Patents by Inventor Kha Carl Dang Nguyen

Kha Carl Dang Nguyen 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 preparation of alkoxylated alkylamines/alkyl ether amines with peaked distribution
    Patent number: 8049039
    Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 1, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis
  • PROCESS FOR PREPARATION OF ALKOXYLATED ALKYLAMINES/ALKYL ETHER AMINES WITH PEAKED DISTRIBUTION
    Publication number: 20090209788
    Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.
    Type: Application
    Filed: June 21, 2007
    Publication date: August 20, 2009
    Applicant: AKZO NOBEL N.V.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis