Compositions – Electrolytes for electrical devices
Patent
1994-07-01
1995-10-17
Medley, Margaret
Compositions
Electrolytes for electrical devices
525316, 525901, C10M14312
Patent
active
054587913
ABSTRACT:
The present invention includes star polymers which can be used as viscosity index improvers in oil compositions formulated for high performance engines. The star polymers have triblock copolymer arms of hydrogenated polyisoprene and polystyrene wherein the polystyrene is placed near the core of the star polymer to provide excellent low temperature performance and finishability as a polymer crumb.
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Rhodes Robert B.
Stevens Craig A.
Medley Margaret
Shell Oil Company
Tackett Keith M.
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