DISPERSIONES ACUOSAS DE COPOLIMERIZADOS, SU PREPARACION Y USO

    公开(公告)号:AR045605A1

    公开(公告)日:2005-11-02

    申请号:ARP040103203

    申请日:2004-09-07

    Applicant: BASF AG

    Abstract: Reivindicación 1: Dispersiones acuosas de copolimerizados, que se pueden preparar por copolimerización iniciada por radicales de (A) por lo menos un anhidrido de ácido dicarboxílico etilénicamente insaturado, derivado de por lo menos un ácido dicarboxílico con 4 a 8 átomos de C, (B) por lo menos un oligómero de alqueno C3-10 ramificado o no ramificado, donde por lo menos un oligómero presenta un peso molecular medio Mn de 300 a 5000g/mol. O por oligomerización de por lo menos 3 equivalentes de alqueno C3-10, (C) opcionalmente, por lo menos un comonómero etilénicamente insaturado diferente de (A), y, opcionalmente, reacción con (D) por lo menos un compuesto de la fórmula general 1a o 1b seguida de la mezcla con agua, teniendo las variables en las fórmula 1a y 1b las definiciones siguientes: A1 son alquilenos C2-20, iguales o diferentes, R1 es alquilo C1-30, lineal o ramificado, fenilo o H, n es un número entero de 1 a 200 oscilando el contenido de agua de 30 a 99,5% en peso, con respecto a la dispersión acuosa.

    13.
    发明专利
    未知

    公开(公告)号:DE502004002810D1

    公开(公告)日:2007-03-15

    申请号:DE502004002810

    申请日:2004-09-14

    Applicant: BASF AG

    Abstract: A process for preparing copolymers which comprises copolymerizing (A) at least one ethylenically unsaturated dicarboxylic anhydride derived from at least one dicarboxylic acid having 4 to 8 carbon atoms, (B) at least one vinylaromatic compound, and (C) optionally at least one non-(A) ethylenically unsaturated comonomer containing at least one heteroatom, (D) reacting the copolymer with at least one compound of the formula I a or I b where A 1 is C 2 -C 20 alkylene, identical or different, R 1 is C 1 -C 30 alkyl, linear or branched, and n is an integer from 1 to 200, hydrolyzing the product with water or an aqueous alkaline solution, and subsequent to hydrolysis adding further free-radical initiator.

    14.
    发明专利
    未知

    公开(公告)号:BRPI0412691A

    公开(公告)日:2006-10-03

    申请号:BRPI0412691

    申请日:2004-07-03

    Applicant: BASF AG

    Abstract: Preparation of leather involves treating unhaired hide, pickled unhaired hide or semi-finished leather with a polymer (A) obtained by copolymerization of: one or more of 3-8C monoethylenically unsaturated mono- or dicarboxylic acids or their anhydrides; vinyl aromatic compound(s); alkoxylated unsaturated ether(s) (I); and optionally further monoethylenically unsaturated monomers. The copolymers (A) are new. Preparation of leather involves treating unhaired hide, pickled unhaired hide or semi-finished leather with a polymer (A) obtained by copolymerization of: (1) one or more of 3-8C monoethylenically unsaturated mono- or dicarboxylic acids or their anhydrides, (2) vinyl aromatic compound(s), (3) alkoxylated unsaturated ether(s) of formula (I) and optionally (4) further monoethylenically unsaturated monomers. [Image] R 1>- R 5>H or Me; R 6>H, SO 3M, PO 3M 2, CHO, (1-20C) alkylcarbonyl or (6-14C) arylcarbonyl; M : alkali metal, NH 4+>or Me; n : 3-100; y : 0-10. Independent claims are included for: (a) the polymers (A) as new; (b) the preparation of (A); and (c) aqueous dispersions containing up to 50 wt. % (A).

    15.
    发明专利
    未知

    公开(公告)号:BRPI0407941A

    公开(公告)日:2006-02-21

    申请号:BRPI0407941

    申请日:2004-03-12

    Applicant: BASF AG

    Abstract: Passivating layer (I) on a metallic surface is prepared by contacting the surface with a composition comprising a water-soluble, nitrogen-containing polymer that is a base, whereby an aqueous solution of the polymer forms a precipitate at the metal surface upon addition of one or more metal salts at a pH of less than 7. Independent claims are included for: (a) metallic surfaces having the passivating layer (I); (b) a construction (II) comprising a metallic surface, the passivating layer (I) and further paint layers and; (c) a process for the formation of the construction (II) by formation of the passivating layer (I) on the metallic surface followed by painting.

