公开(公告)号：EP1756674B1

公开(公告)日：2010-04-21

申请号：EP05756356.1

申请日：2005-06-16

申请人： Stora Enso Oyj

发明人： RÄSÄNEN, Jari ,  LAHTI, Johanna ,  SAVOLAINEN, Antti ,  KUUSIPALO, Jurkka

IPC分类号： G03G7/00

CPC分类号： G03G7/0053 ,  G03G7/004 ,  Y10T428/24802 ,  Y10T428/24901 ,  Y10T428/24934 ,  Y10T428/2495 ,  Y10T428/26 ,  Y10T428/266 ,  Y10T428/273 ,  Y10T428/277 ,  Y10T428/31855 ,  Y10T428/31895 ,  Y10T428/31899 ,  Y10T428/31993

公开(公告)号：EP2911879A1

公开(公告)日：2015-09-02

申请号：EP13849837.3

申请日：2013-10-23

申请人： Stora Enso Oyj

发明人： NEVALAINEN, Kimmo ,  RIBU, Ville ,  KUUSIPALO, Jurkka ,  KOTKAMO, Sami

IPC分类号： B32B37/15 ,  B32B27/10 ,  B65D65/46 ,  C08L67/04 ,  B32B27/36 ,  D21H19/28

CPC分类号： B65D5/563 ,  B05D1/265 ,  B05D7/58 ,  B29C47/0004 ,  B29C47/025 ,  B29C47/065 ,  B29C47/92 ,  B32B7/02 ,  B32B27/08 ,  B32B27/12 ,  B32B27/308 ,  B32B27/36 ,  B32B2270/00 ,  B32B2307/7163 ,  B32B2307/726 ,  B32B2439/02 ,  B32B2439/70 ,  C08L101/16 ,  D21H19/28 ,  D21H19/80 ,  Y10T428/24942

摘要： The invention provides a biodegradable packaging material, a method of manufacturing the same, as well as products made of the material. There is coextruded onto a fibrous substrate (1) a multilayer coating comprising innermost and outermost layers (2, 4) of a blend comprising 20–95 wt-% of a higher melt index polylactide and 5–80 wt-% of another biodegradable polymer such as polybutylene succinate, and a middle layer (3) containing a lower melt index polylactide alone. The goal is to increase machine speed in coextrusion while maintaining good adhesiveness to the substrate and good heat-sealability of the coating. The products include disposable drinking cups and board trays, as well as sealed carton packages for solids and liquids.

公开(公告)号：EP2544957A1

公开(公告)日：2013-01-16

申请号：EP11752917.2

申请日：2011-03-11

申请人： Stora Enso Oyj

发明人： PENTTINEN, Tapani ,  NEVALAINEN, Kimmo ,  KUUSIPALO, Jurkka ,  KOSKINEN, Tapio ,  KOTKAMO, Sami

IPC分类号： B65D65/46 ,  B32B27/12 ,  B32B27/36 ,  C09D167/04 ,  C08L67/04

CPC分类号： B65D65/466 ,  B29C47/065 ,  B32B5/02 ,  B32B27/08 ,  B32B27/10 ,  B32B27/12 ,  B32B27/306 ,  B32B27/308 ,  B32B27/36 ,  B32B37/153 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7163 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2439/40 ,  D21H19/28 ,  D21H19/824 ,  D21H27/00 ,  D21H27/10 ,  Y10T428/31786

摘要： The invention relates to a heat-sealable biodegradable packaging material, its manufacturing method and a product package formed thereof. The packaging material comprises a fibre substrate (1 ), an inner polymeric coating layer (2) against the same, which contains polylactide and a biodegradable polyester that is blended therewith to improve the adhesion between the layer and the fibre substrate, and an outer coating layer (3) that constitutes the outer surface of the material and contains polylactide and a biodegradable polyester that is blended therewith to improve the heat sealing ability of the layer, the portion of polylactide in the inner layer (2) being higher than that in the outer layer (3). The inner and/or outer coating layers (2, 3) can further have blended therewith a small amount of acrylic copolymer that improves the adhesion and/or heat sealing ability. The coating layers can be introduced onto the fibre substrate by extrusion or coextrusion.

