High structure carbon blacks

Patent metadata

Field	Value
Publication number	US-9056994-B2
Application number	US-201313940945-A
Country	US
Kind code	B2
Filing date	Jul 12, 2013
Priority date	Jul 13, 2012
Publication date	Jun 16, 2015
Grant date	Jun 16, 2015

Abstract

Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN≧170 mL/100 g; and STSA ranging from 160 to 220 m 2 /g. The carbon black can also have the following properties: OAN≧170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.

First claim

The invention claimed is:

1. A carbon black having the following properties:
OAN≧170 mL/100 g;
STSA ranging from 160 to 220 m 2 /g; and
BET surface area ranging from 190 to 275 m 2 /g,
wherein the carbon black is in the form of a pellet.

2. The carbon black of claim 1 , wherein the OAN ranges from 170 to 220 m 2 /g.

3. The carbon black of claim 1 , wherein the OAN ranges from 170 to 210 m 2 /g.

4. The carbon black of claim 1 , wherein the BET surface area ranges from 200 to 270 m 2 /g.

5. The carbon black of claim 1 , wherein the BET surface area ranges from 200 to 260 m 2 /g.

6. The carbon black of claim 1 , wherein the carbon black further has a COAN of at least 120 m 2 /g.

7. The carbon black of claim 1 , wherein the carbon black further has a COAN of at least 130 m 2 /g.

8. The carbon black of claim 1 , wherein the carbon black further has a ratio of OAN/COAN ranging from 1.30 to 1.50.

9. The carbon black of claim 1 , wherein the carbon black has a ratio of STSA/BET surface area ranging from 0.7 to 1.

10. The carbon black of claim 1 , wherein the carbon black has a ratio of STSA/BET surface area ranging from 0.7 to 0.9.

11. The carbon black of claim 1 , wherein the carbon black is a furnace black.

Assignees

• Cabot Corp

Inventors

• Dikan Andrew P
• Rouanet Stephane F
• Clarke Heather E
• Mackay Bruce E
• Pierre Danny

Classifications

• Y10T428/2982

  Particulate matter [e.g., sphere, flake, etc.] · CPC title

• B01J2219/00177

  controlling the pH · CPC title

• C09C1/565

  comprising an oxidative treatment with oxygen, ozone or oxygenated compounds, e.g. when such treatment occurs in a region of the furnace next to the carbon black generating reaction zone · CPC title

• C09C1/50

  Furnace black {; Preparation thereof (separation or recovery C09C1/487)} · CPC title

• C01P2006/19

  Oil-absorption capacity, e.g. DBP values · CPC title