DECONTAMINATING SHEET MATERIAL CONTAINING REACTIVE NANOCRYSTALLINE PARTICLES AND PRODUCTS CONSTRUCTED THEREFROM

• Main Authors: KOPER, OLGA, COLE, JASON R, MANN, PHILIP, RAJAGOPALAN, SHYAMALA
• Format: Patent
• Language: English; French
• Published: 04.03.2010
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS; CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; DECONTAMINATION ARRANGEMENTS THEREFOR; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FIRE-FIGHTING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; HYGIENE; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIFE-SAVING; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATING RADIOACTIVELY CONTAMINATED MATERIAL

The invention provides a sorptive sheet material in which finely divided nanocrystalline particles that react with a variety of chemical and/or biological agents are dispersed. The sheet material comprises a fibrous web that is formed of a plurality of fibers that are bonded to each other. The fibrous web contains a relatively high concentration of reactive nanocrystalline particles that are entrapped within the matrix of the fibrous web. Fluids containing toxic agents, such as chemical and/or biological agents, odors and/or odor causing compounds, and toxic industrial compounds, pass into the web and contact the reactive nanocrystalline particles contained therein. The reactive nanocrystalline particles react with, and chemically alter or inactivate the toxic agents. The sorptive sheet material may be used to construct containers, such as remains pouches, for the storing and transporting of contaminated items, particularly human remains. La présente invention concerne un matériau sorbant en feuille dans lequel sont dispersées des particules nanocristallines finement broyées qui réagissent avec divers agents chimiques et/ou biologiques. Ce matériau en feuille comprend un voile fibreux fait d'une pluralité de fibres collées les unes aux autres. Le voile fibreux contient des particules nanocristallines réactives en concentration relativement élevée qui sont piégées à l'intérieur de la matrice du voile fibreux. Les fluides contenant des agents toxiques tels que des agents chimiques et/ou biologiques, des mauvaises odeurs et/ou des composés sources de mauvaises odeurs, et des composés industriels toxiques, passent dans le voile et entrent en contact avec les particules nanocristallines qu'il contient. Les particules nanocristallines réactives réagissent avec les agents toxiques, et les modifient chimiquement ou les inactivent. Ce matériau sorbant en feuille convient à la réalisation de récipients tels que des sacs à restes, destinés à la conservation et au transport d'articles contaminés, en particulier, des restes humains.