ELASTIC FILM GRADE THERMOPLASTIC POLYMER COMPOSITIONS HAVING IMPROVED ELASTIC PERFORMANCE
    12.
    发明申请
    ELASTIC FILM GRADE THERMOPLASTIC POLYMER COMPOSITIONS HAVING IMPROVED ELASTIC PERFORMANCE 审中-公开
    具有改进的弹性性能的弹性薄膜级热塑性聚合物组合物

    公开(公告)号:US20090247689A1

    公开(公告)日:2009-10-01

    申请号:US12441791

    申请日:2007-09-19

    IPC分类号: C08L53/02

    摘要: The present invention provides an improved block copolymer composition for extruding films having excellent stress relaxation and increased retained tension or load at elevated temperatures, as well as a film cast from this composition. The composition is comprised of (a) 100 parts by weight of a mixture of two or more hydrogenated styrenic block copolymers (HSBC's) having at least two polystyrene end-blocks and a mid-block of a polymerized diene wherein at least 80 mol % of the residual unsaturation has been hydrogenated, wherein HSBC #1 has an apparent number average molecular weight between 35,000 and 90,000 and a polystyrene content between 15 and 40 percent by weight, wherein HSBC #2 has an apparent number average molecular weight between 95,000 and 150,000 and a polystyrene content between 15 and 40 percent by weight, wherein the ration w/w of HSBC #1 versus HSBC #2 is in the range of from 8:1 to 1:8, (b) from 10 to 50 parts by weight per 100 parts by weight of polymer (phr) of a a medium molecular weight polystyrene (2) or a mixture of a low molecular weight polystyrene (1) and a medium molecular weight polystyrene (2), wherein PS (1) has a molecular weight in the range of 500 to 4,000 and PS(2) has a molecular weight in the range of 20,000 to 150,000 and wherein PS(1) and PS(2) are used in a weight ratio of 1:5 to 5:1, (c) from 3 to 50 phr of a filler, and (d) from 30 to 70 phr of a softening agent.

    摘要翻译: 本发明提供了一种用于挤出膜的改进的嵌段共聚物组合物,其具有优异的应力松弛和在升高的温度下增加的保持张力或载荷,以及由该组合物制成的薄膜。 该组合物包含(a)100重量份的具有至少两个聚苯乙烯端嵌段的两个或更多个氢化苯乙烯嵌段共聚物(HSBC)的混合物和聚合二烯的中间嵌段,其中至少80mol% 残余不饱和度被氢化,其中HSBC#1的表观数均分子量在35,000和90,000之间,聚苯乙烯含量在15-40重量%之间,其中HSBC#2的表观数均分子量在95,000和150,000之间, 聚苯乙烯含量在15-40重量%之间,其中HSBC#1与HSBC#2的配比w / w在8:1至1:8的范围内,(b)10至50重量份/ 100重量份的中等分子量聚苯乙烯(2)或低分子量聚苯乙烯(1)和中等分子量聚苯乙烯(2)的混合物的聚合物(phr),其中PS(1)的分子量为 500至4000的范围和PS(2)具有分子 重量在20,000至150,000范围内,并且其中PS(1)和PS(2)以1:5至5:1的重量比,(c)3至50phr的填料使用,和(d) 30至70phr的软化剂。

    GEL COMPOSITIONS
    13.
    发明申请
    GEL COMPOSITIONS 有权
    凝胶组合物

    公开(公告)号:US20090186958A1

    公开(公告)日:2009-07-23

    申请号:US12353438

    申请日:2009-01-14

    IPC分类号: C08K5/10 C08K5/11 C08F2/46

    摘要: Disclosed are four gel compositions that have improved properties over the prior art. These gels include elastosols, solid rubbery gels, UV cured gels and chemically cured gels. The gels are formed from selectively hydrogenated styrene/diene block copolymers, unhydrogenated styrene/diene block copolymers, and selectively hydrogenated styrene/diene block copolymers that have been maleated.

    摘要翻译: 公开了与现有技术相比具有改进性能的四种凝胶组合物。 这些凝胶包括弹性体,固体橡胶状凝胶,UV固化凝胶和化学固化的凝胶。 凝胶由选择性氢化的苯乙烯/二烯嵌段共聚物,未氢化的苯乙烯/二烯嵌段共聚物和已经马来化的选择性氢化的苯乙烯/二烯嵌段共聚物形成。

    LOW FLUID LOSS DRILLING FLUID COMPOSITIONS COMPRISING DIBLOCK COPOLYMERS
    14.
    发明申请
    LOW FLUID LOSS DRILLING FLUID COMPOSITIONS COMPRISING DIBLOCK COPOLYMERS 有权
    含有二嵌段共聚物的低流体损失钻井液组合物

    公开(公告)号:US20150275065A1

    公开(公告)日:2015-10-01

    申请号:US14226890

    申请日:2014-03-27

    IPC分类号: C09K8/32

    摘要: The invention relates to a selectively hydrogenated isoprene-styrene diblock copolymer having a polystyrene content of at least 40 wt. %, which when added to an oil-based mud composition, substantially reduces fluid loss. The polystyrene in the diblock has a true molecular weight greater than 60 kg/mole and the total apparent molecular weight of the diblock copolymer is at least 160 kg/mole. The drilling mud that contains about 0.5 pounds per barrel to about 10 pounds per barrel of a selectively hydrogenated isoprene-styrene diblock copolymer and a weighting agent, resulting in a drilling fluid composition exhibiting good suspension of the weighting agent and improved fluid loss performance.

