Patents by Inventor Jenny Qinhong Ye

Jenny Qinhong Ye 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 the preparation of ketimine curing agents
    Patent number: 6573357
    Abstract: The present invention relates to a process for the production of aliphatic ketimines having a polyalkylenepolyamine content of less than 1% by weight from the corresponding aliphatic ketones and polyalkylenepolyamines comprising the steps of: (a) forming a mixture of said aliphatic ketones and said polyalkylenepolyamines wherein the weight ratio of said ketone to said polyalkylenepolyamine is in the range of about 3.0:1 to about 10:1; (b) heating said mixture to a refluxing temperature between about 170° F. and 230° F. while continuously removing water to form the corresponding aliphatic ketimine; and (c) isolating said aliphatic ketimine.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: June 3, 2003
    Assignee: Resolution Performance Products LLC
    Inventors: Jenny Qinhong Ye, Michael Earl Beasley