PROCESS FOR THE PRODUCTION OF POLYSACCHARIDE BEADS
    2.
    发明授权
    PROCESS FOR THE PRODUCTION OF POLYSACCHARIDE BEADS 有权
    用于生产POLYSACCHARIDEPERLEN

    公开(公告)号:EP1115774B1

    公开(公告)日:2003-02-26

    申请号:EP99951346.8

    申请日:1999-09-23

    IPC分类号: C08J3/16 C08B37/12

    CPC分类号: C08J3/16 C08J2305/00

    摘要: The present invention relates to a method for producing porous polysaccharide beads, comprising: (a) mixing a water-based solution of a polysaccharide under stirring with an essentially water-immiscible first organic phase to form an emulsion which separates into two continuous phases; (b) adding a second organic phase comprising an emulsifier and an organic solvent to form a three-phase system; (c) allowing the three-phase system to emulsify; and (d) decreasing the temperature below the gelling point of the polysaccharide, thereby obtaining beads having two sets of pores, said method being characterised in that the emulsifier is a water-insoluble polymer capable of stabilising said three-phase system.