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    AQUEOUS POLYMER DISPERSION FOR PAPER WITH A COPOLYMER OF VINYL ACETATE AND AN ACRYLATE MONOMER PREPARED IN THE PRESENCE OF A STARCH DERIVATIVE
    4.
    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 审中-公开
    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

    公开(公告)号：US20170029650A1

    公开(公告)日：2017-02-02

    申请号：US15303337

    申请日：2015-04-07

    Applicant: BASF SE

    Inventor： Nico VELING ,  Lucia JIMENEZ GARCIA ,  Dirk LAWRENZ

    IPC: C09D131/04 ,  C08L31/04 ,  D21H21/18 ,  D21H19/56 ,  D21H19/54 ,  C08F218/08 ,  C09D5/00

    CPC classification number: C09D131/04 ,  C08F218/08 ,  C08F228/02 ,  C08L3/04 ,  C08L31/04 ,  C08L2201/54 ,  C09D5/00 ,  D21H19/54 ,  D21H19/56 ,  D21H21/18 ,  C08F2220/1825 ,  C08F2220/325 ,  C08K3/26

    Abstract: 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 C1-C10 alkyl acrylate or a C1-C10 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.

    Abstract translation: 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。

    PREPARATION OF POLYISOCYANATES CONTAINING IMINOOXADIAZINEDIONE GROUPS AND THEIR USE
    5.
    发明申请
    PREPARATION OF POLYISOCYANATES CONTAINING IMINOOXADIAZINEDIONE GROUPS AND THEIR USE 有权

    公开(公告)号：US20250019483A1

    公开(公告)日：2025-01-16

    申请号：US18709569

    申请日：2022-11-11

    Applicant: BASF SE

    Inventor： Frederic LUCAS ,  Nico VELING ,  Kerstin HEINEN ,  Harald SCHAEFER ,  Jens SCHEIDEL ,  Thomas GENGER

    IPC: C08G18/16 ,  C08G18/02

    Abstract: A process for the preparation of polyisocyanates containing iminooxadiazinedione groups, comprising reacting at least one (cyclo)aliphatic diisocyanate in the presence of at least one oligomerization catalyst, and when the reaction has reached a predeterminable degree of conversion, based on the (cyclo)aliphatic diisocyanates, stopping the reaction by addition of at least one catalyst poison for the oligomerization catalyst, wherein the oligomerization catalyst is a salt containing a fluoride or poly(hydrogen)fluoride [F−×(HF)m] as anion and the catalyst poison is a solution containing at least one alcohol comprising at least 6 carbon atoms as solvent and wherein m is a number between 0.01 and 20.

    METHOD FOR PRODUCING AN AQUEOUS POLYMER DISPERSION FROM VINYLAROMATIC COMPOUND AND CONJUGATED ALIPHATIC DIENE
    6.
    发明申请
    METHOD FOR PRODUCING AN AQUEOUS POLYMER DISPERSION FROM VINYLAROMATIC COMPOUND AND CONJUGATED ALIPHATIC DIENE 有权

    公开(公告)号：US20220033550A1

    公开(公告)日：2022-02-03

    申请号：US17299657

    申请日：2019-11-21

    Applicant: BASF SE

    Inventor： Dirk LAWRENZ ,  Nico VELING ,  Carmen-Elena CIMPEANU

    IPC: C08F212/08 ,  C08F236/06 ,  C09D109/06 ,  C08F2/22 ,  C08K3/013 ,  C08K5/14

    Abstract: The present invention relates to a process for producing an aqueous polymer dispersion by free-radically initiated aqueous emulsion polymerization, by polymerizing, in an aqueous medium, (a) 40 to 75 parts by weight of at least one vinylaromatic compound and (b) 24.9 to 59.9 parts by weight of at least one conjugated aliphatic diene (c) 0.1 to 10 parts by weight of at least one monomer comprising acid groups and (d) 0 to 20 parts by weight of at least one other monoethylenically unsaturated monomer, the amounts of the monomers (a) to (d) adding up to 100 parts by weight, in a monomer feed process in the presence of a free-radical initiator, with the proviso that the vinylaromatic compound is metered in under polymerization conditions in a continuous mass flow over a period of at least 120 minutes, the metering of the conjugated aliphatic diene is started at a time at which at least 5% and not more than 30% of the vinylaromatic compound has already been metered in in a continuous mass flow and optionally, the polymerization is initiated in an aqueous polymerization mixture comprising up to 5% of the vinylaromatic compound and comprising no aliphatic diene, and also to the aqueous polymer dispersions produced by the process and to the use of these as a binder, adhesive, sizing agent for fibers, for the production of coatings or for the production of a paper coating slip.

    METHOD FOR PREPARING AN AQUEOUS POLYMER DISPERSION FROM A VINYL AROMATIC COMPOUND AND A CONJUGATED ALIPHATIC DIENE
    7.
    发明申请
    METHOD FOR PREPARING AN AQUEOUS POLYMER DISPERSION FROM A VINYL AROMATIC COMPOUND AND A CONJUGATED ALIPHATIC DIENE 有权

    公开(公告)号：US20220033534A1

    公开(公告)日：2022-02-03

    申请号：US17299680

    申请日：2019-11-21

    Applicant: BASF SE

    Inventor： Nico VELING ,  Carmen-Elena CIMPEANU ,  Dirk LAWRENZ

    IPC: C08F2/22 ,  C08F2/38 ,  C08F212/08 ,  C08F220/06 ,  C08F222/02 ,  C08F236/06 ,  C08F236/08 ,  C08K5/14 ,  D21H19/58

    Abstract: The present invention relates to a process for producing an aqueous polymer dispersion by free-radically initiated aqueous emulsion polymerization, by polymerizing, in an aqueous medium,
    (a) 40 to 75 parts by weight of at least one vinylaromatic compound and (b) 24.9 to 59.9 parts by weight of at least one conjugated aliphatic diene (c) 0.1 to 10 parts by weight of at least one monomer comprising acid groups and (d) 0 to 20 parts by weight of at least one other monoethylenically unsaturated monomer, the amounts of the monomers (a) to (d) adding up to 100 parts by weight, in a monomer feed process in the presence of at least one inorganic peroxide and at least one organic peroxide, with the proviso that the continuous metering of the inorganic peroxide starts at the same time as the continuous metering of the vinylaromatic compound, the metering of the organic peroxide is started at a time at which at least 5% and not more than 20% of the vinylaromatic compound has already been metered in in a continuous mass flow under polymerization conditions and optionally a portion of the inorganic peroxide is initially charged, and also to the aqueous polymer dispersions produced by the process and to the use of these as a binder, adhesive, sizing agent for fibers, for the production of coatings or for the production of a paper coating slip.

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