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    RADIAL STYRENE-ISOPRENE-BUTADIENE MULTI-ARMED BLOCK COPOLYMERS AND COMPOSITIONS AND ARTICLES CONTAINING BLOCK COPOLYMERS
    1.
    发明申请
    RADIAL STYRENE-ISOPRENE-BUTADIENE MULTI-ARMED BLOCK COPOLYMERS AND COMPOSITIONS AND ARTICLES CONTAINING BLOCK COPOLYMERS 审中-公开
    径向苯乙烯 - 异丁烯 - 丁二烯多臂嵌段共聚物及其组合物和含有嵌段共聚物的制品

    公开(公告)号：WO1995014727A1

    公开(公告)日：1995-06-01

    申请号：PCT/US1994013481

    申请日：1994-11-21

    Applicant: THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS, INC.

    Inventor： THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS, INC. ,  TANCREDE, Jean, M. ,  DIEHL, Charles, F. ,  MARCHAND, Gary, R.

    IPC: C08G81/02

    CPC classification number: C08G81/022 ,  A61F13/58 ,  A61L15/58 ,  B32B7/12 ,  C08F297/046 ,  C08L2666/02 ,  C09J153/02 ,  Y10T428/31855 ,  Y10T428/3188 ,  Y10T428/31895 ,  Y10T442/2754 ,  C08L53/02

    Abstract: The invention is drawn to radial block copolymers of the formula: (pS-pI-pBnX), wherein pS is polystyrene, pI is polyisoprene, pB is polybutadiene, X is the residue of a multifunctional coupling agent used in the production of the radial block copolymer, and n is a number greater than or equal to 3 representative of the number of branches appended to X; pressure sensitive adhesive compositions comprising such radial block copolymers and articles of manufacture produced therefrom. The pS component of the radial block copolymers of this invention comprise from about 14 to about 24 parts per 100 parts by weight of the radial block copolymer; the molecular weight (as polystyrene equivalent) of the radial block copolymer is between about 200,000 to about 400,000; and the weight amount of polybutadiene in the pI-pB segment is less than 50 weight percent.

    Abstract translation: 本发明涉及式（pS-pI-pBnX）的径向嵌段共聚物，其中pS是聚苯乙烯，pI是聚异戊二烯，pB是聚丁二烯，X是用于制造径向块的多官能偶联剂的残基 共聚物，n为大于或等于3的数，代表附加到X的分枝数; 包含这种径向嵌段共聚物的压敏粘合剂组合物和由其制备的制品。 本发明的径向嵌段共聚物的pS组分包含约14至约24份/ 100份重量的径向嵌段共聚物; 径向嵌段共聚物的分子量（以聚苯乙烯当量计）为约200,000至约400,000; 并且pI-pB片段中的聚丁二烯的重量量小于50重量％。

    RADIAL BLOCK COPOLYMERS, HOT MELT ADHESIVE COMPOSITIONS, AND ARTICLES PRODUCED THEREFROM
    3.
    发明申请
    RADIAL BLOCK COPOLYMERS, HOT MELT ADHESIVE COMPOSITIONS, AND ARTICLES PRODUCED THEREFROM 审中-公开
    径向嵌段共聚物，热熔粘合剂组合物及其生产的制品

    公开(公告)号：WO1992020725A1

    公开(公告)日：1992-11-26

    申请号：PCT/US1992004334

    申请日：1992-05-22

    Applicant: THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS INC.

    Inventor： THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS INC. ,  DIEHL, Charles, F. ,  MARCHAND, Gary, R. ,  MYERS, Michael, O. ,  TANCREDE, Jean, M.

    IPC: C08F297/04

    CPC classification number: A61L15/58 ,  A61F13/58 ,  B32B7/12 ,  C08F297/046 ,  C08L2666/02 ,  C09J153/02 ,  Y10T428/24826 ,  Y10T428/31855 ,  Y10T428/31924 ,  Y10T442/678 ,  C08L53/02

    Abstract: Radial block copolymers characterized by the formulae: (1) (pS-pI)nX and (2) (pS-pI-pB)nX where pS is polystyrene, pI is polyisoprene, pB is butadiene, X is a residue of a multifunctional coupling agent used in the production of the radial block copolymer, and n is a number greater than 2 representative of the number of branches appended to X; hot-melt adhesive compositions constituted of said radial block copolymers, and articles of manufacture produced therefrom. These compolymers possess blocks of high average molecular weight polystyrene (10,000 to 25,000) and an overall average molecular weight (90,000 to 380,000) such that when blended in requisite proportions with a compatible tackifier resin, preferably also a secondary tackifying resin or plasticizing oil, and stabilizer, superior hot-melt adhesive compositions can be formed. The hot-melt adhesive compositions possess, inter alia, superior heat resistance, superior static time to failure with low viscosity, good peel adhesion, good tack, and high ability to bond to a polyethylene or polypropylene substrate at temperatures below that which may damage the substrate.

    Abstract translation: 其特征在于式（1）（pS-pI）nX和（2）（pS-pI-pB）nX的径向嵌段共聚物，其中pS是聚苯乙烯，pI是聚异戊二烯，pB是丁二烯，X是多官能偶联 用于生产径向嵌段共聚物的试剂，n为大于2的数字，代表附着于X的分枝数; 由所述径向嵌段共聚物构成的热熔粘合剂组合物和由其制备的制品。 这些共聚物具有高平均分子量聚苯乙烯（10,000至25,000）和总平均分子量（90,000至380,000）的嵌段，使得当以相容的比例与相容性增粘树脂（优选也可以是二次增粘树脂或增塑油）共混时， 可以形成优良的热熔粘合剂组合物。 热熔性粘合剂组合物具有优异的耐热性，优异的静态时间与低粘度的破坏，良好的剥离粘合性，良好的粘性，以及在低于可能损坏聚乙烯或聚丙烯基材的温度下结合到聚乙烯或聚丙烯基材上的高能力 基质。

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