PROCESS FOR PRODUCING AQUEOUS POLYACRYLIC ACID SOLUTIONS
The invention relates to a method for producing aqueous solutions of homo or copolymers of acrylic acid by means of radical polymerization of acrylic acid and optional water-soluble, monoethylene unsaturated comonomers in an aqueous medium in the presence of at least one water-soluble initiator and...
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| creator | BOLETTE URTEL WOLFGANG LOTH ELKE GUETLICH-HAUK JUERGEN DETERING RUTH WIRS MATTHIAS KLEINER MARKUS BRYM |
| description | The invention relates to a method for producing aqueous solutions of homo or copolymers of acrylic acid by means of radical polymerization of acrylic acid and optional water-soluble, monoethylene unsaturated comonomers in an aqueous medium in the presence of at least one water-soluble initiator and at least one water-soluble regulator, wherein the polymerization is performed by means of a continuous process, and wherein low-molecular components are at least partially separated out of the aqueous polymer solution obtained after polymerization. Microstructured mixers and reactors are preferably used for the polymerization. At least one reactor and/or mixer having microstructures are preferably used for the process.
La invención se refiere a un método para producir soluciones acuosas de homo- o copolímeros de ácido acrílico por medio de polimerización radical de ácido acrílico y comonómeros monoetileno insaturados solubles en agua en un medio acuoso en la presencia de por lo menos un iniciador soluble en agua y por lo menos un regulador soluble en agua, en donde la polimerización se realiza por medio de un proceso continuo, y en donde los componentes de bajo peso molecular son por lo menos parcialmente separados de la solución polimérica acuosa obtenida después de la polimerización. Los mezcladores microestructurados y los reactores se utilizan de preferencia para la polimerización. Por lo menos un reactor y/o mezclador que tiene microestructuras se utiliza de preferencia para el proceso. |
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La invención se refiere a un método para producir soluciones acuosas de homo- o copolímeros de ácido acrílico por medio de polimerización radical de ácido acrílico y comonómeros monoetileno insaturados solubles en agua en un medio acuoso en la presencia de por lo menos un iniciador soluble en agua y por lo menos un regulador soluble en agua, en donde la polimerización se realiza por medio de un proceso continuo, y en donde los componentes de bajo peso molecular son por lo menos parcialmente separados de la solución polimérica acuosa obtenida después de la polimerización. Los mezcladores microestructurados y los reactores se utilizan de preferencia para la polimerización. Por lo menos un reactor y/o mezclador que tiene microestructuras se utiliza de preferencia para el proceso.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING |
| title | PROCESS FOR PRODUCING AQUEOUS POLYACRYLIC ACID SOLUTIONS |
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