Patents Represented by Attorney, Agent or Law Firm Miles Dearth
  • Patent number: 6204420
    Abstract: The invention relates to a synergistic mixture of A from 5 to 99% by weight of a carboxylic acid having more than 4 carbon atoms, an ethercarboxylic acid containing C18-C22-alkyl, C18-C22-alkenyl or C6-C18-alkylaryl substituents, an amidocarboxylic acid, or mixtures thereof, B from 1 to 95% by weight of a phosphoric mono- or diester, or mixtures thereof, which is substituted by C18-C22-alkyl, C18-C22-alkenyl, C6-C18-alkylaryl or alkoxylated groups, where the sum of components A and B is 100% by weight, to crude oils containing such mixtures, and to a process for dispersing asphaltenes in crude oils.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: March 20, 2001
    Assignee: Clariant GmbH
    Inventors: Dennis Miller, Axel Vollmer, Michael Feustel, Peter Klug
  • Patent number: 6177497
    Abstract: The invention relates to an additive for inhibiting gas hydrate formation, containing a) from 5 to 90% by weight of 2-isobutoxyethanol, b) from 5 to 60% by weight of a copolymer which has structural units which are derived from maleic acid, maleic anhydride or derivatives of maleic acid or of maleic anhydride, and c) at least 10% by weight of water or a monohydric or polyhydric alcohol, except the 2-isobutoxyethanol, or mixtures of the stated substances, based on the total weight of the additive, the sum of the contents of compounds a) and b) being from 10 to 90% by weight, and a process for inhibiting gas hydrate formation using 2-isobutoxyethanol.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: January 23, 2001
    Assignee: Clariant GmbH
    Inventors: Peter Klug, Frank Holtrup
  • Patent number: 6107266
    Abstract: The present invention relates to a process for producing coated bleach activator granules in which bleach activator base granules are coated with a coating substance and are simultaneously and/or subsequently thermally conditioned.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: August 22, 2000
    Assignee: Clariant GmbH
    Inventors: Johannes Himmrich, Georg Borchers
  • Patent number: 5104741
    Abstract: Products formed from crosslinked vinyl resins and a plasticizer exhibit a low degree of marring after contacting polymeric substrates or substrates coated with a polymeric layer.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: April 14, 1992
    Assignee: The B. F. Goodrich Company
    Inventors: William S. Greenlee, Ross J. Cozens