公开(公告)号：US4855073A

公开(公告)日：1989-08-08

申请号：US199485

申请日：1988-05-27

申请人： Mitsuhiro Murakami ,  Takahiro Mikami ,  Hiroyuki Nagamatsu ,  Mitsuji Tokuno

发明人： Mitsuhiro Murakami ,  Takahiro Mikami ,  Hiroyuki Nagamatsu ,  Mitsuji Tokuno

IPC分类号： C10M159/12 ,  C07C65/105 ,  C08G8/12 ,  C08G8/18 ,  C08L61/04 ,  C08L61/10 ,  C10M129/54 ,  C10M159/18 ,  C10M159/20 ,  C10M159/22 ,  C10N10/04 ,  C10N30/00 ,  C10N30/04 ,  C10N30/08 ,  C10N40/00 ,  C10N40/25 ,  F02B75/02

CPC分类号： C10M159/22 ,  C07C65/105 ,  C10M129/54 ,  C10M2207/144 ,  C10M2207/146 ,  C10M2207/262 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/104 ,  C10N2240/106 ,  F02B2075/027

摘要： Disclosed are a lubricant composition comprising a major amount of one or more lubricant fluids and at least one polyvalent metal salt of the formaldehyde condensation products of C.sub.12 -C.sub.22 alkyl hydroxy benzoic acid, and a method of preparation of same. Because of the methylenebis structure of the polyvalent metal salts, engine properties such as detergency/dispersancy, thermal stability, hydrolytic stability, oil solubility and especially compatibility with other additives are improved by the use of the composition.