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Class 523/375 - Radioactive or Group VIIIA atom containing NRM


Subclass of Class 523 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein a radioactive element or a radioactive
No. of patents: 16
Last issue date: 07/03/2007


NumberTitleIssue Date
7238734Optical filters from nanocomposites
Methods for preparing optical filter nanocomposites from nanopowders. Both low-loaded and highly-loaded nanocomposites are included. Nanoscale coated and un-coated fillers may be used. Nanocomposite filter layers may be prepared on substrates. Gradient nanocomposite...
07/03/2007
6933331Nanotechnology for drug delivery, contrast agents and biomedical implants
A nanocomposite structure comprising a nanostructured filler or carrier intimately mixed with a matrix, and methods of making such a structure. The nanostructured filler has a domain size sufficiently small to alter an electrical, magnetic, optical, electrochemical,...
08/23/2005
6228904Nanostructured fillers and carriers
A nanocomposite structure comprising a nanostructured filler or carrier intimately mixed with a matrix, and methods of making such a structure. The nanostructured filler has a domain size sufficiently small to alter an electrical, magnetic, optical, elect...
05/08/2001
5362771Process for inclusion in (meth)acrylic resins of substances of liquid to solid consistency
Inclusion blocks of a substance chosen from ion exchange resins contaminated with radioactive elements, water which can, where appropriate, contain pollutants, solid-phase wastes in the form of blocks or pulverised preparations or liquid-phase wastes are ...
11/08/1994
5318730Process for containment of hazardous wastes
A method and composition for stabilizing and isolating hazardous, radioactive or mixed waste materials of particulate and solid types, which comprises providing a non-toxic one component aqueous mixture of an acrylic polymer containing a thixotropic agent...
06/07/1994
5310539Melanin-based agents for image enhancement
The present invention involves an image-enhancing agent comprising melanin combined with an essentially non-dissociable signal-inducing metal. The signal-inducing metal has an association constant for its melanin combination of at least about 1020.
05/10/1994
5187209Colloidal metal dispersion, and a colloidal metal complex
Thers is disclosed a novel colloidal metal dispersion in which colloidal particles of a metal are protected by specific polymers including hydrazide polymers, acrylic ester polymers and acrylamide polymers. The colloidal metal dispersion is highly stable,...
02/16/1993
4888248Colloidal metal dispersion, and a colloidal metal complex
There is disclosed a novel colloidal metal dispersion in which colloidal particles of a metal are protected by specific polymers including hydrazide polymers, acrylic ester polymers and acrylamide polymers. The colloidal metal dispersion is highly stable,...
12/19/1989
4831116Process for coagulating a grafted rubber compound
Grafted rubber compounds are coagulated after emulsion polymerization through the combination of mechanical shear forces and a water soluble cationic surfactant....
05/16/1989
4828761Process for impregnating a concrete or cement body with a polymeric material
A process for impregnating cementitious solids with polymeric materials by blending polymeric materials in a grout, allowing the grout to cure, and contacting the resulting solidified grout containing the polymeric materials with an organic mixture contai...
05/09/1989
4510196Polycarbonate compositions containing powdered sulfates
Polycarbonate compositions comprising an aromatic polycarbonate resin wherein dispersed are powdered sulfates, are particularly suitable for the preparation of films characterized by their low coefficient of static friction, high light transmission and vi...
04/09/1985
4491605Conductive polymers formed by ion implantation
Conductive materials are formed by implanting high energy ions (30 keV to 300 keV) into rigid backboned polymers, such as poly (p-phenylene sulfide); conductivities on the order of 10-3 (ohm-cm)-1 are demonstrated and the materials r...
01/01/1985
4253985Process for handling and solidification of radioactive wastes from pressurized water reactors
Borate-containing radioactive waste waters are treated by the addition of an alkali metal hydroxide and/or ammonium hydroxide (including non-detrimentally substituted ammonium hydroxides) in an amount effective to prevent precipitation of the borates at t...
03/03/1981
4230597Conversion of radioactive waste materials into solid form
Radioactive waste materials are converted into solid form by mixing the radioactive waste with a novel polymeric formulation which, when solidified, forms a solid, substantially rigid matrix that contains and entraps the radioactive waste. The polymeric f...
10/28/1980
4077901Encapsulation of nuclear wastes
Toxic waste materials are encapsulated by the method wherein the waste material in liquid or finely divided solid form is uniformly dispersed in a vinyl ester resin or an unsaturated polyester and the resin cured under conditions that the exotherm does no...
03/07/1978
4016135Radioactive ray-resistant stabilizer
A resin composition containing, as a radioactive ray-resistant stabilizer, an alkyl-substituted condensed tetracyclic hydrocarbon compound of the generic formula, wherein R denotes an alkyl group having one to four carbon atoms and x is an integer from 1 ...
04/05/1977
 
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