公开(公告)号：US20180134975A1

公开(公告)日：2018-05-17

申请号：US15788917

申请日：2017-10-20

Applicant: ExxonMobil Research and Engineering Company

Inventor： Eugine CHOI ,  Matthew W. BOLAND ,  Zhisheng GAO ,  Luca SALVI ,  Shamel MERCHANT ,  Bruce W. CRAWLEY

IPC: C10L1/06 ,  C10L1/10 ,  C10L1/16

Abstract: Naphtha boiling range compositions are provided that can have improved combustion properties (relative to the research octane number of the composition) in spark ignition engines and/or compression ignition engines. The improved combustion properties can be achieved by controlling the total combined amounts of n-paraffins and isoparaffins that include a straight-chain propyl group (R1—CH2—CH2—CH2—R2). For such a straight-chain propyl group, R2 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin. R1 can correspond to a hydrogen atom, making the straight-chain propyl group a terminal n-propyl group; or R1 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin.

公开(公告)号：US20190093040A1

公开(公告)日：2019-03-28

申请号：US16123137

申请日：2018-09-06

Applicant: ExxonMobil Research and Engineering Company

Inventor： Douglas E. DECKMAN ,  Smruti A. DANCE ,  Luca SALVI

IPC: C10M133/12 ,  C10M129/74

Abstract: A method for improving viscosity control, while maintaining or improving deposit control, of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and at least one polymeric aminic antioxidant, as a minor component. The at least one polymeric aminic antioxidant is the polymerization reaction product of one or more unsubstituted or hydrocarbyl-substituted diphenyl amines, one or more unsubstituted or hydrocarbyl-substituted phenyl naphthyl amines, or both one or more of unsubstituted or hydrocarbyl-substituted diphenylamine with one or more unsubstituted or hydrocarbyl-substituted phenyl naphthylamine. The lubricating oil base stock is present in an amount from 1 to 85 weight percent and the at least one polymeric aminic antioxidant is present in an amount from 0.1 to 5 weight percent.

公开(公告)号：US20180134978A1

公开(公告)日：2018-05-17

申请号：US15788954

申请日：2017-10-20

Applicant: ExxonMobil Research and Engineering Company

Inventor： Eugine CHOI ,  Matthew W. BOLAND ,  Zhisheng GAO ,  Luca SALVI ,  Shamel MERCHANT ,  Bruce W. CRAWLEY

IPC: C10L10/10 ,  C10L1/06

Abstract: Naphtha boiling range compositions are provided that can have improved combustion properties (relative to the research octane number of the composition) in spark ignition engines and/or compression ignition engines. The improved combustion properties can be achieved by controlling the total combined amounts of n-paraffins and isoparaffins that include a straight-chain propyl group (R1—CH2—CH2—CH2—R2). For such a straight-chain propyl group, R2 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin. R1 can correspond to a hydrogen atom, making the straight-chain propyl group a terminal n-propyl group; or R1 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin.

公开(公告)号：US20190127655A1

公开(公告)日：2019-05-02

申请号：US16151462

申请日：2018-10-04

Applicant: ExxonMobil Research and Engineering Company

Inventor： Smruti A. DANCE ,  Steven KENNEDY ,  Jordan C. Smith ,  Luca SALVI

IPC: C10M129/54 ,  C10M135/10 ,  C10M133/56 ,  C10M101/02 ,  C10M107/02

Abstract: A method for improving wear control, while maintaining or improving deposit control and cleanliness, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and specific combinations of low soap detergents, dispersants, and/or mixtures thereof, as a minor component. The low soap detergents include alkaline earth metal salicylates, alkaline earth metal sulfonates, or mixtures thereof, all having the same or different total base number (TBN). The total amount of soap delivered by the low soap detergent is less than 0.60 weight percent of the lubricating oil. The dispersants include borated and/or non-borated polyisobutylene succinimide (PIMA) having a basic nitrogen content of 1% or greater. The lubricating oils are useful in internal combustion engines.

公开(公告)号：US20190062668A1

公开(公告)日：2019-02-28

申请号：US16108371

申请日：2018-08-22

Applicant: ExxonMobil Research and Engineering Company

Inventor： Zhisheng GAO ,  Luca SALVI ,  Eugine CHOI ,  Matthew W. BOLAND

IPC: C10M169/04 ,  C10M137/14 ,  C10M135/06 ,  C10M145/36 ,  C10M133/12 ,  C10M161/00

Abstract: An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a monoester obtained by a) reacting one Guerbet alcohol of 8 to 20 carbon atoms with a Guerbet acid, a linear or branched acid of 6 to 20 carbon atoms or b) reacting one linear or branched alcohol with at least 6 to 20 carbon atoms with a Guerbet acid of 8 to 20 carbon atoms. The lubricating oil base stock is present in an amount from 30 to 99.8 wt. % of the oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil.

公开(公告)号：US20190062667A1

公开(公告)日：2019-02-28

申请号：US16108352

申请日：2018-08-22

Applicant: ExxonMobil Research and Engineering Company

Inventor： Zhisheng GAO ,  Luca SALVI ,  Eugine CHOI ,  Matthew W. BOLAND

IPC: C10M169/04 ,  C10M137/14 ,  C10M135/06 ,  C10M145/36 ,  C10M133/12 ,  C10M161/00

Abstract: An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a branched polyol ester. The lubricating oil base stock is present in an amount from about 30 to about 99.8 mass percent, based on the total mass of the ashless lubricating oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil. The ashless lubricating oil is useful as a passenger vehicle engine oil (PVEO).