中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.024 seconds)

    3.
    发明专利
    未知

    公开(公告)号：DK151814B

    公开(公告)日：1988-01-04

    申请号：DK369575

    申请日：1975-08-15

    Applicant: BASF AG

    Inventor： HERRLE KARL ,  DENZINGER WALTER ,  SEELERT KURT ,  SCHWARZ WOLFGANG

    IPC: A61K31/18 ,  A61K31/785 ,  A61K31/79 ,  A61K33/18 ,  C08F8/00 ,  C08F8/20 ,  C08F126/10 ,  C08F8/22

    Abstract: Polyvinylpyrrolidone-iodine, manufactured by reaction of iodine and a polyvinylpyrrolidone obtained by polymerization in an anhydrous organic solvent in the presence of a source of free radicals and optionally in the presence of a heavy metal of atomic number from 23 to 29, in the form of a complex compound or of a salt with an organic acid, as a co-activator, followed by steam distillation of this polyvinylpyrrolidone, if appropriate. The PVP-iodine of the invention is very stable and can be used as a disinfectant.

    MANUFACTURE OF POLYVINYLPYRROLIDONE-IODINE
    4.
    发明专利
    MANUFACTURE OF POLYVINYLPYRROLIDONE-IODINE 未知

    公开(公告)号：CA1081394A

    公开(公告)日：1980-07-08

    申请号：CA334554

    申请日：1979-08-28

    Applicant: BASF AG

    Inventor： HERRLE KARL ,  DENZINGER WALTER ,  SEELERT KURT ,  SCHWARZ WOLFGANG

    IPC: C08F126/08

    Abstract: A process for the manufacture of polyvinylpyrrolidoneiodine from polyvinyl pyrrolidone and iodine which comprises: - the free radical polymerization of vinylpyrrolidone in a anhydrous organic solvent selected from the group consisting of aromatic hydrocarbons, lower aliphatic monohydric alcohols of 1 to 4 carbon atoms, in the presence of free radicals supplied by an organic per-compound in an amount of about 0.5 to 5% by weight on the basis of the weight of the vinylpyrrolidone; - converting the obtained polyvinylpyrrolidone, after completion of polymerization and before drying, into an aqueous solution by adding water and distilling off the organic solvent, the aqueous solution then being subjected to treatment with steam and reacting the aqueous polyvinylpyrrolidone solution with iodine.

    MANUFACTURE OF POLYVINYLPYRROLIDONE-IODINE
    5.
    发明专利
    MANUFACTURE OF POLYVINYLPYRROLIDONE-IODINE 未知

    公开(公告)号：CA1079443A

    公开(公告)日：1980-06-10

    申请号：CA233153

    申请日：1975-08-08

    Applicant: BASF AG

    Inventor： HERRLE KARL ,  DENZINGER WALTER ,  SEELERT KURT ,  SCHWARZ WOLFGANG

    IPC: A61K31/18 ,  A61K31/785 ,  A61K31/79 ,  A61K33/18 ,  C08F8/00 ,  C08F8/20 ,  C08F126/10 ,  C08F8/22

    Abstract: A process for the manufacture of polyvinylpyrrolidoneiodine from polyvinyl pyrrolidone and iodine which comprises: -the free radical polymerization of vinylpyrrolidone in a anhydrous organic solvent selected from the group consisting of aromatic hydrocarbons, lower aliphatic monohydric alcohols of 1 to 4 carbon atoms, in the presence of free radicals supplied by an organic per-compound in an amount of about 0.5 to 5% by weight on the basis of the weight of the vinylpyrrolidone; -mixing the resulting polyvinylpyrrolidone in the form of a powder having a K value of from 10 to 50 and a water content of from 0.5 to 11% by weight with iodine in an amount of about 5 to 25% based on the total weight of the polyvinylpyrrolidoneiodine, at about room temperature up to about 50.degree.C and, -heating the resulting mixture for about 5 to 20 hours at about 70 to 100.degree.C.

    6.
    发明专利
    未知

    公开(公告)号：DK151814C

    公开(公告)日：1988-06-06

    申请号：DK369575

    申请日：1975-08-15

    Applicant: BASF AG

    Inventor： HERRLE KARL ,  DENZINGER WALTER ,  SEELERT KURT ,  SCHWARZ WOLFGANG

    IPC: A61K31/18 ,  A61K31/785 ,  A61K31/79 ,  A61K33/18 ,  C08F8/00 ,  C08F8/20 ,  C08F126/10 ,  C08F8/22

    Abstract: Polyvinylpyrrolidone-iodine, manufactured by reaction of iodine and a polyvinylpyrrolidone obtained by polymerization in an anhydrous organic solvent in the presence of a source of free radicals and optionally in the presence of a heavy metal of atomic number from 23 to 29, in the form of a complex compound or of a salt with an organic acid, as a co-activator, followed by steam distillation of this polyvinylpyrrolidone, if appropriate. The PVP-iodine of the invention is very stable and can be used as a disinfectant.

Patent Agency Ranking