Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1995-06-07
1997-03-11
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524573, 524575, 5253323, 5253329, 525371, 525375, 525379, 525384, 526180, 526183, 526204, 526340, 502155, 502167, 260665R, 540450, 540596, 540612, 546184, 546186, 546191, 546208, 546210, 546192, 546 11, 546 4, 548400, 548579, 564487, 152450, C08K 304, C08F 450, C08F 3604
Patent
active
056102275
ABSTRACT:
The present invention provides anionic polymerization initiators, comprising lithium amino magnesiate complexes, resulting in diene polymer and copolymer elastomers. The invention initiators have stable living ends at high polymerization temperatures and produce polymers containing a high level of tertiary amine functionality. Such polymers exhibit an increased efficiency in coupling termination reactions, and elastomers and products prepared from such polymers exhibit reduced hysteresis properties. Methods are also provided for preparing the initiators, the polymers and the elastomers.
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Antkowiak Thomas A.
Hall James E.
Bridgestone/Firestone Inc.
Hall Daniel N.
Teskin Fred
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