公开(公告)号：WO2019097304A1

公开(公告)日：2019-05-23

申请号：PCT/IB2018/001618

申请日：2018-10-31

Applicant: BASF SE

Inventor： FARNG, Liehpao, Oscar ,  JIMENEZ, Graciela, Sanchez ,  DERY, Mary ,  ODORISIO, Paul ,  RAKESTRAW, Bridgett ,  SHUM, Sai ,  KHOSHABO, David ,  ALESSI, Michael, L. ,  VIEIRA, Rebecca, Cristine ,  TAGGI, Andrew, Edmund

IPC: C08K5/18 ,  C10M149/12

Abstract: An antioxidant polymer (e.g., oligomer) composition comprising repeat units of lylamine monomers of formula I wherein R is H, C 1 -C 18 alkyl, C 2 -C 18 alkenyl, C 2 -C 18 alkynyl, -C(O)C 1 -C 18 alkyl, -C(O)aryl and R 1 , R 2 , R 3 and R 4 are each independently H or a linear or branched C 1 -C 18 alkyl, C 1 -C 18 alkoxy, C 1 -C 18 alkylamino, C 1 -C 18 dialkylamino, C 1 -C 18 alkylthio, C 2 -C 18 alkenyl, C 2 -C 18 alkynyl or C 7 -C 21 aralkyl and wherein the number average molecular weight (Mn) of the polymer is from about 350 g/mol to about 5000 g/mol are highly effective antioxidants in lubricant compositions. The polymer compositions may be prepared by a process comprising subjecting diarylamine monomers to dehydrocondensation conditions.