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. 11, 1989
Filed:
Dec. 24, 1987
Applicant:
Inventors:
Chin-Hsiung Chang, Palatine, IL (US);
Gary J Seminara, Chicago, IL (US);
Assignee:
Allied-Signal Inc., Morristown, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502418 ; 55 68 ; 55 74 ; 55 75 ; 264 291 ; 264 296 ; 423445 ; 423449 ; 502180 ; 502416 ; 502437 ;
Abstract
A method is described for producing hydrophobic carbon molecular sieves. The method does not employ a binder to form or shape previously carbonized materials. Instead, a cross-linked oxygen-free polymer is first produced. Fine particles of this polymer are then pelletized or shaped as by simple extrusion. The extruded pellets are then carbonized in an oxygen-free atmosphere to yield binderless homogeneous particles of similar shape comprised of carbon sieves.