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    • 15. 发明申请
    • AQUEOUS POLYMER DISPERSION FOR PAPER WITH A COPOLYMER OF VINYL ACETATE AND AN ACRYLATE MONOMER PREPARED IN THE PRESENCE OF A STARCH DERIVATIVE
    • 用淀粉衍生物存在下制备的乙酸乙烯酯和丙烯酸酯单体的共聚物的纸张的水性聚合物分散体
    • WO2015155159A1
    • 2015-10-15
    • PCT/EP2015/057456
    • 2015-04-07
    • BASF SE
    • VELING, NicoJIMENEZ GARCIA, LuciaLAWRENZ, Dirk
    • C09D131/04C08L31/04C08F218/08C08F218/04
    • C09D131/04C08F218/08C08L31/04C08L2201/54C09D5/00D21H19/54D21H19/56D21H21/18C08F2220/1825C08F2220/325C08F228/02C08L3/04C08K3/26
    • The invention relates to a process for preparing an aqueous dispersion of a polymer P, which comprises the emulsion polymerization of vinyl acetate, an acrylate monomer, which is a C 1 -C 10 alkyl acrylate or a C 1 -C 10 methacrylate, an α,β-ethlyenically unsaturated C3-C8 carboxylic acid and at least one out of glycidyl methacrylate, glycidyl acrylate, allyl methacrylate and allyl acrylate, in the presence of a starch derivative. Optionally, an additional monomer is an ethylenically unsaturated sulfonic acid, an ethylenically unsaturated other monomer or both of them. Furthermore, the aqueous polymer dispersion obtainable from this process and a powder form thereof are disclosed. They are useful for a paper coating slip containing one of the aforementioned forms. A paper or a cardboard, which is coated with the paper coating slip, shows surface strength, which is expressed by a good dry pick resistance, a good wet pick resistance or good offset test results. The aqueous polymer dispersion or the powder form thereof is furthermore useful as a binder.
    • 本发明涉及一种制备聚合物P的水性分散体的方法,其包括乙酸乙烯酯的乳液聚合,丙烯酸酯单体,其是丙烯酸C1-C10烷基酯或C1-C10甲基丙烯酸酯,α,β-乙烯基 不饱和C 3 -C 8羧酸和甲基丙烯酸缩水甘油酯中的至少一种,丙烯酸缩水甘油酯,甲基丙烯酸烯丙酯和丙烯酸烯丙酯,在淀粉衍生物存在下进行。 任选地,另外的单体是烯键式不饱和磺酸,烯属不饱和的其它单体或它们两者。 此外,公开了从该方法得到的聚合物水分散体及其粉末形式。 它们对于含有上述形式之一的纸张涂布滑块是有用的。 涂有纸涂层纸的纸或纸板表现出表面强度,其表现为良好的耐干性,耐湿性好或耐偏移性好。 聚合物水分散体或其粉末形式还可用作粘合剂。
    • 18. 发明申请
    • USE OF A COATING LAYER WITH AN ACRYLATE POLYMER ON A PAPER SUBSTRATE FOR BLOCKING OXYGEN TRANSFER
    • 涂料层与丙烯酸酯聚合物在纸基底上的使用用于堵塞氧传送
    • WO2016184799A1
    • 2016-11-24
    • PCT/EP2016/060822
    • 2016-05-13
    • BASF SE
    • SEYFFER, HermannCIMPEANU, Carmen-ElenaSMIT, TheoVELING, NicoSCHMIDT-THUEMMES, JuergenLAWRENZ, DirkBLUM, Rainer
    • D21H27/10D21H27/18D21H19/12D21H19/20D21H19/22D21H19/54D21H19/58D21H21/14
    • D21H19/20C08L25/14C08L33/08C08L53/02D21H19/12D21H19/22D21H19/54D21H19/58D21H21/14D21H27/10D21H27/18
    • The invention relates to a use of a coating layer on a paper substrate for blocking oxygen transfer through the coated paper substrate, wherein the coating layer on the paper substrate is obtainable by a process, which comprises the steps of (a) providing a paper substrate with a surface, (b) applying onto the surface of the provided paper substrate an aqueous coating mass, and (c) drying of the paper substrate with the applied aqueous coating mass to obtain the coated paper substrate, wherein the aqueous coating mass contains an aqueous dispersion of a polymer P, which is obtainable by radically initiated emulsion polymerization of at least 25 parts by weight of a C 1 -C 12 alkyl acrylate or a C 1 -C 12 alkyl methacrylate based on the sum total of the parts by weight of all monomers, which is always 100, in the presence of a first degraded starch. It relates further to a coated paper substrate obtainable with a coating mass comprising the aqueous dispersion of the polymer P and a further saccharide, which is added after the polymerization of the monomers. It relates also to a process for manufacturing the coated paper substrate obtainable with a coating mass comprising the aqueous dispersion of the polymer P and the further saccharide.
    • 本发明涉及一种在纸基底上涂覆层用于阻挡通过涂布纸基材的氧传递的用途,其中纸基材上的涂层可通过一种方法获得,该方法包括以下步骤:(a)提供纸基材 具有表面,(b)在所提供的纸基材的表面上涂覆水性涂料,和(c)用涂布的水性涂料干燥纸基材以获得涂布纸基材,其中所述水性涂料质量包含 聚合物P的水分散体,其通过基于所有单体的重量份的总和至少25重量份的丙烯酸C1-C12烷基酯或甲基丙烯酸C1-C12烷基酯的自发引发的乳液聚合而获得, 其总是为100,在第一降解淀粉存在下。 它涉及一种可用包含聚合物P的水性分散体的涂料组合物和可在单体聚合后加入的另外的糖类的涂布纸基材。 本发明还涉及用包含聚合物P的水性分散体和其他糖类的涂料组合物制成涂布纸基材的方法。