Patents by Inventor Ingeborg Grempels

Ingeborg Grempels 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).

  • Agent for blocking polyisocyanates, polyisocyanates blocked therewith, and coating compositions comprising these blocked polyisocyanates
    Patent number: 6288176
    Abstract: An agent for the single-stage full blocking of polyisocyanates comprises or consists of an alcohol mixture A) comprising a) furfuryl alcohol or substituted furfuryl alcohols in an amount corresponding to from 60 to 90, in particular from 65 to 85, mol % of hydroxyl groups and b) at least one monoalcohol in an amount corresponding to at least 2 mol % of hydroxyl groups, based in each case on the total amount of hydroxyl groups in components a) and b). In addition, the alcohol mixture A) may also include at least one aliphatic polyol c) of low molecular mass with a functionality of three and/or more in an amount corresponding to at least 5 mol % of hydroxyl groups, based on the total amount of hydroxyl groups in components a), b) and c). In this case component b) can have a molecular weight of <163 g/mol.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: September 11, 2001
    Assignee: BASF Coatings AG
    Inventors: Bing Hsieh, Silke Przybilla, Ingeborg Grempels, Walter Jouck, Hardy Reuter, Dagmar Schemschat, Oliver Johannpoetter, Walburga Kathmann, Adam Stals