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 ...
B01D / ;
U.S. Cl.
CPC ...
55 68 ; 55 71 ; 55 75 ;
Abstract
Volatile organic compounds such as ketones and fluorocarbons are removed from vapor streams by contacting the vapor stream with a bed of an adsorbent comprising a binderless carbon molecular sieve. The carbon molecular sieves are characterized by their method of manufacture which includes forming a polymer from oxygen-free precursors and carbonizing directly to the finished sieve material in the absence of oxygen.