Process for making dispersant viscosity index improvers

Details Process for making dispersant viscosity index improvers Process for making dispersant viscosity index improvers

1994-12-20

1996-01-23

Mulcahy, Peter D.

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...

525299, 525353, C08L 5100

Patent

active

054865638

ABSTRACT:
Star polymers having polymeric arms of a hydrogenated conjugated diene and substantially smaller polymeric arms of an alkyl methacrylate are efficiently reacted with amines after preparation of a concentrate of the polymer in a lubricating oil to form a dispersant viscosity index improver.

REFERENCES:
patent: 4160739 (1979-07-01), Stanbaugh et al.
patent: 4246374 (1981-01-01), Kopchik
patent: 4735736 (1988-04-01), Chung
patent: 5264139 (1993-11-01), Mishra et al.
patent: 5272211 (1993-12-01), Sutherland et al.
patent: 5338802 (1994-08-01), DuBois et al.
patent: 5344887 (1994-09-01), Sutherland et al.
patent: 5356999 (1994-10-01), Kapuscinski et al.

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