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:
Jul. 16, 2002
Filed:
Apr. 15, 1999
Applicant:
Inventors:
Martin Grendze, Indianapolis, IN (US);
Donald W. McQuigg, Plainfield, IN (US);
John T. Wyeth, Indianapolis, IN (US);
Ernest Crowe, Beech Grove, IN (US);
Katherine M. Weisheit, Lafayette, IN (US);
Eric F. V. Scriven, Greenwood, IN (US);
Assignee:
Reilly Industries, Inc., Indianapolis, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/44 ; C08F 8/02 ; C08F 8/06 ; C08F 8/34 ;
U.S. Cl.
CPC ...
C08F 8/44 ; C08F 8/02 ; C08F 8/06 ; C08F 8/34 ;
Abstract
Described are non-swelling, crosslinked, bead forms of ampholytic base polymers that can be utilized in the chromatographic-type separation of acids from other compounds. Preferred polymers are prepared by modifying a poly-2 or poly-4-vinylpyridine resin crosslinked with divinylbenzene.