Patents Represented by Attorney, Agent or Law Firm Anthony A. Biscula
  • Patent number: 7820850
    Abstract: The invention relates to phosphorus-containing mixtures, containing compounds of formula RO—PO(A)-CH2—CH2—CO2H and??(I) HO—PO(A)-CH2—CH2—CO2R,??(II) wherein A means C1-C18-Alkyl, C6-C18-Alkylaryl, C6-C18-Aralkyl or Aryl, R (D,E)C?C(B, R5) or H and B, D, E each H or C1-C18-Alkyl R5 C1-C20-(—CO—O-Hydroxyalkylen) a process for making these mixtures and their use.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: October 26, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Harald Bauer, Mathias Dietz, Ottmar Schacker
  • Patent number: 6821335
    Abstract: The invention relates to pigment preparations containing (a) at least one organic or inorganic pigment; (b) at least one cyclic imide of general formula (1) wherein R1 represents a linear-chain, branched or cyclic aliphatic radical having 10 to 30—preferably 12 to 25—carbon atoms, or an alkenyl radical having 10 to 30—preferably 12 to 25—carbon atoms, the aforementioned radicals being able to be substituted by at least one, e.g. 2, 3, 4 or 5, substituent from the group consisting of C1-C6-alkyl, C1-C6-alkoxy, C6-C10-aryl, hydroxy, carboxy, and sulfo, R2, R3, R4 and R5 are the same or different and represent hydrogen, C1-C10-alkyl, C1-C10-alkoxy, halogen, OR6, NR6R7, —COOR6, —CONR6R7, —NR6—COR7, SO2NR6R7, —SO3M, —NO2, —CN or CF3, R6 and R7 representing H or an alkyl radical having 1 to 10 C atoms and M representing an equivalent of a cation having a valency of 1 to 3; and (c) optionally further standard additives.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: November 23, 2004
    Assignee: Clariant GmbH
    Inventors: Martin Alexander Winter, Andreas Harz, Hans Joachim Metz
  • Patent number: 6515049
    Abstract: The present invention relates to water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.1 sulfoalkyl group per anhydroglucose unit, to processes for preparing them and to the use of water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.4 sulfoalkyl group per anhydroglucose unit as protective colloids in polymerizations.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: February 4, 2003
    Assignee: Clariant GmbH
    Inventors: Reinhard Doenges, Horst Wurm