Process for making diene copolymer rubbers
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United States of America Patent
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Sep 30, 1986
Grant Date -
N/A
app pub date -
Oct 22, 1985
filing date -
Oct 26, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for making a diene copolymer rubber having improved rebound, which comprises polymerizing a conjugated diene monomer with an aromatic vinyl monomer in a hydrocarbon solvent in the presence of an alkali metal and/or alkaline earth metal initiator, to form a dienyl-metal terminated, conjugated diene-aromatic vinyl copolymer rubber, and thereafter reacting the copolymer rubber with at least one reactant selected from the group consisting of aminoaldehydes, aminoketones, aminothioaldehydes and aminothioketones.
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