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. 08, 1986
Filed:
Apr. 09, 1984
Christian de Tassigny, Sassenage, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
Process for the conditioning of waste, such as radioactive or toxic waste, whose acidity can inhibit polymerization reactions, e.g. waste containing cation exchange materials. This process consists of incorporating the waste into a liquid epoxy resin at ambient temperature and then bringing about the polymerization of the resin by means of a hardener, in order to obtain a solid block. A hardener containing at least one compound having at least one NH.sub.2 group in an adequate quantity for blocking the active sites of the cation exchange materials present in the waste or for neutralizing the acidity of the humid waste and for polymerizing the epoxy resin is used. This process can be more particularly used for conditioning resin beds used for the purification of the water of nuclear power stations.