Patents Assigned to Sasol Wax GmbH
  • Patent number: 11806699
    Abstract: The present invention relates to a hydrocarbon synthesis catalyst comprising in its unreduced form a) Fe as catalytically active metal, b) an alkali metal and/or alkaline-earth metal in an alkali metal- and/or alkaline-earth metal-containing promoter, the alkali metal, c) and a further promoter comprising, or consisting of, one or more element(s) selected from the group of boron, germanium, nitrogen, phosphorus, arsenic, antimony, sulphur, selenium and tellurium, to a process for the synthesis of a hydrocarbon synthesis catalyst, to a hydrocarbon synthesis process which is operated in the present of such a catalyst and to the use of such a catalyst in a hydrocarbon synthesis process.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: November 7, 2023
    Assignees: SASOL TECHNOLOGY (PTY.) LIMITED, SASOL WAX GMBH
    Inventors: Reinier Crous, Tracy Carolyn Bromfield, Sharon Booyens
  • Patent number: 10808125
    Abstract: The present invention relates to a bitumen composition comprising a petroleum slack wax and a Fischer-Tropsch wax, the use of the waxes in bitumen compositions, the use of the bitumen composition in asphalt compositions, asphalt compositions comprising the bitumen composition and a method for producing asphalt pavements and constructions thereof. The bitumen has proved to have better processing characteristics.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 20, 2020
    Assignee: Sasol Wax GmbH
    Inventors: Thorsten Butz, Carsten Oelkers, Stefan Strydom, William Honiball
  • Patent number: 10689296
    Abstract: The invention relates to a process for manufacturing a gypsum slurry by bringing together and mixing gypsum, water, wax powder and optionally other components, applying the gypsum slurry in a process for manufacturing a gypsum product and a gypsum product such as a plasterboard or wallboard obtained by the process and the use of the wax powder for the manufacturing of a moisture resistant gypsum product.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 23, 2020
    Assignee: Sasol Wax GmbH
    Inventors: Gernot Meyer, Thorsten Frick, Thomas Haas
  • Patent number: 10689588
    Abstract: A process for obtaining a wax fraction from a feed wax, the process comprising: (a) providing a molten feed wax in a container; (b) solidifying the feed wax by cooling; (c) increasing the temperature of the feed wax to a temperature at which a first fraction of the feed wax melts, said first fraction having a congealing point which is lower than the congealing point of the feed wax; (d) recovering the first fraction of the feed wax; (e) increasing the temperature of the remaining feed wax to a temperature at which a further fraction of the feed wax melts; and (f) recovering the further fraction of the feed wax. The feed wax comprises at least 75 wt.-% of linear alkanes and each recovered fraction comprises at least 19 wt.-% of the feed wax.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 23, 2020
    Assignee: Sasol Wax GmbH
    Inventors: Gernot Meyer, Ingo Behrmann
  • Patent number: 10676870
    Abstract: The present invention relates to water based wax dispersion comprising a hydrocarbon wax and a dialkylether for the coating of paper products, the use thereof, the method of coating paper products therewith and the coated printed paper product.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: June 9, 2020
    Assignee: Sasol Wax GmbH
    Inventors: Andreas Schwalbe, Ulrich Schneider, Thomas Haas, Oliver Herzog
  • Patent number: 10472519
    Abstract: The invention relates to a hydrocarbon wax composition with superior properties as ozone- and aging-protecting additive in rubber products, the production thereof and the use thereof as ozone- and aging-protecting additive. The hydrocarbon wax composition is characterized by its distribution of hydrocarbon molecules by number of carbon atoms per hydrocarbon molecule and its distribution of branched and linear hydrocarbons.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: November 12, 2019
    Assignee: Sasol Wax GmbH
    Inventors: Arnd-Luder Gaulke, Uwe Kurras, Corinna Schwarzendahl
  • Patent number: 9981874
    Abstract: The invention relates to O/W wax dispersions based on water, an emulsifier and a wax phase containing predominantly aliphatic hydrocarbons and polar compounds having chain lengths of at least 18 carbon atoms, and also plaster compositions comprising the O/W wax dispersion, and the use of the O/W wax dispersion.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 29, 2018
    Assignee: Sasol Wax GmbH
    Inventors: Gernot Meyer, Thomas Haas
  • Patent number: 9347007
    Abstract: Microcrystalline paraffin having a consistency in a rage of paste-like to solid, prepared by catalytic hydroisomerization of FT paraffins having a carbon chain length distribution in a range of 20 to 105 at temperatures above 200° C., and being free of aromatic compounds, heterocyclic compounds, and naphthenes.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: May 24, 2016
    Assignee: SASOL WAX GMBH
    Inventors: Helmuth Schulze-Trautmann, Michael Matthäi, Thorsten Butz, Günter Hildebrand
  • Patent number: 9249365
    Abstract: The subject matter of the present invention is a process for grinding waxes, in particular paraffin waxes using a polyol as a grinding aid in a jet mill, in particular a fluidized bed counter-jet mill, wax powder thus produced containing the grinding aid and the use of the polyols as a grinding aid for waxes.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: February 2, 2016
    Assignee: Sasol Wax GmbH
    Inventor: Ulrich Schneider
  • Patent number: 9102834
    Abstract: A method for producing bulk good of agglomerates made of rubber particles and wax. A composition of the agglomerate and the use of the bulk good to produce asphalt or bitumen masses are created in that rubber is activated by swelling and using a swelling agent and a melt made of viscosity-reducing wax and of optional polyoctenamer is added, the activated rubber particles are agglomerated by means of the viscosity-reducing wax and optional adhesion-improving substances. The resulting larger volume leads to a viscosity reduction and the softening leads to a more intimate and more homogeneous wetting with the wax and, in the mixed good to be produced, a viscosity reduction remaining stable in the mixed good for <180 min and an increased stability of the cross-linking of the rubber molecules among each other after the agglomerates have been incorporated are achieved.
