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:
Dec. 29, 1998
Filed:
Apr. 17, 1997
Applicant:
Inventors:
Jean Morlec, Saint Nazaire, FR;
Christian Hamon, Saint Nazaire, FR;
Assignee:
Institut Francais du Petrole, , FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C / ;
U.S. Cl.
CPC ...
4234497 ; 588213 ;
Abstract
The invention relates to a method of manufacture of carbon black by pyrolysis of rubber waste previously ground and from which the scrap has been removed. With this method, pyrolysis is carried out in the presence of at least one gas selected from water vapour, carbon dioxide, a combustion gas or a mixture of water vapour and at least one inert gas.