The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2003
Filed:
Jan. 29, 1998
Applicant:
Inventors:
Katsu Iida, Mobara, JP;
Mitsuyuki Sasaki, Chiba, JP;
Makoto Takahashi, Ichihara, JP;
Ryoichi Adachi, Chiba, JP;
Assignee:
Cabot Corporation, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/50 ;
U.S. Cl.
CPC ...
C09C 1/50 ;
Abstract
A process for producing carbon blacks having lower surface area and structure wherein steam is introduced into the combustion gas stream at a point located a distance “L” from the point of introduction of feedstock into the combustion gas stream such that the ratio L/D ranges from 0 to less than 1.0, where “D” is the diameter of the zone of the reactor at the point of introduction of feedstock.