公开(公告)号：US06787205B1

公开(公告)日：2004-09-07

申请号：US09830869

申请日：2001-10-10

申请人： Yrjö Aho ,  Tapani Penttinen ,  Risto Salminen ,  Bruce Foster

发明人： Yrjö Aho ,  Tapani Penttinen ,  Risto Salminen ,  Bruce Foster

IPC分类号： B32B2708

CPC分类号： B32B27/12 ,  B32B27/10 ,  B32B27/36 ,  B32B2307/306 ,  B32B2367/00 ,  B32B2439/70 ,  B65D5/563 ,  B65D81/343 ,  B65D2577/2025 ,  B65D2581/3437 ,  Y10S220/912 ,  Y10T428/1303 ,  Y10T428/1352 ,  Y10T428/24942 ,  Y10T428/27 ,  Y10T428/273 ,  Y10T428/277 ,  Y10T428/31786 ,  Y10T428/3179 ,  Y10T428/3188 ,  Y10T428/31895 ,  Y10T428/31993

摘要： The invention relates to a coated food paperboard (1), to the manufacturing process and use of the same, and to products obtained thereof. The paperboard (1) comprises one or several fibre material layers (2), such as a three-layer structure consisting of a middle layer (4) of a mixture of sulphate pulp and CTMP and of sulphate pulp layers (5) on both sides of it, and of a polymeric coating (3) getting into contact with food, either on one side or on both sides of the paperboard. According to the invention, the coating (3) consists of an outer layer (6), the melting point of the polymer used in which is at least 230° C., and of an inner layer (7) placed against the fibre material layer (5); in this inner layer, a polymer with a melting point of at least 230° C. is blended with another adhesive polymer, the melting point of which is 130-185° C. Further, the inner layer (7) may be provided with mineral substance, such as calcium carbonate. In accordance with the invention, the paperboard (1) is manufactured by coextrusion of superimposed polymeric layers (6, 7). The paperboard (1) of the invention is suitable for liquid packaging or oven board, and products manufactured of the paperboard comprise especially oven dishes and consumer packages for food, which include the dish and which may be heated as such.

摘要翻译： 本发明涉及一种涂覆食品纸板（1），其制造方法及其用途及其获得的产品。 纸板（1）包括一个或多个纤维材料层（2），例如由硫酸盐纸浆和CTMP的混合物的中间层（4）和两侧的硫酸盐纸浆层（5）组成的三层结构 以及在纸板的一侧或两侧与食品接触的聚合物涂层（3）。 根据本发明，涂层（3）由外层（6）组成，其中使用的聚合物的熔点至少为230℃，内层（7）位于纤维材料层 （5）; 在该内层中，熔点至少为230℃的聚合物与另一粘合剂聚合物共混，粘合剂聚合物的熔点为130-185℃。此外，内层（7）可以具有矿物 物质，如碳酸钙。 根据本发明，纸板（1）通过叠加的聚合物层（6,7）的共挤出制造。 本发明的纸板（1）适用于液体包装或烤箱板，由纸板制成的产品特别包括烤箱和用于食品的消费品包装，其包括餐具，并且可以被加热。

公开(公告)号：US06531196B1

公开(公告)日：2003-03-11

申请号：US09424041

申请日：2000-01-18

申请人： Yrjö Aho ,  Tomi Kimpimäki ,  Kari Nurmi ,  Tapani Penttinen ,  Kimmo Santamäki ,  Kari Yrjölä

发明人： Yrjö Aho ,  Tomi Kimpimäki ,  Kari Nurmi ,  Tapani Penttinen ,  Kimmo Santamäki ,  Kari Yrjölä

IPC分类号： D21J108

CPC分类号： D21H19/40 ,  B65D65/42 ,  D21H11/04 ,  D21H11/08 ,  D21H11/14 ,  D21H19/22 ,  D21H19/58 ,  D21H19/822 ,  D21H19/826 ,  D21H21/52 ,  D21H27/10 ,  D21H27/38 ,  Y10T428/1303 ,  Y10T428/1307

摘要： The invention relates to coated board, a process for its manufacture, and containers and packaging formed therefrom. The board comprises at least one polymer-based coat preventing the transmission of liquids and gases, which coat is according to the invention made from a polymer dispersion to which talc particles are added so that talc will constitute 30-80% of the dry weight of the dried coat. The coating is applied onto the board during its manufacture as on-line coating. The board may be, for example, a multi-layer board (2) which has a middle layer (6) containing CTMP or other similar mechanical pulp, on its both sides outer layers (7) formed from sulfate pulp, against these on both sides of the board (2) talc-containing polymeric barrier layers (3), and on one side of the board a heat sealing layer (9) introduced onto the barrier layer (3).

摘要翻译： 本发明涉及涂覆板，其制造方法以及由其形成的容器和包装。 该板包含至少一种基于聚合物的涂层，防止液体和气体的传播，根据本发明的涂层是由添加滑石颗粒的聚合物分散体制成的，因此滑石将占干粉重量的30-80％ 干的外套。 在制造期间将涂层施加到板上作为在线涂覆。 板可以是例如在其两侧由硫酸盐纸浆形成的外层（7）上具有包含CTMP或其它类似的机械纸浆的中间层（6）的多层板（2） 板的侧面（2）含滑石的聚合物阻挡层（3），并且在板的一侧上引入到阻挡层（3）上的热封层（9）。