IP Library › Granted Patent US 8,309,641
Granted Patent B2
US 8,309,641 · App. 13/192,554 · Granted Nov 13, 2012

Curable fluoroelastomer compositions

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Quick Facts
Patent No.
US 8,309,641
App. No.
13/192,554
Granted
Nov 13, 2012
Kind
B2
Abstract

Disclosed herein is a curable composition comprising a curable fluoroelastomer, a curative and an acid acceptor selected from the group consisting of a hydrous bismuth oxide nitrate compound and bismuth oxide. Cured articles made therefrom are resistant to volume swell in acids, coolant and in biofuel.

Claims (9)

1. A curable fluoroelastomer composition comprising:

A) a curable fluoroelastomer;

B) a curative; and

C) an acid acceptor selected from the group consisting of a hydrous bismuth oxide nitrate compound and bismuth oxide.

2. The curable fluoroelastomer composition of claim 1 wherein said acid acceptor is a hydrous bismuth oxide nitrate compound.

3. The curable fluoroelastomer composition of claim 1 wherein said acid acceptor is bismuth oxide.

4. The curable fluoroelastomer composition of claim 1 wherein said curative is a polyhydroxy compound.

5. The curable fluoroelastomer composition of claim 1 wherein said curative is a diamine.

6. The curable fluoroelastomer composition of claim 1 wherein said curative is an organic peroxide.

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 →