181.
    发明专利
    未知

    公开(公告)号:DE10049297A1

    公开(公告)日:2002-04-11

    申请号:DE10049297

    申请日:2000-10-04

    Applicant: BASF AG

    Abstract: The present invention relates to water-soluble or water-dispersible copolymers obtainable by free-radical polymerization of a) 80 to 20% by weight of hydroxy-C 1 -C 6 -alkyl (meth)acrylate and, where appropriate, one or more compounds of the formula (A) or (B) with R 1 =H, C 1 -C 6 -alkyl, R 2 =H, CH 3 R 3 =C 1 -C 24 -alkyl or mixtures thereof in the presence of b) 20 to 80% by weight of polyvinyl alcohol (PVA) and c) where appropriate 0 to 20% by weight of other polymerizable compounds (C), a process for their preparation, and their use as coating agent, binder and/or film-forming excipient in pharmaceutical dosage forms.

    184.
    发明专利
    未知

    公开(公告)号:DE59509563D1

    公开(公告)日:2001-10-04

    申请号:DE59509563

    申请日:1995-04-05

    Applicant: BASF AG

    Abstract: Slow-release matrix pellets with a spherical or lenticular shape and uniform maximum diameters in the range from 0.5 to 4 mm, composed ofa) 0.1-87% by weight of at least one biologically active compound,b) 5-50% by weight of at least one water-insoluble polymer,c) 5-45% by weight of at least one lipophilic component as plasticizer for polymer b),d) 3-40% by weight of a natural or semisynthetic gel former,e) 0-50% by weight of one or more conventional formulation aids.

    186.
    发明专利
    未知

    公开(公告)号:DE19944464A1

    公开(公告)日:2001-03-22

    申请号:DE19944464

    申请日:1999-09-16

    Applicant: BASF AG

    Abstract: The invention relates to a method for the production of iodine polyvinylpyrrolidone in an aqueous solution, whereby an aqueous polyvinylpyrrolidone solution and at least 4.0 wt % of elemental iodine, in relation to the calculated solid content of polyvinylpyrrolidone, are mixed. The said invention is characterized in that at the time of mixing the concentration c of the aqueous polyvinylpyrrolidone solution, in relation to the total amount of polyvinylpyrrolidone and water, and the K-value of polyvinylpyrrolidone, have the following relationship: c > 100 x [0.1 + 8: (K + 5)] whereby c is given in wt % and the K-value according to Fikentscher ranges from 10 to 100. The invention also relates iodine polyvinylpyrrolidone solutions which are obtained according to said method. Solid iodine polyvinylpyrrolidone can be obtained after removal of water and other volatile components from an iodine polyvinylpyrrolidone solution. The invention further to the use of aqueous iodine polyvinylpyrrolidone solutions containing dissolved solid iodine polyvinylpyrrolidone for the production of disinfectants, weak disinfectants or for the treatment of wounds and for the production of wound coverings.

    New urethane (meth)acrylate compounds containing siloxane groups are precursors of new polymers useful especially in hair treatment products.

    公开(公告)号:DE19923276A1

    公开(公告)日:2000-11-23

    申请号:DE19923276

    申请日:1999-05-20

    Applicant: BASF AG

    Abstract: Urethane (meth)acrylates containing siloxane groups, are new. Urethane (meth)acrylates (I) contain siloxane groups, which are polymerizable by free radicals, and which are made up from: (a) compounds containing active H atoms, and alpha , beta -ethylenic double bonds which are polymerizable by free radicals; (b) diisocanates; (c) compounds containing two active H atoms; (d) compounds containing active H atoms and siloxane groups; and optionally (e) compounds containing two or more active H atoms and ionogenic and/or ionic groups; (f) monovalent alcohols, primary or secondary amines and/or monoisocyanates; and/or (g) compounds containing alpha , beta -ethylenic double bonds and substituted with isocyanate groups. Independent claims are also included for the following: (1) the production of (I) containing urea groups; (2) water-soluble and water-dispersible polymers comprising (I) co-polymerized with alpha , beta -ethylenically unsaturated monomer (M) which is polymerizable by free radicals; and (3) cosmetic and pharmaceutical agents containing the polymer of (2).

    189.
    发明专利
    未知

    公开(公告)号:DE59605848D1

    公开(公告)日:2000-10-12

    申请号:DE59605848

    申请日:1996-03-09

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/01021 Sec. 371 Date Sep. 16, 1997 Sec. 102(e) Date Sep. 16, 1997 PCT Filed Mar. 9, 1996 PCT Pub. No. WO96/29053 PCT Pub. Date Sep. 26, 1996Transparent rapid release active substance compositions obtainable by extrusion of melts, containing non-steroidal analgesics, homopolymers of N-vinylpyrrolidone, saccharides or sugar alcohols and sodium or potassium salts.

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