IP Library Granted Patent US 8,088,917
Granted Patent B2
US 8,088,917 · App. 12/128,893 · Granted Jan 3, 2012

Ionic liquids

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Quick Facts
Patent No.
US 8,088,917
App. No.
12/128,893
Granted
Jan 3, 2012
Kind
B2
Abstract

The invention relates to an ionic liquid composition and a method for preparing the ionic liquid. The ionic liquid comprises a cation containing the Formula I, as herein disclosed, and wherein: n is 2, R 1 is selected from the group consisting of: H, C 1 -C 12 alkyl, aryl or together with R 2 may form a heterocyclic ring, and R 2 is selected from the group consisting of: H, C 1 -C 12 alkyl, aryl or together with R 1 may form a heterocyclic ring, and R 3 is selected from the group consisting of hydrogen and C 1 -C 12 alkyl, and wherein R 1 and R 2 are not simultaneously selected from hydrogen.

Claims (14)

1. An ionic liquid comprising a cation according to Formula I:

wherein:

n is 2,

R 1 is selected from the group consisting of: H, C 1 -C 12 alkyl, aryl or together with R 2 may form a heterocyclic ring, and

R 2 is selected from the group consisting of: H, C 1 -C 12 alkyl, aryl or together with R 1 may form a heterocyclic ring, and

R 3 is selected from the group consisting of hydrogen and C 1 -C 12 alkyl, and wherein R 1 and R 2 are not simultaneously selected from hydrogen; and

an anion, wherein the anion is dicyanamide.

2. The ionic liquid according to claim 1 , wherein R 3 is hydrogen.

3. The ionic liquid according to claim 1 , wherein R 1 is a methyl group.

4. The ionic liquid according to any one of claim 1 , 2 or 3 , wherein R 2 is a butyl group.

5. The ionic liquid according to any one of claim 1 , 2 or 3 , which is 1-butyl-1-methyl-azepanium dicyanamide.

6. The ionic liquid according to any one of claim 1 , 2 or 3 , which is 6-azonia-spiro[5,6]dodecane dicyanamide.

7. The ionic liquid according to claim 4 which is 1-butyl-1-methyl-azepanium dicyanamide.

8. The ionic liquid according to claim 4 , which is 6-azonia-spiro[5,6]dodecane dicyanamide.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Nov 10, 2011
From: DEUTSCHE BANK AG NEW YORK BRANCH
To: INVISTA NORTH AMERICA S.A.R.L.
Reel/Frame 027211/0298 →
SECURITY AGREEMENT Recorded Mar 19, 2009
From: INVISTA NORTH AMERICA S.A.R.L.
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 022416/0849 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2008
From: FORSYTH, STEWART; SEDDON, KENNETH R.; WHISTON, KEITH
To: INVISTA NORTH AMERICA S.A R.L.
Reel/Frame 021141/0750 →