Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1991-01-02
1993-12-07
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526176, 526190, 526335, 524571, 524572, 524575, 525248, 5253319, 5253323, 5253329, 525370, 525375, 502152, 152564, C08F 458, C08F 3604, C08K 304
Patent
active
052684393
ABSTRACT:
An anionic polymerization initiator comprising the reaction product of a an organatin halide and lithium in a suitable solvent. Elastomeric polymers prepared with these initiators have tin containing functional groups on substantially every 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 and the elastomers having reduced hysteresis properties.
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Bethea Tristram W.
Doshak John M.
Hergenrother William L.
Bridgestone/Firestone Inc.
Hall Daniel N.
Teskin Fred
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