公开(公告)号：EP3861167A1

公开(公告)日：2021-08-11

申请号：EP19869925.8

申请日：2019-10-01

申请人： Stora Enso Oyj

发明人： RIBU, Ville ,  NEVALAINEN, Kimmo ,  TORISEVA, Juuso ,  SUOKAS, Esa ,  KUUSIPALO, Jurkka

IPC分类号： D21H19/82 ,  B32B27/10 ,  B32B27/32 ,  C08L23/04

公开(公告)号：EP3097143A1

公开(公告)日：2016-11-30

申请号：EP15740565.5

申请日：2015-01-22

申请人： Stora Enso Oyj

发明人： NEVALAINEN, Kimmo ,  RIBU, Ville ,  RÄSÄNEN, Jari ,  KYLLIÄINEN, Outi ,  ROSLING, Ari ,  KHAJEHEIAN, Mohammad ,  KUUSIPALO, Jurkka ,  KOTKAMO, Sami ,  TOUMINEN, Mikko

IPC分类号： C08J7/18 ,  B29C35/08 ,  B29C71/04 ,  B32B27/10 ,  B65D65/38

摘要： The invention relates to methods for lowering the melt viscosity and thereby improving heat-sealability of a polyester. The invention also relates to a method for manufacturing a heat-sealed container or package from fibrous-based, polyester-coated packaging material, and a method for heat-sealing polyester. The solution according to the invention is subjecting polyester to electron beam (EB) radiation. The lowered melt viscosity allows a lower heat-sealing temperature, and permits sealing of polyester to an uncoated fibrous surface. The preferred polyester for the invention is polylactide, as such or as blended with another polyester.

摘要翻译： 本发明涉及一种用于降低熔体粘度和由此改进的聚酯的可热合性的方法。 因此本发明涉及一种用于制造热密封容器或从fibrous-类，聚酯涂覆的包装材料包装，以及用于热封聚酯的方法的方法。 将溶液gemäß的发明是使聚酯于电子束（EB）辐射。 降低的熔体粘度允许较低的热密封温度，并且允许聚酯的密封，以在未涂覆的纤维表面上。 对于本发明的优选的聚酯是聚交酯，作为搜索或作为混合与另一聚酯。

公开(公告)号：EP2563567A1

公开(公告)日：2013-03-06

申请号：EP11774483.9

申请日：2011-04-27

申请人： Stora Enso Oyj

发明人： PENTTINEN, Tapani ,  NEVALAINEN, Kimmo ,  KUUSIPALO, Jurkka ,  KOSKINEN, Tapio ,  KOTKAMO, Sami

IPC分类号： B29C65/14 ,  B29C71/04 ,  B32B27/12 ,  B65D65/40 ,  C08J3/28 ,  B65D3/22 ,  C09J5/00

CPC分类号： B31B50/64 ,  B29C65/02 ,  B29C65/10 ,  B29C65/18 ,  B29C66/028 ,  B29C66/4322 ,  B29C66/71 ,  B29C66/723 ,  B29C66/72328 ,  B29C66/9141 ,  B29C66/91423 ,  B29C66/919 ,  B29C66/9192 ,  B29C71/04 ,  B29C2035/0827 ,  B29K2067/00 ,  B29K2067/006 ,  B29K2067/046 ,  B31B50/74 ,  B32B7/12 ,  B32B9/02 ,  B32B27/08 ,  B32B27/10 ,  B32B27/12 ,  B32B27/36 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2274/00 ,  B32B2307/31 ,  B32B2439/40 ,  B32B2553/00 ,  C08J5/121 ,  C08J7/123 ,  C08J2367/04 ,  C09J5/06 ,  C09J2205/31 ,  C09J2467/00 ,  B29K2023/0633

摘要： A method for improving the heat sealability of a packaging material and a method for manufacturing a heat-sealed container or package are described. The material can be polymer-coated packaging paper or cardboard, or a polymeric packaging film. The material includes a polymer layer that contains polyester, particularly polylactide, the heat sealability of which is improved by ultraviolet radiation. Polylactide is useful as such or when blended, for example, with other biodegradable polyester. The containers and packages thus manufactured include disposable drinking cups and cardboard carton and box packages.

摘要翻译： 描述了一种用于提高包装材料的热封性的方法和用于制造热密封的容器或包装的方法。 该材料可以是聚合物涂覆的包装纸或纸板，或聚合物包装膜。 该材料包括含有聚酯，特别是聚丙交酯的聚合物层，其热封性通过紫外线辐射而改善。 聚丙交酯是有用的，或者当与例如与其它可生物降解的聚酯混合时是有用的。 如此制造的容器和包装包括一次性饮用杯和纸板箱和箱包装。

公开(公告)号：EP1094944B1

公开(公告)日：2004-09-29

申请号：EP99934741.2

申请日：1999-07-06

申请人： Stora Enso Oyj

发明人： KUUSIPALO, Jurkka ,  NEVALAINEN, Kimmo ,  PENTTINEN, Tapani

IPC分类号： B32B27/10 ,  B65D65/46 ,  B32B31/30

CPC分类号： B32B27/10 ,  B32B37/153 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2307/716 ,  B32B2307/7265 ,  B32B2309/02 ,  B32B2439/70 ,  D21H11/02 ,  D21H11/04 ,  D21H19/84 ,  D21H27/10 ,  D21H27/38 ,  Y10T428/1303 ,  Y10T428/1352 ,  Y10T428/1379 ,  Y10T428/27 ,  Y10T428/273 ,  Y10T428/277 ,  Y10T428/2817 ,  Y10T428/2826 ,  Y10T428/31786 ,  Y10T428/3179 ,  Y10T428/31993

