The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2013
Filed:
Dec. 18, 2009
Kenneth Wayne Leffew, Kennett Square, PA (US);
Ralph Birchard Lloyd, Fayetteville, NC (US);
Charles Joseph Noelke, Pinehurst, NC (US);
Kenneth Wayne Leffew, Kennett Square, PA (US);
Ralph Birchard Lloyd, Fayetteville, NC (US);
Charles Joseph Noelke, Pinehurst, NC (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A process for making an aqueous dispersion of fluorinated ionomer particles by providing dispersed particulate of fluorinated ionomer in an aqueous polymerization medium and polymerizing at least one fluorinated monomer having an ionic group in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluorinated ionomer.