公开(公告)号：CA2175746A1

公开(公告)日：1996-11-04

申请号：CA2175746

申请日：1996-05-03

Applicant: BRIDGESTONE CORP

Inventor： LAWSON DAVID F ,  HALL JAMES E ,  OZAWA YOISHI

IPC: C08F4/48 ,  C07D295/22 ,  C08C19/44 ,  C08F4/08 ,  C08F4/42 ,  C08F36/04 ,  C08F36/06 ,  C08F236/10 ,  C07F1/02

Abstract: An acyclic alkane soluble anionic polymerization initiator includes a mixture of from about 90 to about 10 parts by weight of a lithio amine having the general formula A1Li and from about 10 to about 90 parts by weight of at least one other lithio amine having the general formula A2Li. A1 and A2 are selected from the dialkyl, alkyl, cycloalkyl and dicycloalkyl amine radicals andcyclic amine radicals. There is also provided a method of forming a mixture of anionic polymerization initiators, a functionalized polymer and a method of forming a functionalized polymer.

公开(公告)号：CA2168498A1

公开(公告)日：1996-08-02

申请号：CA2168498

申请日：1996-01-31

Applicant: BRIDGESTONE CORP

Inventor： LAWSON DAVID F ,  ANTKOWIAK THOMAS A ,  HALL JAMES E ,  STAYER MARK L JR ,  SCHREFFLER JOHN R

IPC: B60C1/00 ,  C08C19/44 ,  C08F2/04 ,  C08F2/06 ,  C08F4/42 ,  C08F4/48 ,  C08F36/04 ,  C08K3/04 ,  C08L19/00 ,  C08L101/00 ,  C08L101/02 ,  C08F8/30 ,  C08L39/04

Abstract: A functionalized polymer according to the invention includes a polymer molecule having the general formula AYLi where A is a cyclic aminecontaining radical having the general formula wherein R1 is a divalent alkylene, an oxy- or amino-alkylene, or substituted alkylene having from 6 to about 20 carbon atoms; R2 is a linear-, branched-, or cyclo-alkylene having from about 2 to about 20 carbon atoms; and Y is a divalentpolymer radical and Li is a lithium atom bonded to a carbon atom of Y.

公开(公告)号：DE69205931T2

公开(公告)日：1996-04-04

申请号：DE69205931

申请日：1992-09-03

Applicant: BRIDGESTONE CORP

Inventor： HALL JAMES E

IPC: C08F2/06 ,  C08F2/04 ,  C08F2/08 ,  C08F2/14 ,  C08F212/00 ,  C08F212/04 ,  C08F212/08 ,  C08F236/00 ,  C08F236/10

Abstract: The present invention relates to a process for the dispersion copolymerization of 35 to 70% by weight of vinyl substituted aromatic monomer and 30 to 65% by weight of conjugated diene monomer comprising carrying out the copolymerization in a reaction mixture containing a liquid aliphatic linear hydrocarbon dispersing medium, an anionic catalyst system, and a block copolymer dispersing agent comprising at least two polymer blocks wherein at least one of the polymer blocks is soluble in the dispersing medium and at least another of the polymer blocks is insoluble in the dispersing medium and the dispersing agent acts to disperse a random copolymer of vinyl substituted aromatics and conjugated dienes formed in the presence of the dispersing agent.

公开(公告)号：ES2079715T3

公开(公告)日：1996-01-16

申请号：ES92105330

申请日：1992-03-27

Applicant: BRIDGESTONE CORP

Inventor： HALL JAMES E

IPC: C07D407/04 ,  C08F4/42 ,  C08F4/48 ,  C08F4/56 ,  C08F36/04 ,  C08F212/00 ,  C08F212/06 ,  C08F212/32 ,  C08F236/10

Abstract: A method for preparing a diene polymer or copolymer having increased amounts of 1,2-microstructure is provided. The method involves polymerizing a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer in a hydrocarbon solvent in the presence of a catalytically effective amount of a catalyst composition comprising: (a) an organolithium initiator and (b) an oxolanyl cyclic acetal having the structural formula: wherein R is selected from the group consisting of hydrogen and alkyl groups containing from 1 to 4 carbon atoms and X is 0 or 1.

公开(公告)号：CA2112003A1

公开(公告)日：1994-06-23

申请号：CA2112003

申请日：1993-12-21

Applicant: BRIDGESTONE CORP

Inventor： HALL JAMES E

IPC: C08F2/44 ,  C08F212/00 ,  C08F212/06 ,  C08F236/10 ,  C08F297/04 ,  C08L9/06 ,  C08J3/02

Abstract: The present invention relates to a process for the dispersion copolymerization of 35 to 70% by weight of vinyl substituted aromatic monomer and 30 to 65% by weight of conjugated diene monomer comprising carrying out the copolymerization in a reaction mixture containing a liquid aliphatic hydrocarbon dispersing medium, an anionic catalyst system, and an "A" block of a copolymer dispersing agent, the dispersing agent having at least two polymer blocks wherein at least one of the polymer blocks is soluble in the dispersing medium and at least another of the polymer blocks is insoluble in the dispersing medium and is formed in situ.

