81.
    发明专利
    未知

    公开(公告)号:BRPI0615581A2

    公开(公告)日:2012-12-11

    申请号:BRPI0615581

    申请日:2006-08-31

    Applicant: BASF SE

    Abstract: A process for producing gelatin-free soft capsule shells based on polyvinyl alcohol-polyether graft copolymers as shell polymers, which comprises heating an aqueous solution comprising at least 45% by weight, based on the total weight of the solution, of a polymer component, where the polymer component consists of a polyvinyl alcohol-polyether graft copolymer or a mixture of polyvinyl alcohol-polyether graft copolymers and polyvinyl alcohol, extruding the solution at a temperature of at least 70° C., and solidifying the resulting film by cooling.

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