Patents by Inventor Till Borchert

Till Borchert 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).

  • Phenylpyrazolone colorant
    Patent number: 8002888
    Abstract: The invention relates to a colorant of the formula (2) where M=Ca, Sr or a combination of Ca and Sr.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: August 23, 2011
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Arpad Acs, Till Borchert, Ruediger Jung, Steffen Schneider
  • Pigment composition based on C.I. pigment yellow 191
    Patent number: 7824488
    Abstract: The invention relates to a pigment composition based on P.Y. 191 of the formula (1) containing 0.05 to 30 mol %, based on the sum of P.Y. 191 and a further yellow colorant, of at least one further yellow colorant of the formula (2) and/or of C.I. Pigment Yellow 100 in which R1, R2, R3 and R4 are each independently hydrogen, halogen, —CH3, —NO2, or NH—R6 where R6 is C1-C4-alkyl; R5 is methyl or carboxyl, and where the compound of the formula (2) is not C.I. Pigment Yellow 191.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: November 2, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Till Borchert, Martin Ulrich Schmidt, Arpad Acs, Ruediger Jung
  • Novel Phenylpyrazolone Colorant
    Publication number: 20100192801
    Abstract: The invention relates to a colorant of the formula (2) where M=Ca, Sr or a combination of Ca and Sr.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 5, 2010
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Arpad Acs, Till Borchert, Ruediger Jung, Steffen Schneider
  • Pigment Composition Based on C.I. Pigment Yellow 191
    Publication number: 20100099039
    Abstract: The invention relates to a pigment composition based on P.Y. 191 of the formula (1) containing 0.05 to 30 mol %, based on the sum of P.Y. 191 and a further yellow colorant, of at least one further yellow colorant of the formula (2) and/or of C.I. Pigment Yellow 100 in which R1, R2, R3 and R4 are each independently hydrogen, halogen, —CH3, —NO2, or NH—R6 where R6 is C1-C4-alkyl; R5 is methyl or carboxyl, and where the compound of the formula (2) is not C.I. Pigment Yellow 191.
    Type: Application
    Filed: February 12, 2008
    Publication date: April 22, 2010
    Applicant: CLARIANT INTERNATIONAL LTD.
    Inventors: Till Borchert, Martin Ulrich Schmidt, Arpad Acs, Ruediger Jung
  • Stabilized aqueous colorant preparations
    Publication number: 20060127272
    Abstract: The invention relates to the use of an antimicrobially effective amount of a mixture from 5-chloro-2-methyl-4-isothlazolin-3-one, 2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one and 2-bromo-2-nitropropane-1,3-diol as a biocide in aqueous colorant preparations that have a heavy metal ion concentration of greater or equal 20 ppm. The invention effectively prevents the formation of precipitations.
    Type: Application
    Filed: May 21, 2004
    Publication date: June 15, 2006
    Inventors: Klaus Saitmacher, Josef Geisenberger, Karl-Heinz Schweikart, Till Borchert
  • Pigment for warpage-free polyolefins coloration
    Patent number: 6638996
    Abstract: Use of the pigment of formula (I) in which X stands for Cl or CH3, and of formula (II) wherein R is phenyl or C12H25, for the coloration of polyolefins which do not warp.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: October 28, 2003
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bansi Lal Kaul, Bruno Piastra, Till Borchert
  • Process for the preparation of thiazine-indigo compounds and of new intermediates therefor
    Patent number: 6472527
    Abstract: New heterocyclic compounds are disclosed which are used as intermediates for the preparation of trans-thiazine-indigo pigments which are in part new compounds and can be used for the mass pigmentation of organic substrates. Also disclosed are different environmentally friendly water-based processes for the preparation of the new heterocyclic compounds and the corresponding pigments.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 29, 2002
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Till Borchert, Bansi Lal Kaul, Bruno Piastra, Valérie Wolf