公开(公告)号：EP2010586B1

公开(公告)日：2010-05-26

申请号：EP07724659.3

申请日：2007-04-20

申请人： Kraton Polymers U.S. LLC

发明人： MUYLDERMANS, Xavier, Daniel, Dominique, Jean ,  DE GROOT, Hendrik ,  COLCHEN, Emmanuel ,  SOUTHWICK, Jeffrey, G. ,  WRIGHT, Kathryn, J. ,  COIGNOUL, Emmanuelle

IPC分类号： C08F297/04 ,  C08L53/02

CPC分类号： C08L53/02 ,  C08F297/044 ,  C08L53/025 ,  C08L2666/02 ,  C08L2666/24

摘要： The present invention relates to a thermoplastic elastomer composition having a durometer hardness (ASTM D2240) of Shore A 30 to 90 comprising: a) 100 parts by weight of a hydrogenated styrenic block copolymer comprising at least two blocks (A) of a polymer containing 50 %wt or more monovinyl aromatic hydrocarbon units, and at least one selectively hydrogenated block (B) of a polymer containing 50 %wt or more conjugated diene units, wherein the monovinyl aromatic hydrocarbon content is in the range of from 10 to 50 wt%, based on the total weight of block copolymer, wherein the vinyl content in the initially prepared poly(conjugated diene) block (B) is in the range of from 30 to 80 %, and wherein the hydrogenated styrenic block copolymer has a degree of hydrogenation of at least 30% with respect to the residual olefinic unsaturation in the block (B), which block copolymer optionally may be mixed with a diblock copolymer having one poly(monovinyl aromatic hydrocarbon) block and one poly(conjugated diene) block , in an amount of up to 40 wt%, b) from 20 to 150 parts by weight of a polyolefin (II); and c) from 50 to 300 parts by weight of a rubber softener (III) , preferably a paraffinic processing oil; and optionally d) from 0 to 300 parts by weight of a filler, characterized in that (i) the hydrogenated styrenic block copolymer (I) has a peak average apparent molecular weight of at least 250 kg/mole (ASTM D-5296), and (ii) the polyolefin (II) is a mixture of a high density polyethylene (Ma), having a MFR at 190°C/2.16 kg of from 5 to 50 g/10 min., and of a polypropylene (lib), having a MFR at 230°C/2.16 kg of from 1 to 40 g/10 min., (ASTM D1238), in a weight ratio (HaV(IIb) of from 0.2 to 5.

摘要翻译： 本发明涉及肖氏A 30-90的肖氏硬度（ASTM D2240）的热塑性弹性体组合物，其包含：a）100重量份的氢化苯乙烯嵌段共聚物，其包含至少两个嵌段（A） ％重量或更多的单乙烯基芳烃单元和至少一个选择性氢化的含50％重量或更多共轭二烯单元的聚合物嵌段（B），其中单乙烯基芳烃的含量为10-50重量％ 基于嵌段共聚物的总重量，其中初始制备的聚（共轭二烯）嵌段（B）中的乙烯基含量为30-80％，且其中氢化苯乙烯嵌段共聚物的氢化度为 相对于嵌段（B）中的残余烯属不饱和度至少为30％，该嵌段共聚物任选地可以与具有一个聚（单乙烯基芳烃）嵌段和一个聚（单乙烯基芳烃）嵌段的二嵌段共聚物混合， 共轭二烯）嵌段，其量为至多40重量％，b）20至150重量份的聚烯烃（II）; 和c）50至300重量份的橡胶软化剂（III），优选石蜡加工油; 其特征在于（i）氢化苯乙烯嵌段共聚物（I）的峰值平均表观分子量为至少250kg / mol（ASTM D-5296），和（ii）0-300重量份填料， 和（ii）聚烯烃（II）是在190℃/ 2.16kg下的MFR为5至50g / 10min的高密度聚乙烯（Ma）和聚丙烯（IIb）的混合物， 在230℃/ 2.16kg下的MFR为1-40g / 10min，（ASTM D1238），重量比（HaV（IIb）为0.2-5）。

公开(公告)号：EP2010586A1

公开(公告)日：2009-01-07

申请号：EP07724659.3

申请日：2007-04-20

申请人： Kraton Polymers U.S. LLC

发明人： MUYLDERMANS, Xavier, Daniel, Dominique, Jean ,  DE GROOT, Hendrik ,  COLCHEN, Emmanuel ,  SOUTHWICK, Jeffrey, G. ,  WRIGHT, Kathryn, J. ,  COIGNOUL, Emmanuelle

IPC分类号： C08F297/04 ,  C08L53/02

CPC分类号： C08L53/02 ,  C08F297/044 ,  C08L53/025 ,  C08L2666/02 ,  C08L2666/24

摘要： The present invention relates to a thermoplastic elastomer composition having a durometer hardness (ASTM D2240) of Shore A 30 to 90 comprising: a) 100 parts by weight of a hydrogenated styrenic block copolymer comprising at least two blocks (A) of a polymer containing 50 %wt or more monovinyl aromatic hydrocarbon units, and at least one selectively hydrogenated block (B) of a polymer containing 50 %wt or more conjugated diene units, wherein the monovinyl aromatic hydrocarbon content is in the range of from 10 to 50 wt%, based on the total weight of block copolymer, wherein the vinyl content in the initially prepared poly(conjugated diene) block (B) is in the range of from 30 to 80 %, and wherein the hydrogenated styrenic block copolymer has a degree of hydrogenation of at least 30% with respect to the residual olefinic unsaturation in the block (B), which block copolymer optionally may be mixed with a diblock copolymer having one poly(monovinyl aromatic hydrocarbon) block and one poly(conjugated diene) block , in an amount of up to 40 wt%, b) from 20 to 150 parts by weight of a polyolefin (II); and c) from 50 to 300 parts by weight of a rubber softener (III) , preferably a paraffinic processing oil; and optionally d) from 0 to 300 parts by weight of a filler, characterized in that (i) the hydrogenated styrenic block copolymer (I) has a peak average apparent molecular weight of at least 250 kg/mole (ASTM D-5296), and (ii) the polyolefin (II) is a mixture of a high density polyethylene (Ma), having a MFR at 190°C/2.16 kg of from 5 to 50 g/10 min., and of a polypropylene (lib), having a MFR at 230°C/2.16 kg of from 1 to 40 g/10 min., (ASTM D1238), in a weight ratio (HaV(IIb) of from 0.2 to 5.