公开(公告)号：EP2300580A1

公开(公告)日：2011-03-30

申请号：EP09769242.0

申请日：2009-06-23

申请人： Shell Internationale Research Maatschappij B.V.

发明人： FRANK, Jane Elizabeth ,  SOUTHBY, Mark Clift

IPC分类号： C10M149/14 ,  C10N30/04

CPC分类号： C10M149/14 ,  C10M133/08 ,  C10M2203/1006 ,  C10M2215/042 ,  C10M2215/28 ,  C10M2217/041 ,  C10M2217/06 ,  C10N2230/04 ,  C10N2240/10

摘要： The present invention provides the use of a lubricating composition comprising a base oil and one or more poly (hydroxycarboxylic acid) amide salt derivatives for the improvement of piston cleanliness, preferably in internal combustion engines, in particular tested according to one or more of TU5 (CEC L- 88 -TO 2) and ASTM D6984. Preferably, one or more of the poly (hydroxycarboxylic acid) amide salt derivatives have a TBN (total base number) value of less than 10 mg.KOH/g,

公开(公告)号：EP2331663A1

公开(公告)日：2011-06-15

申请号：EP09804586.7

申请日：2009-08-07

申请人： Shell Internationale Research Maatschappij B.V.

发明人： FRANK, Jane Elizabeth ,  SOUTHBY, Mark Clift

IPC分类号： C10M161/00

CPC分类号： C10M163/00 ,  C10M165/00 ,  C10M2203/1006 ,  C10M2207/028 ,  C10M2207/262 ,  C10M2215/04 ,  C10M2217/041 ,  C10M2219/044 ,  C10M2219/046 ,  C10N2230/04 ,  C10N2230/52 ,  C10N2240/10

摘要： The present invention provides a lubricating composition comprising: a base oil; one or more poly (hydroxycarboxylic acid) amide salt derivatives having Formula (III) : [Y-CO [O-A-CO]
n -Z-R
+ ]m pX
q- wherein Y is hydrogen or an optionally substituted hydrocarbyl group, A is a divalent optionally substituted hydrocarbyl group, n is from 1 to 100, preferably from 1 to 10, m is from 1 to 4, q is from 1 to 4 and p is an integer such that pq = m, Z is an optionally substituted divalent bridging group which is attached to the carbonyl group through a nitrogen atom, R
+ is an ammonium group and X
q- is an anion; and one or more detergents; wherein the soap concentration as provided by a detergent selected from the group of sulphonate and salicylate detergents is less than 3.75 mmol soap per wt.% of the one or more poly (hydroxycarboxylic acid) amide salt derivatives having Formula (III).