    摘要翻译: 本发明涉及聚苯乙烯含量至少为40重量%的选择性氢化的异戊二烯 - 苯乙烯二嵌段共聚物。 %,当加入到油基泥浆组合物中时,基本上减少了液体损失。 二嵌段中的聚苯乙烯具有大于60kg / mol的真实分子量,二嵌段共聚物的总表观分子量至少为160kg / mol。 钻井泥浆含有约0.5磅/桶至约10磅/桶的选择性氢化的异戊二烯 - 苯乙烯二嵌段共聚物和加重剂,导致显示出良好的加重剂悬浮液和改进的流体损失性能的钻井液组合物。

    Elastomeric bicomponent fibers comprising block copolymers having high flow
    15.
    发明授权
    Elastomeric bicomponent fibers comprising block copolymers having high flow 有权
    弹性双组分纤维包含具有高流动性的嵌段共聚物

    公开(公告)号:US08003209B2

    公开(公告)日:2011-08-23

    申请号:US11515513

    申请日:2006-09-01

    IPC分类号: D02G3/00

    摘要: Bicomponent fibers comprising a thermoplastic polymer and an elastomeric compound are made which can be continuously extruded from the melt at high production rates. The elastomeric compound has high flow and consists essentially of a selectively hydrogenated block copolymer and a tackifier resin, an alpha-olefin copolymer, an alpha-olefin terpolymer, a wax or mixtures thereof. In one embodiment the block copolymer has at least one polystyrene block of molecular weight from 5,000 to 7,000 and at least one polydiene block of molecular weight from 20,000 to 70,000 and having a vinyl content of greater than 60 mol %. In a second embodiment the block copolymer has a vinyl content of less than 60 mol %. The bicomponent fibers are useful for the manufacture of articles such as woven fabrics, spun bond non-woven fabrics or filters, staple fibers, yarns and bonded, carded webs.

    摘要翻译: 制备包含热塑性聚合物和弹性体化合物的双组分纤维,其可以以高生产率从熔体中连续挤出。 弹性体化合物具有高流动性并且基本上由选择性氢化的嵌段共聚物和增粘树脂,α-烯烃共聚物,α-烯烃三元共聚物,蜡或其混合物组成。 在一个实施方案中,嵌段共聚物具有至少一个分子量为5,000至7000的聚苯乙烯嵌段和至少一种分子量为20,000至70,000且聚乙烯基含量大于60mol%的聚二烯嵌段。 在第二个实施方案中,嵌段共聚物的乙烯基含量小于60mol%。 双组分纤维可用于制造诸如机织织物,纺粘非织造织物或过滤器,短纤维,纱线和粘合的梳理纤维网之类的制品。

    Method for making selectively hydrogenated block copolymers of vinyl aromatic hydrocarbons and conjugated dienes
    20.
    发明授权
    Method for making selectively hydrogenated block copolymers of vinyl aromatic hydrocarbons and conjugated dienes 有权
    制备乙烯基芳烃和共轭二烯的选择性氢化嵌段共聚物的方法

    公开(公告)号:US07390856B2

    公开(公告)日:2008-06-24

    申请号:US10362145

    申请日:2001-08-24

    IPC分类号: C08C19/02 C08F236/10

    CPC分类号: C08F297/04 C08F8/04

    摘要: Disclosed is a method for making selectively hydrogenated block copolymers of vinyl aromatic hydrocarbons and conjugated dienes comprising: a) anionically polymerizing vinyl aromatic hydrocarbons and conjugated dienes to produce block copolymers with living chain ends; b) terminating the living chain ends; to produce a terminated block copolymer, with a member from the group consisting of an alcohol, hydrogen, and mixtures thereof, to prepare a terminated block copolymer; and c) contacting the terminated block copolymers with hydrogen at a temperature of from 20 to 175° C. in the presence of a catalyst prepared by combining a cobalt carboxylate with an aluminum alkyl, wherein: (i) if the polymer is terminated with an alcohol and the alcohol is a linear alcohol, the linear alcohol is used to terminate the living chain ends in an amount such that the alcohol:living chain end molar ratio is from 0.05 to 1.2: (ii) if the polymer is terminated with an alcohol and the alcohol is a branched alcohol, the branched alcohol is used to terminate the living chain ends in an amount such that the alcohol:living chain end molar ration is from 0.05 to about 3.0: an (iii) if the polymer is terminated with an alcohol and the alcohol is a mixture of a linear alcohol and a branched alcohol, the linear alcohol is used to terminate the living chain ends in an amount such that the linear alcohol:living chain end molar ration is from 0.05 to 1.2.

    摘要翻译: 公开了一种制备乙烯基芳烃和共轭二烯的选择性氢化嵌段共聚物的方法,包括:a)阴离子聚合乙烯基芳族烃和共轭二烯以产生具有活性链末端的嵌段共聚物; b)终止生命终端; 以制备封端的嵌段共聚物,其中包含醇,氢及其混合物的成员,以制备封端的嵌段共聚物; 和c)在通过将羧酸钴与烷基铝结合而制备的催化剂存在下,在20至175℃的温度下使封端的嵌段共聚物与氢接触,其中:(i)如果聚合物用 醇和醇是直链醇,直链醇用于终止活性链末端,使得醇:活性链末端摩尔比为0.05至1.2:(ii)如果聚合物用醇终止 并且醇是支链醇,支链醇用于终止活性链末端,其量使得醇:活性链末端摩尔比为0.05至约3.0:(iii)如果聚合物以 醇和醇是直链醇和支链醇的混合物,直链醇用于以直链醇:活性链末端摩尔比为0.05至1.2的量终止活性链末端。