Patents by Inventor Mathias Hopp

Mathias Hopp 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).

  • Process for producing polyhydroxy ethers and unsymmetrical polyhydroxy ethers obtainable with the process
    Patent number: 6121499
    Abstract: A process for producing polyhydroxy ethers having the formula (I) (HO).sub.(w--M) W(OV).sub.m, in which W represents an organic group and OV a structural element containing hydroxyl groups, having the formula (III) ##STR1## A multifunctional alcohol W(OH).sub.w (II) is reacted with an .alpha.,.beta.-unsaturated carbonyl compound XCH.dbd.CY--CZ.dbd.O (IV) and formaldehyde in the presence of a base. The .alpha., .beta.-unsaturated carbonyl compound (IV) and the remaining quantities of formaldehyde, multifunctional alcohol (II) and base are added continuously or periodically to an aqueous solution or suspension containing at least 10 mole % of the multifunctional alcohol (II), at least 10 to 70 mole % of the formaldehyde and at least 10 mole % of the base. Preferred multifunctional alcohols (II) are pentaerythritol, TMP and TME. Preferred carbonyl compounds (IV) are acrolein and .alpha.-alkylacrolein. New asymmetric polyhydroxy ethers are also disclosed.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: September 19, 2000
    Assignee: Degussa Aktiengesellschaft
    Inventors: Marcus Morawietz, Dietrich Arntz, Mathias Hopp
  • Copolymers useful for producing cast glass and thermally dimensionally stable molding materials
    Patent number: 5880235
    Abstract: The invention relates to copolymers for producing cast glass or thermally dimensionally stable formed materials.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: March 9, 1999
    Assignee: Agomer Gesellschaft mit beschrankter Haftung
    Inventors: Helmut Schwind, Dirk Hauch, Thomas Hasskerl, Klaus Dorn, Mathias Hopp