Patents by Inventor Ulrich Eiden

Ulrich Eiden 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).

  • Method for the vinylation of amides
    Patent number: 9249094
    Abstract: A process for preparing an N-vinyl compound by vinylating a compound having at least one nitrogen atom (referred to hereinafter as compound for short) with acetylene, wherein before the vinylation, the compound is reacted with an alkali metal hydroxide in a reaction zone and the mean residence time of the alkali metal hydroxide and of the compound in the reaction zone is less than 6 minutes.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: February 2, 2016
    Assignee: BASF SE
    Inventors: Regina Vogelsang, Stefan Kaeshammer, Wolfgang Staffel, Ulrich Eiden, Alexandra Brand, Lembit Tuttelberg
  • METHOD FOR THE VINYLATION OF AMIDES
    Publication number: 20100249434
    Abstract: A process for preparing an N-vinyl compound by vinylating a compound having at least one nitrogen atom (referred to hereinafter as compound for short) with acetylene, wherein before the vinylation, the compound is reacted with an alkali metal hydroxide in a reaction zone and the mean residence time of the alkali metal hydroxide and of the compound in the reaction zone is less than 6 minutes.
    Type: Application
    Filed: December 8, 2008
    Publication date: September 30, 2010
    Applicant: BASE SE
    Inventors: Regina Vogelsang, Stefan Kaeshammer, Wolfgang Staffel, Ulrich Eiden, Alexandra Brand, Lembit Tuttelberg
  • Method for processing pyrollidone and n-vinyl pyrollidone residues
    Patent number: 6888006
    Abstract: A process for working up residues from the preparation of pyrrolidone and/or N-vinylpyrrolidone comprises subjecting the residues to a thermolysis.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: May 3, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Helfert, Martin Schmidt-Radde, Gerhard Laqua, Ulrich Eiden, Stephan Scholl, Christoph Übler
  • Method for processing pyrollidone and n-vinyl pyrollidone residues
    Publication number: 20030105338
    Abstract: A process for working up residues from the preparation of pyrrolidone and/or N-vinylpyrrolidone comprises subjecting the residues to a thermolysis.
    Type: Application
    Filed: November 7, 2002
    Publication date: June 5, 2003
    Inventors: Herbert Helfert, Martin Schmidt-Radde, Gerhard Laqua, Ulrich Eiden, Stephan Scholl, Christoph Ubler
  • Fixing large zeolite and zeolite-like molecular sieve crystals on moldings
    Patent number: 5413975
    Abstract: Large zeolite and zeolite-like molecular sieve crystals of from 3 to 500 .mu.m are fixed on moldings by a process in which an adhesion promoter is used or the moldings are softened.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: May 9, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Mueller, Wolfgang Hoelderich, Hans D. Schaefer, Ulrich Eiden, Norbert Woessner
  • Preparation of methyl formate
    Patent number: 5401873
    Abstract: Preparation of methyl formate by the reaction of carbon monoxide and methanol under conditions of elevated pressure and temperature in the presence of an alkali metal methylate, in whichA) the starting materials are mixed in a mixing zone, are allowed to react partially, and the reaction solution is saturated with CO andB) the reaction is allowed to reach completion in one or more secondary reaction zones without the addition of further starting materials.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: March 28, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Zehner, Klaus Bittins, Wilhelm Haarde, Ulrich Eiden, Dietrich Wolff, Manfred Herr, Leopold Hupfer