Patents by Inventor Hans-Friedrich Herrmann

Hans-Friedrich Herrmann 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: 20200215811
    Abstract: A method of making a physical object by additive manufacturing. In the method a hardenable primary material is provided, the object is built up by successively hardening layers of the hardenable primary material, and the object is cleaned from excess material by moving the object and thereby generating a mass inertial force in the excess material. The invention facilitates the making of objects by additive manufacturing.
    Type: Application
    Filed: July 23, 2018
    Publication date: July 9, 2020
    Inventors: Anja Friedrich, Christian A. Richter, Malte Korten, Bastian Kirchner, Michael Jahns, Karin Zanklmaier, Gioacchino Raia, Hans R. Schnagl, Andreas G. Herrmann, Daniel D. Oberpertinger
  • Patent number: 10526517
    Abstract: The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterised in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170° C., of at most 23 mN/m.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: January 7, 2020
    Assignee: Clariant International Ltd.
    Inventors: Timo Herrlich, Christian Steib, Hans-Friedrich Herrmann, Andreas Lang
  • Publication number: 20190225846
    Abstract: The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterised in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170° C., of at most 23 mN/m.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Applicant: CLARIANT INTERNATIONAL LTD.
    Inventors: Timo HERRLICH, Christian STEIB, Hans-Friedrich HERRMANN, Andreas LANG
  • Patent number: 10287467
    Abstract: The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterized in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170 DEG C., of at most 23 mN/m.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 14, 2019
    Assignee: Clariant International Ltd.
    Inventors: Timo Herrlich, Christian Steib, Hans-Friedrich Herrmann, Andreas Lang
  • Publication number: 20180127522
    Abstract: A polyethylene homopolymer having improved grindability, prepared with a metallocene catalyst system and is characterized by a melt viscosity of 5 to <60 mPa·s at 140° C. and a ram penetration hardness ranging from 210 to 500 bar, as measured according to DGF M-III 9e, and to use thereof as a component in toners, hot-melt adhesives or pigment master batches.
    Type: Application
    Filed: April 26, 2016
    Publication date: May 10, 2018
    Applicant: CLARIANT PLASTICS & COATINGS LTD
    Inventors: Andreas LANG, Hans-Friedrich HERRMANN, Gerd HOHNER, Sebastijan BACH, Rainer FELL
  • Publication number: 20160053149
    Abstract: The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterised in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170 DEG C., of at most 23 mN/m.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 25, 2016
    Applicant: CLARIANT INTERNATIONAL LTD.
    Inventors: Timo HERRLICH, Christian STEIB, Hans-Friedrich HERRMANN, Andreas LANG
  • Patent number: 7825186
    Abstract: The invention relates to hot melt compositions comprising polyolefin waxes prepared using metallocene catalysts, have a dropping point or ring & ball softening point of between 80 and 165° C., have a melt viscosity, measured at a temperature of 170° C., of between 20 and 40 000 mPa·s, and have a glass transition temperature of not more than ?10° C. and also to their use as hot melt adhesives and as binders for producing roadmarkings.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: November 2, 2010
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
  • Publication number: 20090036619
    Abstract: Polypropylene wax having a) a dropping or softening point determined by the ring/ball method of greater than 155° C., b) heats of fusion greater than 80 J/g and c) a DSC melting point of >155° C. The waxes of the invention are prepared by reaction of propylene with metallocene compounds at temperatures in the range from 40 to 140° C. and an olefin partial pressure in the range from 1 to 50 bar in the presence of a cocatalyst. They have a content of unsaturated chain ends of less than 10%. They can, for example, be modified by means of a free-radical grafting reaction with polar monomers and are, for example, suitable in unmodified form as dispersants for pigments, as additive in printing inks and surface coatings or toners or in modified form for producing aqueous dispersions or as bonding agents and compatibilizers in plastic compounds.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 5, 2009
    Inventors: Hans-Friedrich Herrmann, Gerald Mehltretter, Hans Rausch, Gerd Hohner
  • Publication number: 20080262148
    Abstract: The invention relates to hot melt compositions comprising polyolefin waxes prepared using metallocene catalysts, have a dropping point or ring & ball softening point of between 80 and 165° C., have a melt viscosity, measured at a temperature of 170° C., of between 20 and 40 000 mPa·s, and have a glass transition temperature of not more than ?10° C. and also to their use as hot melt adhesives and as binders for producing roadmarkings.
