DISPERSIONES POLIMERICAS QUE CONTIENEN ALMIDON Y SU UTILIZACION COMO ADHESIVO DE FORRADO

    公开(公告)号:PE18497A1

    公开(公告)日:1997-06-20

    申请号:PE00075896

    申请日:1996-10-31

    Applicant: BASF AG

    Abstract: SE REFIERE A UNA DISPERSION DE POLIMEROS VIA RADICAL, QUE CONTIENE DE 0,1% A 10% EN PESO DE POLIISOCIANATO EN CALIDAD DE RETICULANTE, CARACTERIZADA PORQUE EL POLIMERO PUEDE SER OBTENIDO MEDIANTE LA POLIMERIZACION EN ESTADO DE EMULSION, DE: 1) MONOMEROS ETILENICAMENTE NO SATURADOS TALES COMO ALQUILMETACRILATOS DE C1 A C20, VINIL ESTERES DE ACIDOS CARBOXILICOS DE C1 A C20, VINIL AROMATOS DE C1 A C20, NITRILOS ETILENICAMENTE NO SATURADOS, VINIL HALOGENUROS, HIDROCARBUROS NO AROMATICOS CON POR LO MENOS DOS ENLACES DOBLES CONJUGADOS O MEZCLAS DE DICHOS MONOMEROS; Y 2) UN COLOIDE PROTECTOR QUE CONTIENE GRUPOS HIDROXILO O GRUPOS AMINO PRIMARIOS O SECUNDARIOS SELECCIONADO ENTRE POLISACARIDOS TALES COMO ALMIDONES O CELULASAS, POLIVINIL ALCOHOLES O GELATINA, PREFERIBLEMENTE ALMIDON, SIENDO APLICADO EN UNA CANTIDAD DE 0,1% A 50% EN PESO REFERIDO AL POLIMERO; LA TEMPERATURA DE TRANSICION VITREA DEL POLIMERO ES INFERIOR A LOS 60�C, PREFERIBLEMENTE ENTRE -30�C Y 20�C. ES UTIL COMO ADHESIVO PARA EL RECUBRIMIENTO DE PELICULAS POLIMERICAS CON PAPEL, CON PELICULAS DE ALUMINIO O CON OTRAS PELICULAS POLIMERICAS

    36.
    发明专利
    未知

    公开(公告)号:DE50307656D1

    公开(公告)日:2007-08-23

    申请号:DE50307656

    申请日:2003-05-21

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing an aqueous polymer dispersion having a polymer solids content of >=50% by weight by carrying out the radically initiated aqueous emulsion polymerization of ethylenically unsaturated compounds (monomers). The inventive method is characterized in that: a) a mixture is provided in a polymerization vessel and contains a partial quantity 1 consisting of: deionized water, 0.001 to 0.5 parts by weight of a polymer with a weighted average particle diameter of =80% [polymerization step A], and; b) afterwards, a monomer emulsion containing partial quantity 2, which consists of deionized water, 0.1 to 5 parts by weight of dispersants and 90 to 99.5 parts by weight of monomers, is fed under polymerization conditions to the obtained reaction mixture [polymerization step B], whereby; c) the total amount of the monomers used for the polymerization is equal to 100 parts by weight, and the total amount of deionized water is

    METHOD FOR PRODUCING AN AQUEOUS POLYMER DISPERSION

    公开(公告)号:AU2003247284A1

    公开(公告)日:2003-12-12

    申请号:AU2003247284

    申请日:2003-05-21

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing an aqueous polymer dispersion having a polymer solids content of >=50% by weight by carrying out the radically initiated aqueous emulsion polymerization of ethylenically unsaturated compounds (monomers). The inventive method is characterized in that: a) a mixture is provided in a polymerization vessel and contains a partial quantity 1 consisting of: deionized water, 0.001 to 0.5 parts by weight of a polymer with a weighted average particle diameter of =80% [polymerization step A], and; b) afterwards, a monomer emulsion containing partial quantity 2, which consists of deionized water, 0.1 to 5 parts by weight of dispersants and 90 to 99.5 parts by weight of monomers, is fed under polymerization conditions to the obtained reaction mixture [polymerization step B], whereby; c) the total amount of the monomers used for the polymerization is equal to 100 parts by weight, and the total amount of deionized water is

    39.
    发明专利
    未知

    公开(公告)号:DE59809053D1

    公开(公告)日:2003-08-28

    申请号:DE59809053

    申请日:1998-05-22

    Applicant: BASF AG

    Abstract: Adhesives (I), containing (a) 5-95 wt% adhesive dispersion with a viscosity of 2000-10,000 mPa.s which contains (a1) an aqueous polymer dispersion obtained by radical polymerisation of a mixture (M) containing ethylenically unsaturated monomer(s) (A) to a polymer (P) in presence of a protective colloid based on a water-soluble prepolymer of at least one water-soluble monomer (B) selected from alpha . beta -unsaturated 3-6C mono- or di-carboxylic acids, their anhydrides and half-esters and mixtures thereof, (a2) optionally a base, i.e. alkali metal hydroxide, ammonia or volatile amine, (a3) optionally a completely water-miscible organic solvent, and optionally other additives, (b) 0-90 wt% polysaccharide and/or protein and/or protein degradation product, (c) 0-95 wt% filler(s), (d) 0-10 wt% emulsifier(s), (e) 0-30 wt% other additives, and water to 100 wt%.

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