Patents by Inventor Volker Thewes
Volker Thewes 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).
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Publication number: 20140005298Abstract: The invention is a composition for an aqueous, intumescent fire protection coating, consisting of at least one silicone resin emulsion and an agent forming foam in case of fire. Furthermore, the invention concerns an intumescent fire protection coating made with such composition, as well as the application and a manufacturing process for this composition.Type: ApplicationFiled: March 17, 2011Publication date: January 2, 2014Applicant: Rudolf Hensel GmbHInventor: Volker Thewes
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Patent number: 7622517Abstract: The invention relates to a phosphorus-containing flame retardant formulation for cellulose-containing moldings, comprising from 0.1 to 99.9% by weight of a resin of an organic nitrogen compound and from 0.1 to 99.9% by weight of a phosphorus-containing flame retardant.Type: GrantFiled: April 18, 2008Date of Patent: November 24, 2009Assignee: Clariant Produkte (Deutschland) GmbHInventors: Harald Bauer, Werner Krause, Martin Sicken, Volker Thewes
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Publication number: 20090005471Abstract: The invention relates to a phosphorus-containing flame retardant formulation for cellulose-containing moldings, comprising from 0.1 to 99.9% by weight of a resin of an organic nitrogen compound and from 0.1 to 99.9% by weight of a phosphorus-containing flame retardant.Type: ApplicationFiled: April 18, 2008Publication date: January 1, 2009Inventors: Harald Bauer, Werner Krause, Martin Sicken, Volker Thewes
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Patent number: 7256169Abstract: The invention relates to a pulverulent laundry and cleaning detergents ingredient, to a process for its preparation and to its use.Type: GrantFiled: January 30, 2001Date of Patent: August 14, 2007Assignee: Clariant Produkte (Deutschland) GmbHInventors: Günther Schimmel, Harald Bauer, Josef Holz, Volker Thewes, Richard Mertens, Peter Hardt, Matthias Berghahn, Thomas Müller
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Patent number: 7144527Abstract: The invention relates to a flame retardant combination comprising, as component A, a phosphinate of the formula (I) and/or a diphosphinate of the formula (II) and/or polymers of these where R1 and R2 are identical or different and are C1–C6-alkyl, linear or branched, and/or aryl; R3 is C1–C10-alkylene, linear or branched, C6–C10-arylene, -alkylarylene or -arylalkylene; M is calcium ions, magnesium ions, aluminum ions and/or zinc ions, m is 2 or 3; n is 1 or 3; x is 1 or 2; and comprising a component B1, B2 and/or B3 wherein B1 is a salt of 1,3,5-triazine compound with polyphosphoric acid, and wherein B2 is a melamine polymetaphosphate, and wherein B3 is a composite salt of polyphosphoric acid with melamine, melam and/or melem.Type: GrantFiled: September 11, 2003Date of Patent: December 5, 2006Assignee: Clariant GmbHInventors: Volker Thewes, Andrea Zurstrassen
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Publication number: 20060041042Abstract: The invention relates to a fire-protection coating which forms an insulating layer, which comprises a flame retardant mixture which comprises a phosphorus/nitrogen flame retardant and comprises a phosphinic salt of the formula (I) and/or comprises a diphosphinic salt of the formula (II) and/or comprises polymers of these, where R1, R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4 and x is from 1 to 4.Type: ApplicationFiled: August 17, 2005Publication date: February 23, 2006Inventors: Volker Thewes, Achim Hennemann
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Publication number: 20050222309Abstract: The invention relates to a phosphorus-containing flame retardant formulation for cellulose-containing moldings, comprising from 0.1 to 99.9% by weight of a resin of an organic nitrogen compound and from 0.1 to 99.9% by weight of a phosphorus-containing flame retardant.Type: ApplicationFiled: March 30, 2005Publication date: October 6, 2005Inventors: Harald Bauer, Werner Krause, Martin Sicken, Volker Thewes
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Publication number: 20040176268Abstract: The invention relates to a pulverulent laundry and cleaning detergents ingredient, to a process for its preparation and to its use.Type: ApplicationFiled: January 30, 2001Publication date: September 9, 2004Inventors: GUNTHER SCHIMMEL, HARALD BAUER, JOSEF HOLZ, VOLKER THEWES, RICHARD MERTENS, PETER HARDT, MATTHIAS BERGHAHN, THOMAS MULLER
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Publication number: 20040051087Abstract: The invention relates to a fire-protection coating which forms an insulating layer and is based on substances which, in the event of a fire, form a foam layer and form carbon, on film-forming binders, on blowing agents, and on conventional auxiliaries and additives, which comprises a phosphinic salt of the formula (I) and/or a diphosphinic salt of the formula (II), and/or their polymers, 1Type: ApplicationFiled: September 11, 2003Publication date: March 18, 2004Applicant: Clariant GmbHInventors: Volker Thewes, Andrea Zurstrassen
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Patent number: 6642284Abstract: The invention relates to a flame-retardant coating which forms an insulating layer and is based on substances which carbonize and which form a foam layer in the event of a fire, on film-forming binders, on blowing agents and on customary auxiliaries and additives, wherein the blowing agent and foam layer forming substance present comprises melamine polyphosphate. The novel flame-retardant coating which forms an insulating layer is particularly stable under tropical conditions (at up to 100% rel. humidity, about 75° C.), i.e. it releases only an extremely small amount of NH3.Type: GrantFiled: March 30, 2001Date of Patent: November 4, 2003Assignee: Clariant GmbHInventors: Volker Thewes, Wolf-Dieter Pirig
