Process for the preparation of a block copolymer blend
    1.
    发明授权
    Process for the preparation of a block copolymer blend 失效
    制备嵌段共聚物共混物的方法

    公开(公告)号:US5405903A

    公开(公告)日:1995-04-11

    申请号:US208414

    申请日:1994-03-09

    CPC分类号: C08F297/04

    摘要: A process is provided for preparing block copolymer blend compositions, which process comprises the subsequent steps of polymerizing vinyl aromatic monomer, adding conjugated diene monomer to the polymerization mixture, adding more initiator, adding of a second portion of conjugated diene monomer, adding a second portion of vinyl aromatic monomer, and adding a terminating agent. A block copolymer composition is provided having a blend of a triblock copolymer A-B-B'-A' and a diblock copolymer B'-A'.

    摘要翻译: 提供了一种制备嵌段共聚物共混物组合物的方法,该方法包括以下步骤:聚合乙烯基芳族单体,向共聚混合物中加入共轭二烯单体,加入更多的引发剂,加入第二份共轭二烯单体,加入第二份 的乙烯基芳族单体,并加入终止剂。 提供具有三嵌段共聚物A-B-B'-A'和二嵌段共聚物B'-A'的共混物的嵌段共聚物组合物。

    Block copolymer composition, hot melt adhesive composition containing
it, and process for the preparation thereof
    2.
    发明授权
    Block copolymer composition, hot melt adhesive composition containing it, and process for the preparation thereof 失效
    嵌段共聚物组合物,含有它的热熔粘合剂组合物,及其制备方法

    公开(公告)号:US5461095A

    公开(公告)日:1995-10-24

    申请号:US265072

    申请日:1994-06-24

    摘要: A block copolymer composition comprising:(a) 100 parts by weight of a linear block copolymer comprising two polystyrene endblocks and one poly(conjugated diene) midblock, which block copolymer is obtained via a coupling reaction using a diglycidyloxy coupling agent and which block copolymer has a styrene content in the range of from 10 to 50% by weight based on the total weight of block copolymer and an apparent molecular weight in the range of from 100,000 to 400,000; and(b) 0.1 to 2 parts by weight of a stabilizer package consisting of:(b1) 6-(4-hydroxy-3,5-di-t-butylanilino)-2,4-bis-octylthio-1,3,5-triazine, and(b2) a tris-(nonylated phenyl) phosphite, in a weight ratio b1/b2 in the range of from 0.5 to 0.1.The block copolymer composition can be suitably applied in hot melt adhesive compositions.A process for preparing the block copolymer composition comprising the subsequent steps of preparing lithium terminated styrene-conjugated diene diblock copolymer chains, coupling these polymer chains by adding the diglycidyloxy coupling agent, adding the stabilizer package and recovering the block copolymer composition.

    摘要翻译: 一种嵌段共聚物组合物,其包含:(a)100重量份的包含两个聚苯乙烯端嵌段和一个聚(共轭二烯)中间嵌段的直链嵌段共聚物,该嵌段共聚物通过使用二缩水甘油氧基偶联剂的偶联反应获得,并且该嵌段共聚物具有 基于嵌段共聚物的总重量为10至50重量%,表观分子量为100,000至400,000的苯乙烯含量; 和(b)0.1至2重量份的稳定剂包,其包含:(b1)6-(4-羟基-3,5-二叔丁基苯胺基)-2,4-双辛基硫基-1,3, (b2)三(非 - 苯基)亚磷酸酯,重量比b1 / b2在0.5至0.1的范围内。 嵌段共聚物组合物可以适用于热熔粘合剂组合物。 一种制备嵌段共聚物组合物的方法,包括随后的制备锂封端的苯乙烯 - 共轭二烯二嵌段共聚物链的步骤,通过加入二缩水甘油氧基偶联剂偶联这些聚合物链,加入稳定剂包装并回收嵌段共聚物组合物。

    Linear block copolymers process for their preparation and adhesive
composition containing them
    3.
    发明授权
    Linear block copolymers process for their preparation and adhesive composition containing them 失效
    用于其制备的线性嵌段共聚物方法和含有它们的粘合剂组合物

