Process for making diene polymer rubbers
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United States of America Patent
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Oct 7, 1986
Grant Date -
N/A
app pub date -
Oct 22, 1985
filing date -
Oct 26, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for making a diene polymer rubber which comprises reacting an active diene polymer rubber having alkali metal and/or alkaline earth metal terminals, which is obtained by polymerizing a conjugated diene monomer alone or together with an aromatic vinyl monomer in a hydrocarbon solvent, using an alkali metal and/or alkaline earth metal initiator, with (1) a tin compound expressed by the general formula R.sub.a S.sub.n X.sub.b (in which R stands for an alkyl, alkenyl, cycloalkenyl or aromatic hydrocarbon group; X is a halogen atom; a is an integer of 0-2, and b is an integer of 2-4), and (2) at least one organic compound selected from the group consisting of aminoaldehydes, aminoketones, aminothioaldehydes, aminothioketones and the organic compounds having in their molecules ##STR1## (in which A stands for an oxygen or sulfur atom).
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