利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.035 秒)

    Foam compositions from blend of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic interpolymers
    1.
    发明授权
    Foam compositions from blend of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic interpolymers 失效
    烯烃芳族聚合物和α-烯烃/乙烯基或亚乙烯基芳族互聚物的共混物的泡沫组合物

    公开(公告)号：US06767931B2

    公开(公告)日：2004-07-27

    申请号：US10332683

    申请日：2003-01-09

    申请人： Felipe Martinez ,  Antonio Batistini ,  Jerker B. L. Kjellqvist ,  Ronald Wevers

    发明人： Felipe Martinez ,  Antonio Batistini ,  Jerker B. L. Kjellqvist ,  Ronald Wevers

    IPC分类号： C08J900

    CPC分类号： C08J9/0061 ,  C08J9/00 ,  C08J9/10 ,  C08J2325/08 ,  C08J2423/00 ,  C08L23/08 ,  C08L23/0838 ,  C08L23/0853 ,  C08L25/06 ,  C08L31/04 ,  C08L51/06 ,  C08L53/02 ,  C08L83/00 ,  C08L83/04 ,  C08L2203/14 ,  C08L2666/04 ,  C08L2666/02

    摘要： A foamable polymer composition is described which comprises: a1) a substantially random interpolymer produced from: i) one or more &agr;-olefin monomers; and ii) one or more vinyl or vinylidene aromatic monomers and/or one or more sterically hindered aliphatic or cycloaliphiatic vinyl or vinylidene monomers; and optionally iii) other polymerizable ethylenically unsaturated monomer(s); or a2) an interpolymer comprising polymerized units of ethylene and vinyl acetate; or a3) a combination of the polymers a1) and a2); and b) a polydiorganosiloxane having a viscosity of at least one million centistoke at 25° C.; and c) a foaming agent. The polydiorganosiloxane is useful for improving the abrasion resistance of foams comprising the substantially random interpolymer a1) and/or the ethylene/vinyl acetate interpolymer a2).

    摘要翻译： 描述了一种可发泡聚合物组合物，其包含：a1）由以下物质制备的基本上无规的互聚物：i）一种或多种α-烯烃单体; 和ii）一种或多种乙烯基或亚乙烯基芳族单体和/或一种或多种空间位阻的脂族或环烯基乙烯基或亚乙烯基单体; 和任选地iii）其它可聚合的烯属不饱和单体; 或a2）包含乙烯和乙酸乙烯酯的聚合单元的互聚物; 或a3）聚合物a1）和a2）的组合; 和b）在25℃下具有至少百万厘沲的粘度的聚二有机硅氧烷; 和c）发泡剂。 聚二有机硅氧烷可用于改善包含基本上无规共聚体a1）和/或乙烯/乙酸乙烯酯互聚物a2）的泡沫的耐磨性。

    Cap liners, closures and gaskets from multi-block polymers
    5.
    发明申请
    Cap liners, closures and gaskets from multi-block polymers 有权
    多层聚合物的盖衬，封闭件和垫圈

    公开(公告)号：US20060199911A1

    公开(公告)日：2006-09-07

    申请号：US11377007

    申请日：2006-03-15

    申请人： Ronald Markovich ,  Dale Elley-Bristow ,  Miguel Prieto ,  Russell Barry ,  Felipe Martinez ,  Daniel Falla ,  Julien Damen

    发明人： Ronald Markovich ,  Dale Elley-Bristow ,  Miguel Prieto ,  Russell Barry ,  Felipe Martinez ,  Daniel Falla ,  Julien Damen

    IPC分类号： C08F8/00

    CPC分类号： C08L23/0815 ,  C08L23/0869 ,  C08L23/0876 ,  C08L2666/06

    摘要： A polymer composition comprises at least an ethylene/α-olefin interpolymer and at least one other polymer. The other polymer can be selected from a second ethylene/α-olefin interpolymer, an elastomer, a polyolefin, a polar polymer, and an ethylene/carboxylic acid interpolymer or ionomer thereof. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. Also provided are gaskets, bottle cap liners, and closures that comprise or obtained from a compositon comprising at least one ethylene/α-olefin interpolymer and at least one polyolefin. The gaskets are capable of compression sealing various containers, without contaminating the contents. Liquid containers particularly benefit from the use of the novel gasket materials disclosed herein.

