Polypropylene resin composition
    3.
    发明授权
    Polypropylene resin composition 失效
    聚丙烯树脂组合物

    公开(公告)号:US5883174A

    公开(公告)日:1999-03-16

    申请号:US680971

    申请日:1996-07-16

    CPC分类号: C08L53/00

    摘要: A polypropylene resin composition having excellent rigidity, impact resistance and formability (moldability) and thus useful for the interior parts of automobile, includes (A) a crystalline E/P block copolymer containing a fraction Ac soluble in p-xylene at room temperature and having an ethylene content of 18 to 22%; (B) a crystalline E/P block copolymer containing a fraction Bc soluble in p-xylene at room temperature and having an ethylene content of 27 to 40% and (C) talc particles having an average size of 3 to 5 .mu.m and largest size less than 20 .mu.m, in which composition, (a) the p-xylene-soluble fractions Ac and Bc are in contents As and Bs based on the total weight of the copolymers (A) and (B) and satisfying As+Bs=7 to 17% by weight and As/(A +Bs)=0.1 to 0.6; (b) an isotactic pentad fraction of propylene in each of copolymers (A) and (B) is 96% or more, and the mixture of the copolymers (A) and (B) has a MFR of 20 to 35 g/10 min at 230.degree. C. under 2160 g load; and (c) the copolymers (A) and (B) are in a total weight content of 50 to 95% and talc (C) is in a weight content of 5 to 50%.

    摘要翻译: 具有优异的刚性,耐冲击性和成型性(成型性),因此可用于汽车内部的聚丙烯树脂组合物包括(A)在室温下含有可溶于对二甲苯的馏分Ac的结晶E / P嵌段共聚物,并具有 乙烯含量为18〜22%; (B)在室温下含有可溶于对二甲苯的馏分Bc,乙烯含量为27〜40%的结晶性E / P嵌段共聚物,(C)平均粒径为3〜5μm的滑石粉末和最大 (a)对二甲苯可溶级分Ac和Bc的含量为A,Bs为基于共聚物(A)和(B)的总重量,满足As + Bs = 7〜17重量%,As /(A + Bs)= 0.1〜0.6; (b)共聚物(A)和(B)中的丙烯的全同立构五单元组分率为96%以上,共聚物(A)和(B)的混合物的MFR为20〜35g / 10分钟 在230℃,2160g负荷下; 和(c)共聚物(A)和(B)的总重量含量为50-95%,滑石(C)的重量含量为5-50%。

    Polyproplylene resin composition
    4.
    发明授权

    公开(公告)号:US5837764A

    公开(公告)日:1998-11-17

    申请号:US757607

    申请日:1996-11-29

    IPC分类号: C08K3/34 C08L23/08 C08L53/00

    CPC分类号: C08L53/00

    摘要: 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.

    Impact-resistant polypropylene resin compositions
    5.
    发明授权
    Impact-resistant polypropylene resin compositions 失效
    耐冲击聚丙烯树脂组合物

    公开(公告)号:US4988764A

    公开(公告)日:1991-01-29

    申请号:US500119

    申请日:1990-03-27

    IPC分类号: C08L51/06 C08L53/00 C08L77/00

    CPC分类号: C08L51/06 C08L77/00

    摘要: The polypropylene resin composition of the present invention can be obtained by melt mixing:(a) a modified polypropylene obtained by grafting a crystalline propylene-ethylene block copolymer with an unsaturated carboxylic acid, or a crystalline polypropylene containing the modified polypropylene,(b) a polyamide, and(c) a modified ethylene-.alpha.-olefin copolymer rubber obtained by grafting an ethylene-.alpha.olefin copolymer rubber with an unsaturated carboxylic acid. This composition is superior in low temperature impact resistance, rigidity, heat resistance and oil resistance.

    摘要翻译: 本发明的聚丙烯树脂组合物可以通过熔融混合获得:(a)通过将结晶丙烯 - 乙烯嵌段共聚物与不饱和羧酸接枝而获得的改性聚丙烯或含有改性聚丙烯的结晶聚丙烯,(b) 聚酰胺,和(c)通过将乙烯-α-烯烃共聚物橡胶与不饱和羧酸接枝而获得的改性乙烯-α-烯烃共聚物橡胶。 该组合物在低温耐冲击性,刚性,耐热性和耐油性方面优异。

    Thermoplastic resin composition
    6.
    发明授权
    Thermoplastic resin composition 失效
    热塑性树脂组合物

    公开(公告)号:US5206284A

    公开(公告)日:1993-04-27

    申请号:US728285

    申请日:1991-07-11

    摘要: A polypropylene thermoplastic resin composition comprising (a) a modified crystalline polypropylene of a crystalline polypropylene comprising said modified crystalline polypropylene and (b) a modified polyamide obtained by partially or wholly grafting a polyamide with a clay mineral. A polypropylene thermoplastic resin composition comprising, in addition to the above polypropylene thermoplastic resin composition comprising the components (a) and (b), one or any combination of the following components (c), (d) and (e): (c) an ethylene-.alpha.-olefin copolymer rubber or a modified ethylene-.alpha.-olefin copolymer rubber, (d) a block copolymer between a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, a hydrogenation product of said block copolymer, or a modification product of said block copolymer, and (e) an inorganic filler. The modified polyamide as the component (b), obtained by modifying a polyamide with a clay mineral has good compatibility with or good dispersibility in the component (a), i.e. the modified crystalline polypropylene or the crystalline polypropylene comprising the modified crystalline polypropylene. Therefore, the polypropylene thermoplastic resin composition comprising these components (a) and (b) has excellent heat resistance and excellent impact resistance.

