Patents by Inventor Karl H. Dorner

Karl H. Dorner 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).

  • Aluminum offset coil, and method for its production
    Patent number: 4715903
    Abstract: An aluminum offset coil, having a surface zone of a predominantly recrystallized globular, fine grain structure, and a core zone of a greatly work-hardened structure, for use in offset printing plates, and a process for its preparation.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: December 29, 1987
    Assignee: Vereinigte Aluminium-Werke Aktiengesellschaft
    Inventors: Wolfgang V. Asten, Karl H. Dorner, Hartmut Scheel, Volker Wurstle
  • Stabilizer-containing reactive components for pu-foams, new stabilizers and a process for producing these stabilizers
    Patent number: 4608399
    Abstract: The invention relates to stabilizer-containing reactive components for the production of polyurethane foams having little or no tendency towards core discoloration which are characterized by a stabilizing addition of monomeric and/or oligomeric derivatives of the diphenylamine series, including the phenothiazine series. The invention also relates to new stabilizers of the diphenylamine and/or phenothiazine series and to a process for their production, characterized in that aromatic amines of the diphenylamine and/or phenothiazine series are reacted with bifunctional halogen derivatives, diols, bis-ethers or bis-esters or with bis-olefins formed therefrom at elevated temperatures in the presence of strong acids and the amines are optionally further alkylated.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: August 26, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Hans-Walter Illger, Karl H. Dorner
  • Stabilizer-containing reactive components for pu-foams, new stabilizers and a process for producing these stabilizers
    Patent number: 4565834
    Abstract: The invention relates to stabilizer-containing reactive components for the production of polyurethane foams having little or no tendency towards core discoloration which are characterized by a stabilizing addition of monomeric and/or oligomeric derivatives of the diphenylamine series, including the phenothiazine series. The invention also relates to new stabilizers of the diphenylamine and/or phenothiazine series and to a process for their production, characterized in that aromatic amines of the diphenylamine and/or phenothiazine series ae reacted with bifunctional halogen derivatives, diols, bis-ethers or bis-esters or with bis-olefins formed therefrom at elevated temperatures in the presence of strong acids and the amines are optionally further alkylated.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: January 21, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Hans-Walter Illger, Karl H. Dorner
  • Stabilizer-containing reactive components for PU-foams, new stabilizers and a process for producing these stabilizers
    Patent number: 4430452
    Abstract: The invention relates to stabilizer-containing reactive components for the production of polyurethane foams having little or no tendency towards core discoloration which are characterized by a stabilizing addition of monomeric and/or oligomeric derivatives of the diphenylamine series, including the phenothiazine series. The invention also relates to new stabilizers of the diphenylamine and/or phenothiazine series and to a process for their production, characterized in that aromatic amines of the diphenylamine and/or phenothiazine series are reacted with bifunctional halogen derivatives, diols, bis-ethers or bis-esters or with bis-olefins formed therefrom at elevated temperatures in the presence of strong acids and the amines are optionally further alkylated.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: February 7, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Hans-Walter Illger, Karl H. Dorner