IP Library › Granted Patent US 8,658,740
Granted Patent B2
US 8,658,740 · App. 12/124,184 · Granted Feb 25, 2014

Reduced fuming fluoropolymer

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Quick Facts
Patent No.
US 8,658,740
App. No.
12/124,184
Granted
Feb 25, 2014
Kind
B2
Abstract

The present invention relates to the reduction of oligomer content of melt-processible fluoropolymer so that the fluoropolymer has at least 25 ppm less oligomer than the as-polymerized fluoropolymer.

Claims (1)

1. Melt-processible fluoropolymer having at least 25 ppm less oligomer content than said fluoropolymer as-polymerized made by melting said fluoropolymer, creating an infinite surface of said melted fluoropolymer, contacting said infinite surface with a gas stream, and devolatilizing the resultant molten fluoropolymer, said fluoropolymer as-polymerized being free of alkali and alkaline earth metal, wherein said oligomer having a formula C x F y , wherein x is at least 11 and y is at least 24.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Apr 4, 2018
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: THE CHEMOURS COMPANY FC, LLC
Reel/Frame 045845/0913 →
SECURITY INTEREST Recorded Apr 4, 2018
From: THE CHEMOURS COMPANY FC, LLC
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 045846/0011 →
SECURITY AGREEMENT Recorded Jun 10, 2015
From: THE CHEMOURS COMPANY FC LLC; THE CHEMOURS COMPANY TT, LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 035839/0675 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2015
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: THE CHEMOURS COMPANY FC, LLC
Reel/Frame 035432/0023 →