公开(公告)号：US20250145750A1

公开(公告)日：2025-05-08

申请号：US18932780

申请日：2024-10-31

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Eric P. Jourdain ,  Meha H. Shah ,  Elumalai Jayaraman ,  Bernard D'Cruz ,  Serge Riffard ,  Scott H. Loyd ,  Sunny Jacob ,  Rugved P. Pathare

IPC: C08F236/04 ,  C08F236/20 ,  C08K5/01

Abstract: A method for using a saturated paraffinic process oil may include: curing an ethylene-propylene-diene-monomer (EPDM) composition to form an EPDM article, wherein the EPDM composition comprises EPDM rubber and a saturated paraffinic process oil, wherein the saturated paraffinic process oil comprises: a kinematic viscosity at 100° C. in a range of 14 cSt to 45 cSt; a sulfur content of less than 0.03 wt. %; a saturates content of at least 90 wt. %; a T5 distillation point of at least 480° C.; an aniline point in a range of about 130° C. to about 150° C.; a refractive index at 20° C. in a range of 1.460-1.490; and a sum of terminal/pendant propyl groups and terminal/pendant ethyl groups of at least 1.7 per 100 carbon atoms of the composition

公开(公告)号：US11352579B2

公开(公告)日：2022-06-07

申请号：US16221742

申请日：2018-12-17

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Daniel J. Eichelsdoerfer ,  Richard C. Dougherty ,  Charles L. Baker, Jr. ,  Rugved P. Pathare ,  Bryan E. Hagee

IPC: C10M101/02 ,  C10G47/16 ,  C10G45/64 ,  C10G45/62 ,  C10G73/06 ,  C10G7/06 ,  B01J35/10 ,  B01J29/78 ,  C10G45/08 ,  C10G47/18 ,  C10G45/00 ,  C10G65/12 ,  C10G47/12 ,  C10N20/02 ,  C10N20/00 ,  C10N30/10 ,  C10N40/25

Abstract: Disclosed are Group III base stocks comprising at least 30 wt % naphthenes, a viscosity index from 120 to 145; and a unique ratio of molecules with multi-ring naphthenes to single ring naphthenes (2R+N/1RN). A method for preparing the base stocks is also disclosed. Also disclosed is a lubricating oil having the base stock as a major component, and an additive as a minor component.