Patents by Inventor Justin August Langston

Justin August Langston 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: 9957342
    Abstract: The present invention relates to a process for preparing grafted polyalkyl(meth)acrylates (PAMAs) containing dispersant repeating units in the polymer backbone as well as in the grafted layer, which polymers are characterized by a low sulfur content, the products available by this process and their use as an additive to fuels, especially to middle distillates and blends thereof. The present invention further relates to a composition comprising the grafted polyalkyl(meth)acrylates prepared by the process according to the present invention and the use of said composition as an additive component to fuels, especially to middle distillates and blends thereof, and for improving the cold flow properties of fuel oil and fuel oil compositions, especially to middle distillate fuels and blends thereof.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: May 1, 2018
    Assignee: Evonik Oil Additives GmbH
    Inventors: Justin August Langston, Barbara Voltz, Frank-Olaf Maehling, Michael G Duckworth, Brian Hess, Rhishikesh Gokhale
  • Patent number: 9481849
    Abstract: The present invention describes a polymer useful as viscosity index improver comprising units derived from one or more ethylenically unsaturated ester compounds of formula (I), where R is hydrogen or methyl, R1 means a linear, branched or cyclic alkyl residue with 1-6 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula —COOR?, where R? means hydrogen or a alkyl group with 1-6 carbon atoms, units of one or more ethylenically unsaturated ester compounds of formula (II), where R is hydrogen or methyl, R4 means a 2-alkyl branched alkyl residue with 12-18 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula —COOR?, where R? means hydrogen or an alkyl group with 12-18 carbon atoms, and units of one or more ethylenically unsaturated ester compounds of formula (III), where R is hydrogen or methyl, R7 means a linear alkyl residue with 12-24 carbon atoms, R8 and R9 independently are hydrogen or a group of the formula —COOR?, where R? means hydrogen or an alkyl grou
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: November 1, 2016
    Assignee: Evonik Oil Additives GmbH
    Inventors: Justin August Langston, Jen-Lung Wang, Peter Moore
  • Publication number: 20150274875
    Abstract: The present invention relates to a process for preparing grafted polyalkyl(meth)acrylates (PAMAs) containing dispersant repeating units in the polymer backbone as well as in the grafted layer, which polymers are characterized by a low sulfur content, the products available by this process and their use as an additive to fuels, especially to middle distillates and blends thereof. The present invention further relates to a composition comprising the grafted polyalkyl(meth)acrylates prepared by the process according to the present invention and the use of said composition as an additive component to fuels, especially to middle distillates and blends thereof, and for improving the cold flow properties of fuel oil and fuel oil compositions, especially to middle distillate fuels and blends thereof.
    Type: Application
    Filed: October 8, 2013
    Publication date: October 1, 2015
    Applicant: EVONIK INDUSTRIES AG
    Inventors: Justin August Langston, Barbara Voltz, Frank-Olaf Maehling, Michael G Duckworth, Brian Hess, Rhishikesh Gokhale
  • Publication number: 20150232783
    Abstract: The present invention describes a composition comprising: (A) at least one polyalkyl (meth) acrylate polymer having a number average molecular weight Mn of from 15000 to 75000 g/mol; (B) at least one ethylene vinyl acetate copolymer comprising units being derived from at least one alkyl (meth) acrylate having 1 to 30 carbon atoms in the alkyl residue; (C) a phenolic type anti-oxidant; (D) a mixture stabilizer; and (E) a glycol ether solvent. The composition is useful as cold flow improver and oxidation stabilizer in vegetable oils and animal fats.
    Type: Application
    Filed: September 6, 2013
    Publication date: August 20, 2015
    Applicant: EVONIK OIL ADDITIVES GMBH
    Inventors: Rhishikesh GOKHALE, Ronny SONDJAJA, Lisa BRÜNNER, Frank-Olaf MÄHLING, Justin August LANGSTON, Torsten STÖHR, Jane BENITO, Gwen TEH
  • Publication number: 20130199482
    Abstract: The present invention describes a motor designed for Fuel compatibility comprising a lubricant composition comprises at least one ester group containing polymer having a high polarity.
    Type: Application
    Filed: August 23, 2011
    Publication date: August 8, 2013
    Applicant: Evonik Oil Additives GmbH
    Inventors: Justin August Langston, Michael E. Webb, Peter Moore, Trilby Cressman, Jen-Lung Wang
  • Publication number: 20120302477
    Abstract: The present invention describes a polymer useful as viscosity index improver comprising units derived from one or more ethylenically unsaturated ester compounds of formula (I), where R is hydrogen or methyl, R1 means a linear, branched or cyclic alkyl residue with 1-6 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula —COOR?, where R? means hydrogen or a alkyl group with 1-6 carbon atoms, units of one or more ethylenically unsaturated ester compounds of formula (II), where R is hydrogen or methyl, R4 means a 2-alkyl branched alkyl residue with 12-18 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula —COOR?, where R? means hydrogen or an alkyl group with 12-18 carbon atoms, and units of one or more ethylenically unsaturated ester compounds of formula (III), where R is hydrogen or methyl, R7 means a linear alkyl residue with 12-24 carbon atoms, R8 and R9 independently are hydrogen or a group of the formula —COOR?, where R? means hydrogen or an alkyl grou
    Type: Application
    Filed: February 24, 2011
    Publication date: November 29, 2012
    Applicant: Evonik RohMax Additives GmbH
    Inventors: Justin August Langston, Jen-Lung Wang, Peter Moore