公开(公告)号：EP3097144A4

公开(公告)日：2017-09-06

申请号：EP15741066

申请日：2015-01-22

Applicant: STORA ENSO OYJ

Inventor： RÄSÄNEN JARI ,  KYLLIÄINEN OUTI ,  NEVALAINEN KIMMO ,  RIBU VILLE ,  ROSLING ARI ,  KHAJEHEIAN MOHAMMAD ,  LINDSTRÖM ELLA

IPC: B29C71/04 ,  B29C35/08 ,  B29K67/00 ,  B32B27/10 ,  B65D65/38 ,  C08K5/00

CPC classification number: B29C66/73121 ,  B29C35/0805 ,  B29C35/0866 ,  B29C35/10 ,  B29C65/02 ,  B29C66/028 ,  B29C66/4322 ,  B29C66/71 ,  B29C66/72328 ,  B29C66/851 ,  B29C71/04 ,  B29C2035/0827 ,  B29C2035/0877 ,  B29K2067/00 ,  B29K2067/003 ,  B29K2067/046 ,  B29L2031/7132 ,  B32B27/10 ,  B32B27/20 ,  B32B27/36 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7163 ,  B32B2439/70 ,  D21H19/28 ,  D21H19/62 ,  D21H25/06 ,  D21H27/10

Abstract: The invention relates to use of polylactide (PLA) as an extruded polymer coating on paper or board intended for the production of containers and packages, which are heated in a stove or microwave oven. According to the invention a polyfunctional cross-linking agent, such as trialkyl isocyanureate (TAIC), is blended with PLA, and the extruded coating layer is subjected to cross-linking electron beam (EB) radiation. PLA may be used as such or blended with another biodegradable polyester such as polybutylene succinate (PBS). EB radiation has been found to improve adhesion of the coating to the paper or board substrate, heat-scalability of the coating, and heat-resistance of the finished containers and packages.

Abstract translation: 本发明涉及聚丙交酯（PLA）作为用于生产在炉子或微波炉中加热的容器和包装的纸或板上的挤出聚合物涂层的用途。 根据本发明，将多官能交联剂如异氰脲酸三烷基酯（TAIC）与PLA共混，并对挤出的涂层进行交联电子束（EB）辐射。 PLA可以原样使用或与另一种可生物降解的聚酯如聚丁二酸丁二醇酯（PBS）混合使用。 已发现EB辐射可改善涂层对纸张或纸板基材的附着力，涂层的热缩性以及成品容器和包装的耐热性。

公开(公告)号：EP3107728A4

公开(公告)日：2018-03-28

申请号：EP15751275

申请日：2015-02-19

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RAESAENEN JARI ,  RIBU VILLE

IPC: B32B27/10 ,  B29C47/02 ,  B29L9/00 ,  B32B27/32 ,  B32B37/15 ,  B65D65/40 ,  C08L23/04

CPC classification number: B32B27/32 ,  B29C47/0021 ,  B29C47/0047 ,  B29C47/0064 ,  B29C47/025 ,  B29C47/065 ,  B29K2023/0625 ,  B29K2023/0633 ,  B29K2023/065 ,  B29K2995/0017 ,  B29L2009/005 ,  B29L2031/7132 ,  B32B7/12 ,  B32B27/10 ,  B32B37/15 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2323/043 ,  B32B2323/046 ,  B32B2439/00 ,  B32B2439/40 ,  B65D1/265 ,  B65D65/40 ,  C08L23/06

Abstract: The invention relates to a polymer-coated packaging material, a method of manufacturing the same, and products, such as a disposable drinking cup, made from the material. The packaging material comprises a fibrous base (1) of paper or board and an extruded polymer layer (2) containing a blend of (i) 0 to 25 wt-% of a branched low-density polyethylene (LDPE)with a lower melt viscosity and (ii) 75 to 90 wt-% of a linear low-density polyethylene (LLDPE) with a higher melt viscosity. The packaging material of the invention comprises multilayer coatings, e.g. an adhesive innermost and a heat-sealable outermost layer (2, 4) of said blend and a vapour barrier middle layer (3) of at most 90 wt-% of high density polyethylene (HDPE). The layers (2, 3, 4) are brought and adhered to the fibrous base (1) by coextrusion. To maximize renewability of the materials HDPE and LLDPE as used for the structure are of biologic origin.