    摘要翻译: 一种聚丙烯热塑性树脂组合物,其包含(a)包含所述改性结晶聚丙烯的结晶聚丙烯的改性结晶聚丙烯和(b)通过部分或全部用粘土矿物接枝聚酰胺获得的改性聚酰胺。 一种聚丙烯热塑性树脂组合物,除了包含组分(a)和(b)的上述聚丙烯热塑性树脂组合物外,还包含以下组分(c),(d)和(e)中的一种或任意组合:(c) 乙烯-α-烯烃共聚物橡胶或改性乙烯-α-烯烃共聚物橡胶,(d)单乙烯基取代的芳烃和共轭二烯之间的嵌段共聚物,所述嵌段共聚物的氢化产物或 所述嵌段共聚物,和(e)无机填料。 通过用粘土矿物改性聚酰胺获得的作为组分(b)的改性聚酰胺与组分(a),即改性结晶聚丙烯或包含改性结晶聚丙烯的结晶聚丙烯具有良好的相容性或良好的分散性。 因此,包含这些组分(a)和(b)的聚丙烯热塑性树脂组合物具有优异的耐热性和优异的耐冲击性。

    Polypropylene resin composition
    7.
    发明授权
    Polypropylene resin composition 失效
    聚丙烯树脂组合物

    公开(公告)号:US5283267A

    公开(公告)日:1994-02-01

    申请号:US630771

    申请日:1990-12-21

    IPC分类号: C08K7/08 C08L53/00 C08K9/00

    CPC分类号: C08K7/08 C08L53/00

    摘要: The polypropylene resin composition of the present invention comprises specific proportions of a crystalline ethylene-propylene block copolymer, an hydrogenated block copolymer, an amorphous ethylene-propylene copolymer, surface-treated talc, fibrous magnesium oxysulfate of granular form and a metal soap. This resin composition is well balanced in rigidity and impact resistance, has good mar resistance, and can be preferably used in large-sized parts for automobiles, particularly instrument panels for automobiles.

    摘要翻译: 本发明的聚丙烯树脂组合物包含特定比例的结晶乙烯 - 丙烯嵌段共聚物,氢化嵌段共聚物,无定形乙烯 - 丙烯共聚物,表面处理滑石,粒状纤维状硫酸镁和金属皂。 该树脂组合物的刚性和耐冲击性良好地平衡,具有良好的耐磨性,并且可以优选用于汽车的大型零件,特别是用于汽车的仪表板。

    Polypropylene resin composition for exterior parts of automobile
    8.
    发明授权
    Polypropylene resin composition for exterior parts of automobile 失效
    汽车外部用聚丙烯树脂组合物

    公开(公告)号:US5744535A

    公开(公告)日:1998-04-28

    申请号:US727105

    申请日:1996-10-08

    IPC分类号: C08L53/00 C08K3/34

    CPC分类号: C08L53/00

    摘要: A polypropylene resin composition having a high moldability and capable of forming therefrom shaped articles having excellent surface hardness, thermal deformation resistance and low temperature impact resistance includes (A) 35-74 wt % of a crystalline ethylene-propylene block copolymer with an ethylene content of 0.5-15 wt %, an isotactic pentad fractional propylene of 96% or more and a MFR of 40-80 g/10 min. (230.degree. C., 2160 g); (B) 21-40 wt % of an ethylene-.alpha.-olefin copolymer produced by using a single site catalyst and having an .alpha.-olefin content of 70 mol % or more, a ratio (Mw/Mn) of 2.5 or less, and a ratio (MI.sub.10 /MI.sub.2.16) of 6 to 15; and (C) 5-25 wt % of a talc particle component having an average particle size of 3-7 .mu.m.