    Type: Grant
    Filed: July 10, 2011
    Date of Patent: August 11, 2015
    Assignees: SASOL WAX GmBH, STORIMPEX IM-UND EXPORT GmBH
    Inventors: Thorsten Butz, Matthias Nölting, Gunnar Winkelmann
  • Patent number: 8974880
    Abstract: The invention relates wax blends containing long-chain hydrocarbons and alcohols, to printing ink compositions and thermal transfer ribbons containing the wax blends, and to the use of said wax blends as additives in printing inks.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: March 10, 2015
    Assignee: Sasol Wax GmbH
    Inventors: Ulrich Schneider, Uwe Kurras, Thorsten Frick
  • Patent number: 8741056
    Abstract: The invention relates to O/W wax dispersions based on water, an emulsifier and a wax phase containing predominantly aliphatic hydrocarbons and polar compounds having chain lengths of at least 18 carbon atoms, and also plaster compositions comprising the O/W wax dispersion, and the use of the O/W wax dispersion.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 3, 2014
    Assignee: Sasol Wax GmbH
    Inventors: Gernot Meyer, Thomas Haas
  • Patent number: 8652633
    Abstract: The invention provides nanoparticulate wax dispersions comprising wax solids having a solidification point of greater than 40 to 150° C., a process for preparing them, and a method of hydrophobicizing materials produced using fibers, chips or strands comprising or consisting of lignocelluloses and/or celluloses, by contacting them with the wax dispersions.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: February 18, 2014
    Assignee: Sasol Wax GmbH
    Inventors: Thomas Buchholz, Hans Jörg Scheidat
  • Publication number: 20130209709
    Abstract: The invention relates wax blends containing long-chain hydrocarbons and alcohols, to printing ink compositions and thermal transfer ribbons containing the wax blends, and to the use of said wax blends as additives in printing inks.
    Type: Application
    Filed: September 2, 2011
    Publication date: August 15, 2013
    Applicant: SASOL WAX GMBH
    Inventors: Ulrich Schneider, Uwe Kurras, Thorsten Frick
  • Publication number: 20130116364
    Abstract: A method for producing bulk good of agglomerates made of rubber particles and wax. A composition of the agglomerate and the use of the bulk good to produce asphalt or bitumen masses are created in that rubber is activated by swelling and using a swelling agent and a melt made of viscosity-reducing wax and of optional polyoctenamer is added, the activated rubber particles are agglomerated by means of the viscosity-reducing wax and optional adhesion-improving substances. The resulting larger volume leads to a viscosity reduction and the softening leads to a more intimate and more homogeneous wetting with the wax and, in the mixed good to be produced, a viscosity reduction remaining stable in the mixed good for <180 min and an increased stability of the cross-linking of the rubber molecules among each other after the agglomerates have been incorporated are achieved.
    Type: Application
    Filed: July 10, 2011
    Publication date: May 9, 2013
    Applicants: STORIMPEX IM- UND EXPORT GMBH, SASOL WAX GMBH
    Inventors: Thorsten Butz, Matthias Nölting, Gunnar Winkelmann
  • Publication number: 20120029096
    Abstract: The present invention relates to a hydrocarbon synthesis catalyst comprising in its unreduced form a) Fe as catalytically active metal, b) an alkali metal and/or alkaline-earth metal in an alkali metal- and/or alkaline-earth metal-containing promoter, the alkali metal, c) and a further promoter comprising, or consisting of, one or more element(s) selected from the group of boron, germanium, nitrogen, phosphorus, arsenic, antimony, sulphur, selenium and tellurium, to a process for the synthesis of a hydrocarbon synthesis catalyst, to a hydrocarbon synthesis process which is operated in the present of such a catalyst and to the use of such a catalyst in a hydrocarbon synthesis process.
    Type: Application
    Filed: December 4, 2009
    Publication date: February 2, 2012
    Applicants: SASOL WAX GMBH, SASOL TECHNOLOGY (PTY.) LIMITED
    Inventors: Reinier Crous, Tracy Carolyn Bromfield, Sharon Booyens
  • Publication number: 20110042021
    Abstract: The invention relates to a wood composition containing olefin and raw wood materials, the use of said olefins for rendering raw wood materials water repellent, and a method for producing wood materials therefrom. The raw wood materials contain or are made of lignocellulose and are provided in the form of fibers, strands, or chips.
    Type: Application
    Filed: February 25, 2009
    Publication date: February 24, 2011
    Applicant: SASOL WAX GMBH
    Inventors: Thomas Buchholz, Gernot Meyer, Marc Prüsmann
  • Patent number: 7875166
    Abstract: The invention relates to a novel and completely synthetic microcrystalline paraffin, said paraffin being obtained in a simple manner and with a high yield by the catalytic hydromerisation of paraffin FT comprising 20 to 105 carbon atoms. Said paraffins can be pasty to solid at room temperature and have a higher percentage of iso-paraffins than n-paraffins. Since they do not contain aromatic compounds they are particularly suitable for use in the pharmaceutical, cosmetic and food industries.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: January 25, 2011
    Assignees: Sasol Wax International AG, Sasol Wax GmbH
    Inventors: Michael Matthäi, Günter Hildebrand, Helmuth Schulze-Trautmann, Thorsten Butz