Patents by Inventor Wilhelmina Verhoef-Van Wijk

Wilhelmina Verhoef-Van Wijk 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).

  • Publication number: 20060069220
    Abstract: Process for preparing an alkoxylated alcohol comprising reacting a starting monohydroxy alcohol selected from secondary alcohols, tertiary alcohols and mixtures thereof with an alkylene oxide in the presence of hydrogen fluoride and a boron-containing compound comprising at least one B—O bond. The alcohol may also be a primary monohydroxy alcohol when the boron containing compound is boric acid or boric acid anhydride or a mixture thereof, or may be a primary mono hydroxy alcohol, except a C14/C15 alcohol when reacted with ethylene oxide in the presence of HF and trimethyl borate. A phenol may be alkoxylated in the same way instead of the mono-hydroxyalcohol.
    Type: Application
    Filed: September 21, 2005
    Publication date: March 30, 2006
    Inventors: Jan Hermen Meurs, Wilhelmina Verhoef-Van Wijk, Arie Van Zon
  • Publication number: 20050159601
    Abstract: Mixed bis-imine pyridine ligands of formula (I), wherein Z1, which is different from Z2, is an optionally substituted aryl group; and Z2 comprises an optionally substituted heterohydrocarbyl moiety, or an optionally substituted aryl group in combination with a metal, said optionally substituted aryl group being ?-co-ordinated to the metal; mixed bis-imine pyridine complexes comprising a ligand of formula (I); mixed ionic bis-imine pyridine complexes comprising a ligand of formula (I); and processes for the production of alpha olefins from ethylene, using said complexes.
    Type: Application
    Filed: March 15, 2005
    Publication date: July 21, 2005
    Inventors: Eric De Boer, Harry Van Der Heijden, Wilhelmina Verhoef-Van Wijk, Arie Van Zon