IP Library › Granted Patent US 7,575,733
Granted Patent B2
US 7,575,733 · App. 11/841,539 · Granted Aug 18, 2009

Plasma-treated carbon fibrils and method of making same

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Quick Facts
Patent No.
US 7,575,733
App. No.
11/841,539
Granted
Aug 18, 2009
Kind
B2
Abstract

A method of treating carbon fibrils and carbon fibril structures such as assemblages, aggregates and hard porous structures with a plasma to effect an alteration of the surface or structure of the carbon fibril or fibrils. The method can be utilized to functionalize, prepare for functionalization or otherwise modify the fibril surface via a “dry” chemical process.

Claims (1)

1. A method for chemically modifying the surface of a carbon fibril, comprising the step of exposing said fibril to a plasma selected from the group consisting of fluorine, oxygen, ammonia, helium, nitrogen and hydrogen.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Jan 21, 2021
From: WHITE OAK GLOBAL ADVISORS, LLC, AS ADMINISTRATIVE AGENT
To: HYPERION CATALYSIS INTERNATIONAL
Reel/Frame 055058/0494 →
SECURITY AGREEMENT Recorded Sep 17, 2013
From: HYPERION CATALYSIS INTERNATIONAL
To: PDL BIOPHARMA, INC.
Reel/Frame 031227/0086 →
SECURITY AGREEMENT Recorded Aug 16, 2013
From: HYPERION CATALYSIS INTERNATIONAL
To: WHITE OAK GLOBAL ADVISORS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 031030/0001 →