Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1995-06-06
1996-07-16
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526180, 526335, 524571, 524575, 152450, C08F 3604, C08K 304
Patent
active
055368018
ABSTRACT:
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 polymer and a lithium atom is incorporated at the "living" end of the polymer chain prior to quenching. The initiator may be used to polymerize a monomer(s) including diolefin monomers, monovinyl aromatic monomers and trienes, and the living ends of the polymers are effectively maintained even at temperatures of up to 300.degree. F. and higher. Such polymers exhibit an increased efficiency in coupling termination reactions, and products prepared from such polymers exhibit improved hysteresis characteristics. Products such as tires and the like can be prepared from such polymers and from vulcanizable elastomer compositions employing the polymers.
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One page translation of Japanese Abstract, Japanese Patent Application 87-180892/26.
One page Derwent Abstract of Japanese Patent JP54065788.
Antkowiak Thomas A.
Hall James E.
Lawson David F.
Schreffler John R.
Stayer, Jr. Mark L.
Bridgestone Corporation
Hall Daniel N.
Teskin Fred
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