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).

  • Publication number: 20140005298
    Abstract: 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: Application
    Filed: March 17, 2011
    Publication date: January 2, 2014
    Applicant: Rudolf Hensel GmbH
    Inventor: Volker Thewes
  • Patent number: 7622517
    Abstract: 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: Grant
    Filed: April 18, 2008
    Date of Patent: November 24, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Harald Bauer, Werner Krause, Martin Sicken, Volker Thewes
  • Publication number: 20090005471
    Abstract: 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: Application
    Filed: April 18, 2008
    Publication date: January 1, 2009
    Inventors: Harald Bauer, Werner Krause, Martin Sicken, Volker Thewes
  • Patent number: 7256169
    Abstract: The invention relates to a pulverulent laundry and cleaning detergents ingredient, to a process for its preparation and to its use.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: August 14, 2007
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Günther Schimmel, Harald Bauer, Josef Holz, Volker Thewes, Richard Mertens, Peter Hardt, Matthias Berghahn, Thomas Müller
  • Patent number: 7144527
    Abstract: 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: Grant
    Filed: September 11, 2003
    Date of Patent: December 5, 2006
    Assignee: Clariant GmbH
    Inventors: Volker Thewes, Andrea Zurstrassen
  • Publication number: 20060041042
    Abstract: 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: Application
    Filed: August 17, 2005
    Publication date: February 23, 2006
    Inventors: Volker Thewes, Achim Hennemann
  • Publication number: 20050222309
    Abstract: 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: Application
    Filed: March 30, 2005
    Publication date: October 6, 2005
    Inventors: Harald Bauer, Werner Krause, Martin Sicken, Volker Thewes
  • Publication number: 20040176268
    Abstract: The invention relates to a pulverulent laundry and cleaning detergents ingredient, to a process for its preparation and to its use.
    Type: Application
    Filed: January 30, 2001
    Publication date: September 9, 2004
    Inventors: GUNTHER SCHIMMEL, HARALD BAUER, JOSEF HOLZ, VOLKER THEWES, RICHARD MERTENS, PETER HARDT, MATTHIAS BERGHAHN, THOMAS MULLER
  • Publication number: 20040051087
    Abstract: 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, 1
    Type: Application
    Filed: September 11, 2003
    Publication date: March 18, 2004
    Applicant: Clariant GmbH
    Inventors: Volker Thewes, Andrea Zurstrassen
  • Patent number: 6642284
    Abstract: 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: Grant
    Filed: March 30, 2001
    Date of Patent: November 4, 2003
    Assignee: Clariant GmbH
    Inventors: Volker Thewes, Wolf-Dieter Pirig
  • Patent number: 6617382
    Abstract: 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: Grant
    Filed: April 28, 2000
    Date of Patent: September 9, 2003
    Assignee: Clariant GmbH
    Inventors: Wolf-Dieter Pirig, Volker Thewes
  • Publication number: 20010027226
    Abstract: 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: Application
    Filed: March 30, 2001
    Publication date: October 4, 2001
    Applicant: Clariant GmbH
    Inventors: Volker Thewes, Wolf-Dieter Pirig
  • Patent number: 6274111
    Abstract: The invention relates to a synthetic magnesium silicate having a layered crystalline structure, to a process for its preparation and to its use.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: August 14, 2001
    Assignee: Clariant GmbH
    Inventors: Harald Bauer, Günther Schimmel, Volker Thewes
  • Patent number: 6251961
    Abstract: 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: Grant
    Filed: March 2, 2000
    Date of Patent: June 26, 2001
    Assignee: Clariant GmbH
    Inventors: Wolf-Dieter Pirig, Volker Thewes
  • Patent number: 6099595
    Abstract: 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: Grant
    Filed: February 23, 1998
    Date of Patent: August 8, 2000
    Assignee: Clariant GmbH
    Inventors: Josef Holz, Gunther Schimmel, Alexander Tapper, Volker Thewes
  • Patent number: 6054513
    Abstract: 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: Grant
    Filed: September 10, 1998
    Date of Patent: April 25, 2000
    Assignee: Clariant GmbH
    Inventors: Wolf-Dieter Pirig, Susanne Rothkamp, Volker Thewes
  • Patent number: 6036733
    Abstract: 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: Grant
    Filed: February 23, 1998
    Date of Patent: March 14, 2000
    Inventors: Josef Holz, Gunther Schimmel, Alexander Tapper, Volker Thewes
  • Patent number: 5874397
    Abstract: 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: Grant
    Filed: July 9, 1996
    Date of Patent: February 23, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Schimmel, Alexander Tapper, Volker Thewes