组成的结晶丙烯嵌段共聚物 (Fc),乙烯含量为1〜10重量%,熔体流动速率(MFR)为20〜100g / 10分钟。 12至22重量%的具有相对较小的苯乙烯含量的嵌段共聚物的第一氢化产物; 2至12重量%的具有相对较大的苯乙烯含量的嵌段共聚物的第二个氢化产物; 和15〜25重量%的滑石,其中丙烯均聚物部分(Fp)含有20〜50重量%的MFR为400〜1000g / 10分钟的低分子量丙烯均聚物,平均MFR为100 至350g / 10min。 和全同立构五单元组分数为98%以上,其中所述(Fc)的特性粘度为7dl / g以上。
    • 2. 发明授权
    • Polypropylene resin composition
    • 聚丙烯树脂组合物
    • US5308908A
    • 1994-05-03
    • US936389
    • 1992-08-28
    • Osamu FukuiKouhei UenoYoshifumi NakanoIkunori SakaiTakao NomuraTakeyoshi NishioHisayuki Iwai
    • Osamu FukuiKouhei UenoYoshifumi NakanoIkunori SakaiTakao NomuraTakeyoshi NishioHisayuki Iwai
    • C08K3/34C08L23/08C08L23/16C08L53/00C08L23/04
    • C08K3/34C08L53/00C08L2205/02C08L23/0815C08L23/16
    • A polypropylene resin composition comprising:(A) 45 to 70% by weight of an ethylene-propylene block copolymer synthesized under the process comprising the steps of;(a) polymerizing propylene with a Ziegler-Natta catalyst to obtain a highly crystalline polypropylene that contain not less than 97% by weight of a fraction insoluble in boiling n-heptane, and(b) copolymerizing ethylene with the polypropylene (a), and which(a) contains 0.5 to 10% by weight of ethylene,(b) contains 5 to 20% by weight of a fraction being soluble in p-xylene at room temperature and having an intrinsic viscosity value of not less than 2 (measured in decalin at 135.degree. C.),(c) has a melt-flow index value of 30 to 100 g/10 min., and,(d) has a value of flexural modulus of not less than 18,000 kg/cm.sup.2,(B) 10 to 20% by weight of an amorphous ethylene-propylene copolymer having(a) an ethylene content of 70 to 90% by weight,(b) a Mooney viscosity value (ML.sub.1+4 at 100.degree. C.) of 5 to 70,(C) 5 to 15% by weight of an ethylene-.alpha.-olefin copolymer having(a) an .alpha.-olefin content of 5 to 15% by mole,(b) a value of gravity of not more than 0.91, and(c) a melt-flow index value of 2.2 to 50 g/10 min. at 230.degree. C.,(D) 1 to 10% by weight of an amorphous ethylene-butene copolymer having(a) a butene content of 10 to 25% by weight, and(b) a Mooney viscosity value (ML.sub.1+4, at 100.degree. C.) of 5 to 20,(E) not more than 15% by weight of a talc that(a) has an average diameter D50 of from 1.0 to 3.0 .mu.m, and(b) does not contain a particle having a diameter of 10 .mu.m or more,wherein the component (B) is rubber reinforced by lamellae of components (C) and (D).
    • 一种聚丙烯树脂组合物,其包含:(A)45至70重量%的在包括以下步骤的方法中合成的乙烯 - 丙烯嵌段共聚物: (a)用齐格勒 - 纳塔催化剂聚合丙烯以获得含有不少于97重量%不溶于沸腾正庚烷的馏分的高度结晶的聚丙烯,和(b)使乙烯与聚丙烯(a)共聚,和 (a)含有0.5〜10重量%的乙烯,(b)在室温下含有5〜20重量%的可溶于对二甲苯的馏分,其特性粘度值不小于2(以 十氢萘在135℃),(c)的熔体流动指数值为30〜100g / 10分钟,(d)弯曲弹性模量值不小于18,000kg / cm 2,(B )10〜20重量%的(a)乙烯含量为70〜90重量%,(b)门尼粘度值(100℃时ML1 + 4)为5〜70的无定形乙烯 - 丙烯共聚物 ,(C)5〜15重量%的(a)α-烯烃含量为5〜15摩尔%的乙烯-α-烯烃共聚物,(b)重力值不大于0.91,( c)熔体流动inde x值为2.2〜50g / 10min。 (D)1〜10重量%的(a)丁烯含量为10〜25重量%的无定形乙烯 - 丁烯共聚物,(b)门尼粘度值(ML1 + 4, 在100℃下为5〜20,(E)不超过15重量%的滑石,(a)平均直径D50为1.0〜3.0μm,(b)不含有颗粒 其直径为10μm以上,其中,成分(B)由成分(C)和(D)的薄片橡胶增强。
    • 6. 发明授权
    • Flame-retarding thermoplastic resin composition
    • 阻燃热塑性树脂组合物
    • US06756430B2
    • 2004-06-29
    • US09878424
    • 2001-06-12
    • Yuichi MatsudaMikio HashimotoIkunori Sakai
    • Yuichi MatsudaMikio HashimotoIkunori Sakai
    • C08K53492
    • C08K5/053C08K5/0091C08K5/3492C08K5/34928C08K5/51
    • A flame-retarding thermoplastic resin composition which is composed essentially of (A) a component of thermoplastic resin, (B) a component of nitrogen atom-containing phosphatic compound, (C) a component of hydroxyl group-containing compound or partly esterified product thereof and (D) a component of neutralizer for acids, with optional component (E) of triazine derivative or (F) of metal alkoxide, wherein the proportion of each component is such that the component (A) is in the range from 60 to 90 parts by weight, the sum of the components (B)+(C) is in the range from 10 to 40 parts by weight and the component (D) is in the range from 0.1 to 5 parts by weight, per 100 parts by weight of the total sum of (A)+(B)+(C), respectively, wherein the weight ratio of (B)/(C) amounts to at least 1.