    Type: Application
    Filed: June 11, 2008
    Publication date: October 23, 2008
    Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
  • Publication number: 20070117894
    Abstract: Hot melt compositions of the type according to the invention comprise up to 40% by weight of one or more isotactic homopolymer and/or copolymer waxes comprising the monomers ethylene and/or propylene and/or higher linear or branched alpha-olefins having 4 to 20 carbon atoms, which have been prepared by polymerization of the corresponding monomers in the presence of metallocene as catalyst, and at least 60% by weight of one or more amorphous, atactic polyalpha-olefins. Hot melt compositions of this kind are suitable for use as hot melt adhesives.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 24, 2007
    Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
  • Publication number: 20070117907
    Abstract: The invention relates to hot melt compositions based on isotactic, low molecular mass, low viscosity homopolymer or copolymer waxes and atactic polyalpha-olefins (APAOs). Hot melt compositions of this kind can be used with outstanding effect as hot melt adhesives.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 24, 2007
    Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
  • Publication number: 20070117906
    Abstract: Hot melt compositions are based on isotactic, low molecular mass, low viscosity homopolymer or copolymer waxes, atactic polyalpha-olefins (APAOs), and a resin fraction below 20% by weight. Hot melt compositions of this kind can be used with outstanding effect as hot melt adhesives.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 24, 2007
    Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
  • Publication number: 20070031361
    Abstract: Cosmetic, pharmaceutical or dermatological preparations are described which comprise one or more homopolymer and/or copolymer waxes of the monomers ethylene and/or propylene. The homopolymer and copolymer waxes have a weight-average molecular weight Mw of less than or equal to 25 000 g/mol, a number-average molecular weight Mn of less than or equal to 15 000 g/mol, a molar mass distribution Mw/Mn in the range from 1.5 to 10 and have been obtained by metallocene catalysis. The copolymer waxes comprise, based on the total weight of the copolymer waxes, 0.1 to 30.0% by weight of structural units originating from the one monomer and 70.0 to 99.9% by weight of structural units originating from the other monomer.
    Type: Application
    Filed: June 8, 2006
    Publication date: February 8, 2007
    Inventors: Hans-Friedrich Herrmann, Anton Lukasch, Gerd Hohner, Heike Michaelis, Angela Lachmann
  • Publication number: 20060235134
    Abstract: The invention relates to hot-melt adhesive materials containing polyolefin waxes, wherein said polyolefin waxes are produced with the aid of metallocen catalysts and have a ring/ball dripping or softening point between 80 and 165° C. and a maximum melt viscosity of 40000 mPa·s, measured at a temperature of 10° C. above the dripping or softening point.
    Type: Application
    Filed: May 18, 2004
    Publication date: October 19, 2006
    Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
  • Publication number: 20060074171
    Abstract: The invention relates to hot melt compositions comprising polyolefin waxes prepared using metallocene catalysts, have a dropping point or ring & ball softening point of between 80 and 165° C., have a melt viscosity, measured at a temperature of 170° C., of between 20 and 40 000 mPa·s, and have a glass transition temperature of not more than ?10° C. and also to their use as hot melt adhesives and as binders for producing roadmarkings.
    Type: Application
    Filed: October 6, 2005
    Publication date: April 6, 2006
    Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
  • Patent number: 6407189
    Abstract: The present invention relates to a polypropylene wax having a melt viscosity of from 50 to 100,000 mPas at 170° C., a DSC heat of fusion less than 80 J/g, a DSC melting point of greater than 130° C. and a molecular weight distribution Mw/Mn of less than or equal to 3.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: June 18, 2002
    Assignee: Clariant GmbH
    Inventor: Hans-Friedrich Herrmann
  • Patent number: 6384148
    Abstract: The present invention relates to polymer oxidates prepared by reacting polyethylene which has been obtained using metallocene catalysts and which has a weight-average molar mass above 40,000 g/mol with oxygen or oxygen-containing gas mixtures. These polymer oxidates have high suitability for preparing aqueous dispersions, as a material added when dispersing pigments in masterbatches, or for surface-modification or for polar modification of polyolefins. Another advantageous application sector is use as an additive, e.g. as a lubricant for plastics processing.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: May 7, 2002
    Assignee: Clariant GmbH
    Inventors: Hans-Friedrich Herrmann, Gerd Hohner
  • Publication number: 20020013217
    Abstract: The present invention relates to a supported catalyst for the polymerization of olefins, which can be prepared by reacting the reaction product formed from an aluminoxane and at least one metallocene with a microporous, polymeric support.
    Type: Application
    Filed: March 31, 1993
    Publication date: January 31, 2002
    Applicant: Hans-Friedrich Herrmann
    Inventors: HANS-FRIEDRICH HERRMANN, BERND BACHMANN, BERNHARD HIERHOLZER, WALTER SPALECK
  • Patent number: 6331590
    Abstract: The present invention relates to homopolymer and copolymer waxes which have been prepared by polymerization using metallocene compounds in the presence of hydrogen and have a melt viscosity of less then 100 mPas, measured at 170° C. As a result of their high thermal stabillty, these waxes display neither discoloration nor crosslinking reactions and are vary well suited for use in toners, for plastics processing, for masterbatches, for printing inks, surface coatings and melt adhesives.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: December 18, 2001
    Assignee: Clariant GmbH
    Inventors: Hans-Friedrich Herrmann, Gerd Hohner
  • Patent number: 6143846
    Abstract: The present invention relates to homopolymer and copolymer waxes which have been prepared by polymerization using metallocene compounds in the presence of hydrogen and have a melt viscosity of less than 100 mPas, measured at 170.degree. C.As a result of their high thermal stability, these waxes display neither discoloration nor crosslinking reactions and are very well suited for use in toners, for plastics processing, for masterbatches, for printing inks, surface coatings and melt adhesives.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: November 7, 2000
    Assignee: Clariant GmbH
    Inventors: Hans-Friedrich Herrmann, Gerd Hohner