IP Library › Granted Patent US 8,088,952
Granted Patent B2
US 8,088,952 · App. 12/374,411 · Granted Jan 3, 2012

Ionic bronsted acid

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Quick Facts
Patent No.
US 8,088,952
App. No.
12/374,411
Granted
Jan 3, 2012
Kind
B2
Abstract

A new ionic compound is provided that is derived from N,N-dimethylaniline and pentafluorophenol in amounts such that there are at least 2 equivalents of pentafluorophenol per equivalent of the N,N-dimethylaniline.

Claims (3)

1. An ionic compound of the formula:

2. A compound derived from at least N,N-dimethylaniline and pentafluorphenol in amounts such that there are at least two equivalents of pentafluorophenol per equivalent of the N,N-dimethylaniline.

3. A method of making the ionic compound of claim 1 , comprising combining at least N,N-dimethylaniline and pentafluorphenol in amounts such that there are at least two equivalents of pentafluorophenol per equivalent of the N,N-dimethylaniline.

Assignments (8)
RELEASE OF SECURITY INTEREST SUPPLEMENT NO. 1, RECORDED AT REEL/FRAME 063237/0252 Recorded Feb 2, 2026
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: W. R. GRACE & CO.-CONN.
Reel/Frame 074612/0939 →
NOTES SECURITY INTEREST Recorded Jan 29, 2026
From: W. R. GRACE & CO.-CONN.; ADVANCED REFINING TECHNOLOGIES LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 074532/0229 →
SECURITY AGREEMENT (NOTES) Recorded Aug 19, 2025
From: W. R. GRACE & CO.-CONN.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 072520/0653 →
SECURITY INTEREST Recorded Apr 2, 2023
From: W. R. GRACE & CO.-CONN.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 063237/0252 →
SECURITY INTEREST Recorded Apr 2, 2023
From: W. R. GRACE & CO.-CONN.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 063237/0262 →
SECURITY INTEREST Recorded Feb 17, 2023
From: W.R. GRACE & CO.-CONN.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 062792/0510 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2018
From: ALBEMARLE CORPORATION
To: W. R. GRACE & CO-CONN.
Reel/Frame 045946/0786 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2009
From: LUO, LUBIN; WANG, ZHIKE; DIEFENBACH, STEVEN P.; WU, XIAO
To: ALBEMARLE CORPORATION
Reel/Frame 023221/0930 →