    • 一种阻燃性热塑性树脂组合物,其主要由(A)热塑性树脂组分,(B)含氮原子的磷酸酯化合物的组分,(C)含羟基化合物的组分或其部分酯化产物 和(D)酸中和剂的组分,和三嗪衍生物的任选组分(E)或金属醇盐的(F),其中每种组分的比例使得组分(A)的比例在60至90 (B)+(C)的总和为10〜40重量份,成分(D)为0.1〜5重量份,相对于100重量份 分别为(A)+(B)+(C)的总和,其中(B)/(C)的重量比达到至少1。
    • 9. 发明授权
    • Polyproplylene resin composition
    • US5837764A
    • 1998-11-17
    • US757607
    • 1996-11-29
    • Tomohiko AkagawaIkunori SakaiSaburo HinenoyaKaoru InoueTakao NomuraTakeyoshi Nishio
    • Tomohiko AkagawaIkunori SakaiSaburo HinenoyaKaoru InoueTakao NomuraTakeyoshi Nishio
    • C08K3/34C08L23/08C08L53/00
    • C08L53/00
    • A polypropylene resin composition comprising the following components (A), (B), (C) and (D): (A) a crystalline ethylene-propylene block copolymer containing a room-temperature-p-xylene-soluble fraction Ac having an ethylene content of 12-26% by weight and an intrinsic viscosity (measured at 135.degree. C. in decalin) of 6 dl/g or more, (B) a crystalline ethylene-propylene block copolymer containing a room-temperature-p-xylene-soluble fraction Bc having an ethylene content of 27-50% by weight and an intrinsic viscosity (measured at 135.degree. C. in decalin) of 4 dl/g or less, (C) an ethylene-.alpha.-olefin copolymer obtained by polymerization using a single-site catalyst, having a molecular weight distribution (Mw/Mn) of 2.5 or less, a melt flow ratio (MI.sub.10 /MI.sub.2.16) of 6-15 (wherein MI.sub.10 is a melt index measured at 190.degree. C. under a load of 10 kg and MI.sub.2.16 is a melt index measured at 190.degree. C. under a load of 2.16 kg) and an .alpha.-olefin proportion of 70 mole % or less, and (D) a talc having an average particle diameter of 3-7 .mu.m as measured by laser diffraction. In the composition the weight ratios As and Bs of the room-temperature-p-xylene-soluble fractions Ac and Bc to the total weight of the components (A) and (B) satisfy the following formulas (1) and (2): As+Bs=7-15% by weight (1) As/(As+Bs)=0.1-0.6 (2) The polypropylene component contained in each of the components (A) and (B) has an isotactic pentad fraction (mmmm) of 96% or more, and the mixture of the components (A) and (B) has a melt flow rate (measured at 230.degree. C. under a load of 2,160 g) of 30-70 g/10-min, the total content of the components (A) and (B) is 50-80% by weight, the content of the component (C) is 5-20% by weight, and the content of the component (D) is 15-30% by weight, and the composition comprising the components (A), (B), (C) and (D) has a melt flow rate (measured at 230.degree. C. under a load of 2,160 g) of 25 g/10-min or more. The composition is superior in stiffness, resistance to heat deformation, impact resistance and moldability and can provide a molded article of good appearance.