METHOD FOR PREPARING A POLYAMIDE BY REACTIVE EXTRUSION, AND EXTRUDER ADAPTED FOR THE IMPLEMENTATION OF SUCH A METHOD
The object of the invention is a method for preparing a polyamide from one or several monomers adapted for the preparation of polyamide characterized in that the selected monomer(s), is(are) introduced without any preliminary reaction and without any preliminary preparation of the corresponding salt...
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| creator | LAGNEAUX, DIDIER GIMENEZ, JÉRÔME BROSSE, ANNE-CARINE GOUJARD, LAURENT SAUTEL, HENRI |
| description | The object of the invention is a method for preparing a polyamide from one or several monomers adapted for the preparation of polyamide characterized in that the selected monomer(s), is(are) introduced without any preliminary reaction and without any preliminary preparation of the corresponding salt, in an extruder including at least two conveying screws rotating co-rotatively and in that all the reaction and polycondensation steps, initially starting from the selected monomer(s), and giving the possibility of ending up with the desired polyamide, are conducted in an extruder including at least two conveying screws rotating co-rotatively, and polycondensation is achieved by carrying out at least two operations for discharging the by-product(s) formed by the polycondensation reaction. |
| format | Patent |
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GOUJARD, LAURENT ; SAUTEL, HENRI</creatorcontrib><description>The object of the invention is a method for preparing a polyamide from one or several monomers adapted for the preparation of polyamide characterized in that the selected monomer(s), is(are) introduced without any preliminary reaction and without any preliminary preparation of the corresponding salt, in an extruder including at least two conveying screws rotating co-rotatively and in that all the reaction and polycondensation steps, initially starting from the selected monomer(s), and giving the possibility of ending up with the desired polyamide, are conducted in an extruder including at least two conveying screws rotating co-rotatively, and polycondensation is achieved by carrying out at least two operations for discharging the by-product(s) formed by the polycondensation reaction.</description><language>eng ; pol</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; 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| language | eng ; pol |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | METHOD FOR PREPARING A POLYAMIDE BY REACTIVE EXTRUSION, AND EXTRUDER ADAPTED FOR THE IMPLEMENTATION OF SUCH A METHOD |
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