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1.发明授权
公开(公告)号：EP1326917B1
公开(公告)日：2005-10-12
申请号：EP01964083.8
申请日：2001-08-16
发明人： HALL, James , PAKDEL, Peyman
CPC分类号： C08L101/005 , C08C19/44 , C08F279/02 , C08F290/06 , C08F297/044 , C08L9/00 , C08L9/06 , C08L21/00 , C08L51/04 , C08L53/02 , C08L2666/02
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公开(公告)号：EP1189983B1
公开(公告)日：2010-04-21
申请号：EP00936192.4
申请日：2000-05-19
CPC分类号： C08L9/00 , C08F36/06 , Y02T10/862 , C08F4/545 , C08L2666/08
摘要： A process for polymerizing 1,3-butadiene into a low molecular weight high-cis polybutadiene is described using a catalyst system comprising: (a) a neodymium-containing compound, (b) an aluminoxane or a trialkyl aluminum compound, (c) an organoaluminum hydride, and (d) a halogen source. A blend of a high molecular weight high-cis polybutadiene and the low molecular weight high-cis polybutadiene is also disclosed for use in pneumatic tire treads. Desirably both the high and the low molecular weight polymers have high cis contents, with the low molecular weight polymer being at least 70 percent cis and the high molecular weight polymer being at least 92 percent cis. Desirably both polymers are made with a neodymium catalyst system. The blends provide a balance of properties including good snow traction, wet traction, and rolling resistance while providing a balance of good physical properties including tension at break, modulus etc.
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公开(公告)号：EP1161494B1
公开(公告)日：2005-04-06
申请号：EP00907255.4
申请日：2000-02-11
发明人： HAMADA, Tatsuro, Bridgestone Corporation , HAYES, Michael, W. , WANG, Xiaorong , FOLTZ, Victor, J. , KELLEY, Edward, D. , PAKDEL, Peyman
IPC分类号： C08L21/00
CPC分类号： C08K5/01 , C08L21/00 , C08L51/006 , C08L51/04 , C08L75/14 , C08L23/16 , C08L2666/02 , C08L2666/08
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4.发明公开
公开(公告)号：EP1326917A2
公开(公告)日：2003-07-16
申请号：EP01964083.8
申请日：2001-08-16
发明人： HALL, James , PAKDEL, Peyman
CPC分类号： C08L101/005 , C08C19/44 , C08F279/02 , C08F290/06 , C08F297/044 , C08L9/00 , C08L9/06 , C08L21/00 , C08L51/04 , C08L53/02 , C08L2666/02
摘要： A vulcanizate comprising a rubber, and a damping component that is prepared by preparing a mixture of living polymers that include living polymers with at least two living ends and living polymers with one living end to form a mixture of living polymers, and coupling the mixture of living polymers with a coupling agent that has at least three reactive functionalities.
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公开(公告)号：EP1161494A1
公开(公告)日：2001-12-12
申请号：EP00907255.4
申请日：2000-02-11
发明人： HAMADA, Tatsuro,Bridgestone Corporation , HAYES, Michael, W. , WANG, Xiaorong , FOLTZ, Victor, J. , KELLEY, Edward, D. , PAKDEL, Peyman
IPC分类号： C08L21/00
CPC分类号： C08K5/01 , C08L21/00 , C08L51/006 , C08L51/04 , C08L75/14 , C08L23/16 , C08L2666/02 , C08L2666/08
摘要： A vulcanizate that has improved damping properties where the vulcanizate is prepared by the steps comprising blending a damping additive within a vulcanizable composition of matter, wherein the vulcanizable composition of matter includes a vulcanizable elastomer, and effecting vulcanization of the elastomer.
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公开(公告)号：EP1189983A2
公开(公告)日：2002-03-27
申请号：EP00936192.4
申请日：2000-05-19
CPC分类号： C08L9/00 , C08F36/06 , Y02T10/862 , C08F4/545 , C08L2666/08
摘要： A process for polymerizing 1,3-butadiene into a low molecular weight high-cis polybutadiene is described using a catalyst system comprising: (a) a neodymium-containing compound, (b) an aluminoxane or a trialkyl aluminum compound, (c) an organoaluminum hydride, and (d) a halogen source. A blend of a high molecular weight high-cis polybutadiene and the low molecular weight high-cis polybutadiene is also disclosed for use in pneumatic tire treads. Desirably both the high and the low molecular weight polymers have high cis contents, with the low molecular weight polymer being at least 70 percent cis and the high molecular weight polymer being at least 92 percent cis. Desirably both polymers are made with a neodymium catalyst system. The blends provide a balance of properties including good snow traction, wet traction, and rolling resistance while providing a balance of good physical properties including tension at break, modulus etc.
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