    公开(公告)号:US5554697A

    公开(公告)日:1996-09-10

    申请号:US583241

    申请日:1996-01-05

    CPC分类号: C08F297/04 C09J153/02

    摘要: Block copolymers of the structure A-B-C-D of improved processability derived from a vinyl aromatic monomer and a conjugated diene, having a total bound vinyl aromatic content in the range of from 10 to 40 wt %, wherein the conjugated diene has been polymerized in a 1,2 or 3,4 addition in an amount of from 1 to 20% of the total bound conjugated diene, and wherein A represents a predominantly poly(vinylaromatic)block, B represents a predominantly poly(conjugated diene), D represents a predominantly poly(vinylaromatic)block, and C represents a tapered block of the conjugated diene occurring in the block B and a the vinyl aromatic occuring in the block D, wherein the tapering in block C shows an increasing content of vinyl aromatic monomer in the direction to block D, wherein the weight ratio of the conjugated diene occurring in block B and the conjugated diene occurring in block C is in the range of from 5:5 to 9:1, and wherein the total apparent molecular weight of which is in the range of from 130,000 to 300,000.

    摘要翻译: 乙烯基芳族单体和共轭二烯衍生的改进加工性的结构ABCD的嵌段共聚物,总结合的乙烯基芳族化合物含量为10〜40重量%,其中共轭二烯已经在1,2 或3,4加入量为总结合共轭二烯的1至20%,并且其中A表示主要为聚(乙烯基芳族化合物)嵌段,B表示主要为聚(共轭二烯),D表示主要为聚(乙烯基芳族化合物) )嵌段,C表示嵌段B中发生的共轭二烯的渐缩嵌段和在块D中发生的乙烯基芳族化合物,其中嵌段C中的渐缩显示乙烯基芳族单体在阻断D的方向上的含量增加, 其中嵌段B中发生的共轭二烯和嵌段C中发生的共轭二烯的重量比在5:5至9:1的范围内,其中总表观分子量在 从13万到30万。

    Linear block copolymers, process for their preparation and adhesive
composition containing them
    4.
    发明授权
    Linear block copolymers, process for their preparation and adhesive composition containing them 失效
    线性嵌段共聚物,其制备方法和含有它们的粘合剂组合物

    公开(公告)号:US5510423A

    公开(公告)日:1996-04-23

    申请号:US414842

    申请日:1995-03-31

    CPC分类号: C08F297/04 C09J153/02

    摘要: Block copolymers of the structure A-B-C-D of improved processability derived from a vinyl aromatic monomer and a conjugated diene, having a total bound vinyl aromatic content in the range of from 10 to 40 wt. %, wherein the conjugated diene has been polymerized in a 1,2 or 3,4 addition in an amount of from 1 to 20% of the total bound conjugated diene, and wherein A represents a predominantly poly(vinylaromatic)block, B represents a predominantly poly(conjugated diene), D represents a predominantly poly(vinylaromatic)block, and C represents a tapered block of the conjugated diene occurring in the block B and a the vinyl aromatic occuring in the block D, wherein the tapering in block C shows an increasing content of vinyl aromatic monomer in the direction to block D, wherein the weight ratio of the conjugated diene occurring in block B and the conjugated diene occurring in block C is in the range of from 5:5 to 9:1, and wherein the total apparent molecular weight of which is in the range of from 130,000 to 300,000.

    摘要翻译: 由乙烯基芳族单体和共轭二烯衍生的改进加工性的结构A-B-C-D的嵌段共聚物,其总结构乙烯基芳族化合物的含量范围为10〜40wt。 %,其中共轭二烯在1,2或3,4加成中以占总结合的共轭二烯的1至20%的量聚合,并且其中A表示主要是聚(乙烯基芳族化合物)嵌段,B表示 主要是聚(共轭二烯),D代表主要是聚(乙烯基芳族化合物)嵌段,C代表嵌段B中发生的共轭二烯的渐缩嵌段和在块D中发生的乙烯基芳族化合物,其中嵌段C中的渐缩显示 乙烯基芳族单体在阻挡D的方向上的含量增加,其中在嵌段B中发生的共轭二烯和在嵌段C中发生的共轭二烯的重量比在5:5至9:1的范围内,其中 其总表观分子量在13万至30万的范围内。