Patents by Inventor Hans Heinrich Kuhn

Hans Heinrich Kuhn 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).

  • Water-soluble, non-polar solvent-soluble ethyleneoxy-propyleneoxy containing fugitial tints
    Patent number: 4113721
    Abstract: A water-soluble, non-polar solvent-soluble fugitive tint for textile materials is provided having the formulaR[(ethyleneoxy).sub.n (Propyleneoxy).sub.m ].sub.xwherein R is an organic dyestuff radical, [(ethyleneoxy).sub.n (Propyleneoxy).sub.m ] is a polymer obtained by combining n moles of ethylene oxide and m moles of propylene oxide, x is from 1 to 6, and said polymer contains from about 40 to 60 mole percent ethyleneoxy units, and the product (n + m).sub.x is from 30 to about 200.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: September 12, 1978
    Assignee: Milliken Research Corporation
    Inventors: Peter Jacob Hauser, Hans Heinrich Kuhn
  • Tint compositions for nylon having improved fugitivity properties
    Patent number: 4102644
    Abstract: Tint compositions for nylon having improved fugitivity properties comprising an admixture of a colorant having the general formulaR{N-[(CH.sub.2 CH.sub.2 O).sub.n H].sub.2 }.sub.xwherein R is an organic dyestuff radical, x is an integer of 1 to 6, and the product of 2n times x is from about 200 to about 300, and at least 30 weight percent of a water-soluble polymeric resin. A minor effective amount of a free radical inhibitor can be incorporated into the tint compositions to retard free radical interaction between the colorant and the nylon.
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: July 25, 1978
    Assignee: Milliken Research Corporation
    Inventors: Peter Jacob Hauser, James Easton Hendrix, Hans Heinrich Kuhn
  • Liquid, water-insoluble polymeric triphenylmethane colorants and aqueous dispersions containing same
    Patent number: 4091034
    Abstract: Liquid, water-insoluble colorants and aqueous dispersions of same are provided in which the colorant is represented by the formulaR - (oleophilic polymeric constituent).sub.n,Wherein R is an organic dyestuff radical, the oleophilic polymeric constituent is polyalkylene oxides and co-polymers of polyalkylene oxides in which the alkylene moiety of the polymeric constituent contains at least 3 carbon atoms and such polymeric constituent has a molecular weight of at least 500, and n is an integer of from 1 to 6.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: May 23, 1978
    Assignee: Milliken Research Corporation
    Inventor: Hans Heinrich Kuhn