Patents Assigned to Grace GmbH & Co. KG.
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Patent number: 9403994Abstract: 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: GrantFiled: December 8, 2009Date of Patent: August 2, 2016Assignee: Grace GmbH & Co. KGInventor: Timothy E. Fletcher
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Patent number: 8926748Abstract: 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: GrantFiled: December 5, 2007Date of Patent: January 6, 2015Assignee: Grace GmbH & Co. KGInventors: Hans-Rudolf Lehnert, Markus Kretzschmar
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Patent number: 8876922Abstract: A process, adsorbent and apparatus for treating biofuel is disclosed.Type: GrantFiled: December 18, 2008Date of Patent: November 4, 2014Assignee: Grace GmbH & Co. KGInventors: Massoud Jalalpoor, Vasilios Zafirakis
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Patent number: 8507703Abstract: 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: GrantFiled: November 27, 2008Date of Patent: August 13, 2013Assignee: Grace GmbH & Co. KG.Inventor: Massoud Jalalpoor
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Publication number: 20130196848Abstract: 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: ApplicationFiled: May 19, 2011Publication date: August 1, 2013Applicant: GRACE GmbH & Co. KGInventors: Markus Kretzschmar, Horst Herrig
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Publication number: 20110233473Abstract: 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: ApplicationFiled: December 8, 2009Publication date: September 29, 2011Applicant: GRACE GMBH & CO. KGInventor: Timothy E. Fletcher
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Publication number: 20100112132Abstract: 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: ApplicationFiled: July 27, 2007Publication date: May 6, 2010Applicant: GRACE GMBH & CO. KGInventors: Georg Luers, Massoud Jalalpoor, Dominik Sedlmayer, Andreas Seewald
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Patent number: 7563739Abstract: 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: GrantFiled: August 20, 2002Date of Patent: July 21, 2009Assignee: Grace GmbH & Co. KG.Inventors: Fritz Kilthau, Thomas E. W. Niessen, Heide Wetzel
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Patent number: 7037475Abstract: 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: GrantFiled: December 14, 2001Date of Patent: May 2, 2006Assignee: Grace GmbH & Co. KGInventors: Willem Hendrik Dokter, Willem Taede Hulshof, Nicolaas H. M. Leliveld, Jürgen Koltzer
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Patent number: 6855427Abstract: 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: GrantFiled: February 27, 2001Date of Patent: February 15, 2005Assignee: Grace GmbH & Co. KG.Inventors: Paulus Johannes Kunkeler, Willem Hendrik Dokter
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Patent number: 6770128Abstract: 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: GrantFiled: April 11, 2000Date of Patent: August 3, 2004Assignee: Grace GmbH & Co. KGInventors: Georg Lueers, David Joseph Kent, Volker Petry, Ute Pospesch
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Patent number: 6680271Abstract: 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: GrantFiled: June 20, 2000Date of Patent: January 20, 2004Assignee: Grace GmbH & Co. KGInventors: Frank Heindl, Eckehart Roland, Elke Kossel, Oliver Feuer
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Patent number: 6458187Abstract: 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: GrantFiled: November 6, 2000Date of Patent: October 1, 2002Assignee: Grace GmbH & Co. KGInventors: Hans-Gerhard Fritz, Christian Trefzger, Hans Hermann Höfer