Electrostatic dissipative PFA blends and their use

JP2026508872APending Publication Date: 2026-03-13THE CHEMOURS CO FC LLC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-01
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing fluid handling systems for semiconductor manufacturing require electrostatically dissipative materials that are transparent and clean, as carbon black, traditionally used for dissipation, is undesirable due to cleanliness issues and the need for optical transparency.

Method used

Polymer blends of perfluoroalkoxyalkanes (PFAs) and sulfonated fluoropolymers are developed, which are electrostatically dissipative, transparent, and do not contain carbon black, achieving electrostatic dissipation through the use of sulfonated fluoropolymers like Nafion®, with compositions ranging from 15% to 99% by weight.

Benefits of technology

The blends provide clean, transparent conduits and coatings with effective electrostatic dissipation, suitable for semiconductor manufacturing, while avoiding the drawbacks of carbon black, and maintaining material integrity and optical transparency.

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Abstract

The composition comprises a polymer blend comprising at least 15% by weight of a sulfonated fluoropolymer and at least 50% by weight of a perfluoroalkoxyalkane. A method for forming the polymer blend comprises blending a sulfonated fluoropolymer with a perfluoroalkoxyalkane to form a polymer composition. The polymer composition comprises at least 15% by weight of a sulfonated fluoropolymer and at least 50% by weight of a perfluoroalkoxyalkane. This method also comprises extruding the polymer composition to form a polymer blend. A method for transporting a flammable fluid comprises flowing the flammable fluid through a conduit formed by a polymer blend comprising at least 15% by weight of a sulfonated fluoropolymer and at least 50% by weight of a perfluoroalkoxyalkane. The polymer blend is electrostatically dissipative and transparent. The article comprises a polymer blend of at least 15% by weight of a sulfonated fluoropolymer and at least 50% by weight of a perfluoroalkoxyalkane.
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Citation Information

Patent Citations

  • US63/449,458