公开(公告)号：US10316121B2

公开(公告)日：2019-06-11

申请号：US15546963

申请日：2016-01-28

申请人： Bridgestone Corporation

发明人： Joshua S. Dickstein

IPC分类号： C08F136/06 ,  C08F136/08 ,  C08K3/013 ,  C08K5/00

摘要： A method for preparing cis-1,4-polydienes having useful resistance to cold flow, the method comprising the steps of preparing a polymerization system including a reactive polymer by introducing a lanthanide-based catalyst and a conjugated diene monomer and adding a Lewis acid to the polymerization system including a reactive polymer.

公开(公告)号：US09663637B2

公开(公告)日：2017-05-30

申请号：US14142110

申请日：2013-12-27

申请人： BRIDGESTONE CORPORATION

发明人： Steven Luo ,  Joshua P. Abell ,  Joshua S. Dickstein

IPC分类号： C08C19/22 ,  C08C19/44 ,  C08L9/00 ,  C08K5/3415 ,  B60C1/00 ,  C08L15/00

CPC分类号： C08L9/00 ,  B60C1/00 ,  C08C19/22 ,  C08C19/44 ,  C08K3/04 ,  C08K5/3415 ,  C08L15/00

摘要： A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an unsaturated heterocycle containing an azolinyl group.

公开(公告)号：US20160237179A1

公开(公告)日：2016-08-18

申请号：US15026438

申请日：2014-10-01

申请人： BRIDGESTONE CORPORATION

发明人： Steven Luo ,  Joshua S. Dickstein

IPC分类号： C08C19/22 ,  C08L9/00

摘要： A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imine compound containing a cyano group.

摘要翻译： 一种制备官能化聚合物的方法，所述方法包括以下步骤：（i）聚合单体以形成反应性聚合物，和（ii）使反应性聚合物与含有氰基的亚胺化合物反应。

公开(公告)号：US11168160B2

公开(公告)日：2021-11-09

申请号：US16863458

申请日：2020-04-30

申请人： Bridgestone Corporation

发明人： Hyeonjae Kim ,  Joshua S. Dickstein ,  Dennis R. Brumbaugh ,  Zengquan Qin

IPC分类号： C08F36/06 ,  C08K3/04 ,  C08K3/06 ,  C08L47/00 ,  C08L21/00 ,  C08F4/52 ,  C08L9/00 ,  C08L7/02 ,  C08L15/02 ,  C08L19/00

摘要： Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ΔHm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).

公开(公告)号：US10774162B2

公开(公告)日：2020-09-15

申请号：US15546957

申请日：2016-01-28

申请人： Bridgestone Corporation

发明人： Joshua S. Dickstein ,  Steven Luo ,  Joshua Abell ,  Laura S. Kocsis ,  Kevin McCauley

IPC分类号： C08F136/06 ,  C08F2/60 ,  C08F2/02 ,  C08F136/08 ,  C08F4/42 ,  C08L9/00 ,  C08L21/00

摘要： A method for preparing cis-1,4-polydienes, the method comprising the steps of preparing a preformed, active lanthanide-based catalyst, aging the active lanthanide-based catalyst for more than 5 days to thereby formed an aged catalyst, and introducing the aged catalyst and conjugated diene monomer to be polymerized to thereby form an active polymerization mixture in which the conjugated diene monomer is polymerized to form a polydiene having a reactive chain end.

公开(公告)号：US10590208B2

公开(公告)日：2020-03-17

申请号：US15026438

申请日：2014-10-01

申请人： Bridgestone Corporation

发明人： Steven Luo ,  Joshua S. Dickstein

IPC分类号： C08C19/22 ,  C08C19/44 ,  C08F136/06 ,  C08L19/00 ,  C08K3/04 ,  C08L9/00

摘要： A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imine compound containing a cyano group.