摘要： The objects of the invention are compostable polymer coated paper or paperboard (1), a method for making the same and products obtained therefrom. According to invention, a compostable biodegradable coating (3) of paper or paperboard (1) consists of an outer layer (6) containing polylactide the weight of which is at the most about 20 g/m , and of an adhesive layer (7) that binds the outer layer to the paper or paperboard (1) and is of biodegradable polymer material that is coextruded with the polylactide. Suitable materials for the adhesive layer (7) are biodegradable polyesters. The production is by coextrusion of the polylactide layer (6) and the adhesive layer (7) on either one side of the paper or paperboard or on both sides thereof. Products obtained include in particular packages for food stuffs and disposable dishes such as containers for frozen foods, disposable drinking cups, heat-sealed carton packages and packaging wraps.

公开(公告)号：EP3625054A1

公开(公告)日：2020-03-25

申请号：EP18801615.8

申请日：2018-05-09

申请人： Stora Enso Oyj

发明人： R S NEN, Jari ,  NEVALAINEN, Kimmo ,  RIBU, Ville ,  SUOKAS, Esa ,  KUUSIPALO, Jurkka

IPC分类号： B32B27/10 ,  B29C47/40 ,  B32B29/00 ,  C08J3/20 ,  D21H19/00

公开(公告)号：EP1594759B1

公开(公告)日：2007-08-29

申请号：EP04713563.7

申请日：2004-02-23

申请人： Stora Enso Oyj

发明人： PENTTINEN, Tapani ,  NEVALAINEN, Kimmo ,  HEISKANEN, Isto ,  SAVOLAINEN, Antti ,  KUUSIPALO, Jurkka ,  KOREASALO, Esa ,  LAIHO, Erkki ,  SAINIO, Markku ,  LEHIKOINEN, Tommi

IPC分类号： B65D65/40 ,  B32B27/20 ,  B32B27/10 ,  B65D81/34

CPC分类号： B32B27/32 ,  B05D5/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/12 ,  B32B27/20 ,  B32B27/34 ,  B32B2255/26 ,  B32B2307/31 ,  B32B2323/10 ,  B32B2329/00 ,  B32B2377/00 ,  B32B2439/70 ,  B65D5/563 ,  B65D81/24 ,  B65D81/30 ,  Y10T428/2933

摘要： The invention relates to a polymer-coated heat-sealable packaging material, to a heat-sterilised package formed from this and to the use of the packaging material. The material comprises a fibre base ( 4), which is e.g. a packaging board made of bleached pulp, and polymer heat-seal layers (1, 9) located on both sides of this. In accordance with the invention, the package comprises, outside the fibre base, a polymer coating layer (2), which contains white pigment for covering the fibre base from sight, and a second coating layer (8), which contains light-absorbing pigment. A coating layer pigmented grey inside the fibre base, for instance, provides a light shield for the packaged product. The absorbent black pigment may also be located outside the fibre base underneath a white layer in order to stabilise the brightness of the material. The package may be e.g. a food package heat-sterilised in an autoclave, in which yellowing of the fibre-based material has been avoided by means of a white pigment.

公开(公告)号：EP1756674A1

公开(公告)日：2007-02-28

申请号：EP05756356.1

申请日：2005-06-16

申请人： Stora Enso Oyj

发明人： RÄSÄNEN, Jari ,  LAHTI, Johanna ,  SAVOLAINEN, Antti ,  KUUSIPALO, Jurkka

IPC分类号： G03G7/00

CPC分类号： G03G7/0053 ,  G03G7/004 ,  Y10T428/24802 ,  Y10T428/24901 ,  Y10T428/24934 ,  Y10T428/2495 ,  Y10T428/26 ,  Y10T428/266 ,  Y10T428/273 ,  Y10T428/277 ,  Y10T428/31855 ,  Y10T428/31895 ,  Y10T428/31899 ,  Y10T428/31993

摘要： The invention relates to a method for digitally printing a polymer-coated paper or board (1), to a paper or board suitable for the method and to the production of a product package equipped with digital prints. During digital printing, printing ink particles are applied in an electric field to the printing surface formed of a polymer coating at locations corresponding to the print, and the printing ink is adhered to the printing surface by fusion with the aid of infrared radiation. In accordance with the invention, the paper or board (2) to be printed is equipped with an inner coating layer (3) containing electrically chargeable ethene acrylate copolymer, such as ethene methyl acrylate copolymer (EMA), and with a polyolefin-based outer shield layer (4) on top of this, which contains e.g. low-density polyethene (LDPE) and provides mechanical strength, forming the printing surface receiving the printing ink.