    摘要翻译： 聚合物组合物包含至少一种乙烯/α-烯烃互聚物和至少一种其它聚合物。 另一种聚合物可以选自第二乙烯/α-烯烃互聚物，弹性体，聚烯烃，极性聚合物和乙烯/羧酸互聚物或其离聚物。 乙烯/α-烯烃互聚物是至少具有硬嵌段和至少一个软嵌段的嵌段共聚物。 软块包含比硬块更高量的共聚单体。 嵌段互聚物具有这里公开的许多独特特征。 还提供了包含或由包含至少一种乙烯/α-烯烃互聚物和至少一种聚烯烃的组合物获得的垫圈，瓶盖衬垫和闭合件。 垫圈能够压缩各种容器，而不会污染内容物。 液体容器特别受益于使用本文公开的新型垫片材料。

    Rheology modification of interpolymers of ethylene/α-olefins and articles made therefrom
    7.
    发明授权
    Rheology modification of interpolymers of ethylene/α-olefins and articles made therefrom 有权
    乙烯/α-烯烃互聚物及其制品的流变改性

    公开(公告)号：US07795321B2

    公开(公告)日：2010-09-14

    申请号：US11378657

    申请日：2006-03-15

    申请人： Yunwa W. Cheung ,  Felipe Martinez ,  Pankaj Gupta

    发明人： Yunwa W. Cheung ,  Felipe Martinez ,  Pankaj Gupta

    IPC分类号： C08F210/16

    CPC分类号： C08L23/0815 ,  C08L23/06 ,  C08L23/10 ,  C08L23/16 ,  C08L2205/03 ,  C08L2207/07 ,  C08L2666/02

    摘要： Rheology modification of an ethylene/α-olefin interpolymer is achieved by blending the interpolymer with at least one branched polyolefin. The polyolefins can be homopolymers or interpolymers and have a branching index of less than 1. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. Rheology-modified ethylene/α-olefin interpolymer, i.e., the resulting polymer blends, can be extruded or molded into many useful articles, such as films, sheets, profiles, gaskets, foams, etc.

    摘要翻译： 通过将互聚物与至少一种支化聚烯烃共混来实现乙烯/α-烯烃互聚物的流变改性。 聚烯烃可以是均聚物或互聚物并且具有小于1的支化指数。乙烯/α-烯烃互聚物是具有至少一个硬嵌段和至少一个软嵌段的嵌段共聚物。 软块包含比硬块更高量的共聚单体。 嵌段互聚物具有这里公开的许多独特特征。 流变改性的乙烯/α-烯烃互聚物，即所得的聚合物共混物，可被挤出或模制成许多有用的制品，如薄膜，片材，型材，垫圈，泡沫等。

    Thin Foamed Polyethylene Sheets
    8.
    发明申请
    Thin Foamed Polyethylene Sheets 有权
    薄发泡聚乙烯薄板

    公开(公告)号：US20080138593A1

    公开(公告)日：2008-06-12

    申请号：US10560732

    申请日：2004-06-30

    申请人： Felipe Martinez

    发明人： Felipe Martinez

    IPC分类号： B32B27/32 ,  C08J9/00

    CPC分类号： C08J9/0061 ,  C08J5/18 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2423/00 ,  Y10T428/1376

    摘要： The present invention relates to the use of particular blends of LLDPE and LDPE together with specific fabrication conditions to make foamed sheets of thin gauge with MD tear properties similar to an equivalent gauge non-foamed sheet of the same composition. In particular, blends which combine a high MI LLDPE rich fraction with a low MI branched LDPE minor fraction provide the adequate balance of mechanical strength of the polymer base with its melt strength, extensibility and stress relaxation, allowing a thin foam film with MD tear strength which is comparable to non foamed counterparts of similar gauge and composition. The foamed films of the present invention are thin (generally from about 1 to 10 mils thick), and have an MD tear strength of at least about 160 grams for a 3 mil film as measured by ASTM D 1922. The foamed films of the present invention are preferably made at least in part from blends which comprise from 10 to 95 percent by weight of LLDPE having a relatively high (1.5 to 6) MI and from 5 to 90 percent of an LDPE resin having a relatively low MI (0.5 to 2.0).

    摘要翻译： 本发明涉及特定的LLDPE和LDPE共混物与特定制造条件的使用，以制备具有类似于相同组成的等效量规非发泡片材的MD撕裂性能的薄规格的发泡片材。 特别地，将高MI LLDPE浓度组分与低MI支链LDPE次要组分结合的混合物提供聚合物基体的机械强度与其熔体强度，伸长性和应力松弛的适当平衡，从而允许具有MD撕裂强度的薄泡沫膜 这与具有类似规格和组成的非发泡对应物相当。 本发明的发泡膜薄（通常为约1至10密耳厚），并且对于通过ASTM D 1922测量的3密耳膜具有至少约160克的MD撕裂强度。本发明的泡沫膜 本发明优选至少部分地由包含10至95重量％的具有相对高（1.5至6）MI的LLDPE和5至90％的具有相对低的MI（0.5至2.0）的LDPE树脂的共混物 ）。