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:
Sep. 18, 1990
Filed:
Sep. 30, 1988
Applicant:
Inventors:
Haya Zemel, Des Plaines, IL (US);
Mark B Koch, Des Plaines, IL (US);
Assignee:
UOP, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536103 ; 536106 ; 536110 ; 536124 ; 527300 ; 527311 ;
Abstract
Resins resulting from the crosslinking of cyclodextrin with dicarboxylic acid dihalides often show marginal binding capacity for guest molecules and poor kinetics of guest molecule removal because of the limited porosity of the resins. Resins whose apparent bulk density has been reduced by at least 20% show an enhancement in both of the aforementioned properties resulting from an increase in porosity of the resins. Such resins in general can be formed by conducting the crosslinking reaction in the presence of a blowing agent. The resulting materials retained their desirable physical properties for use in a fixed or packed bed.