Patents by Inventor Udo Garrelts

Udo Garrelts 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).

  • Method for the Production of Double Metal Cyanide Complex Catalysts
    Publication number: 20080292526
    Abstract: Process for preparing double metal cyanide catalysts of the general formula (I) M2a[M1(CN)rXt]b ??(I) where M2 is preferably Co(III) or Fe(III), and M1 is preferably Zn(II), X is a group other than cyanide which forms a coordinate bond to M1 and is selected from the group consisting of carbonyl, cyanate, isocyanate, nitrile, thiocyanate and nitrosyl, a, b, r, t are integers which are selected so that the compound is electrically neutral, by reacting a) a cyanometallic acid of the general formula (II) Hw[M1(CN)r(X)t] where M1 and X are as defined above, r and t are as defined above and w is selected so that the compound is electrically neutral, with b) a readily protolyzable metal compound (IIIa) M2Rw and/or (IIIb) M2RuYv, where M2 is as defined above, the groups R are identical or different and are each the anion of a very weak protic acid having a pKa of ?20, and Y is the anion of an inorganic mineral acid or a moderately strong to strong organic acid having a pKa of from ?10 to +10, w correspon
    Type: Application
    Filed: May 2, 2006
    Publication date: November 27, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Edward Bohres, Michael Stosser, Ludwig Volkel, Raimund Ruppel, Eva Baum, Norbert Wagner, Jorg Sundermeyer, Udo Garrelts, Michael Zirnstein