Patents by Inventor Michele Vescia

Michele Vescia 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).

  • Patent number: 4931065
    Abstract: Reactive dyeings on textile materials containing cellulose fibers are aftertreated with aqueous solutions of benzylated resins which are obtainable(a) by condensation of methylamine and epichlorohydrin or(b) by heating triethanolamine and/or triisopropanolamine in the presence of acidic catalystsand have been reacted with from 0.25 to 1 mole of benzyl chloride per mole of amine in the condensate.The dyed textile materials aftertreated in this manner possess good wet fastness.
    Type: Grant
    Filed: October 21, 1986
    Date of Patent: June 5, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Baumgarte, Rolf Fikentscher, Sigismund Heimann, Heinrich Mertens, Siegfried Schneider, Michele Vescia
  • Patent number: 4813971
    Abstract: Textile materials made of natural or synthetic polyamides or mixtures thereof are dyed in the presence of a cyclic ester of sulfurous acid with an aliphatic 1,2-diol in place of a customary pH regulant.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: March 21, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Sigismund Heimann, Michele Vescia, Attila Bereck, Hermann Sulz, Ingrid Steenken
  • Patent number: 4704132
    Abstract: Dyeings with reactive dyes on cellulose fiber materials are after-treated with an aqueous solution of a condensate which is obtainable by reacting (a) bisbenzylpiperzine with (b) ethylene chloride, an epihalohydrin, propylene chloride, 1,3-dichloro-2-hydroxypropane, bisepoxybutane or 1,4-dichlorobutane or a mixture of these, in a molar ratio of from 1:0.5 to 1:1.1, or by reacting (c) piperazine, bis-1,4-aminopropylpiperazine, 1-aminoethylpiperazine, 2-hydroxyethylpiperazine or 1-methylpiperazine, or a mixture of these, with a compound according to (b) in a molar ratio of from 1:0.5 to 1:1.1 and benzylating the condensate, the benzylation being carried out using 0.15-1.0 mole of benzyl chloride per equivalent of nitrogen in component (c). The cellulose fiber materials after-treated in this manner possess very good wetfastness.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: November 3, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Fikentscher, Sigismund Heimann, Heinrich Mertens, Siegfried Schneider, Michele Vescia
  • Patent number: 4592758
    Abstract: Textile materials of natural polyamides or nylons, dyed with a dye containing acid groups, are after-treated with a dilute aqueous solution of a cationic condensate which is obtained by reaction of (a) piperazine or a derivative of piperazine with (b) a bifunctional crosslinking agent, such as an epihalohydrin, in a molar ratio of from 1:0.5 to 1:1.1, and quaternization of the condensate with benzyl chloride, from 0.15 to 1.0 mole of benzyl chloride being employed per equivalent of nitrogen in the component (a) during the quaternization. This after-treatment improves the wetfastness of the dye.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: June 3, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Fikentscher, Heinrich Mertens, Klaus Reincke, Michele Vescia
  • Patent number: 4345910
    Abstract: A process for dyeing polyester fibers which do not require a carrier with disperse dyes by the exhaustion method at 20.degree.-100.degree. C. and pH 4-6, with liquor ratios of from 5:1 to 100:1, and dyeing times of from 30 to 180 minutes, wherein the dyeing is carried out in the presence of from 0.5 to 20%, based on fiber weight, of a leveling agent consisting of an adduct of a C.sub.5 -C.sub.14 -alkylphenol or C.sub.5 -C.sub.14 -alkylnaphthol with from 4 to 25 moles of ethylene oxide.
    Type: Grant
    Filed: February 10, 1981
    Date of Patent: August 24, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Michele Vescia, Sigismund Heimann
  • 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
  • Patent number: 4240792
    Abstract: Dyed or printed synthetic fibers or materials consisting of synthetic fibers or of a mixture of synthetic fibers with other fibers are aftertreated with aqueous solutions which contain from 0.2 to 20 g/l of a mixture of one or more surfactants and a reductonate. The pH of the liquor is brought to above 8 and the aftertreatment is carried out at from 40.degree. to 100.degree. C.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: December 23, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Baumgarte, Sigismund Heimann, Michele Vescia, Johannes Winkler
  • Patent number: 4009997
    Abstract: A levelling auxiliary for dyeing fibrous material of polyamide fibers with acid dyes in the acid pH range in the presence of a mixture which contains (based on the solids in each case) from 30 to 90% by weight of a surfactant having sulfonic acid groups and from 10 to 70% by weight of an oxyethylated polyamide which has been prepared by the reaction of 1 part by weight of polyamide with from 2.5 to 3.5 parts by weight of ethylene oxide. Level dyeings devoid of streaks are obtained.
    Type: Grant
    Filed: August 15, 1974
    Date of Patent: March 1, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Greif, Michele Vescia, Manfred Daeuble, Hans Heinrich
  • Patent number: 3989456
    Abstract: Polyester fibers are dyed level shades at above 100.degree. C with disperse dyes from an aqueous liquor containing emulsions of aliphatic alcohols of 8 to 12 carbon atoms.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: November 2, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Michele Vescia, Manfred Daeuble, Rudi Widder