Process for the preparation of anionically modified polyurethane (urea) masses containing fillers, polyurethane (urea) masses obtained and their use

• Main Authors: MACK KURT, REISCHL ARTHUR
• Format: Patent
• Language: English; Spanish
• Published: 16.02.1988
• Edition: 4
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BEER; BIOCHEMISTRY; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; VINEGAR; WINE; WORKING-UP

The invention is directed to the formation of filler containing anionically modified polyurethane (urea) compositions by reacting suitable polyurethane (urea) forming ingredients in the presence of from 5 to 97% by weight of fillers selected from the group consisting of (i) finely divided or lumpy foam particles, (ii) fossile lignocelluloses, (iii) carbon powder, and (iv) mixtures thereof, said filler-containing polyurethane (urea) having a water absorbability of from 33 to 97% by weight, and having an anionic group content of from 10 to 3000 milliequivalents of anionic groups and/or groups capable of anionic group formation per 1000 grams of said polyurethane (urea) components. PROCEDIMIENTO PARA LA OBTENCION DE COMPOSICIONES DE POLIURETAN(UREAS) ANIONICAMENTE MODIFICADAS, CONTENIENDO MATERIALES ESPUMADOS (PREVIAMENTE FABRICADOS) Y/O MATERIALES DE CARGA A BASE DE LIGMOCELULOSAS. COMO EN CASO DADO ULTERIORES MATERIALESDE CARGA A BASE DE POLVOS ORGANICOS, INORGANICOS O METALICOS,EN TROZOS O EN LAMINAS CONTENIENDO LOS MATERIALES DE CARGA UNIDOS EN FORMA RESISTENTES A LA ABRASION, CON UN VALOR DE CAPACIDAD DE RECEPCION DE AGUA MUY ALTO (WAF) DE UN 93-97% Y CON UN CONTENIDO EN GRUPOS ANIONICOS DE 10 HASTA 3000 MILIQUIVALENTES POR POLIMEROS DE NCO (EN CASO DADO ANIONICAMENTE MODIFICADOS) CON UNA FUNCIONALIDAD DE MAS DE 2,1 CON CANTIDADES DE AGUA AMPLIAMENTE SUPERIORES A LAS ESTOQUIOMETRICAS, EN CASO DADO AGENTES PROLONGADORES DE CADENA QUE LLEVAN GRUPOS ANIONICOS Y EN PRESENCIA DE MATERIALES ESPUMADOS PREVIAMENTE FABRICADOS, DESMENUZADO, Y/O ULTERIORES MATERIALES DE CARGA Y, EN CASO DADO, EN PRESENCIA DE BIOMASAS. LA INVENCION SE REFIERE ADEMAS, AL EMPLEO DE ESTAS COMPOSICIONES DE POLIURETAN(UREA) ANIONICAS COMO SOPORTE PARA LAS BIOMASAS EN LA PURIFICACION DE AGUAS RESIDUALES O EN LOS PROCESOS DE FERMENTACION BIOLOGICOS.-