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    Procedimiento para la obtención de papel crepé
    33.
    发明专利
    Procedimiento para la obtención de papel crepé 未知

    公开(公告)号：ES2426366T3

    公开(公告)日：2013-10-22

    申请号：ES05747981

    申请日：2005-05-19

    Applicant: BASF SE

    Inventor： LINHART FRIEDRICH ,  ESSER ANTON ,  KANNENGIESSER DETLEF

    IPC: D21H21/14

    Abstract: Procedimiento para la obtención de papel crepé mediante pegado de un rollo de papel con ayuda de un polímeroorgánico sintético como agente adhesivo en un cilindro de creponado, recalcado y despegado del papel crepé delcilindro de creponado, caracterizado porque como polímero orgánico sintético se emplea (ii) productos de reacción de polietilenimina de un peso molecular Mw de 500 a 1 millón con al menos undiceteno de alquilo con 14 a 22 átomos de carbono, un ácido monocarboxílico, un éster de un ácidomonocarboxílico, o un cloruro de ácido de un ácido monocarboxílico y/o (iii) productos de reacción de polialquilenpoliaminas con un peso molecular de 300 a 1 millón con al menosun éter de bisclorhidrina o éter de bisglicidilo de un polialquilenglicol con un peso molecular MN de 300 a3000.

    PRODUCTION OF PAPER
    38.
    发明专利
    PRODUCTION OF PAPER 未知

    公开(公告)号：CA2726500A1

    公开(公告)日：2009-12-30

    申请号：CA2726500

    申请日：2009-06-09

    Applicant: BASF SE

    Inventor： HAEHNLE HANS-JOACHIM ,  ESSER ANTON

    IPC: D21H21/20

    Abstract: The invention relates to the use of water-soluble, amphoteric copolymers which can be obtained by the copolymerization of a) at least one N-vinyl carboxylic acid amide of general formula (I), wherein R1 and R2 independently represent H or C1 to C6 alkyl, b) at least one monomer which is selected from the group consisting of (b1) monoethylenically unsaturated sulfonic acids, phosphonic acids, phosphoric esters and derivatives thereof, and (b2) monoethylenically unsaturated monocarboxylic acids and dicarboxylic acids, the salts thereof and dicarboxylic anhydrides, c) optionally at least one monoethylenically unsaturated monomer which is different from components (a) and (b), and d) optionally at least one compound which has at least two ethylenically unsaturated double bonds in the molecule, with the proviso that the monomer mixture contains at least one monomer (b) with at least one free acid group and/or an acid group in the ionic form, and subsequent partial or complete hydrolysis of the groups -CO-R1 from the monomers (a) that are polymerized into the copolymer. The copolymers according to the invention are used as agents for increasing the initial wet strength of paper.

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