公开(公告)号：EP3097143A4

公开(公告)日：2017-08-30

申请号：EP15740565

申请日：2015-01-22

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RIBU VILLE ,  RÄSÄNEN JARI ,  KYLLIÄINEN OUTI ,  ROSLING ARI ,  KHAJEHEIAN MOHAMMAD ,  KUUSIPALO JURKKA ,  KOTKAMO SAMI ,  TOUMINEN MIKKO

IPC: B29C65/00 ,  B29C35/08 ,  B29C65/02 ,  B29C71/04 ,  B29K67/00 ,  B29L31/00 ,  B32B27/10 ,  B32B27/36 ,  B65D65/38 ,  C08J7/18 ,  D21H19/28 ,  D21H25/04 ,  D21H27/10

CPC classification number: B29C66/73121 ,  B29C35/0805 ,  B29C65/02 ,  B29C66/028 ,  B29C66/4322 ,  B29C66/71 ,  B29C66/72328 ,  B29C66/851 ,  B29C71/04 ,  B29C2035/0827 ,  B29C2035/0877 ,  B29K2067/00 ,  B29K2067/003 ,  B29K2067/046 ,  B29L2031/7132 ,  B32B27/10 ,  B32B27/36 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7163 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2439/70 ,  D21H19/28 ,  D21H25/04 ,  D21H27/10

Abstract: 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.

Abstract translation: 本发明涉及降低熔体粘度并由此改善聚酯的热封性的方法。 本发明还涉及由纤维基聚酯涂布的包装材料制造热封容器或包装的方法以及热封聚酯的方法。 根据本发明的解决方案使聚酯经受电子束（EB）辐射。 降低的熔体粘度允许较低的热封温度，并允许将聚酯密封到未涂布的纤维表面。 本发明优选的聚酯是聚交酯，原样或与另一种聚酯共混。

公开(公告)号：EP2911878A4

公开(公告)日：2016-06-29

申请号：EP13848212

申请日：2013-10-28

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RIBU VILLE

IPC: B32B37/15 ,  B32B27/08 ,  B32B27/10 ,  B32B27/12 ,  B32B27/18 ,  B32B27/30 ,  B32B27/36 ,  B65D65/46 ,  C08L67/04 ,  D21H19/28

CPC classification number: B65D25/14 ,  A47G19/2205 ,  B32B27/08 ,  B32B27/10 ,  B32B27/12 ,  B32B27/18 ,  B32B27/308 ,  B32B27/36 ,  B32B37/153 ,  B32B2270/00 ,  B32B2307/7163 ,  B32B2317/12 ,  B32B2439/00 ,  B32B2439/02 ,  B32B2439/60 ,  B32B2439/62 ,  B32B2439/66 ,  B32B2439/70 ,  B32B2553/00 ,  B65D1/34 ,  B65D5/62 ,  B65D65/466 ,  D21H19/20 ,  D21H19/28 ,  D21H19/82 ,  D21H19/824 ,  D21H27/10 ,  Y02A40/961 ,  Y02W90/12 ,  Y02W90/13 ,  Y10T428/3179

Abstract: A biodegradable packaging material, a method of manufacturing the same, as well as products made of the material wherein the manufacture comprises extrusion onto a fibrous substrate one or more polymer coating layers including at least one layer of a polymer blend consisting of (i) 20-95 wt-% of polylactide having a high melt index of more than 35 g/10 min (210° C.; 2.16 kg), (ii) 5-80 wt-% of polybutylene succinate (PBS) or a biodegradable derivate thereof, and (iii) 0-5 wt-% of one or more polymeric additives. The components of the blend are melted and blended in connection with the extrusion step. The goal is to improve extrudability, increase machine speed in extrusion and 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：EP3131756A4

