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19 条记录 (耗时 0.011 秒)

    COATING STRUCTURE, SHEET-LIKE PRODUCT AND ITS USE
    1.
    发明申请
    COATING STRUCTURE, SHEET-LIKE PRODUCT AND ITS USE 审中-公开

    公开(公告)号：WO2018229344A1

    公开(公告)日：2018-12-20

    申请号：PCT/FI2018/050464

    申请日：2018-06-14

    申请人： KEMIRA OYJ

    发明人： TURKKI, Tarja

    IPC分类号： D21H27/10 ,  D21H19/40 ,  D21H19/56 ,  D21H19/58 ,  D21H19/82

    摘要： The present invention relates to a coating structure for a sheet-like substrate comprising lignocellulosic fibres. The structure comprises at least one pre-coat layer, which comprises (a) at least 70 weight-% of a first styrene (meth)acrylate copolymer which is polymerised in the presence of a stabiliser, and which has a glass transition temperature Tg ≤ 20 °C, preferably ≤ 10 °C, (b) ≤ 30 weight-% of inorganic platy mineral particles, such as kaolin or talc, and (c) 0.01 – 2 weight-% of at least one first thickener. The coating structure further comprises a top coat layer, which comprises (a) at least 50 weight-% of a second styrene (meth)acrylate copolymer which is polymerised in the presence of a stabiliser, and which has a glass transition temperature Tg ≤ 20 °C, preferably ≤ 10 °C, (b) ≤ 30 weight-% of inorganic mineral particles, (c) 0.01 – 5 weight-% of at least one second thickener, and (d) 0.5 – 30 weight-% of an antiblocking agent. The invention further relates to a sheet-like product comprising coated with a coating structure.

    A PROCESS FOR PRODUCING GYPSUM
    5.
    发明申请
    A PROCESS FOR PRODUCING GYPSUM 审中-公开
    一种生产GYPSUM的方法

    公开(公告)号：WO2008092991A2

    公开(公告)日：2008-08-07

    申请号：PCT/FI2008/000022

    申请日：2008-02-01

    申请人： KEMIRA OYJ ,  TURKKI, Tarja ,  HEISKA, Perttu ,  HAGELBERG, Pasi ,  LAAKSO, Veikko

    发明人： TURKKI, Tarja ,  HEISKA, Perttu ,  HAGELBERG, Pasi ,  LAAKSO, Veikko

    CPC分类号： C01F11/466 ,  C01F11/46 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C09C1/025 ,  Y10T428/2982

    摘要： The invention relates to a process for the preparation of a gypsum product wherein wherein calcium sulphate hemihydrate and/or calcium sulphate anhydrite and water are contacted sothatso that the calsiumcalcium sulphate hemihydrate and/or calcium sulphate anhydrite and the water react with each other and form a gypsum product. The rectionreaction mixture has a dry matter content of 34- 84 % by weight in order to obtain a gypsum product which consists of crystals that are small, flat and of as equal size as possible. The invention also realatesrelates to a product prepared by this process. A gypsum product is formed which consists of essentially intact crystals having a size of between 0.1 and below 2.0 μm. The products are applicapleapplicable e.g. as fillers or coating pigments in e.g. paper industry.

    摘要翻译： 本发明涉及一种制备石膏产品的方法，其中硫酸钙半水合物和/或硫酸钙无水石膏和水接触，硫酸钙半水合物和/或硫酸钙无水石膏和水彼此反应形成 石膏制品。 反应混合物的干物质含量为34-84重量％，以获得由尽可能小的，平坦的和等尺寸的晶体组成的石膏产品。 本发明还实现与通过该方法制备的产品相关。 形成石膏产品，其由基本上完整的晶体组成，其尺寸为0.1至小于2.0μm。 该产品适用于例如 作为例如填料或涂料颜料。 纸业。

    COATING STRUCTURE, SHEET-LIKE PRODUCT AND ITS USE
    6.
    发明申请
    COATING STRUCTURE, SHEET-LIKE PRODUCT AND ITS USE 审中-公开

    公开(公告)号：WO2019243671A1

    公开(公告)日：2019-12-26

    申请号：PCT/FI2019/050478

    申请日：2019-06-19

    申请人： KEMIRA OYJ

    发明人： TURKKI, Tarja ,  PUTTONEN, Sami ,  PEURANEN, Helena ,  OJANEN, Mari ,  HERMANSSON, Erland

    IPC分类号： D21H27/10 ,  B65D65/42 ,  D21H19/20 ,  D21H19/22 ,  D21H19/54 ,  D21H19/60 ,  D21H19/82

    摘要： The invention relates to a coating structure for a sheet-like substrate comprising cellulosic fibres and to a sheet-like product. The structure comprises at least one pre-coat layer and a top coat layer, where the pre-coat layer(s) and the top coat5 layer comprise 10 – 90 weight-% of a styrene (meth)acrylate copolymer which is polymerised in the presence of a stabiliser, and which has a glass transition temperature Tg ≤ 20 °C, preferably ≤ 15 °C, more preferably ≤ 13 °C. Furthermore, the pre-coat layer(s) comprises a polysaccharide, such as starch, and the top coat layer comprises 5 – 60 weight-% of at least one water-soluble coating binder,10 which selected from polysaccharides and polyvinyl alcohols, as well as at the most 5.0 weight-% of a cross-linker, which reacts with –OH or –COOH groups.

