A dispersant composition comprising the product of an amine, an alcohol, or an amino alcohol, with a hydrocarbyl-substituted succinic anhydride component exhibits improved viscosity stability and reduced chlorine content, when the hydrocarbyl-substituted succinic anhydride component comprises: (a) 10 to 95 weight percent of a component prepared by reacting a polyisobutylene with maleic anhydride in the presence of chlorine; and (b) 5 to 90 weight percent of a component prepared by reacting a polyisobutylene with maleic anhydride in the substantial absence of chlorine.
申请公布号
EP1651743(A1)
申请公布日期
2006.05.03
申请号
EP20040779198
申请日期
2004.07.26
申请人
THE LUBRIZOL CORPORATION
发明人
EVELAND, RENEE, A.;KOCH, FREDERICK, W.;WILBY, ROBERT, IAN;CARRICK, VIRGINIA, A.;ABRAHAM, WILLIAM, D.;LAMB, GORDON D.