公开(公告)号：SG11202003781UA

公开(公告)日：2020-05-28

申请号：SG11202003781U

申请日：2018-10-31

Applicant: BASF SE

Inventor： FARNG OSCAR ,  SANCHEZ JIMENEZ GRACIELA ,  DERY MARY ELIZABETH ,  ODORISIO PAUL A ,  RAKESTRAW BRIDGETT E ,  SHUM SAI P ,  KHOSHABO DAVID ,  ALESSI MICHAEL ,  VIEIRA REBECCA ,  TAGGI ANDREW

IPC: C10M149/12 ,  C08K5/18

Abstract: wherein R is H, C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkynyl, —C(O)C1-C18 alkyl, —C(O)aryl and R1, R2, R3 and R4 are each independently H or a linear or branched C1-C18 alkyl, C1-C18 alkoxy, C1-C18 alkylamino, C1-C18 dialkylamino, C1-C18 alkylthio, C2-C18 alkenyl, C2-C18 alkynyl or C7-C21 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.