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:
Nov. 29, 1988
Filed:
Jul. 26, 1985
Applicant:
Inventors:
Michael P Bigwood, Oreland, PA (US);
John O Naples, Dresher, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
521 32 ; 526342 ; 5253293 ;
Abstract
Copolymers of acrylonitrile with aliphatic cross-linkers having two or more unconjugated vinylic groups are functionalized with polyamines to form weakly basic anion exchange resins having both low rinse-volume requirements and high anion exchange capacity.