C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
253/115, 400/203
C08F 293/00 (2006.01) C08F 8/04 (2006.01) C10M 145/02 (2006.01) C10M 145/14 (2006.01)
Patent
CA 2031452
Novel, selectively hydrogenated block copolymers, which copolymers comprise at least one block of polymerized alkyl methacrylate and one block of polymerized conjugated alkadiene, provide improved dispersant properties and viscosity index improvement to hydrocarbon lubricating oils.
Dubois Don A.
Willis Carl L.
Shell Canada Limited
Smart & Biggar
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