公开(公告)日：2017-10-18

申请号：EP15780100

申请日：2015-04-14

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RIBU VILLE

IPC: B32B37/15 ,  B29C47/00 ,  B29C47/02 ,  B29C47/06 ,  B29C47/88 ,  B32B27/08 ,  B32B29/00 ,  B65D65/40 ,  B65D81/34

CPC classification number: B32B37/153 ,  B29C47/0064 ,  B29C47/027 ,  B29C47/065 ,  B29C47/8845 ,  B29K2077/00 ,  B29K2105/0097 ,  B29K2667/003 ,  B29L2007/008 ,  B29L2009/00 ,  B29L2009/005 ,  B29L2031/712 ,  B32B7/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/10 ,  B32B27/34 ,  B32B27/36 ,  B32B37/14 ,  B32B37/203 ,  B32B2270/00 ,  B32B2307/306 ,  B32B2307/718 ,  B32B2307/7242 ,  B32B2307/7244 ,  B32B2317/12 ,  B32B2367/00 ,  B32B2377/00 ,  B32B2439/70 ,  B65D81/343 ,  B65D81/3453

Abstract: The invention covers a method of producing a heat-resistant polymer-coated oven board, the resulting oven board, a food tray and a food package, which comprise such board and withstand heating in a range or microwave oven. According to the invention the coated oven board (1) is made by adhering a premade heat-resisting film (4) comprising polyethylene terephthalate (PET) or its derivate, such as glycol-modified PET known as PETG, to a board base (2) by extrusion lamination, in which an adhesive layer (3) comprising polyamide (PA) is extruded between the heat-resisting film and the board base. To improve the strength and barrier properties, the film (4) may be an extruded multilayer film and/or the film may be stretch-orientated to bring about crystallization in PET.

公开(公告)号：EP2911879A4

公开(公告)日：2016-08-03

申请号：EP13849837

申请日：2013-10-23

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RIBU VILLE ,  KUUSIPALO JURKKA ,  KOTKAMO SAMI

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

CPC classification number: 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

Abstract: A biodegradable packaging material, a method of manufacturing the same, as well as products made of the material wherein a multilayer coating coextruded onto a fibrous substrate the multilayer coating comprising innermost and outermost layers 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 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：EP2925524A4

公开(公告)日：2016-06-29

申请号：EP13858542

申请日：2013-11-13

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RIBU VILLE

IPC: B32B27/10 ,  B32B27/08 ,  B32B27/12 ,  B32B27/32 ,  B65D65/38

CPC classification number: B32B27/08 ,  A47G19/2205 ,  A47G2400/10 ,  B29C47/0004 ,  B29C47/025 ,  B29C47/065 ,  B29K2023/0625 ,  B29K2023/0633 ,  B29K2023/065 ,  B29K2105/0088 ,  B29K2711/12 ,  B29L2031/712 ,  B29L2031/7132 ,  B32B27/10 ,  B32B27/12 ,  B32B27/32 ,  B32B37/153 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7163 ,  B32B2307/718 ,  B32B2307/7246 ,  B32B2317/12 ,  B32B2439/70

Abstract: The invention relates to a polymer-coated packaging material, a method of manufacturing the same, and products, such as a disposable drinking cup, made from the material. The packaging material comprises a fibrous base (1) of paper or board, an innermost polymer layer (2) containing a blend of (i) 10 to 25 wt-% of a low-density polyethylene (LDPE) and (ii) 75 to 90 wt-% of a second polyethylene with a higher melt viscosity, said second polyethylene being selected from linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE), and an outer layer (3) of more than 90 wt-% of HDPE. An outermost layer (4) of a polymer blend similar to that used for the innermost layer (2) may be provided for heat-sealing. The layers (2, 3 and 4) may be brought and adhered to the fibrous base (1) by coextrusion. To maximize renewability of the materials HDPE and LLDPE as used for the structure are of biologic origin.

