Patents by Inventor Heinfred Ohleier

Heinfred Ohleier 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).

  • Method for the production of pigment granules
    Patent number: 7399354
    Abstract: Dispersible pigment granules are produced by mixing an aqueous suspension of an organic pigment with an aqueous emulsion of a wax-like additive. The aqueous emulsion is then allowed to coagulate and the resulting aqueous dispersion is spray dried.
    Type: Grant
    Filed: April 27, 2002
    Date of Patent: July 15, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Hans Joachim Metz, Andreas Stohr, Heinfred Ohleier
  • Powdery pigment preparations for dyeing films
    Patent number: 7384999
    Abstract: The invention relates to a powdery pigment preparation containing a pigment which is dispersed in an acrylate resin and which is characterized in that the acrylate resin has an average molecular mass Mw ranging from 40000 to 80000 g/mol and is a copolymer comprised of 50 to 65 mol % ethyl methacrylate, of 30 to 45 mol % butyl methacrylate, and of 0.5 to 5 mol % methacrylic acid. The powdery pigment preparation can be used for dyeing films, particularly those made of polymethyl methacrylate. The films do not have any specks nor holes.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: June 10, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Robert Balent, Dietmar Beck, Heinfred Ohleier
  • Green pigment preparations
    Patent number: 7318860
    Abstract: A green pigment preparation that is characterized by a C.I. Pigment Yellow 214 and at least one copper phthalocyanine pigment C.I. Pigment Blue 15:3 and/or C.I. Pigment Blue 15:1 content, the ratio of C.I. Pigment Yellow 214 to the at least one copper phthalocyanine pigment being in the range from 1:20 to 20:1. The inventive pigment preparation are especially suitable for the low-warpage colouring of semicrystalline plastics with pure green tones.
    Type: Grant
    Filed: October 30, 2004
    Date of Patent: January 15, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Heinfred Ohleier, Joachim Weber, Olaf Schupp
  • Green pigment preparations
    Publication number: 20070068420
    Abstract: The invention relates to a green pigment preparation that is characterised by a C.I. Pigment Yellow 214 and a copper phthalocyanine pigment C.I. Pigment Blue 15:3 and/or C.I. Pigment Blue 15:1 content, the ratio of C.I. Pigment Yellow 214 to copper phthalocyanine pigment being between 1 to 20 and 20 to 1. The inventive pigment preparations are especially suitable for the low-warpage colouring of semicrystalline plastics with pure green tones.
    Type: Application
    Filed: October 30, 2004
    Publication date: March 29, 2007
    Inventors: Heinfred Ohleier, Joachim Weber, Olaf Schupp
  • Powdery pigment preparations for dyeing films
    Publication number: 20060241231
    Abstract: The invention relates to a powdery pigment preparation containing a pigment which is dispersed in an acrylate resin and which is characterized in that the acrylate resin has an average molecular mass Mw ranging from 40000 to 80000 g/mol and is a copolymer comprised of 50 to 65 mol % ethyl methacrylate, of 30 to 45 mol % butyl methacrylate, and of 0.5 to 5 mol % methacrylic acid. The powdery pigment preparation can be used for dyeing films, particularly those made of polymethyl methacrylate. The films do not have any specks nor holes.
    Type: Application
    Filed: June 27, 2006
    Publication date: October 26, 2006
    Inventors: Robert Balent, Dietmar Beck, Heinfred Ohleier
  • Method for the production of pigment granules
    Publication number: 20040143040
    Abstract: Dispersible pigment granules are produced by mixing an aqueous suspension of an organic pigment with an aqueous emulsion of a wax-like additive. The aqueous emulsion is then allowed to coagulate and the resulting aqueous dispersion is spray dried.
    Type: Application
    Filed: November 5, 2003
    Publication date: July 22, 2004
    Inventors: Hans Joachim Metz, Andreas Stohr, Heinfred Ohleier
  • Powdery pigment preparations for dyeing films
    Publication number: 20040059029
    Abstract: The invention relates to a powdery pigment preparation containing a pigment which is dispersed in an acrylate resin and which is characterized in that the acrylate resin has an average molar mass Mw ranging from 40000 to 80000 g/mol and is a copolymer comprised of 50 to 65 mol % ethyl methacrylate, of 30 to 45 mol % butyl methacrylate, and of 0.5 to 5 mol % methacrylic acid. The powdery pigment preparation can be used for dying films, particularly those made of polymethyl methacrylate. The films do not have any specks nor holes.
    Type: Application
    Filed: July 11, 2003
    Publication date: March 25, 2004
    Inventors: Robert Balent, Dietmar Beck, Heinfred Ohleier
  • Process for the preparation of pigment granules
    Patent number: 6485558
    Abstract: The invention relates to a process for the preparation of pigment granules, which comprises adding a wax or a waxy polymer to an organic pigment during the finish in an organic or aqueous organic medium and spray-drying the aqueous suspension obtained after removal of the organic solvent by steam distillation or washing out with water.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: November 26, 2002
    Assignee: Clariant GmbH
    Inventors: Hans Joachim Metz, Heinfred Ohleier