MACROESTRUCTURAS POLIMERAS, ABSORBENTES Y POROSAS, Y METODOS DE PREPARACION

SE PRESENTAN MACROESTRUCTURAS POLIMERICAS, ABSORBENTES (52) QUE SON POROSAS Y QUE COMPRENDEN UN AGREGADO ENLAZADO DE INTERPARTICULAS QUE TIENE UN VOLUMEN CIRCUNSCRITO EN SECO MAYOR DE ALREDEDOR DE 10.0 MILIMETROS CUBICOS. EL AGREGADO ENLAZADO DE INTERPARTICULAS COMPRENDE UNA MULTIPLICIDAD DE PARTICU...

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Hauptverfasser:	LAHRMAN, FRANK, HENRY, BERG, CHARLES, JOHN, ROE, DONALD, CARROLL
Format:	Patent
Sprache:	spa
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES HYGIENE LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORGANIC MACROMOLECULAR COMPOUNDS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PROSTHESES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS WORKING-UP
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Zusammenfassung:	SE PRESENTAN MACROESTRUCTURAS POLIMERICAS, ABSORBENTES (52) QUE SON POROSAS Y QUE COMPRENDEN UN AGREGADO ENLAZADO DE INTERPARTICULAS QUE TIENE UN VOLUMEN CIRCUNSCRITO EN SECO MAYOR DE ALREDEDOR DE 10.0 MILIMETROS CUBICOS. EL AGREGADO ENLAZADO DE INTERPARTICULAS COMPRENDE UNA MULTIPLICIDAD DE PARTICULAS PRECURSORAS DE UN MATERIAL POLIMERO, FORMADOR DE UN HIDROGEL, ABSORBENTE, SUBSTANCIALMENTE INSOLUBLE EN AGUA; Y UN AGENTE ENLAZADOR DE INTERPARTICULAS QUE HA REACCIONADO CON EL MATERIAL DE POLIMERO DE LAS PARTICULAS PRECURSORAS PARA FORMAR ENLACES ENTRE LAS PARTICULAS PRECURSORAS. A CAUSA DE LA FORMA DE PARTICULA DE LAS PARTICULAS PRECURSORAS, LA MACROESTRUCTURA (52) TIENE POROS ENTRE PARTICULAS PRECURSORAS ADYACENTES. LOS POROS ESTAN INTERCONECTADOS POR CANALES DE INTERCOMUNICACION DE FORMA QUE LA MACROESTRUCTURA ES PERMEABLE A LOS LIQUIDOS. Absorbent polymeric macrostructures that are porous and comprise an interparticle crosslinked aggregate having a circumscribed dry volume greater than about 10.0 mm3. The interparticle crosslinked aggregrate comprises a multiplicity of precursor particles of substantially water-insoluble, absorbent, hydrogel-forming, polymer material; and an interparticle crosslinking agent reacted with the polymer material of the precursor particles to form crosslink bonds between the precursor particles. Because of the particulate nature of the precursor particles, the macrostructure has pores between adjacent precursor particles. The pores are interconnected by intercommunicating channels such that the macrostructure is liquid permeable.