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    PELLAS DE MATRIZ DE LIBERACION LENTA Y SU PRODUCCION.
    4.
    发明专利
    PELLAS DE MATRIZ DE LIBERACION LENTA Y SU PRODUCCION. 未知

    公开(公告)号：MXPA96004911A

    公开(公告)日：2004-08-19

    申请号：MX9604911

    申请日：1995-04-05

    Applicant: BASF AG

    Inventor： AXEL SANNER

    IPC: A61K9/16 ,  A61K9/22

    Abstract: Pellas de matriz de liberacion lenta, con una configuracion esferica o lenticular y diametros uniformes maximos en el intervalo de 0.5 a 4 mm., las cuales estan compuestas de: a) del 0.1 al 87% en peso cuando menos un compuesto activo biologicamente; b) del 5 al 50% en peso cuando menos un polimero insoluble en agua; c) del 5 al 45% en peso de al menos un componente lipofilico, como plastificante para el polimero b); d) del 3 al 40% en peso de un agente formador de gel, natural o semisintetico; e) del 0 al 50% en peso de uno o mas auxiliares convencionales de formulaciones.

    5.
    发明专利
    未知

    公开(公告)号：PT1002811E

    公开(公告)日：2002-07-31

    申请号：PT99122635

    申请日：1999-11-13

    Applicant: BASF AG

    Inventor： AXEL SANNER ,  SCHEHLMANN VOLKER ,  KIM SON NGUYEN ,  HOSSEL PETER

    IPC: A61K8/72 ,  A61K8/00 ,  A61K8/81 ,  A61K8/91 ,  A61Q5/00 ,  A61Q5/06 ,  C08F271/02 ,  C08L51/00 ,  C08L83/04 ,  A61K7/06

    Abstract: Water-soluble or dispersible graft copolymers having a K-value of 30-70 are claimed, which are obtained by radical polymerization of specified acrylate monomers and carboxyl group-containing vinyl monomers with a prepolymer having a K-value of 30-50 and containing at least 30 wt.% homopolymerized vinyl pyrrolidone (or ring expanded analogs). Water-soluble or dispersible graft copolymers having a K-value of 30-70 are claimed, which are obtained by radical polymerization of monomers (A) with a prepolymer (B) having a K-value of 30-50. Monomers (A) comprise (a) 50-85 wt.% monomers of formula CH2=CR'-CO-X-C(CH3)3 (I), (b) 15-30 wt.% of at least one carboxyl group-containing vinyl monomer and (c) 0-25 wt.% of a radical polymerizable vinyl monomer of formula CH2=CR'-CO-X-R (II). Prepolymer (B) contains at least 30 wt.% homopolymerized monomer of formula (III). The weight ratio of A:B is 100:5 to 100:200 and the graft copolymer is at least partially neutralized. X = O or NR''; R', R'' = H or 1-6C alkyl; R = 6-30C alkyl; n = 1-3. An Independent claim is included for a hair fixing preparation comprising 0.5-20 wt.% of the graft copolymer, 0-10 wt.% of a commercially available hair polymer, 50-99.5 wt.% of an alcohol and/or water, 0-50 wt.% of a propellant in the form of propane/butane and/or dimethyl ether, 0-0.5 wt.% of a water-soluble or dispersible silicone compound and 0-0.2 wt.% conventional additives.

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