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. 27, 1982
Filed:
Aug. 18, 1980
Applicant:
Inventors:
Adrien Dromard, Paris, FR;
Ramanadin, Ales, FR;
Assignee:
Rhone-Poulenc Industries, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; C08F / ;
U.S. Cl.
CPC ...
521 31 ; 521 32 ; 521 28 ;
Abstract
Process for preparing anion exchange resins comprising polymerizing a vinyl aromatic compound having at least one alkyl group containing about 1 to 3 carbon atoms, alone or mixed with a copolymerizable monomer, optionally in the presence of a mineral support, followed by brominating the alkyl groups of the resulting polymer by means of an N-bromoamide or an N-bromoimide, and then aminating the brominated product obtained. The resulting anion exchange resins are useful in the chemical, pharamaceutical, food, and metallurgical industries.