Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1992-09-08
1994-10-11
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526173, 526295, 526335, 526340, 526346, 524567, 524571, 524576, 524577, 525371, 525375, 525377, 525379, 525382, C08F 448, C08F 830, C08K 304
Patent
active
053548221
ABSTRACT:
An anionic polymerization initiator comprising the reaction product of a functionalizing agent selected from the group consisting of substituted aldimines, ketimines and secondary amines and, an organolithium compound. Elastomeric polymers prepared with these initiators have functional sites incorporated at the initiator end of the polymer chain and provide vulcanizable rubber compounds exhibiting reduced hysteresis. Articles such as tires, produced with low hysteresis elastomeric polymers have lower rolling resistance. Methods are also provided for preparing the initiators, functionalized polymers and vulcanizable elastomeric compounds having reduced hysteresis.
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Antkowiak Thomas A.
Koch Russell W.
Lawson David F.
Stayer, Jr. Mark L.
Bridgestone/Firestone Inc.
Hall Daniel N.
Teskin Fred
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