Process for making fluorinated polymer adsorbent particles

Details Process for making fluorinated polymer adsorbent particles Process for making fluorinated polymer adsorbent particles

C - Chemistry, Metallurgy

08

J

C08J 9/20 (2006.01) B01D 15/08 (2006.01) B01J 20/26 (2006.01) C08J 9/28 (2006.01) C08L 33/00 (2006.01)

Patent

CA 2376429

A process to make particles by anaerobic reaction of a water-insoluble solution of organic compounds comprising (a) a monomer selected from C2-4 alkylene glycol esters of a C3-6 acrylic acid and a divinyl benzene; (b) a polyfluorinated vinyl monomer; (c) a monomer selected from acrylic acid, methacrylic acid and esters thereof; (d) a free radical initiator; and (e) a water-insoluble, organic solvent-soluble porogenic material, the weight ratio of comonomers (a) plus (b) plus (c) to the porogenic material being from 0.5:1 to 2:1. The adsorbent particles produced by the process are useful in carrying out chromatographic separations, or in the production of medical devices.

La présente invention concerne un processus de fabrication de particules par réaction anaérobie d'une solution de composés organiques non soluble dans l'eau. Ces composés comprennent (a) un monomère choisi dans le groupe constitué des esters C¿2-4? alkylène glycol d'un acide acrylique en C¿3-6? et d'un benzène divinyle; (b) un monomère vinyle polyfluoré; (c) un monomère sélectionné dans un acide acrylique, méthacrylique et des esters de ceux-ci; (d) un radical libre amorce; et (e) un matériau porogène soluble dans un solvant organique mais non soluble dans l'eau, le rapport de la masse des comonomères (a) plus (b) plus (c) rapporté au matériau porogène allant de 0.5:1 à 2:1. Ces particules adsorbantes produites par ce processus conviennent pour les séparations en chromatographie, ou pour la production de dispositifs médicaux.

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