    PROCEDIMIENTO PARA LA PRERPARACIÓN DE COPOLÍMEROS

    公开(公告)号:AR045604A1

    公开(公告)日:2005-11-02

    申请号:ARP040103202

    申请日:2004-09-07

    Applicant: BASF AG

    Abstract: Procedimiento para la preparación de copolímeros, caracterizado porque se copolimerizan; (A) por lo menos un anhidrido de ácido dicarboxílico etilénicamente insaturado, derivado de por ,lo menos un ácido dicarboxílico con 4 a 8 átomos de C; (B) por lo menos un compuesto vinilaromático y (C) opcionalmente por lo menos un comonómero etilénicamente insaturado diferente de (A) con por lo menos un heteroátomo, se hace reaccionar (D) con por lo menos un compuesto de la fórmula general 1a o 1b, se hidroliza con agua o una solución alcalina acuosa y después de la hidrólisis se agrega nuevamente un iniciador de radicales, definiéndose las variables en la fórmula 1a y 1b como sigue: A1 alquileno C2-20, igual o diferente; R1 alquilo C1-30, lineal o ramificado, n un número entero de 1 a 200.

    Producing aqueous copolymer dispersions, e.g. useful for treating leather, comprises copolymerizing an ethylenically unsaturated dicarboxylic acid anhydride and an alkene oligomer and adding water

    公开(公告)号:DE10353557A1

    公开(公告)日:2005-06-16

    申请号:DE10353557

    申请日:2003-11-14

    Applicant: BASF AG

    Abstract: Producing aqueous copolymer dispersions with a water content of 30-99.5 wt.% comprises radical copolymerization of an ethylenically unsaturated dicarboxylic acid anhydride having 4-8 carbon atoms, an oligomer of an alkene having 3-10 carbon atoms and optionally an ethylenically unsaturated comonomer, optionally reacting the product with an alkoxylated alcohol (Ia) or alkoxylated amine (Ib), and adding water. Producing aqueous copolymer dispersions with a water content of 30-99.5 wt.% comprises radical copolymerization of an ethylenically unsaturated dicarboxylic acid anhydride having 4-8 carbon atoms, an oligomer of an alkene having 3-10 carbon atoms, where the oligomer has a molecular weight of 300-5000 or is produced by oligomerising at least 3 equivalents of the alkene, and optionally an ethylenically unsaturated comonomer, optionally reacting the product with an alkoxylated alcohol of formula (Ia) or alkoxylated amine of formula (Ib), and adding water. HO(A 1>O) nR 1> (Ia) H 2N(A 1>O) nR 1> (Ib) A 1>2-20C alkylene; R 1>1-30C alkyl, phenyl or H; n : 1-200. Independent claims are also included for: (1) aqueous copolymer dispersions produced as above; (2) treatment of fibrous substrates using the dispersions; (3) fibrous substrates treated as above; (4) copolymers produced by radical copolymerization of an anhydride, oligomer and optional comonomer as above, reaction with (Ia) or (Ib) and optional hydrolysis; (5) impregnating flat substrates with dispersions or copolymers as above.

    20.
    发明专利
    未知

    公开(公告)号:DE10304959A1

    公开(公告)日:2004-08-19

    申请号:DE10304959

    申请日:2003-02-06

    Applicant: BASF AG

    Abstract: In a process for the production of leather, pelts, pickled pelts or semifinished products are treated with at least one polymer which is obtainable by copolymerization of at least one ethylenically unsaturated dicarboxylic anhydride (A), derived from at least one dicarboxylic acid of 4 to 8 carbon atoms, at least one vinylaromatic compound (B) and optionally at least one ethylenically unsaturated monomer (C) which differs from (A) and has a hetero atom, reaction with at least one compound (D) of the formula Ia or Ib at least 0.55 equivalent, based on (A), of (D) being used, and optionally hydrolysis with water or aqueous alkaline solution, where, in formulae Ia and Ib, the variables are defined as follows: A 1 are identical or different and are C 2 -C 6 -alkylene R 1 is linear or branched C 1 -C 20 -alkyl, and n is an integer from 6 to 200.

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