Patents by Inventor Thomas Dolce

Thomas Dolce 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).

  • Compatible LCP blends via direct esterification
    Patent number: 5182334
    Abstract: A process for making a compatible LCP blend by reactively esterifying an LCP having a carboxylic acid or ester end group with either PPO or PPS, or derivatives thereof, using a catalytic mixture containing boric acid and polyphosphoric acid or sulfuric acid. The carboxylic functionality on the LCP reacts with the hydroxyl end group on the PPO or the thiol end group on the PPS to form an ester or thioester linkage. The two polymers to be blended are melt mixed with the catalyst mixture and extruded.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: January 26, 1993
    Assignee: Hoechst Celanese Corp.
    Inventors: Paul Chen, Sr., Vincent Sullivan, Thomas Dolce, Mike Jaffe