1
Mark L Stayer Jr, Thomas A Antkowiak, David F Lawson, Russell W Koch: Diene polymers and copolymers terminated by reaction with N-alkyl and N-aryl imines. Bridgestone Firestone, Frank J Troy Sr, November 19, 1991: US05066729 (104 worldwide citation)

A process is provided for preparing a terminally functionalized polymer from a living polymer obtained by anionic polymerization of a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer which comprises reacting the living polymer with a compound having the formula: # ...


2
David F Lawson, Koichi Morita, Yoichi Ozawa, Mark L Stayer Jr, Ryota Fujio: Soluble anionic polymerization initiators and preparation thereof. Bridgestone Corporation, Daniel N Hall, July 12, 1994: US05329005 (77 worldwide citation)

The present invention is directed toward anionic polymerization initiators which are soluble in hydrocarbon solvents. The initiators include a lithio amine having the general formula ALi. The component A is a dialkyl or dicycloalkyl amine radical or a cyclic amine. The invention is also directed tow ...


3
David F Lawson, Mark L Stayer Jr, H James Harwood: Solubilized anionic polymerization initiator and preparation thereof. Bridgestone Corporation, Daniel N Hall, July 26, 1994: US05332810 (76 worldwide citation)

The present invention is directed toward anionic polymerization initiators which are soluble in acyclic alkane solvents. The initiators include a solubilized lithio amine having the general formula (A)Li(SOL).sub.y. SOL is a solubilizing component and A is an alkyl, dialkyl or cycloalkyl amine radic ...


4
Thomas A Antkowiak, James E Hall, David F Lawson, John R Schreffler, Mark L Stayer Jr: Tertiary-amino allyl-or xylyl-lithium initiators and method of preparing same. Bridgestone Corporation, Daniel N Hall, May 28, 1996: US05521309 (74 worldwide citation)

An anionic polymerization initiator includes the C-lithio reaction product of an organolithium compound and a tertiary-amino allyllithium or a tertiary-amino xylyllithium. When used in an anionic polymerization, a functional group from the initiator is incorporated onto the head of the growing polym ...


5
David F Lawson, Thomas A Antkowiak, James E Hall, Mark L Stayer Jr, John R Schreffler: Alkyllithium compounds containing cyclic amines and their use in polymerization. Bridgestone Corporation, Daniel N Hall, March 5, 1996: US05496940 (60 worldwide citation)

An organolithium compound according to the present invention containing a cyclic amino group, has the general formula: ##STR1## wherein R.sub.1 is a divalent alkylene, an oxy- or amino-alkylene, or substituted alkylene having from 6 to about 20 carbon atoms; R.sub.2 is a linear-, branched-, or cyclo ...


6
David F Lawson, Thomas A Antkowiak, James E Hall, Mark L Stayer Jr, John R Schreffler: Aminoalkyllithium compounds containing cyclic amines and polymers therefrom. Bridgestone Corporation, Daniel N Hall, November 12, 1996: US05574109 (51 worldwide citation)

A functionalized polymer according to the invention includes a polymer molecule having the general formula AYLi where A is a cyclic amine-containing radical having the general formula ##STR1## R.sub.1 is a divalent alkylene, an oxy- or amino-alkylene, or substituted alkylene having from 6 to about 2 ...


7
Thomas A Antkowiak, David F Lawson, Russell W Koch, Mark L Stayer Jr: Elastomers and products having reduced hysteresis. Bridgestone Firestone, Daniel N Hall, October 6, 1992: US05153159 (51 worldwide citation)

An anionic polymerization initiator comprising the reaction product of a functionalizing agent selected from the group consisting of substituted aldimines, ketimines and secondary amines and, an organolithium compound. Elastomeric polymers prepared with these initiators have functional sites incorpo ...


8
David F Lawson, Mark L Stayer Jr, Thomas A Antkowiak: Diene polymers and copolymers terminated with compounds having multiple-bonded nitrogen atoms and partially crosslinked with polyfunctional reagents. Bridgestone Firestone, Frank J Troy Sr, May 10, 1994: US05310798 (40 worldwide citation)

Diene polymers or copolymers having improved raw polymer viscosity and reduced hysteresis in the cured and carbon black reinforced state are provided. These diene polymers or copolymers are prepared by a method which involves first terminating substantially all of the living diene polymer or copolym ...


9
David F Lawson, Mark L Stayer Jr, Thomas A Antkowiak, John R Schreffler: Diene polymers and copolymers jumped by partial crosslinking and terminated with a substituted imine. Bridgestone Firestone, Frank J Troy Sr, July 13, 1993: US05227431 (38 worldwide citation)

Diene polymer or copolymer compositions having reduced hysteresis are provided. The compositions comprise a mixture of diene polymers or copolymers containing carbon-tin bonds in the main polymer or copolymer chains prepared by coupling polymer or copolymer chains with tin polyhalides and diene poly ...


10
Mark L Stayer Jr, Thomas A Antkowiak, David F Lawson, Russell W Koch: Diene polymers and copolymers terminated by reaction with N-alkyl and N-aryl imines. Bridgestone Firestone, Frank J Troy Sr, May 5, 1992: US05109907 (38 worldwide citation)

A process is provided for preparing a terminally functionalized polymer from a living polymer obtained by anionic polymerization of a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer which comprises reacting the living polymer with a compound having the formula: # ...