公开(公告)号：RO70133A

公开(公告)日：1981-06-30

申请号：RO7573973

申请日：1973-08-07

Applicant: STANDARD OIL CO

Inventor： CULBERSTON GEORGE S ,  CHIPMAN GARY R ,  KRALL ROBERT E

IPC: C08F8/32 ,  C08F210/18 ,  C08L23/00 ,  C08F255/06 ,  C08L61/00 ,  C08L61/20 ,  C08L101/00 ,  C10M149/22 ,  C10M159/12 ,  C10M159/16 ,  C10N20/04 ,  C10N30/02 ,  C10N30/04 ,  C10N40/25 ,  C10M1/00 ,  C10M1/08

Abstract: Bi-functional lubricant additives exhibiting dispersant and V.I. improving properties are obtained by the Mannich Condensation of an oxidized long-chain high molecular weight amorphous copolymer of essentially ethylene and propylene having a number average molecular weight of at least about 10,000 and at least 140 pendant methyl groups per 1,000 chain carbon atoms, with a formaldehyde yielding reactant and a primary or secondary amine or polyamine, said reactants being employed in the molar ratio of from about 1:2:2 to about 1:20:20, respectively.