    PROCESS FOR THE PREPARATION OF GYPSYM
    7.
    发明申请
    PROCESS FOR THE PREPARATION OF GYPSYM 审中-公开
    制备GYPSYM的方法

    公开(公告)号：WO2011141630A1

    公开(公告)日：2011-11-17

    申请号：PCT/FI2011/050424

    申请日：2011-05-09

    申请人： KEMIRA OYJ ,  TURKKI, Tarja

    发明人： TURKKI, Tarja

    IPC分类号： C01F11/46

    CPC分类号： C01F11/46 ,  C01P2004/03 ,  C01P2004/12 ,  C01P2004/39 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/60

    摘要： The invention relates to a process for the preparation of gypsum comprising mixing a water soluble calcium compound and a water soluble sulphate compound together in the absence or in the essential absence of free water such that gypsum crystals precipitate, wherein at least one of the calcium and sulphate compounds is in the form of a hydrate.

    摘要翻译： 本发明涉及一种制备石膏的方法，包括在不存在或基本不存在游离水的情况下将水溶性钙化合物和水溶性硫酸盐化合物混合在一起，使得石膏晶体沉淀，其中至少一种钙和 硫酸盐化合物是水合物的形式。

    PAPER PRODUCT
    8.
    发明申请
    PAPER PRODUCT 审中-公开
    纸制品

    公开(公告)号：WO2010122221A1

    公开(公告)日：2010-10-28

    申请号：PCT/FI2010/050316

    申请日：2010-04-19

    申请人： KEMIRA OYJ ,  TURKKI, Tarja ,  VIRTANEN, Mikko

    发明人： TURKKI, Tarja ,  VIRTANEN, Mikko

    IPC分类号： D21H17/66 ,  C01F11/46

    CPC分类号： D21H17/67 ,  C01F11/466 ,  C01P2004/03 ,  D21H17/66 ,  D21H17/69 ,  D21H19/38 ,  D21H25/14

    摘要： The invention relates to a supercalendered paper product comprising first cellu- losic fibres and a gypsum -fibre composite product as a filler pigment or coating pigment, wherein the gypsum in the gypsum -fibre composite product appears as crystals on the surface of the fibre, and wherein the gypsum crystals are obtained by contacting calcium sulphate hemihydrate and/or calcium sulphate anhydrite and an aqueous second fibre suspension. The invention also relates to a process for producing a supercalendered paper product.

    摘要翻译： 本发明涉及一种包含第一纤维素纤维和作为填料颜料或涂料颜料的石膏纤维复合产品的超级压光纸产品，其中石膏纤维复合产品中的石膏在纤维的表面上以晶体形式出现，以及 其中所述石膏晶体通过使硫酸钙半水合物和/或硫酸钙无水石膏和水性第二纤维悬浮液接触而获得。 本发明还涉及一种用于生产超级压光纸产品的方法。

    GYPSUM PRODUCT AND PROCESS FOR ITS PREPARATION
    9.
    发明申请
    GYPSUM PRODUCT AND PROCESS FOR ITS PREPARATION 审中-公开
    石膏制品及其制备方法

    公开(公告)号：WO2008092990A2

    公开(公告)日：2008-08-07

    申请号：PCT/FI2008/000021

    申请日：2008-02-01

    申请人： KEMIRA OYJ ,  AKSELA, Reijo ,  GRÖNFORS, Outi ,  HAGELBERG, Pasi ,  HEISKA, Perttu ,  KANGASLAHTI, Hanna-Mari ,  KERÄLÄ, Jori ,  REUNANEN, Jarmo ,  TIRRONEN, Esko ,  TURKKI, Tarja

    发明人： AKSELA, Reijo ,  GRÖNFORS, Outi ,  HAGELBERG, Pasi ,  HEISKA, Perttu ,  KANGASLAHTI, Hanna-Mari ,  KERÄLÄ, Jori ,  REUNANEN, Jarmo ,  TIRRONEN, Esko ,  TURKKI, Tarja

    CPC分类号： C01F11/466 ,  C01F11/46 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C09C1/025 ,  Y10T428/2982

    摘要： The invention relates to a gypsum product which consists of essentially intact crystals having a size of between 0.1 and below 2.0 μm. The product is especially suitable as a coating pigment or filler in paper manufacture. The invention also relates to a process for the preparation of a gypsum product, wherein calcium sulphate hemihydrate and/or calcium sulphate anhydrite, water and a crystallization habit modifier are contacted so that the calcium sulphate hemihydrate and/or calcium sulphate anhydrite and the water are reacted with each other and form a crystalline gypsum product. The calcium sulphate hemihydrate and/or calcium sulphate anhydrite is/are used in such an amount that the reaction mixture formed from the calcium sulphate hemihydrate and/or calcium sulphate anhydrite, the water and the crystallization habit modifier has a dry matter content of between 50 and 84 % by weight. Then, said gypsum product can be formed which consists of essentially intact crystals having a size of between 0.1 and below 2.0 μm.

    摘要翻译： 本发明涉及一种石膏产品，其由尺寸为0.1至小于2.0μm的基本上完整的晶体组成。 该产品特别适合作为纸张制造中的涂料颜料或填料。 本发明还涉及制备石膏产品的方法，其中使硫酸钙半水合物和/或硫酸钙硬石膏，水和结晶习性改性剂接触，使得硫酸钙半水合物和/或硫酸钙硬石膏和水是 彼此反应并形成结晶石膏产品。 硫酸钙半水合物和/或硫酸钙硬石膏的用量使得由硫酸钙半水合物和/或硫酸钙硬石膏形成的反应混合物，水和结晶习性调节剂的干物质含量为50 和84重量％。 然后，可以形成所述石膏产品，其由基本上完整的晶体组成，所述晶体的尺寸为0.1至小于2.0μm。