Patents Assigned to Grace GmbH & Co. KG.
  • Patent number: 9403994
    Abstract: The present invention relates to anti-corrosive particles based on inorganic oxide products such as silica or alumina modified with polyvalent metal cations optionally comprising anions of weak acids which may be inorganic or organic in nature and their conjugate species. In particular, the present invention is concerned with anti-corrosive pigment particles comprising inorganic oxides or mixtures of inorganic oxides displaying mesoporosity and/or macroporosity such that the average pore size, averaged over the mixture of inorganic oxides where more than one oxide is involved is greater than 2 nm and the average pore volume is greater than 0.2 ml/g. The present invention is also related to methods of making such particles and to anti-corrosive compositions made with them. The present invention further relates to articles to which the anti-corrosive compositions have been applied.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: August 2, 2016
    Assignee: Grace GmbH & Co. KG
    Inventor: Timothy E. Fletcher
  • Patent number: 8926748
    Abstract: A matting agent useful for the preparation of matted coatings comprising, inorganic oxide particulates; and wax coated on the inorganic oxide particulates, wherein the wax possesses a crystallinity of about 50% or more and said wax is present in an amount ranging from 15 wt % to 30 wt % based on a total weight of said matting agent.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 6, 2015
    Assignee: Grace GmbH & Co. KG
    Inventors: Hans-Rudolf Lehnert, Markus Kretzschmar
  • Patent number: 8876922
    Abstract: A process, adsorbent and apparatus for treating biofuel is disclosed.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 4, 2014
    Assignee: Grace GmbH & Co. KG
    Inventors: Massoud Jalalpoor, Vasilios Zafirakis
  • Patent number: 8507703
    Abstract: A purification system suitable for use in fatty material processing is disclosed. A method of using a purification system to process fatty materials, such as oils, edible oils, fats, and similar materials, is also disclosed.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: August 13, 2013
    Assignee: Grace GmbH & Co. KG.
    Inventor: Massoud Jalalpoor
  • Publication number: 20130196848
    Abstract: Porous inorganic oxide particles, such as porous silica particles, and compositions containing porous inorganic oxide particles are disclosed. Methods of making porous inorganic oxide particles and methods of using porous inorganic oxide particles are also disclosed.
    Type: Application
    Filed: May 19, 2011
    Publication date: August 1, 2013
    Applicant: GRACE GmbH & Co. KG
    Inventors: Markus Kretzschmar, Horst Herrig
  • Publication number: 20110233473
    Abstract: The present invention relates to anti-corrosive particles based on inorganic oxide products such as silica or alumina modified with polyvalent metal cations optionally comprising anions of weak acids which may be inorganic or organic in nature and their conjugate species. In particular, the present invention is concerned with anti-corrosive pigment particles comprising inorganic oxides or mixtures of inorganic oxides displaying mesoporosity and/or macroporosity such that the average pore size, averaged over the mixture of inorganic oxides where more than one oxide is involved is greater than 2 nm and the average pore volume is greater than 0.2 ml/g. The present invention is also related to methods of making such particles and to anti-corrosive compositions made with them. The present invention further relates to articles to which the anti-corrosive compositions have been applied.
    Type: Application
    Filed: December 8, 2009
    Publication date: September 29, 2011
    Applicant: GRACE GMBH & CO. KG
    Inventor: Timothy E. Fletcher
  • Publication number: 20100112132
    Abstract: A composition useful for the treatment of beverages comprising xerogel particles having a pore volume of from about 0.2 to about 2.0 m2/g, a median particle size of from about 5 to about 40 microns, wherein the composition comprises less than about 30% by weight of fines.
    Type: Application
    Filed: July 27, 2007
    Publication date: May 6, 2010
    Applicant: GRACE GMBH & CO. KG
    Inventors: Georg Luers, Massoud Jalalpoor, Dominik Sedlmayer, Andreas Seewald
  • Patent number: 7563739
    Abstract: The invention relates to a desiccant based on clay-bound zeolite which is characterized in that it comprises hygroscopic salt and optionally further conventional additives. Preferably, it is present in the form of granules, the hygroscopic salt being arranged in the pores of the granular particles. Furthermore the invention relates to a process for the preparation of the desiccant as well as its use, in particular in insulating glass windows and spacers for insulating glass windows.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: July 21, 2009
    Assignee: Grace GmbH & Co. KG.
    Inventors: Fritz Kilthau, Thomas E. W. Niessen, Heide Wetzel
  • Patent number: 7037475
    Abstract: The invention pertains to precipitated silica particles having edged surfaces and a length: width: depth ratio of 1:1:1 to 3:3–1:1 with the length being 0.25 to 15 mm, an absorbing capacity PV water (wt. % >;125, a pore volume PV Hg (ml/g) 0.8–4, a pore volume PV N2 (ml/g) 0.2–1.5, a bulk density BD (g/l) 200–500, and preferably a pH<8, for use as a cat liter.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: May 2, 2006
    Assignee: Grace GmbH & Co. KG
    Inventors: Willem Hendrik Dokter, Willem Taede Hulshof, Nicolaas H. M. Leliveld, Jürgen Koltzer
  • Patent number: 6855427
    Abstract: The invention pertains to an amorphous silica particle comprising 0.1 to 105 ppm boron atoms, and optionally 0.05 to 15 wt. % aluminum atoms wherein the boron and aluminum atoms are covalently bonded to the oxygen atoms of the silica network. The amorphous silica particles are used as a reinforcing filler for rubber articles, particularly for tires, more particularly for tire treads.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: February 15, 2005
    Assignee: Grace GmbH & Co. KG.
    Inventors: Paulus Johannes Kunkeler, Willem Hendrik Dokter
  • Patent number: 6770128
    Abstract: A matting agent composition comprises silica and wax wherein the composition has a median particle size in the range of about 2-12 microns, a wax content in the range of about 15-30 wt. % and the silica has a pore volume in the range of about 0.8 to 1.4 cc/g. The matting agent is particularly suitable for radiation curable coatings. The matting agent has been shown to be particularly efficient in such coatings, as well as shows consistent gloss over varying coat weights.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: August 3, 2004
    Assignee: Grace GmbH & Co. KG
    Inventors: Georg Lueers, David Joseph Kent, Volker Petry, Ute Pospesch
  • Patent number: 6680271
    Abstract: Zeolite granulates having improved abrasion resistance, obtained by spraying the zeolite granulates with an aqueous silica sol solution and then optionally drying and calcining them.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: January 20, 2004
    Assignee: Grace GmbH & Co. KG
    Inventors: Frank Heindl, Eckehart Roland, Elke Kossel, Oliver Feuer
  • Patent number: 6458187
    Abstract: A shaped zeolite-containing body, e.g., zeolite-containing monoliths, having high compressive strength is prepared from a particular class of siloxane-based binders in combination with zeolite, plasticizing agent, and methylcellulose. It has been discovered that when using the particular class of siloxane binder with the aforementioned components, the body formed therefrom can be processed and calcined at temperatures below 300° C., thereby reducing costs typically seen with other processes for preparing shaped materials containing zeolite. The shaped bodies of this invention have been shown to have compressive strengths of at least 20 N/mm2 or more.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: October 1, 2002
    Assignee: Grace GmbH & Co. KG
    Inventors: Hans-Gerhard Fritz, Christian Trefzger, Hans Hermann Höfer