Patents by Inventor Ralf STROHMEIER

Ralf STROHMEIER 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 preparing liquid compositions of etherified melamine formaldehyde resins
    Patent number: 11739235
    Abstract: The present invention relates to a process for preparing liquid compositions of etherified melamine formaldehyde resins, namely melamine formaldehyde resins etherified with a primary C1-C6-alkanol, which have low formaldehyde contents. The invention also relates to such liquid compositions of etherified melamine formaldehyde resins having a content of free formaldehyde of less than 0.3% by weight. The liquid compositions of etherified melamine formaldehyde resins are useful as crosslinking agents in coating compositions.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: August 29, 2023
    Assignee: BASF SE
    Inventors: Stephan Weinkoetz, Dieter Weilacher, Guenter Scherr, Jens Steinbeck, Evelyn Fuchs, Ralf Strohmeier, Daniel Flojhar
  • PROCESS FOR PREPARING LIQUID COMPOSITIONS OF ETHERIFIED MELAMINE FORMALDEHYDE RESINS
    Publication number: 20200095453
    Abstract: The present invention relates to a process for preparing liquid compositions of etherified melamine formaldehyde resins, namely melamine formaldehyde resins etherified with a primary C1-C6-alkanol, which have low formaldehyde contents. The invention also relates to such liquid compositions of etherified melamine formaldehyde resins having a content of free formaldehyde of less than 0.3% by weight. The liquid compositions of etherified melamine formaldehyde resins are useful as crosslinking agents in coating compositions.
    Type: Application
    Filed: December 20, 2017
    Publication date: March 26, 2020
    Applicant: BASF SE
    Inventors: Stephan WEINKOETZ, Dieter WEILACHER, Guenter SCHERR, Jens STEINBECK, Evelyn FUCHS, Ralf STROHMEIER, Daniel FLOJHAR