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Patent number: 6617382Abstract: The invention relates to a flame-retardant coating for fiber materials comprising at least one film-forming binder and one flame retardant, wherein this comprises melamine polyphosphate as flame retardant. The invention also relates to the use of the novel flame-retardant coating for producing flame-retardant fiber materials.Type: GrantFiled: April 28, 2000Date of Patent: September 9, 2003Assignee: Clariant GmbHInventors: Wolf-Dieter Pirig, Volker Thewes
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Publication number: 20010027226Abstract: The invention relates to a flame-retardant coating which forms an insulating layer and is based on substances which carbonize and which form a foam layer in the event of a fire, on film-forming binders, on blowing agents and on customary auxiliaries and additives, wherein the blowing agent and foam layer forming substance present comprises melamine polyphosphate.Type: ApplicationFiled: March 30, 2001Publication date: October 4, 2001Applicant: Clariant GmbHInventors: Volker Thewes, Wolf-Dieter Pirig
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Patent number: 6274111Abstract: The invention relates to a synthetic magnesium silicate having a layered crystalline structure, to a process for its preparation and to its use.Type: GrantFiled: June 30, 1998Date of Patent: August 14, 2001Assignee: Clariant GmbHInventors: Harald Bauer, Günther Schimmel, Volker Thewes
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Patent number: 6251961Abstract: The invention relates to a flame-retardant coating which forms an insulating layer and is based on substances which carbonize and form a foam layer in the event of a fire, on film-forming binders, on blowing agents and on customary auxiliaries and additives, wherein the blowing agent present comprises melamine polyphosphate. The novel flame-retardant coating which forms an insulating layer is particularly stable under tropical conditions (up to 100% rel. humidity, about 75° C.), i.e. it releases only an extremely small amount of NH3.Type: GrantFiled: March 2, 2000Date of Patent: June 26, 2001Assignee: Clariant GmbHInventors: Wolf-Dieter Pirig, Volker Thewes
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Patent number: 6099595Abstract: The invention relates to a process for the preparation of crystalline sodium silicates having a sheet structure and high .delta. phase content from water glass, which has been prepared hydrothermally, by dehydration of the water glass and subsequent crystallization at elevated temperature, which comprises treating the water glass at temperatures of from 50 to 140.degree. C. prior to dehydration.Type: GrantFiled: February 23, 1998Date of Patent: August 8, 2000Assignee: Clariant GmbHInventors: Josef Holz, Gunther Schimmel, Alexander Tapper, Volker Thewes
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Patent number: 6054513Abstract: The invention relates to a fireproof coating which forms an insulating layer and is based on carbon-forming substances forming a foam layer in the case of a fire, film-forming binders, blowing agents and conventional assistants and additives, wherein said coating contains, as blowing agents, a melamine salt and/or guanidine salts and/or microencapsulated melamine.The fireproof coating forming an insulating layer and according to the invention is stable in particular under tropical conditions (up to 100% rel. humidity, about 75.degree. C.), i.e. it releases only very little NH.sub.3.Type: GrantFiled: September 10, 1998Date of Patent: April 25, 2000Assignee: Clariant GmbHInventors: Wolf-Dieter Pirig, Susanne Rothkamp, Volker Thewes
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Patent number: 6036733Abstract: The invention relates to a process for the preparation of crystalline sodium silicates having a sheet structure and high .delta. phase content from water glass, which has been prepared predominantly hydrothermally, by dehydration of the water glass and subsequent crystallization at elevated temperature, wherein the water glass is a mixture of water glass prepared hydrothermally and tank furnace water glass, and also to its use.Type: GrantFiled: February 23, 1998Date of Patent: March 14, 2000Inventors: Josef Holz, Gunther Schimmel, Alexander Tapper, Volker Thewes
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Patent number: 5874397Abstract: The invention relates to a granular detergent builder in the form of cogranules of a mixture of sodium bicarbonate and crystalline sheet silicates of the formula NaMSi.sub.x O.sub.2x+1 *yH.sub.2 O, where M is sodium or hydrogen, x is a number from 1.9 to 4, and y is a number from 0 to 20, whereina) the granular detergent builder contains 5 to 50% by weight of crystalline sheet silicate and 50 to 95% by weight of sodium bicarbonate;b) has a pH of .ltoreq.10 in 1% strength solution in distilled water;c) has a calcium-binding capacity of .gtoreq.150 mg Ca/g (30.degree. German hardness) and a magnesium-binding capacity of .gtoreq.4 mg Mg/g (3.degree. German hardness), andd) has an apparent density of .gtoreq.850 g/l.The invention likewise relates to a process for the production of such a granular detergent builder, and to its use in detergents and cleaners.Type: GrantFiled: July 9, 1996Date of Patent: February 23, 1999Assignee: Hoechst AktiengesellschaftInventors: Gunther Schimmel, Alexander Tapper, Volker Thewes