ELASTIC FILM GRADE THERMOPLASTIC POLYMER COMPOSITIONS HAVING IMPROVED ELASTIC PERFORMANCE
    1.
    发明授权
    ELASTIC FILM GRADE THERMOPLASTIC POLYMER COMPOSITIONS HAVING IMPROVED ELASTIC PERFORMANCE 有权
    FOR柔性薄膜的合适的热塑性聚合物组合物具有改进的回弹性能好

    公开(公告)号:EP2074173B1

    公开(公告)日:2010-02-10

    申请号:EP07818388.6

    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.

    ELASTIC FILM GRADE THERMOPLASTIC POLYMER COMPOSITIONS HAVING IMPROVED ELASTIC PERFORMANCE
    2.
    发明公开
    ELASTIC FILM GRADE THERMOPLASTIC POLYMER COMPOSITIONS HAVING IMPROVED ELASTIC PERFORMANCE 有权
    FOR柔性薄膜的合适的热塑性聚合物组合物具有改进的回弹性能好

    公开(公告)号:EP2074173A1

    公开(公告)日:2009-07-01

    申请号:EP07818388.6

    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.

    THERMOPLASTIC ELASTOMER COMPOSITION
    4.
    发明授权
    THERMOPLASTIC ELASTOMER COMPOSITION 有权
    热塑性弹性体组合物

    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

    IPC分类号: C08F297/04 C08L53/02

    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)。

    IMPROVED THERMOPLASTIC ELASTOMER COMPOSITION
    5.
    发明公开
    IMPROVED THERMOPLASTIC ELASTOMER COMPOSITION 有权
    一种热塑性弹性体组合物

    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

    IPC分类号: C08F297/04 C08L53/02

    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.