Patents by Inventor Neil L. Simpson

Neil L. Simpson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11578211
    Abstract: The present invention relates to a dispersant having a tertiary or quaternary amine anchoring group and a solubilizing polymer selected from C8-50 fatty acid; a C8-50 ak(en)yl substituted succinic acid, anhydride or partial ester; a dimer or trimer fatty acid; and/or polymers from repeating units of polyesters, polyethers, polyacrylate, polyamides, polyurethanes or mixtures of said repeating units in a random or blocky copolymer. The dispersants are an improvement in that the alkylene connecting group between the tertiary or quaternized amine and the solubilizing polymer lacks abstractable hydrogen atoms at the geminal carbon atom from the nitrogen of the tertiary or quaternized amine over the prior art. The dispersants are useful as dispersants with improved thermal stability and low amounts yellow color after aging at elevated temperatures.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 14, 2023
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Dean Thetford, Neil L. Simpson
  • Publication number: 20210189279
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Applicant: The Lubrizol Corporation
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson
  • Patent number: 10988701
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 27, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson
  • Publication number: 20200002539
    Abstract: The present invention relates to a dispersant having a tertiary or quaternary amine anchoring group and a solubilizing polymer selected from C8-50 fatty acid; a C8-50 ak(en)yl substituted succinic acid, anhydride or partial ester; a dimer or trimer fatty acid; and/or polymers from repeating units of polyesters, polyethers, polyacrylate, polyamides, polyurethanes or mixtures of said repeating units in a random or blocky copolymer. The dispersants are an improvement in that the alkylene connecting group between the tertiary or quaternized amine and the solubilizing polymer lacks abstractable hydrogen atoms at the geminal carbon atom from the nitrogen of the tertiary or quaternized amine over the prior art. The dispersants are useful as dispersants with improved thermal stability and low amounts yellow color after aging at elevated temperatures.
    Type: Application
    Filed: January 26, 2018
    Publication date: January 2, 2020
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Dean THETFORD, Neil L. SIMPSON
  • Publication number: 20190316057
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson
  • Publication number: 20170198233
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Application
    Filed: April 8, 2014
    Publication date: July 13, 2017
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson
  • Patent number: 8772435
    Abstract: The present invention relates to dispersants for dispersing a particulate solid for millbases, paints and inks. The present invention provides a composition containing a particulate solid, a polar organic medium and a compound or salts thereof for formula T-(A)m(B)n—X—Z-Q(0-p) wherein T is hydrogen or a polymerization terminating group; A is the residue of a hydroxy carboxylic acid or lactone thereof; B is the residue of an amino carboxylic acid; X is a direct bond or a divalent group; Z is an acidic or basic group or a moiety which contains an acidic or basic group; Q is an optional residue of an oxide, urea or a dibasic acid or anhydride thereof; m and n are positive integers; and p represents the number of residual amino and/or imino groups in Z.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: July 8, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Neil L. Simpson, Dean Thetford
  • Patent number: 8167992
    Abstract: A composition comprising a particulate Solid, an organic medium and a compound with an alkyleneoxy compound with an inorganic acidic polar head group (Z), wherein the compound is defined by Formula (1) and salts thereof: U—(Y)x-T-N(G)r(B—Z)q (Formula 1) wherein U is independently R?—N—(C)-T?-O—, or R—O—; R or R? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl, or hydrocarbonyl group (acyl group), or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; Y is C2-4-alkyleneoxy; T or T? is independently C2-4 alkylene; B is an alkylene group, such as, methylene; Z is an inorganic acidic polar head group, such as, a sulphur or phosphorus acidic polar head group; G and G? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl or C1-50-optionally substituted hydrocarbyl or hydrocarbonyl group or the residue of an epoxide, or the residue of an optionally substituted (meth) ac
