申请人:Kupfer Rainer
公开号:US20120088706A1
公开(公告)日:2012-04-12
The invention relates to compositions containing a basic oil or base oil, 10 to 50 percent by weight of ether pyrrolidone carboxylic acids of formula (1) or the salts thereof of formula (1),
wherein R
1
represents C
8
-C
30
-alkyl, C
8
-C
30
-alkenyl, C
6
-C
30
-alyl, C
7
-C
30
-alkylaryl, M represents hydrogen, alkali metal, alkaline earth metal, or ammonium, X represents C
2
-C
6
-alkylene, or a poly(oxyalkylene) group of formula (2),
wherein l is a number ranging from 1 to 50, m, n are numbers ranging from 0 to 50 independently of l and independently of one another, R
2
, R
3
, and R
4
independently represent hydrogen, CH
3
, or CH
2
CH
3
, Y represents C
2
-C
6
-alkylene, said compositions further containing a specific amount of a pH regulator/neutralizer such that a 5 percent by weight emulsion of the composition in deionized water has a pH ranging from 7 to 11.