Molded polypropylene
    2.
    发明授权
    Molded polypropylene 有权
    模压聚丙烯

    公开(公告)号:US06429262B1

    公开(公告)日:2002-08-06

    申请号:US09674701

    申请日:2000-11-06

    Abstract: A molded polypropylene having an excellent balance among various material properties including impact resistance, transparency, gloss, molding shrinkage, and whitening resistance. The molding is constituted of a material comprising a resin composition comprising 10 to 60% by weight crystalline polypropylene (matrix) and 90 to 40% by weight propylene/&agr;-olefin copolymer (domains). The copolymer has been dispersed in the crystalline polypropylene to form domains elongated in the direction (MD) in which the resin composition flows during molding. Each domain is connected to one or more other domains at least at one site (connecting chain).

    Abstract translation: 在耐冲击性,透明性,光泽度,成型收缩率和耐白化性等各种材料性能之间具有优异平衡性的成型聚丙烯。 模制品由包括10至60重量%结晶聚丙烯(基体)和90至40重量%丙烯/α-烯烃共聚物(畴)的树脂组合物的材料构成。 共聚物已经分散在结晶聚丙烯中以形成在模塑过程中树脂组合物流动的方向(MD)伸长的畴。 每个域至少在一个站点(连接链)连接到一个或多个其他域。

    Polyolefin composition having a high balance of stiffness and impact strength
    3.
    发明授权
    Polyolefin composition having a high balance of stiffness and impact strength 有权
    具有高刚度和冲击强度平衡的聚烯烃组合物

    公开(公告)号:US06395832B1

    公开(公告)日:2002-05-28

    申请号:US09582599

    申请日:2000-06-28

    CPC classification number: C08L23/10 C08L23/0815 C08L2666/04

    Abstract: A polyolefin composition comprising (percentage by weight): (A) from 40 to 60% of a broad molecular weight distribution propylene polymer (component A) having a polydispersity index from 5 to 15 and melt flow rate of from 80 to 200 g/10 min (according to ASTM-D 1238, condition L); and (B) from 40 to 60% of a partially xylene-insoluble olefin polymer rubber (component B) containing at least 65% by weight of ethylene; the IVS/IVA ratio between the intrinsic viscosity (IVS) of the portion soluble in xylene of the polyolefin composition at room temperature and the intrinsic viscosity (IVA) of component (A) ranging from 2 to 2.5, both values on intrinsic viscosity being measured in tetrahydronaphthalene at 135° C. Said composition finds application in automotive field.

    Abstract translation: 包含(重量百分比)的聚烯烃组合物:(A)40-60%的分子量分布多的丙烯聚合物(组分A),其多分散指数为5至15,熔体流动速率为80至200g / 10 min(根据ASTM-D 1238,条件L); 和(B)含有至少65重量%乙烯的部分二甲苯不溶性烯烃聚合物橡胶(组分B)的40至60% 在室温下可溶于聚烯烃组合物的二甲苯的部分的特性粘度(IVS)与组分(A)的特性粘度(IVA)在2至2.5之间的IVS / IVA比,测量的特性粘度值 在四氢萘中在135℃。所述组合物可用于汽车领域。

    Propylene block copolymer and propylene resin composition
    4.
    发明授权
    Propylene block copolymer and propylene resin composition 有权
    丙烯嵌段共聚物和丙烯树脂组合物

    公开(公告)号:US06825280B1

    公开(公告)日:2004-11-30

    申请号:US09485189

    申请日:2000-02-07

    Abstract: Disclosed are a propylene polymer composition possessing excellent balance among rigidity and low warpage, resistance to deterioration caused by thermal oxidation during processing, weathering resistance, antistatic properties, and low bleeding properties, and a propylene resin composition which can easily produce molded products having excellent balance between rigidity and impact resistance (particularly low-temperature impact resistance) or heat resistance. The propylene polymer composition and the propylene resin composition comprise a propylene block copolymer consisting essentially of the following blocks (a) and (b) and having a melt flow rate of 0.1 to 200 g/10 min: block (a): a polymer block of a homopolymer of propylene or a random copolymer of propylene with a comonomer selected from the group consisting of ethylene and C4-C20 &agr;-olefins, the content of the comonomer being not more than 10% by mole; and block (b): a polymer block of a random copolymer of propylene with at least one comonomer selected from the group consisting of ethylene and C4-C20 &agr;-olefins, the content of the comonomer being 10 to 80% by mole, the average chain length of the comonomer block and the gross average chain length of the comonomer having a relationship represented by formula (I) nb≦n+1.5  (I) wherein nb represents the average chain length of the comonomer block; and n represents the gross average chain length of the comonomer.