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 1, 2012
    Assignee: Lubrizol Limited
    Inventors: Dean Thetford, Patrick J. Sunderland, Neil L. Simpson
  • Patent number: 8076409
    Abstract: The present invention provides a dispersant and compositions thereof. The dispersant is a residue of a non-aromatic hydrocarbyl substituted carboxylic acid containing three or more acid groups (A), wherein the dispersant may be represented by the Formula and salts thereof: [U—(Y)x-T-N(R1)c-A]d-Z(Q1)j-Wc, wherein the variables are defined herein.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 13, 2011
    Assignee: Lubrizol Limited
    Inventors: Dean Thetford, Neil L. Simpson
  • Patent number: 7683120
    Abstract: The present invention provides a composition comprising (i) a particulate solid; (ii) an organic medium; and (iii) a salt of a hydrocarbyl-substituted acrylating agent. The invention further provides for the use of the composition in various applications including paints, inks or mill bases.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 23, 2010
    Assignee: Lubrizol Limited
    Inventors: Dean Thetford, Neil L. Simpson
  • Publication number: 20090093569
    Abstract: A composition comprising a particulate Solid, an organic medium and a compound with an alkyleneoxy compound with an inorganic acidic polar head group (Z), wherein the compound is defined by Formula (1) and salts thereof: U—(Y)x-T-N(G)r(B-Z)q (Formula 1) wherein U is independently R?—N—(C)-T?-O—, or R—O—; R or R? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl, or hydrocarbonyl group (acyl group), or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; Y is C2-4-alkyleneoxy; T or T? is independently C2-4 alkylene; B is an alkylene group, such as, methylene; Z is an inorganic acidic polar head group, such as, a sulphur or phosphorus acidic polar head group; G and G? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl or C1-50-optionally substituted hydrocarbyl or hydrocarbonyl group or the residue of an epoxide, or the residue of an optionally substituted (meth) ac
    Type: Application
    Filed: December 14, 2006
    Publication date: April 9, 2009
    Applicant: LUBRIZOL LIMITED
    Inventors: Dean Thetford, Patrick J. Sunderland, Neil L. Simpson, Osamu Morimoto, Fumitake Unezaki
  • Publication number: 20080281039
    Abstract: The present invention provides a dispersant and compositions thereof. The dispersant is a residue of a non-aromatic hydrocarbyl substituted carboxylic acid containing three or more acid groups (A), wherein the dispersant may be represented by the Formula and salts thereof: [U—(Y)x-T-N(R1)c-A]d-Z(Q1)j-Wc, wherein the variables are defined herein.
    Type: Application
    Filed: December 5, 2006
    Publication date: November 13, 2008
    Applicant: LUBRIZOL LIMITED
    Inventors: Dean Thetford, Neil L. Simpson
  • Publication number: 20080207826
    Abstract: The present invention provides a composition comprising (i) a particulate solid; (ii) an organic medium; and (iii) a salt of a hydrocarbyl-substituted acrylating agent. The invention further provides for the use of the composition in various applications including paints, inks or mill bases.
    Type: Application
    Filed: June 13, 2006
    Publication date: August 28, 2008
    Applicant: LUBRIZOL LIMITED
    Inventors: Dean Thetford, Neil L. Simpson
  • Publication number: 20080163790
    Abstract: The present invention relates to dispersants for dispersing a particulate solid for millbases, paints and inks. The present invention provides a composition containing a particulate solid, a polar organic medium and a compound or salts thereof for formula T-(A)m(B)n—X-Z-Q(0-p) wherein T is hydrogen or a polymerisation terminating group; A is the residue of a hydroxy carboxylic acid or lactone thereof; B is the residue of an amino carboxylic acid; X is a direct bond or a divalent group; Z is an acidic or basic group or a moiety which contains an acidic or basic group; Q is an optional residue of an oxide, urea or a dibasic acid or anhydride thereof; m and n are positive integers; and p represents the number of residual amino and/or imino groups in Z.
    Type: Application
    Filed: April 7, 2006
    Publication date: July 10, 2008
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Neil L. Simpson, Dean Thetford