    摘要翻译: 具有高成型性并且能够形成具有优异的表面硬度,耐热变形性和耐低温冲击性的成形制品的聚丙烯树脂组合物包括(A)35-74重量%的乙烯含量的结晶乙烯 - 丙烯嵌段共聚物 0.5-15重量%,全同立构五单元组分数丙烯为96%以上,MFR为40〜80g / 10分钟。 (230℃,2160g); (B)21-40重量%的使用单中心催化剂制备的α-烯烃含量为70摩尔%以上,(Mw / Mn)为2.5以下的乙烯-α-烯烃共聚物,和 比例(MI10 / MI2.16)为6至15; 和(C)5-25重量%的平均粒径为3-7μm的滑石颗粒组分。

    Reinforced polypropylene resin composition
    9.
    发明授权
    Reinforced polypropylene resin composition 失效
    增强聚丙烯树脂组合物

    公开(公告)号:US5543454A

    公开(公告)日:1996-08-06

    申请号:US285627

    申请日:1994-08-04

    摘要: A reinforced polypropylene resin composition contains the following components (A), (B) and (C) in amounts of 67 to 82% by weight of, 6 to 12% by weight and 12 to 21% by weight, respectively:Component (A): crystalline ethylene-propylene block copolymer having an ethylene content of 2 to 4% by weight, a molecular distribution of polypropylene component (Q=M.sub.w /M.sub.n) of at least 7, isotacticity of polypropylene component of at least 98%, an intrinsic viscosity (decalin, 135.degree. C.) of room temperature p-xylene soluble content of at least 6 dl/g, a melt flow rate (MFR) of 3 to 15 g/10 minutes, and the product of flexural modulus at room temperature and Izod impact strength at room temperature of at least 120000.Component (B): at least one elastomer selected from the group of consisting of (a) hydrogenated block copolymer rubbers each comprising block (I) composed of an aromatic vinyl compound copolymer and block (II) composed of a conjugated diene copolymer, and having a bonding structure of I-II or I-(II-I).sub.n (wherein n=1 or 2), wherein block (I) is contained in an amount of 10 to 40% by weight of the copolymer and is hydrogenated in an amount of 10 mol % or less, and block (II) is contained in an amount of 60 to 90% by weight of the copolymer and is hydrogenated in an amount of at least 90 mol %; and (b) ethylene-.alpha.-olefin copolymer rubbers each containing 30 to 95% by weight of ethylene.Component (C): talc having an average particle size of 3 to 5 .mu.m, which is measured by a laser diffraction method, a BET specific surface area of 5 to 13 m.sup.2 /g, and a top cut size of less than 20 .mu.m.

    摘要翻译: 增强聚丙烯树脂组合物分别含有67〜82重量%,6〜12重量%和12〜21重量%的成分(A),(B)和(C)成分(A ):乙烯含量为2〜4重量%,聚丙烯组分(Q = Mw / Mn)分子量至少为7,聚丙烯组分的全同立构度至少为98%的结晶乙烯 - 丙烯嵌段共聚物,内在的 室温对二甲苯可溶物含量至少为6dl / g,熔体流动速率(MFR)为3〜15g / 10分钟的粘度(萘烷,135℃),室温下的弯曲弹性模量 组分(B):选自(a)氢化嵌段共聚物橡胶中的至少一种弹性体,各自包含由芳族乙烯基化合物共聚物和嵌段(I)组成的嵌段(I) (II),具有结合结构o f I-II或I-(II-I)n(其中n = 1或2),其中嵌段(I)的含量为共聚物重量的10〜40%,氢化量为10 mol%以下,嵌段(II)的含量为共聚物的60〜90重量%,氢化至少为90摩尔%以上。 和(b)乙烯-α-烯烃共聚物橡胶,各自含有30至95重量%的乙烯。 成分(C):通过激光衍射法测定的平均粒径为3〜5μm的滑石,BET比表面积为5〜13m 2 / g,顶切尺寸小于20μm m。

    Reclaimed resin composition produced from pulverized waste plastic material containing solid foreign materials
    10.
    发明授权
    Reclaimed resin composition produced from pulverized waste plastic material containing solid foreign materials 有权
    由含有固体异物的粉碎废塑料制成的再生树脂组合物

    公开(公告)号:US07619013B2

    公开(公告)日:2009-11-17

    申请号:US10576199

    申请日:2004-10-18

    IPC分类号: C08J11/04

    摘要: [Problems] To produce a resin composition from a waste plastic material composed of a major portion of a thermoplastic resin and a small amount of incompatible solid foreign material.[Means for solving problems] A reclaimed resin composition which is produced by mixing a pulverized waste plastic material containing a major portion of a thermoplastic resin and a small amount of a non-thermoplastic solid foreign material with a light-shielding component and a light-shielding filler to give a mixture and melting the mixture under heating, and a sheet made from which shows a relationship between a lightness and a light transmittance satisfying the following condition: (A×B)≦4000 wherein A means a lightness of a sheet of 3 mm thick having been made of the reclaimed resin composition, and B means a total light transmittance (%) of a sheet of 50 μm thick having been made of the resin composition.

    摘要翻译: [问题]从由热塑性树脂的主要部分和少量不相容的固体异物构成的废塑料材料制造树脂组合物。 解决问题的手段通过将含有热塑性树脂的主要部分的粉碎废塑料和少量非热塑性固体异物与遮光组分和发光材料混合而制备的再生树脂组合物, 屏蔽填料以得到混合物并在加热下熔化混合物,并且由其制成的片材显示满足以下条件的亮度和透光率之间的关系:(AxB)其中A表示3mm厚的片材的亮度, 由回收树脂组合物制成,B表示由树脂组合物制成的50μm厚的片材的总透光率(%)。