PROCEDIMIENTO PARA LA FABRICACION DE DISPERSIONES POLIMERAS HIDROSOLUBLES CON UNA ALTA PARTE POLIMERA

LA INVENCION SE REFIERE A UN PROCESO PARA LA ELABORACION DE DISPERSIONES DE POLIMERO ACUOSAS, DE BAJA VISCOSIDAD SOBRE BASE ACUOSA CON ALTA CONCENTRACION DE SUSTANCIA ACTIVA, CONTENIENDO UN POLIMERIZADO (A), CONSTITUIDO A PARTIR DE MONOMEROS SOLUBLES EN AGUA, MONOMEROS HIDROFOBOS Y EVENTUALMENTE MON...

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Hauptverfasser:	SCHMITT, GUNTER, SCHLIESSMANN, PETRA, BRAUM, MANFRED, CARL, JOACHIM, QUIS, PETER
Format:	Patent
Sprache:	spa
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES GENERAL PROCESSES OF COMPOUNDING IMPREGNATING OR COATING OF PAPER MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING POLISHES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G WORKING-UP
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Zusammenfassung:	LA INVENCION SE REFIERE A UN PROCESO PARA LA ELABORACION DE DISPERSIONES DE POLIMERO ACUOSAS, DE BAJA VISCOSIDAD SOBRE BASE ACUOSA CON ALTA CONCENTRACION DE SUSTANCIA ACTIVA, CONTENIENDO UN POLIMERIZADO (A), CONSTITUIDO A PARTIR DE MONOMEROS SOLUBLES EN AGUA, MONOMEROS HIDROFOBOS Y EVENTUALMENTE MONOMEROS ANFIFILICOS, QUE MUESTRAN UN PESO MOLECULAR MEDIO MW DE AL MENOS 5 X 10 5 DALTON Y CONTENIENDO AL MENOS UN MEDIO (D) DE DISPERSION POLIMERO, ELABORANDOSE EN UNA PRIMERA ETAPA UNA DISPERSION (PD) ACUOSA A PARTIR DEL POLIMERIZADO (A) Y AL MENOS UN MEDIO (D)DE DISPERSION POLIMERO, GENERANDOSE EN UNA SEGUNDA ETAPA UNA DISPERSION (PD'') ACUOSA, ALTAMENTE CONCENTRADA A PARTIR DE LA DISPERSION (PD) ACUOSA MEDIANTE EXTRACCION DE AGUA, ASI COMO EN UNA TERCERA ETAPA SE OBTIENE UNA DISPERSION (PD''') ACUOSA CON ALTO CONTENIDO DE SUSTANCIA ACTIVA POR MEDIO DE LA ADICION DE UNA DISPERSION ACUOSA AL MENOS DE UN MEDIO (D) DE DISPERSION POLIMERO PARA DISPERSION (PD'') CONCENTRADA Y DONDE LA SEGUNDA Y LA TERCERA ETAPA DEL PROCESO PUEDEN SER REPETIDAS SUCESIVAMENTE. PCT No. PCT/DE94/01214 Sec. 371 Date Apr. 12, 1995 Sec. 102(e) Date Apr. 12, 1995 PCT Filed Oct. 14, 1994 PCT Pub. No. WO95/11269 PCT Pub. Date Apr. 27, 1995The invention relates to a process for the preparation of low viscous, water soluble polymer dispersions on an aqueous basis with a high concentration of the active substance, containing a polymerizate A) synthesized from the monomeric components, hydrophobic monomers and optionally amphiphilic monomers, which exhibit an average molecular weight Mw of at least 5x105 Dalton and contain at least one polymeric dispersing agent D), where in a first step an aqueous dispersion PD) is prepared from the polymerizate A) and at least one polymeric dispersing agent D); in a second step an aqueous, highly concentrated dispersion PD') is prepared from the aqueous dispersion PD) by extracting the water; and in a third step an aqueous dispersion PD'') with a high content of the active substance is prepared through the addition of an aqueous dispersion of at least one polymeric dispersing agent D) to the concentrated dispersion PD'), and where the second and third process step can be repeated in succession.