Patents by Inventor Karl-Hans Muller

Karl-Hans Muller 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).

  • Patent number: 5382348
    Abstract: Bitumen granulate containing from 0.5 to 15% by weight, preferably from 6.1 to 15% by weight, of a powdering and separating agent such as, for example, synthetic silica or carbon black is produced by atomizing hot, liquid bitumen in a spray mixer and at the same time introducing the powdering and separating agent into the spray mixer by way of the stream of cold air.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: January 17, 1995
    Assignee: Degussa AG
    Inventors: Karl-Hans Muller, Walter Barthel
  • Patent number: 5124143
    Abstract: The toothpaste for preventative oral hygiene contains a mixture of synthetically prepared precipitated silicic acid and perlite in addition to a solvent as cleaning body.A mixture consisting of glycerol (86%) and water is used as solvent.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: June 23, 1992
    Assignee: Degussa AG
    Inventors: Hans R. Muhlemann, Karl-Hans Muller, Matthias Neumuller
  • Patent number: 4753791
    Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/l 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings > 63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol disper- sion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp5 ______________________________________The dental-care composition may additionally contain 0.
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: June 28, 1988
    Assignee: Degussa Aktiengessellschaft
    Inventors: Karl-Hans Muller, Matthias Neumuller, Gunther Turk
  • Patent number: 4705679
    Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which, as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/1 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings >63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol disper- sion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp5 ______________________________________The dental-care composition may additionally contain 0.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: November 10, 1987
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karl-Hans Muller, Matthias Neumuller, Gunther Turk
  • Patent number: 4704270
    Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which, as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/l 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings > 63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol disper- sion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp5 ______________________________________The dental-care composition may additionally contain 0.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: November 3, 1987
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karl-Hans Muller, Matthias Neumuller, Gunther Turk
  • Patent number: 4664907
    Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which, as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties:______________________________________ Pendulum roller mill Jet mill ______________________________________ BET surface area m.sup.2 /g 15-110 15-110 Tamped density g/l 150-750 90-650 Secondary particle size FIG. 1 FIG. 2 distribution according to Coulter Counter "ALPINE" screen % by <1.5 <0.1 retainings > 63 .mu.m weight Cu abrasion in 10% mg 5-30 5-30 strength glycerol dispersion Lightness value A % 86-96 90-96 Viscosity in a 30% 30,000-60,000 30,000-60,000 strength dispersion in a 1:1 glycerol/water mixture, Brookfield RTV, Sp 5 ______________________________________The dental-care composition may additionally contain 0.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: May 12, 1987
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karl-Hans Muller, Matthias Neumuller, Gunther Turk
  • Patent number: 4589989
    Abstract: A laundry softener concentrate comprises one or more laundry softeners, synthetic silicon dioxide, and optionally one or more solubilizers. The laundry softener concentrate is in the form of a flowable powder.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: May 20, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karl-Hans Muller, Manfred Diehl
  • Patent number: 4410589
    Abstract: There is provided a process for improving mineral asphaltic coatings for streets and roadways comprising preparing a mixture to be used as the base mineral asphalt coating material, homogeneously mixing in 0.1 to 10 weight % of silica which is either (1) a precipitated silica, (2) a precipitated and spray dried silica or (3) a pyrogenically produced silica and further working this mixture into a mineral asphalt coating for streets and roadways.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: October 18, 1983
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karl-Hans Muller, Walter Barthel, Rolf Oelmuller
  • Patent number: 4406817
    Abstract: Precipitated, jet ground silica with specific physical-chemical properties is mixed with silicone oil, homogenized and heated to produce an antifoam agent. This type of antifoam agent can be used in pharmacy, in producing foam stopping latex emulsion, in the food field, in washing formulations, in the textile industry as well as in the pigment and varnish industries.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: September 27, 1983
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karl-Hans Muller, Roland Tailfer, Gunter Turk
  • Patent number: 4378999
    Abstract: Powdery bitumen concentrates are prepared containing 10 to 85 weight %, preferably 40 to 80 weight %, of synthetic silica. The concentrate is used in asphalt mixtures for building roads to give high stiffening value thereto.
    Type: Grant
    Filed: August 6, 1980
    Date of Patent: April 5, 1983
    Assignee: Degussa AG
    Inventors: Karl-Hans Muller, Walter Barthel
  • Patent number: 4371400
    Abstract: A mastic asphalt composition is disclosed which comprises, in addition to the mastic asphalt, 0.2 to 5 wt. % of a crystalline, powdered, synthetic zeolite or zeolite mixture. In addition, the mastic asphalt composition may further contain precipitated silica.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: February 1, 1983
    Assignee: Degussa Aktiengesellschaft
    Inventors: Karl-Hans Muller, Walter Barthel
  • Patent number: 4322250
    Abstract: Mastic asphalt mixture for road, building and industrial construction, which contains 0.1 to 2% by weight of silica. For example, a precipitated silica, a precipitated and spray dried, or a pyrogenously produced silica may be used as a synthetic silicic acid. The content of synthetic silica produces an essentially higher degree of hardness in the finished mastic asphalt layer.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: March 30, 1982
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Karl-Hans Muller, Walter Barthel
  • Patent number: 4307023
    Abstract: There is produced a hydrophobic mixture for RTV and LTV silicone rubber by applying a hydrophobizing agent to a precipitated silica, homogeneously mixing this powdery concentrate into a pyrogenically produced silica, tempering the mixture and mechanically compacting. The hydrophobic filler mixture obtained in the untempered condition consists of:Pyrogenically produced silica: 50 to 85 weight %Precipitated silica: 5 to 40 weight % (e.g. 5 to 30 weight %)Hydrophobization agent: 8 to 30 weight %Aluminum oxide: 0.5 to 5 weight %.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: December 22, 1981
    Assignee: Degussa Aktiengesellschaft
    Inventors: Manfred Ettlinger, Karl-Hans Muller, Edgar Simon
  • Patent number: 4208213
    Abstract: A shoe cream polish composition which contains in addition to waxes, oils and the like, a finely divided pyrogenic, hydrophobic silicic acid.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: June 17, 1980
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Karl-Hans Muller, Roland Tailfer