Reacting polymer and/or monomer, e.g. polyaddition of caprolactam, by adding compressed fluid with reactive components to polymer or monomer matrix, then decompressing fluid before extraction from matrix.

: Voelkle, D.; Muth, O.; Hirth, T.; Diemert, J.

Abstract
Die Erfindung betrifft ein Verfahren zur Umsetzung von reaktivem Polymer und/oder Monomer, das folgende Schritte enthaelt: - Bereitstellen einer Matrix, die reaktives Polymer und/oder Monomer aufweist, - Bereitstellen eines komprimierten Fluids (3), das reaktive Komponenten (1) in geloester Form enthaelt, - Fuehrung des komprimierten Fluids (3) zur Matrix, - Kontaktieren des komprimierten Fluids (3) mit der Matrix, - Entspannen des mit der Matrix kontaktierten Fluids, - Entfernen des entspannten Fluids von der Matrix. Dabei werden waehrend und/oder nach dem Entspannen reaktive Komponenten (1) in der Matrix ausgefaellt, und waehrend und/oder nach dem Kontaktieren reagiert reaktives Polymer in der Matrix. Das Verfahren eignet sich insbesondere zur Durchfuehrung von schnellen Reaktionen von reaktivem Polymer und schnellen Polyreaktionen.

 

EP 1092527 A UPAB: 20010607 NOVELTY - Reacting a polymer and/or monomer, by adding a compressed fluid with reactive components tothe polymer or monomer matrix, then decompressing the fluid before extraction from matrix. The reaction of the polymer and/or monomer is initiated on or after contact with the compressed fluid. DETAILED DESCRIPTION - A matrix based on a reactive polymer and/or monomer, and a compressed fluid (3) containing dissolved reactive components (1) are prepared. The compressed fluid is added to the matrix and the fluid is depressurized before removing it from the matrix material. The reactive components are precipitated in the matrix during and/or after the depressurization and the reaction of the polymer and/or monomer is initiated on or after contact with the compressed fluid. USE - For reacting polymers and/or monomers, e.g. polyaddition of capro- or laurin lactam or reaction of two component resins such as thermosetting polyurethane, silicone, epoxide and polyester. ADVANTAGE - Reactive components are finely dispersed in the matrix, distribution time is short. Fast reactions can be handledand additional processing of the matrix containing the reactive components is possible before the initial reaction is completed.