Method for producing conjugated diene polymer, conjugated...

Details Method for producing conjugated diene polymer, conjugated... Method for producing conjugated diene polymer, conjugated...

2008-06-17

2011-12-06

Moore, Margaret G (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S105000, C524S571000, C524S572000, C524S575000, C524S588000

Reexamination Certificate

active

08071682

ABSTRACT:
A method for producing a conjugated diene polymer is provided that includes a step of polymerizing a conjugated diene-containing monomer in a hydrocarbon solvent in the presence of an alkali metal catalyst, thus giving a polymer having a catalyst-derived alkali metal at one terminus of a polymer chain comprising a conjugated diene-based monomer unit, and a step of reacting the polymer obtained in the step of polymerizing and a trialkoxysilane compound represented by the formula below.(In the formula, M denotes an oxygen atom or a sulfur atom, R1, R2, and R3independently denote an alkyl group having 1 to 4 carbon atoms, m denotes an integer of 1 to 5, and n denotes an integer of 0 to 5.) There are also provided a conjugated diene polymer produced by the production method, and a polymer composition containing a rubber component that includes the conjugated diene polymer and carbon black and/or silica, the total content of the carbon black and the silica being 5 to 200 parts by weight relative to 100 parts by weight of the rubber component.

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Abstract JP 11 189616, Jul. 13, 1999.
Machine generated English language translation JP 11-189,616 (Jul. 13, 1999).

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