公开(公告)号：WO2022240946A1

公开(公告)日：2022-11-17

申请号：PCT/US2022/028709

申请日：2022-05-11

Applicant: EXXONMOBIL CHEMICAL PATENTS INC. ,  CHEVRON ORONITE COMPANY LLC

Inventor： ZHANG, Jingwen ,  JIANG, Peijun ,  CANICH, Jo, Ann M. ,  HAGADORN, John, R. ,  LIN, Yen-Hao ,  MATTLER, Sarah ,  ECKERT, Chase, A. ,  REED, Aaron ,  BARRY, Adrian, G. ,  ZHANG, Sara, Yue ,  SEPEHR, Maryam ,  MORGAN, David, L.

IPC: C10M143/04 ,  C10M2203/1006 ,  C10M2205/02 ,  C10M2205/022 ,  C10N2020/02 ,  C10N2020/04 ,  C10N2020/071 ,  C10N2030/02 ,  C10N2030/68 ,  C10N2040/25

Abstract: The present disclosure also relates to lubrication compositions comprising a long branched ethylene copolymer and methods for making compositions. Compositions of the present disclosure can be a composition including an oil and an ethylene copolymer, the copolymer having one or more of an MWD from about 2.0 to about 6.5; an Mw(LS) from about 30,000 to about 300,000 g/mol; a g'vis of from about 0.5 to about 0.97; an ethylene content of about 40 wt% to less than 80 wt%. The composition has a shear stability index (30 cycles) of from about 1% to about 60%; and a kinematic viscosity at 100°C of from about 3 cSt to about 25 cSt. A method of making a composition includes blending an oil with a copolymer is also disclosed. Additionally, provided are novel long chain branched ethylene propylene copolymers and methods to produce such copolymers.