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:
Jun. 04, 1996
Filed:
Sep. 28, 1994
Applicant:
Inventors:
Cheng Q Song, Marlton, NY (US);
Albert H Greer, Haddonfield, NJ (US);
Marc E Halpern, Cherry Hill, NJ (US);
Assignee:
Sybron Chemical Holdings Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08J / ;
U.S. Cl.
CPC ...
521 32 ; 521 27 ; 521 33 ;
Abstract
Ion exchange resins are prepared by a process comprising functionalizing styrene-divinylbenzene copolymers, or other crosslinked vinyl copolymers, by sulfonation or chloromethylation and amination, and achieving high ion exchange capacity and a low degree of resin bead fragmentation, in the presence of hydrocarbon liquids, such as cyclohexane.