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    FINE-PARTICLED POLYMER DISPERSIONS CONTAINING STARCH
    91.
    发明专利
    FINE-PARTICLED POLYMER DISPERSIONS CONTAINING STARCH 未知

    公开(公告)号：CA2613184A1

    公开(公告)日：2007-01-04

    申请号：CA2613184

    申请日：2006-06-23

    Applicant: BASF AG

    Inventor： ETTL ROLAND ,  KUKULA HILDEGARD

    IPC: C08F2/24 ,  D21H17/37

    Abstract: The invention relates to fine-particled polymer dispersions which contain starch and which are obtained by emulsion copolymerisation with redox initiators of ethylenically unsaturated monomers from the group containing ( a) 45 - 55 wt. % of at least one, optionally substituted, styrene, methacrylic acid methylester, acrylonitrile and/or methacrylonitrile, (b) 15 - 29 wt.- % of at least one acrylic acid-C1-C12-alkyl ester and/or a methacrylic acid-C2 - C12-alkyl ester and, (c) 0 - 10 wt.- % of at least one other ethylenically unsaturated copolymerisable monomer, in an aqueous medium in the presence of (d) 15 - 35 wt. % of a degraded cationised starch, which has a molar mass Mw of between 1000 - 65 000. The total (a) + (b) + (c) + (d) = 100 % and refers to the total content of solid material. The invention also relates to a meth od for producing said type of polymer dispersions by means of emulsion polymerisation of the monomers (a), (b) and (c) in an aqueous medium with redox initiators in the presence of (d) cationic starch and to the use of polymer dispersions containing starch as resizing agents for paper, pulp and cardboard.

    FINE-PARTICLED AMPHOTERIC AQUEOUS POLYMER DISPERSION METHOD FOR PRODUCTION AND USE THEREOF
    94.
    发明专利
    FINE-PARTICLED AMPHOTERIC AQUEOUS POLYMER DISPERSION METHOD FOR PRODUCTION AND USE THEREOF 未知

    公开(公告)号：CA2565710A1

    公开(公告)日：2005-12-22

    申请号：CA2565710

    申请日：2005-06-03

    Applicant: BASF AG

    Inventor： ETTL ROLAND ,  STURM BERNHARD ,  DYLLICK-BRENZINGER RAINER ,  KUKULA HILDEGARD

    IPC: C08F212/08 ,  C08F2/06 ,  C08F212/10 ,  C08F220/34 ,  C08F220/36 ,  C08F220/60 ,  C08F257/02 ,  C14C11/00 ,  D21H11/14 ,  D21H17/37 ,  D21H17/45 ,  D21H21/16

    Abstract: Finely divided, amphoteric, aqueous polymer dispersions which are obtainable by a two-stage polymerization, a prepolymer being prepared in the first polymerization stage from a monomer mixture comprising (a) from 15 to 40% by weight of at least one (meth)acrylate and/or (meth)acrylamide having in each case a free amino group, protonated amino group and/or quaternized amino group, (b) from 40 to 70% by weight of at least one optionally substituted styrene, (c) from 0 to 25% by weight of acrylonitrile and/or methacrylonitrile, (d) from 0.5 to 5% by weight of at least one ethylenically unsaturated monomer comprising acid groups and (e) from 0 to 30% by weight of at least one nonionic, ethylenically unsaturated monomer differing from (b) and (c), the sum of (a)+(b)+(c)+(d)+(e) being 100% by weight, in a solution polymerization in a solvent partly to completely miscible with water, water then being added to the solution/dispersion of the prepolymer and then at least one nonionic, ethylenically unsaturated monomer being subjected to an emulsion polymerization in the aqueous solution of the prepolymer in a second polymerization stage, processes for the preparation of the polymer dispersions by two-stage polymerization and use of the polymer dispersions as sizes for paper, board and cardboard.

    AQUEOUS ALKYLDIKETENE DISPERSIONS AND THEIR USE AS SIZE FOR PAPER
    98.
    发明专利
    AQUEOUS ALKYLDIKETENE DISPERSIONS AND THEIR USE AS SIZE FOR PAPER 未知

    公开(公告)号：CA2231541C

    公开(公告)日：2005-04-05

    申请号：CA2231541

    申请日：1996-10-25

    Applicant: BASF AG

    Inventor： BONN JOHANN ,  REUTHER WOLFGANG ,  LORENCAK PRIMOZ ,  ETTL ROLAND

    IPC: C07C45/90 ,  C07C49/88 ,  C09K23/00 ,  D06M13/13 ,  D06M15/11 ,  D21H17/09 ,  D21H17/10 ,  D21H17/17 ,  D21H17/23 ,  D21H17/29 ,  D21H21/16 ,  D21H17/72

    Abstract: The invention concerns aqueous alkyldiketene dispersions containing an alkyldiketene, cationic starch with an amylopectin content of at least 95 % by wt. and the following anionic dispersants: (a) 0.05 to 1 .0 % by wt. of lignin sulphonic acid, condensation products of naphtalene sulphonic acid and formaldehyde, sulphonated polystyrene or salts or mixtures of such polymers and (b) 0.05 to 1.5 % by wt. of sulphuric acid half esters of alcohols with at least 10 C-atoms, mono- or diphosphoric acid half esters of alkoxylated alcohols with at least C-atoms, sulphuric acid half esters of alkoxylated alcohols with at least 10 C- atoms, mono- or diphosphoric acid esters of alkoxylated alcohols with at least 10 C-atoms, C12-C30 alkyl sulphonic acids or salts or mixtures of such compounds. The invention also concerns the use of such alkyldiketene dispersions as bulk size in the manufacture of paper, paperboard and cardboard, as well as in making cellulose fibres water-repellent.

    PACKAGING MATERIAL CONSISTING OF AN AT LEAST DOUBLE-LAYERED COMPOSITE MATERIAL FOR PRODUCING CONTAINERS FOR PACKING LIQUIDS
    99.
    发明专利
    PACKAGING MATERIAL CONSISTING OF AN AT LEAST DOUBLE-LAYERED COMPOSITE MATERIAL FOR PRODUCING CONTAINERS FOR PACKING LIQUIDS 未知

    公开(公告)号：CA2525626A1

    公开(公告)日：2004-11-25

    申请号：CA2525626

    申请日：2004-05-06

    Applicant: BASF AG

    Inventor： CHAMP SIMON ,  ETTL ROLAND

    IPC: B32B29/00 ,  B32B15/12 ,  B32B27/10 ,  B32B29/06 ,  D21H19/04 ,  D21H19/20 ,  D21H19/22 ,  D21H19/30 ,  D21H19/78 ,  D21H19/84 ,  D21H21/16 ,  D21H27/10

    Abstract: The invention relates to a packaging material consisting of an at least doub le- layered composite comprising paper or cardboard which is glued into the mass by means of a polymer gluing agent and at least one film which is impermeabl e to water, for producing containers for packing liquids. The invention also relates to the use of paper products for producing containers for packing liquids, especially drinks, said paper products being respectively obtained by (i) gluing a paper material consisting of an aqueous suspension of cellulose fibres into the mass by means of at least one polymer gluing agent or a polymer gluing agent and an aqueous dispersion of an alkyl ketene dimer or t he mixtures thereof in the presence of a retention agent and optionally a water - soluble aluminium compound and optionally at least one cationic polymer, (ii ) the paper material is drained on the wire of a paper machine, (iii) the pape r product is dried, and (iv) the paper product is laminated on one or both sid es with a plastic or metal film.

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