公开(公告)号：CA2088453A1

公开(公告)日：1993-08-01

申请号：CA2088453

申请日：1993-01-29

Applicant: BRIDGESTONE CORP

Inventor： HALL JAMES E ,  ROGGEMAN DAVID M

IPC: C08F2/00 ,  C08F2/06 ,  C08F2/08 ,  C08F236/10 ,  C08F297/04

Abstract: A process is disclosed for preparing continuously tapered SBR-type copolymers optionally having a continuous change in microstructure along the polymer. The process produces tapered block copolymers with multiple glass transition temperatures of very small energy absorption, i.e. no definable glass transition temperature.

公开(公告)号：CA2077371A1

公开(公告)日：1993-03-04

申请号：CA2077371

申请日：1992-09-02

Applicant: BRIDGESTONE CORP

Inventor： HALL JAMES E

IPC: C08F2/00 ,  C08F2/38 ,  C08F36/00 ,  C08F236/04 ,  C08F236/10 ,  C08F297/04 ,  C08F293/00

Abstract: A process for preparing continuously tapered polymers and copolymers having a continuous change in microstructure along the polymer backbone is disclosed. The process produces polymers and copolymers with multiple glass transition temperatures of very small energy absorption, i.e. no definable glass transition temperature. The polymers have a flexible chain end and they progressively become stiffer along the length of the chain.

公开(公告)号：CA2065103A1

公开(公告)日：1992-10-06

申请号：CA2065103

申请日：1992-04-03

Applicant: BRIDGESTONE CORP

Inventor： HALL JAMES E

IPC: C07D407/04 ,  C08F4/42 ,  C08F4/48 ,  C08F4/56 ,  C08F36/04 ,  C08F212/00 ,  C08F212/06 ,  C08F212/32 ,  C08F236/10 ,  C08F36/00 ,  C08F136/00 ,  C08F212/08 ,  C08F236/00

Abstract: A method for preparing a diene polymer or copolymer having increased amounts of 1,2-microstructure is provided. The method involves polymerizing a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer in a hydrocarbon solvent in the presence of a catalytically effective amount of a catalyst composition comprising: (a) an organolithium initiator and (b) an oxolanyl cyclic acetal having the structural formula: wherein R is selected from the group consisting of hydrogen and alkyl groups containing from 1 to 4 carbon atoms and X is 0 or 1.

公开(公告)号：ES2241821T3

公开(公告)日：2005-11-01

申请号：ES01933308

申请日：2001-05-10

Applicant: BRIDGESTONE CORP

Inventor： HOGAN TERRENCE E ,  HERGENROTHER WILLIAM L ,  HALL JAMES E

IPC: B60C1/00 ,  C08C19/44 ,  C08F8/12 ,  C08F8/42 ,  C08G65/48 ,  C08G81/02 ,  C08K3/04 ,  C08K3/36 ,  C08L21/00 ,  C08L101/00

Abstract: Un compuesto de alcóxido polimérico que tiene la fórmula: (PAO)nM+zP¿z-n en la que P es una cadena de polímeros; AO es un grupo alcóxido; P¿ es otra cadena de polímeros P o es un grupo "R" seleccionado del grupo constituido por grupos alquilo que tienen de uno a 30 átomos de carbono, grupos aromáticos que tienen de 6 a 20 átomos de carbono y grupos cicloalquilo que tienen de 5 a 20 átomos de carbono; M es un átomo metálico o un átomo no metálico que tiene un estado de oxidación "z" mayor que uno, en el que el átomo no metálico se selecciona del grupo constituido por átomos de fósforo, boro, nitrógeno y azufre; y n es un entero que tiene un valor de 1 a z.

公开(公告)号：DE69826422D1

公开(公告)日：2004-10-28

申请号：DE69826422

申请日：1998-11-18

Applicant: BRIDGESTONE CORP

Inventor： HALL JAMES E ,  GRAVES DANIEL F ,  TAKEICHI HIDEO

IPC: C08F2/06 ,  C08F297/04

Abstract: The dispersibility of the initial polystyrene block in forming a S-B-S type of copolymer is improved by first preparing a small block of homopolydiene such as homopolybutadiene as a dispersing agent. Onto this small block of homopolybutadiene, the first block of polystyrene is formed and affixed and thereby made dispersible in a mixture of alkanes and 15 to 60% by weight of cycloalkanes, preferably hexane and cyclohexane. After the preparation of the dispersing agent and the first styrene block, the remaining monomer charges to the reactor are fed in aliphatic hydrocarbon diluents, preferably hexane or technical hexane, thereby greatly reducing the final percentage of cycloalkanes including cyclohexane in the reactor to less than 25% of total dispersing medium. The block copolymers produced according to the present process display a narrow molecular weight distribution and improved tensile strength over block copolymers produced in the absence of the additional cycloalkanes in the solvent system.