Patents by Inventor Palle Chris Nielsen

Palle Chris Nielsen 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).

  • Diarylide yellow pigments
    Patent number: 8034174
    Abstract: A diarylide yellow pigment formed by a coupling reaction of a benzidine and a mixture comprising 4-chloro-2,5-dimethoxy-acetoacetanilide and 2,4-dimethyl-acetoacetanilide. The diarylide yellow pigment has a desirable reddish shade than C.I. Pigment Yellow 83, exists in a solid solution, and contains fewer aromatic amine impurities.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: October 11, 2011
    Assignee: Sun Chemical Corporation
    Inventors: Russell Schwartz, Ulrik Cassias, Palle Chris Nielsen
  • Diarylide Yellow Pigments
    Publication number: 20110061564
    Abstract: A diarylide yellow pigment formed by a coupling reaction of a benzidine and a mixture comprising 4-chloro-2,5-dimethoxy-acetoacetanilide and 2,4-dimethyl-acetoacetanilide. The diarylide yellow pigment has a desirable reddish shade than C.I. Pigment Yellow 83, exists in a solid solution, and contains fewer aromatic amine impurities.
    Type: Application
    Filed: April 17, 2009
    Publication date: March 17, 2011
    Inventors: Russell Schwartz, Ulrik Cassias, Palle Chris Nielsen
  • Process for preparing a printing ink
    Publication number: 20090000512
    Abstract: A printing ink and process for preparing by mixing an aqueous pigment slurry with at least one non-pigment ink component immiscible in water to form a flush cake which is processed to a finished printing ink.
    Type: Application
    Filed: May 30, 2006
    Publication date: January 1, 2009
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Bjorn Erik Haabegaard Larsen, Robert Pedersen, Palle Chris Nielsen, Steffen Carrock Olsen