Patents by Inventor Arpad Acs

Arpad Acs 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
  • Crystal polymorphs of C.I. Pigment Yellow 191 and their preparation
    Patent number: 6602342
    Abstract: C.I. Pigment Yellow 191 is obtained in new crystal polymorphs (beta, gamma, delta and epsilon phases) if the known alpha phase or another inventive phase of this pigment is treated with certain solvents and reprecipitated.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: August 5, 2003
    Assignee: Clariant GmbH
    Inventors: Martin U. Schmidt, Arpad Acs, Rüdiger Jung, Franz Schui
  • Safer pigment preparations
    Patent number: 6479569
    Abstract: The invention relates to a pigment preparation comprising an organic pigment and 0.2 to 20% by weight, based on the total weight of the pigment preparation, of an ammonium polyphosphate or of an organophosphorus compound.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: November 12, 2002
    Assignee: Clariant GmbH
    Inventors: Rüdiger Jung, Klaus Saitmacher, Arpad Acs
  • New crystal polymorphs of C.I. Pigment Yellow 191 and their preparation
    Publication number: 20020077387
    Abstract: C.I. Pigment Yellow 191 is obtained in new crystal polymorphs (beta, gamma, delta and epsilon phases) if the known alpha phase or another inventive phase of this pigment is treated with certain solvents and reprecipitated.
    Type: Application
    Filed: July 2, 2001
    Publication date: June 20, 2002
    Applicant: Clariant GmbH
    Inventors: Martin U. Schmidt, Arpad Acs, Rudiger Jung, Franz Schui
  • Safer pigment preparations
    Publication number: 20010007887
    Abstract: The invention relates to a pigment preparation comprising an organic pigment and 0.2 to 20% by weight, based on the total weight of the pigment preparation, of an ammonium polyphosphate or of an organophosphorus compound.
    Type: Application
    Filed: December 8, 2000
    Publication date: July 12, 2001
    Applicant: Clariant GmbH
    Inventors: Rudiger Jung, Klaus Saitmacher, Arpad Acs
  • Process for the preparation of triphenylemethane coloring agents
    Patent number: 5808116
    Abstract: Triaminotriphenylmethane pigments are prepared bya) first reacting an iron, boron or aluminum trihalide complex compound of a 4,4',4"-trihalotriphenylmethane halide with a salt of an aromatic aminosulfonic acid in a molar ratio of 0.6:1 to 1.4:1 at a temperature between 130.degree. and 180.degree. C.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: September 15, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Arpad Acs, Hans-Josef Remsperger, Jurgen Berger