公开(公告)号：US20240209276A1

公开(公告)日：2024-06-27

申请号：US18287748

申请日：2022-04-19

Applicant: LANXESS Corporation

Inventor： Huiyuan Chen ,  Cyril Migdal ,  Kevin DiNicola ,  Robert G. Rowland

IPC: C10M133/12 ,  C10N30/10

CPC classification number: C10M133/12 ,  C10M2215/065 ,  C10N2030/10

Abstract: Liquid alkylated N-phenyl-a-naphthylamine (PANA) compositions are disclosed containing a high concentration of mono-alkylated PANA and low levels of di-alkylated and less than 1% by weight of unsubstituted PANA. The novel compositions may be prepared by controlled alkylation of PANA with propylene oligomers followed by subsequent alkylation with at least one second olefin.

公开(公告)号：US12173248B2

公开(公告)日：2024-12-24

申请号：US18287748

申请日：2022-04-19

Applicant: LANXESS Corporation

Inventor： Huiyuan Chen ,  Cyril Migdal ,  Kevin DiNicola ,  Robert G. Rowland

IPC: C10M133/12 ,  C10N30/10

Abstract: Liquid alkylated N-phenyl-α-naphthylamine (PANA) compositions are disclosed containing a high concentration of mono-alkylated PANA and low levels of di-alkylated and less than 1% by weight of unsubstituted PANA. The novel compositions may be prepared by controlled alkylation of PANA with propylene oligomers followed by subsequent alkylation with at least one second olefin.