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. 08, 1997
Filed:
Feb. 06, 1995
Applicant:
Inventors:
Andrzej W Trochimcznk, Knoxbille, TN (US);
Ralph C Gatrone, Plymouth, PA (US);
Spiro Alexandratos, Knoxville, TN (US);
E Philip Horwitz, Naperville, IL (US);
Assignees:
Arch Development Corp., Chicago, IL (US);
The University of Tennessee Research Corp., Knoxville, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521 34 ; 521 30 ; 521 32 ; 521 33 ; 525403 ; 525538 ; 526278 ;
Abstract
An ion exchange resin is disclosed that is comprised of an insoluble copolymer onto which are grafted pendent groups that provide 1.0 to about 10 mmol/g dry weight phosphorous. The pendent groups have the formula ##STR1## wherein R is hydrogen, a cation or mixtures thereof; and