Paramethylstyrene block copolymers and their use 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
WO2014046989 A3 2014-07-10 [WO201446989]WO2014046989 A2 2014-03-27 [WO201446989] / 2014-07-102014-03-27
申请号/申请日
2013WO-US59871 / 2013-09-16
发明人
WRIGHT KATHRYN;
申请人
KRATON POLYMERS;
主分类号
IPC分类号
C08F-012/08C08F-112/08
摘要
(WO201446989) The present invention comprises an uncrosslinked composition of a styrenic block copolymer and PMS-I/B-PMS (paramethylstyrene-isoprene/butadiene-paramethylestyrene) block copolymer, optionally with one or more antioxidants and a carbon radical scavenger.  The mid-block I/B is a random mixture of isoprene and butadiene.  Further, a process is disclosed for making the uncrosslinked composition.  The present invention also includes an uncrosslinked composition of homo polystyrene, and PMS-I/B-PMS block copolymer, optionally with one or more antioxidants and a carbon radical scavenger.  The present invention also comprises a crosslinked polyolefin-free composition of PMS-I/B-PMS block copolymer, optionally with a styrenic block copolymer and one or more antioxidants, a carbon radical scavenger, and free radical initiator.  The present invention also includes an article incorporating an uncrosslinked composition of a styrenic block copolymer and homo polystyrene, and PMS-I/B-PMS block copolymer, optionally with one or more antioxidants and a carbon radical scavenger.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2012US-13622575 2012-09-19
主权利要求
(WO201446989) 1. An uncrosslinked elastomeric composition, suitable for elastic film or fiber, comprising: a block copolymer containing from about 0 wt.% to about 75 wt.% of at least two end blocks of monovinylarene and at least one block of conjugated diene, and from about 20 wt.% to about 100 wt.% of para methylstyrene-isoprene/butadieneparamethylstyrene of the formula PMS-I/B-PMS linear block copolymer or (PMS-I/B)[n]X coupled block copolymer, where the melt flow rates of the individual S-B-S and PMS-I/B-PMS polymers are about 5 g polymer per 10 minutes, or greater, when measured at 200.deg.C and 5 kg weight according to ASTM D1238; said composition optionally further including: 0. to about 0.5 wt.% primary antioxidant; 0. to about 0.5 wt.% secondary antioxidant; and 0. to about 0.8 wt.%> carbon radical scavenger; wherein the total wt.% of all components is 100. Claim 11. A process for making an uncrosslinked elastomeric film or fiber, comprising: forming a composition by: mixing from about 0 wt.% to about 75 wt.% of block copolymer, having at least two end blocks of monovinyl arene and at least one block of conjugated diene, with from about 20 wt.% to about 100 wt.% of para methylstyrene-isoprene/butadiene-para methylstyrene of the formula PMS-I/B-PMS linear block copolymer or (PMS-I/B)[n]X coupled block copolymer, optionally adding to said mixture 0.01 to 0.4 wt.% antioxidant, 0.01 to 0.4 wt.% secondary antioxidant, and 0.2 to about 0.8 wt.% carbon radical scavenger, wherein the total wt.% of all composition components is 100%, and wherein the melt flow rates of the individual S-B-S and PMS-I/B-PMS polymers are about 5 g polymer per 10 minutes, or greater, when measured at 200.deg.C and 5 kg weight according to ASTM D1238; melting said composition; and extruding said composition into an uncrosslinked film or fiber. Claim 17. An uncrosslinked elastomeric composition, suitable for elastic film or fiber, comprising: a block copolymer containing from about 2 wt.% to about 20 wt.% of homo polystyrene and from about 75 wt.% to about 98 wt.% of para methylstyrene-isoprene/butadieneparamethylstyrene of the formula PMS-I/B-PMS linear block copolymer or (PMS-I/B)[n]X coupled block copolymer, where the melt flow rates of the PMS-I/B-PMS polymers are about 5 g polymer per 10 minutes, or greater, when measured at 200.deg.C and 5 kg weight according to ASTM D1238; said composition optionally further including: 0. 0 to about 0.5 wt.% primary antioxidant; 0. 0 to about 0.5 wt.% secondary antioxidant; and 0. to about 0.8 wt.%> carbon radical scavenger; wherein the total wt.% of all components is 100%. Claim 18. A crosslinked polyole fin- free elastomeric composition, suitable for elastic film or fiber, comprising: a block copolymer containing from about 0 wt.% to about 75 wt.% of at least two end blocks of monovinylarene and at least one block of conjugated diene, and from about 20 wt.% to about 100 wt.% of para methylstyrene-isoprene/butadieneparamethylstyrene of the formula PMS-I/B-PMS linear block copolymer or (PMS-I/B)[n]X coupled block copolymer, where the melt flow rates of the individual S-B-S and PMS-I/B-PMS polymers are about 5 g polymer per 10 minutes, or greater, when measured at 200.deg.C and 5 kg weight according to ASTM D1238; said composition optionally further including: 0. to about 0.5 wt.% primary antioxidant; 0. to about 0.5 wt.% secondary antioxidant; 0. to about 0.8 wt.%> carbon radical scavenger; and 0. to about 5.0 wt % free radical initiator and/or pro-rad additive wherein the total wt.% of all components is 100%, and no component is polyolefm. Claim 21. An article such as elastic film or fiber, comprising: an elastomeric, crosslinked, polyolefm-free article of block copolymer containing from about 0 wt.% to about 75 wt.% of block copolymer having at least two endblock of monovinylarene, and at least one block of conjugated diene, and from about 20 wt.% to about 100 wt.% of para methylstyrene-isoprene/butadieneparamethylstyrene of the formula PMS-I/B-PMS linear block copolymer or (PMS-I/B)[n]X coupled block copolymer, where the melt flow rates of the individual S-B-S and PMS-I/B-PMS polymers are about 5 g polymer per 10 minutes, or greater, when measured at 200.deg.C and 5 kg weight according to ASTM D1238; said composition optionally further including: 0. 0 to about 0.5 wt.% primary antioxidant; 0. 0 to about 0.5 wt.% secondary antioxidant; 0. to about 0.8 wt.% carbon radical scavenger; and 0. to about 5 wt.% free radical initiator and/or pro-rad additive; wherein the total wt.% of all components is 100%, and no component is polyolefm. Claim 22. An uncrosslinked elastomeric article, such as elastic film or fiber, comprising: an elastomeric uncrosslinked article of block copolymer containing from about 2 wt.% to about 20 wt.% of homo polystyrene and from about 75 wt.% to about 98 wt.% of para methylstyrene-isoprene/butadieneparamethylstyrene of the formula PMS-I/B-PMS linear block copolymer or (PMS-I/B)[n]X coupled block copolymer, where the melt flow rates of the PMS-I/B-PMS polymers are about 5 g polymer per 10 minutes, or greater, when measured at 200.deg.C and 5 kg weight according to ASTM D1238; said composition optionally further including: . 0 to about 0.5 wt.% primary antioxidant; . 0 to about 0.5 wt.% secondary antioxidant; and . to about 0.8 wt.% carbon radical scavenger; wherein the total wt.% of all components is 100%.
法律状态
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专利类型码
A3A2
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