    Abstract translation: 公开了在刚性和低翘曲之间具有优异的平衡性,耐加工中的热氧化,耐候性,抗静电性和低渗透性的耐劣化性的丙烯聚合物组合物,以及可以容易地制备具有优异平衡性的模塑产品的丙烯树脂组合物 刚性和抗冲击性(特别是低温耐冲击性)或耐热性。 丙烯聚合物组合物和丙烯树脂组合物包含基本上由以下嵌段(a)和(b)组成并且熔体流动速率为0.1至200g / 10min的丙烯嵌段共聚物:嵌段(a):聚合物嵌段 的丙烯均聚物或丙烯与选自乙烯和C 4 -C 20α-烯烃的共聚单体的无规共聚物,共聚单体的含量不超过10摩尔% 和嵌段(b):丙烯与至少一种选自乙烯和C 4 -C 20α-烯烃的共聚单体的无规共聚物的聚合物嵌段,共聚单体的含量为10〜80摩尔%,平均链 共聚单体嵌段的长度和由式(I)表示的关系的共聚单体的总平均链长,其中nb表示共聚单体嵌段的平均链长; n表示共聚单体的总平均链长。

    Polyolefin resin composition
    6.
    发明授权
    Polyolefin resin composition 失效
    聚烯烃树脂组合物

    公开(公告)号:US06248830B1

    公开(公告)日:2001-06-19

    申请号:US09384781

    申请日:1999-08-27

    Abstract: A polyolefin resin composition comprises a component A consisting of polypropylene or a propylene-ethylene block copolymer whose MFR is greater than 16 (g/10 minutes); a component B consisting of an ethylene based rubber; and a component D compatible with the component B. A ratio of summation of the propylene-ethylene copolymer part in the component A, the component B, and the component D to summation of the components A, B, and D is 25 wt. % or more and 45 wt. % or less. Further, a ratio of the blend quantity of the component D to summation of the blend quantities of the components B and D is less than 0.8. In this manner, the bending elastic modulus and the tensile breaking extension are included in a desired region, while the tensile breaking extension is improved.

    Abstract translation: 聚烯烃树脂组合物包含由聚丙烯组成的组分A或MFR大于16(g / 10分钟)的丙烯 - 乙烯嵌段共聚物; 由乙烯基橡胶组成的组分B; 和与组分B相容的组分D.将组分A,组分B和组分D中的丙烯 - 乙烯共聚物部分的总和与组分A,B和D的总和的比例为25wt。 %以上45重量% % 或更少。 此外,组分D的混合量与组分B和D的混合量的总和的比例小于0.8。 以这种方式,弯曲弹性模量和拉伸断裂伸长率包括在期望的区域中,而拉伸断裂伸长率提高。

    Plasticized polypropylene thermoplastics
    7.
    发明授权
    Plasticized polypropylene thermoplastics 有权
    增塑聚丙烯热塑性塑料

    公开(公告)号:US06639020B1

    公开(公告)日:2003-10-28

    申请号:US09390235

    申请日:1999-09-03

    Applicant: Patrick Brant

    Inventor: Patrick Brant

    Abstract: The invention is directed to a plasticized polypropylene thermoplastic composition comprising a blend of A) from 50 to 99.9 wt % of a thermoplastic polymer derived from polypropylene, optionally with one or more copolymerizable monomer selected from C2-C10 &agr;-olefin or diolefin, said polymer having a melt flow rate (MFR) (ASTM D1238) of from 0.5 to 1000 and a crystallinity by differential scanning calorimetry of from 0 to 70%; B) from 0.1 to 50 wt % of at least one ethylene copolymer having a weight-average molecular weight (Mw) (GPC) of from 500 to 10,000, a molecular weight distribution (MWD) (GPC) of from greater than 1.5 to less than or equal to 3.5, and a comonomer content of from greater than or equal to 20 mol % to less than 70 mol %; and optionally, C) from 0 to 20 wt % of a thermoplastic polypropylene modifier compound other than that of B).

    Abstract translation: 本发明涉及一种增塑聚丙烯热塑性组合物,其包含A)50至99.9重量%的衍生自聚丙烯的热塑性聚合物,任选与一种或多种选自C 2 -C 10α-烯烃或二烯烃的可共聚单体的共混物,所述聚合物 熔体流动速率(MFR)(ASTM D1238)为0.5〜1000,差示扫描量热法的结晶度为0〜70%; B)0.1至50重量%的至少一种乙烯共聚物,其重均分子量(Mw)(GPC)为500至10,000,分子量分布(MWD)(GPC)大于1.5至少 或者大于或等于3.5,共聚单体含量为大于或等于20mol%至小于70mol%; 和任选地C)0-20重量%的除B)之外的热塑性聚丙烯改性剂化合物。

    Polymer alloys and resin molded products
    10.
    发明授权
    Polymer alloys and resin molded products 失效
    聚合物合金和树脂成型产品

    公开(公告)号:US06403178B1

    公开(公告)日:2002-06-11

    申请号:US09632210

    申请日:2000-08-03

    Abstract: A polymer alloy containing a crystalline polypropylene, a polyphenylene ether and a syndiotactic polystyrene where the polyphenylene ether is finely dispersed in the crystalline polypropylene and the syndiotactic polystyrene is dispersed in the polyphenylene ether. The polymer alloy of the present invention comprises crystalline polypropylene/polyphenylene ether and can be improved in heat resistance, high-temperature rigidity and impact resistance without increasing the ratio of the polyphenylene ether and, furthermore, is excellent in moldability.

    Abstract translation: 含有结晶聚丙烯,聚苯醚和间同立构聚苯乙烯的聚合物合金,其中聚苯醚细分散在结晶聚丙烯中,间同立构聚苯乙烯分散在聚苯醚中。 本发明的聚合物合金包括结晶聚丙烯/聚苯醚,并且可以提高耐热性,高温刚性和耐冲击性,而不增加聚苯醚的比例,此外,成型性优异。

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