公开(公告)号：US20210380894A1

公开(公告)日：2021-12-09

申请号：US17282316

申请日：2019-10-03

Applicant: SHELL OIL COMPANY

Inventor： Alastair Graham SMITH ,  Claire GRIFFITHS ,  Mark Clift SOUTHBY ,  Tushar BERA

IPC: C10L1/16 ,  C10L10/08

Abstract: A fuel composition comprising a base fuel and at least one viscosity index (VI) improving additive, wherein the viscosity index (VI) improving additive is a star-shaped polyisoprene-based polymer. The viscosity index improving additive can be used in a fuel composition to provide improved lubricity as well as providing improved power output and/or acceleration characteristics.

公开(公告)号：US20220056359A1

公开(公告)日：2022-02-24

申请号：US17414618

申请日：2020-01-27

Applicant: SHELL OIL COMPANY

Inventor： Alastair Graham SMITH

IPC: C10L1/16

Abstract: Use of a viscosity increasing component in a diesel fuel composition, for the purpose of improving the fuel economy of an engine into which the fuel composition is or is intended to be introduced, or of a vehicle powered by such an engine, wherein the viscosity increasing component is a viscosity index (VI) improving additive, wherein the VI improving additive comprises a linear block copolymer, which contains one or more monomer blocks selected from ethylene, propylene, butylene, butadiene, isoprene and styrene monomers and wherein the VI improving additive is used at a concentration of from 0.001% w/w to 0.05% w/w.

公开(公告)号：US20220002627A1

公开(公告)日：2022-01-06

申请号：US17293721

申请日：2019-11-22

Applicant: SHELL OIL COMPANY

Inventor： Alastair Graham SMITH ,  Claire GRIFFITHS ,  Mark Clift SOUTHBY ,  Tushar BERA

IPC: C10L1/236

Abstract: A fuel composition comprising a base fuel and at least one viscosity index (VI) improving additive, wherein the viscosity index (VI) improving additive is a functionalized dispersant olefin copolymer. The viscosity index (VI) improving additive provides improved power output and/or acceleration characteristics.