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:
Mar. 05, 1985
Filed:
Jul. 29, 1983
Applicant:
Inventor:
Paul J Cheng, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C09C / ;
U.S. Cl.
CPC ...
423450 ; 423449 ; 422 62 ; 422150 ;
Abstract
The tint residual of produced carbon black appears to go through a maximum value at a toluene photelometer of between about 65 and about 75. A process is disclosed for maximizing the tint residual of carbon black product at constant reactor volume and combustion gas flow by measuring the photelometer of the produced carbon black and changing the feedstock rate so that the photelometer of the carbon black being produced falls within the range of 65 to about 75.