Patent 7763680 was granted and assigned to E.I. Du Pont De Nemours And Company on July, 2010 by the United States Patent and Trademark Office.
Core/shell polymer is provided wherein the core comprises non-melt flowable PTFE and the shell comprises melt-fabricable perfluoropolymer, the core/shell polymer providing a thixotropic melt blend and improved physical properties as compared to the melt-fabricable perfluoropolymer by itself.