Patents by Inventor Dieter Wegerle

Dieter Wegerle 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).

  • Dye mixtures with pyridoneazo dyes
    Patent number: 5547477
    Abstract: Dye mixtures useful for dyeing or printing textile fibers or fabrics contain from 40 to 75% by weight, based on the weight of the dyes, of a dye of the formula ##STR1## where R is C.sub.1 -C.sub.4 -alkyl and n is 1 and from 25 to 60% by weight, based on the weight of the dyes, of a dye of the abovementioned formula where R is C.sub.1 -C.sub.4 -alkyl and n is 2.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: August 20, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Arno Lange, Helmut Degen, Gunther Lamm, Helmut Reichelt, Dieter Wegerle
  • Dyeing of polyamide substrates with an organic N-nitroso-hydroxylamine as light stabilizer
    Patent number: 5076808
    Abstract: Polyamide substrates are dyed from aqueous baths with suitable dyes and with copper complexes of organic N-nitrosohydroxylamines as light stabilizers for the dyed polyamide.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: December 31, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Erwin Hahn, Alexander Aumueller, Wolfgang Reuther, Reinhold Krallmann, Dieter Wegerle
  • Light fastness of polyester dyeings using benzophenone ether esters, and novel benzophenone ether esters
    Patent number: 4911732
    Abstract: Improved light fastness of dyeings on textile polyester material with disperse dyes is obtainable by dyeing in the presence of certain benzophenone ether esters, some of which are novel.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: March 27, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Neumann, Dieter Wegerle, Reinhold Krallmann
  • Benzophenone ether esters and use thereof to improve the light fastness of polyester dyeings
    Patent number: 4789382
    Abstract: Textile polyester material is dyed with disperse dyes in the presence of specific benzophenone derivatives, some of which are novel, to improve the light fastness.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: December 6, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Neumann, Dieter Wegerle, Reinhold Krallmann
  • Lightfastness of dyeings obtained with acid dyes or metal complex dyes on polyamides: treatment with copper hydroxamates
    Patent number: 4707161
    Abstract: A process for improving the lightfastness of dyeings obtained with acid dyes and/or metal complex dyes on polyamide textile materials, by treating the latter with 0.01-1% by weight of a copper hydroxamate before, during or after dyeing.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: November 17, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Thomas, Peter Neumann, Dieter Wegerle, Reinhold Krallmann
  • Lightfastness of dyeings obtained with acid dyes or metal complex dyes on polyamides
    Patent number: 4613334
    Abstract: A process for improving the lightfastness of dyeings obtained with acid dyes and/or metal complex dyes on polyamide textile materials, by treating the latter and 0.01-1% by weight of a copper hydroxamate before, during or after dyeing.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: September 23, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Thomas, Peter Neumann, Dieter Wegerle, Reinhold Krallmann
  • Removal of oligomer deposits from textile materials
    Patent number: 4294576
    Abstract: A process for removing oligomer deposits from dyed and non-dyed textile materials which consist of polyester fibers or of blends of these fibers with other fibers, and from dyeing machinery, by a treatment with an aqueous, alkaline liquor which contains from 0.1 to 10 g/l of a quaternary ammonium compound carrying not less than two C.sub.6 -C.sub.22 -alkyl or -alkenyl groups on the quaternary nitrogen, at up to 100.degree. C. The oligomers are hydrolyzed and are removed together with the treatment liquor.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: October 13, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Helfert, Friedrich Reinert, Paul Richter, Michele Vescia, Dieter Wegerle