公开(公告)号：US20200318027A1

公开(公告)日：2020-10-08

申请号：US16904658

申请日：2020-06-18

Applicant: The Lubrizol Corporation

Inventor： David M. Hobson ,  Timothy R. Smith ,  David Price

IPC: C10M169/04 ,  C10M161/00 ,  C10M137/10 ,  C10M143/02

Abstract: The invention provides a lubricating oil composition comprising a ethylene/α-olefin copolymer and, optionally, and additive comprising an amine salt of a hydrocarbyl thiophosphoric acid ester. The invention also provides a method of improving air release of a lubricating oil composition by mixing an ethylene/α-olefin copolymer with an oil of lubricating viscosity.

公开(公告)号：US12168757B2

公开(公告)日：2024-12-17

申请号：US17924247

申请日：2021-05-07

Applicant: The Lubrizol Corporation ,  University of Warwick

Inventor： Paul O'Hora ,  Dixit Parmar ,  Timothy R. Smith ,  David M. Haddleton ,  Georgios Patias

IPC: C10M149/00 ,  C08F8/32 ,  C10N20/04 ,  C10N30/04 ,  C10N40/25 ,  C10N70/00

Abstract: The present invention provides, among other things, a process to produce a low molecular weight dispersant polymethacrylate polymer (“LMWDPMA”), and the LMWDPMA itself, along with the use of the LMWDPMA in a lubricating composition, as well as a method for lubricating an internal combustion engine as disclosed herein.

公开(公告)号：US11365367B2

公开(公告)日：2022-06-21

申请号：US16626128

申请日：2018-06-26

Applicant: The Lubrizol Corporation

Inventor： Paul R. Vincent ,  Timothy R. Smith ,  Eugene Pashkovski ,  Reid A. Patterson

IPC: C10M169/04 ,  C10M145/14 ,  C10M135/10 ,  C10M137/16 ,  C10M149/08 ,  C10M157/04 ,  C10M161/00 ,  C10N30/00 ,  C10N20/00 ,  C10N20/02 ,  C10N30/02 ,  C10N30/04 ,  C10N30/06 ,  C10N30/10 ,  C10N40/25

Abstract: The invention provides a lubricating composition comprising a low viscosity base oil and a synergistic mixture of a functionalized ethylene-α-olefin copolymer, a poly(meth)acrylate polymer, and a metal-free anti-wear agent. The invention also provides a method of lubricating an internal combustion engine using such a lubricating composition.

公开(公告)号：US20210147760A1

公开(公告)日：2021-05-20

申请号：US16626128

申请日：2018-06-26

Applicant: The Lubrizol Corporation

Inventor： Paul R. Vincent ,  Timothy R. Smith ,  Eugene Pashkovski ,  Reid A. Patterson

IPC: C10M169/04 ,  C10M145/14 ,  C10M157/04 ,  C10M137/16 ,  C10M135/10 ,  C10M149/08 ,  C10M161/00

Abstract: The invention provides a lubricating composition comprising a low viscosity base oil and a synergistic mixture of a functionalized ethylene-α-olefin copolymer, a poly(meth)acrylate polymer, and a metal-free anti-wear agent. The invention also provides a method of lubricating an internal combustion engine using such a lubricating composition.

公开(公告)号：US20230183595A1

公开(公告)日：2023-06-15

申请号：US17924247

申请日：2021-05-07

Applicant: The Lubrizol Corporation ,  University of Warwick

Inventor： Paul O'Hora ,  Dixit Parmar ,  Timothy R. Smith ,  David M. Haddleton ,  Georgios Patias

IPC: C10M149/00 ,  C08F8/32

CPC classification number: C10M149/00 ,  C08F8/32 ,  C10N2020/04

Abstract: The present invention provides, among other things, a process to produce a low molecular weight dispersant polymethacrylate polymer (“LMWDPMA”), and the LMWDPMA itself, along with the use of the LMWDPMA in a lubricating composition, as well as a method for lubricating an internal combustion engine as disclosed herein.

公开(公告)号：US11359159B2

公开(公告)日：2022-06-14

申请号：US16626033

申请日：2018-06-25

Applicant: The Lubrizol Corporation

Inventor： Reid A. Patterson ,  Timothy R. Smith ,  Paul S. O'Hora ,  Edward P. Sampler ,  Eugene Pashkovski ,  Kieran Trickett

IPC: C10M157/04 ,  C10M145/14 ,  C10M149/02 ,  C10M169/04 ,  C10N20/00 ,  C10N30/04 ,  C10N30/06 ,  C10N30/10 ,  C10N30/18 ,  C10N40/04 ,  C10N40/08 ,  C10N40/10 ,  C10N40/25

Abstract: The invention provides a lubricating composition comprising an oil of lubricating viscosity and synergistic mixture of a functionalized ethylene-α-olefin copolymer, a poly(meth)acrylate block polymer having a substantially oil soluble block and a substantially oil insoluble block. The invention also provides a method of lubricating a mechanical device using such a lubricating composition.

公开(公告)号：US09670343B2

公开(公告)日：2017-06-06

申请号：US14650375

申请日：2013-12-04

Applicant: The Lubrizol Corporation

Inventor： Antonio Mastrangelo ,  Timothy R. Smith ,  Christopher J. Kolp ,  John R. Johnson

IPC: C08L23/08 ,  C10L1/196 ,  C10L10/16

CPC classification number: C08L23/0869 ,  C10L1/1963 ,  C10L10/16

Abstract: The present invention relates to materials useful for lowering the pour point of wax-containing mixtures of liquid hydrocarbons, as well as compositions of and methods for preparing the same. More particularly, this invention relates to the use in liquid hydrocarbons of OLAC compositions containing units derived from (i) hydrocarbyl(meth)acrylic acid derivatives and (ii) ethylenically unsaturated aliphatic Nα-olefin monomers having up to 50 carbon atoms. The OLAC compositions are useful for modifying the fluidity and flow characteristics of liquid hydrocarbons, and more particularly, for improving the pipeline pumpability of liquid hydrocarbons.