Patents by Inventor Einhard Wagner

Einhard Wagner 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).

  • Formulation for use in chrome or chrome-free tannage
    Patent number: 7771489
    Abstract: A formulation for use in chrome-free or chrome tanning is proposed, comprising a clay mineral which, after vigorous stirring for 30 minutes in water at 50° C., has a number average particle diameter of less than 2 ?m or a bimodal size distribution with a first, finely divided fraction whose number average particle diameter is less than 0.5 ?m and a second, coarser fraction whose number average particle diameter is less than 5 ?m, determined in each case by the method according to ISO 13320-1, by combined laser light diffraction and light scattering, the amount of the first, finely divided fraction being from 10 to 90% by weight, and one or more substances from one or more of the following groups: organic polymers, aldehyde tanning agents, sulfone tanning agents, resin tanning agents, phenol tanning agents, fatliquoring agents, vegetable tanning agents, dyes and pigments.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: August 10, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Hueffer, Stefan Schroeder, Einhard Wagner, Thorsten Raedler, Karl Vill
  • Formulation for use in chrome or chrome-free tannage
    Publication number: 20060101584
    Abstract: A formulation for use in chrome-free or chrome tanning is proposed, comprising a clay mineral which, after vigorous stirring for 30 minutes in water at 50° C., has a number average particle diameter of less than 2 ?m or a bimodal size distribution with a first, finely divided fraction whose number average particle diameter is less than 0.5 ?m and a second, coarser fraction whose number average particle diameter is less than 5 ?m, determined in each case by the method according to ISO 13320-1, by combined laser light diffraction and light scattering, the amount of the first, finely divided fraction being from 10 to 90% by weight, and one or more substances from one or more of the following groups: organic polymers, aldehyde tanning agents, sulfone tanning agents, resin tanning agents, phenol tanning agents, fatliquoring agents, vegetable tanning agents, dyes and pigments.
    Type: Application
    Filed: August 14, 2003
    Publication date: May 18, 2006
    Applicant: Basf Aktiengesellschaft
    Inventors: Stephan Hueffer, Stefan Schroeder, Einhard Wagner, Thorsten Radler, Karl Vill