Patent ID: 11879025
Assignee: INHANCE TECHNOLOGIES, LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 13:
14. A method for removing perfluorinated compounds, the method comprising the steps of:
(a) providing a fluoropolymer material in a chamber;
(b) providing an anaerobic environment in the chamber;
(c) providing a fluorination gas in the chamber after step (b), thereby exposing the fluoropolymer material to the fluorination gas to produce a processed fluoropolymer material;
(d) withdrawing the fluorination gas from the chamber; and
(e) withdrawing the processed fluoropolymer from the chamber,, wherein the fluoropolymer material comprises the perfluorinated compounds used in the manufacture of the fluoropolymer,, wherein the fluoropolymer material is provided as part of a workpiece,, wherein an amount of the perfluorinated compounds in the processed fluoropolymer material is less than 300 ppb,, wherein the perfluorinated compounds comprise perfluorooctanoic acid (PFOA) and an amount of the PFOA in the processed fluoropolymer material is less than 1.1 wt. % the amount of the PFOA in the fluoropolymer material.