IP Library › Granted Patent US 7,063,808
Granted Patent B1
US 7,063,808 · App. 10/819,742 · Granted Jun 20, 2006

Lignosulfonic acid-doped polyaniline composites with carbon allotropes

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Quick Facts
Patent No.
US 7,063,808
App. No.
10/819,742
Granted
Jun 20, 2006
Kind
B1
Abstract

The present invention relates to a composite made up of a conductive carbon material and lignosulfonic acid-doped polyaniline, wherein the composite possesses a conductivity greater than the conductivity of the polyaniline and the conductive carbon material. It also relates to a method of preparing a conductive carbon material-lignosulfonic acid-doped polyaniline composite by polymerizing aniline in the presence of the conductive carbon material and lignosulfonate. In addition, this invention relates to a composite made up of a conductive carbon material and sulponated asphalt-polyaniline, wherein the composite possesses a conductivity greater than the conductivity of the conductive carbon material and the sulponated asphalt-polyaniline. It also relates to a method of preparing a conductive carbon material-sulponated asphalt-polyaniline composite by polymerizing aniline in the presence of the conductive carbon material and the sulfonated asphalt.

Claims (7)

1. A composite consisting essentially of a conductive carbon material and lignosulfonic acid-doped polyaniline, wherein said composite possesses a conductivity greater than the conductivity of said polyaniline, and wherein the conductive carbon material comprises graphite comprising at least 60 weight percent of the composite.

2. The composite of claim 1 wherein the graphite comprises at least about 70 weight percent of the composite.

3. The composite of claim 1 wherein the graphite comprises at least about 80 weight percent of the composite.

4. The composite of claim 1 wherein the graphite comprises at least about 90 weight percent of the composite.

5. A method of preparing a conductive carbon material-lignosulfonic acid-doped polyaniline composite comprising polymerizing aniline in the presence of materials consisting essentially of the conductive carbon material and lignosulfonate, wherein the conductive carbon material comprises graphite comprising at least 60 weight percent of the composite.

6. The method of claim 5 wherein the graphite comprises at least about 70 weight percent of the composite.

7. The method of claim 6 wherein the graphite comprises at least about 80 weight percent of the composite.

Assignments (11)
RELEASE OF SECURITY INTERESTS IN PATENTS RECORDED AT REEL 027522, FRAME 0154. Recorded Jun 24, 2025
From: WELLS FARGO CAPITAL FINANCE, LLC, AS ADMINISTRATIVE AGENT
To: AVIENT CORPORATION (F/K/A POLYONE CORPORATION); GSDI SPECIALTY DISPERSIONS, INC. (F/K/A GAYSON SILICON DISPERSIONS, INC.); THE COLORMATRIX CORPORATION; COLORMATRIX HOLDINGS, INC.
Reel/Frame 071711/0354 →
CHANGE OF NAME Recorded Jul 13, 2020
From: POLYONE CORPORATION
To: AVIENT CORPORATION
Reel/Frame 053197/0141 →
SECURITY AGREEMENT Recorded Nov 19, 2015
From: POLYONE CORPORATION; COLORMATRIX GROUP, INC.; COLORMATRIX HOLDINGS, INC.; THE COLORMATRIX CORPORATION; GAYSON SILICONE DISPERSIONS, INC.; POLYONE DESIGNED STRUCTURES AND SOLUTIONS LLC
To: CITIBANK, N.A,, AS ADMINISTRATIVE AGENT
Reel/Frame 037146/0724 →
RELEASE (REEL 027456 / FRAME 0779) Recorded Nov 18, 2015
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
To: POLYONE CORPORATION
Reel/Frame 037129/0199 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL 027450 FRAME 0907 Recorded Feb 28, 2013
From: BANK OF AMERICA, N.A., AS AGENT
To: POLYONE CORPORATION
Reel/Frame 029900/0240 →
SECURITY AGREEMENT Recorded Dec 29, 2011
From: POLYONE CORPORATION
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 027456/0779 →
SECURITY AGREEMENT Recorded Dec 28, 2011
From: POLYONE CORPORATION
To: BANK OF AMERICA, N.A.
Reel/Frame 027450/0907 →
SECURITY AGREEMENT Recorded Dec 23, 2011
From: POLYONE CORPORATION; GAYSON SILICONE DISPERSIONS, INC.; COLORMATRIX CORPORATION, THE; COLORMATRIX HOLDINGS, INC.
To: WELLS FARGO CAPITAL FINANCE, LLC
Reel/Frame 027522/0154 →
RELEASE OF SECURITY INTEREST Recorded Feb 23, 2007
From: U.S. BANK TRUST NATIONAL ASSOCIATION; PATRICK J. CROWLEY, TRUSTEE
To: POLYONE CORPORATION
Reel/Frame 018923/0081 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2005
From: GEO TECH CHEMICAL COMPANY LLC
To: POLYONE CORPORATION
Reel/Frame 016522/0750 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 28, 2004
From: VISWANATHAN, TITO
To: GEOTECH CHEMICAL COMPANY LLC
Reel/Frame 015189/0922 →