Patents by Inventor G{umlaut over (u)}nther Jeromin

G{umlaut over (u)}nther Jeromin 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 the production of aryl carbonates
    Patent number: 6175017
    Abstract: A process for the preparation of carbonates containing aromatic ester groups is disclosed. The process entails reacting aromatic monohydroxy componds with phosgene or with chlorocarbonic acid esters of aromatic monohydroxy compounds at a temperature of 50 to 350° C. and in the presence of active carbon as catalyst.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: January 16, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Norbert Schön, G{umlaut over (u)}nther Jeromin