公开(公告)号：EP2731887A4

公开(公告)日：2015-05-27

申请号：EP12810665

申请日：2012-06-20

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RIBU VILLE

IPC: B65D65/46 ,  B29C41/30 ,  B32B1/02 ,  B32B27/08 ,  B32B27/10 ,  B32B27/30 ,  B32B27/36 ,  B32B29/00 ,  B65D65/40 ,  C08L67/04 ,  C09D167/04 ,  D21H19/28 ,  D21H19/82 ,  D21H27/10

CPC classification number: B32B29/002 ,  B29C41/30 ,  B32B1/02 ,  B32B27/08 ,  B32B27/10 ,  B32B27/308 ,  B32B27/36 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2255/00 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7163 ,  B32B2307/7265 ,  B32B2439/00 ,  B32B2439/02 ,  B32B2439/70 ,  B65D65/466 ,  C08L67/04 ,  C09D167/04 ,  D21H19/28 ,  D21H19/824 ,  D21H27/10 ,  Y02W90/12 ,  Y02W90/13 ,  Y10T428/1303 ,  Y10T428/31895 ,  C08L67/02 ,  C08L23/0884

Abstract: The invention concerns a heat-sealable biodegradable packaging material, which comprises a fibrous substrate (1) and one or more polymer coating layers (2) extruded onto said substrate. According to the invention the packaging material includes at least one polymer coating layer (2) containing at least 70 weight-% of polylactide (PLA) and at least 5 weight-% of polybutylene succinate (PBS) or its derivate blended therewith. Optionally an acryl copolymer such as ethylene butyl acrylate glycidyl methacrylate terpolymer (EBAGMA) may be included in the polymer blend. The invention further concerns a heat-sealed container, such as a disposable drinking cup, and a heat-sealed product package made from the packaging material, as well as uses of PBS or its derivates as blends with PLA in extrusion coating, for improving adhesivity of the coating to the fibrous substrate and reduced raw edge penetration to the packaging material, especially penetration of hot coffee held in the drinking cup.

公开(公告)号：PL3097143T3

公开(公告)日：2020-08-24

申请号：PL15740565

申请日：2015-01-22

Applicant: STORA ENSO OYJ

Inventor： NEVALAINEN KIMMO ,  RIBU VILLE ,  RÄSÄNEN JARI ,  KYLLIÄINEN OUTI ,  ROSLING ARI ,  KHAJEHEIAN MOHAMMAD ,  KUUSIPALO JURKKA ,  KOTKAMO SAMI ,  TOUMINEN MIKKO

IPC: B29C65/00 ,  B29C35/08 ,  B29C65/02 ,  B29C71/04 ,  B29K67/00 ,  B29L31/00 ,  B32B27/10 ,  B32B27/36 ,  B65D65/38 ,  C08J7/18 ,  D21H19/28 ,  D21H25/04 ,  D21H27/10

公开(公告)号：AU2016280244B2

公开(公告)日：2020-06-11

申请号：AU2016280244

申请日：2016-06-16

Applicant: STORA ENSO OYJ

Inventor： RIBU VILLE ,  MIIKKI NINA

IPC: B32B27/10 ,  B32B29/06 ,  B65D5/62 ,  B65D25/34 ,  B65D65/40 ,  C08J7/04

Abstract: The disclosure relates to a container (10) comprising a sealing surface (15), wherein the sealing surface (15) is provided with a pattern (30) of ridges (31, 32) and valleys (33), and wherein the sealing surface (15) has a) oleophobic and/or b) oleophilic properties : a) repelling fat such that any fat on the sealing surface (15) has a tendency not to stick to the pattern (30) on the sealing surface thus creating an essentially fat-free sealing surface or b) attracting fat such that any fat on the sealing surface (15) has a tendency to settle down in the valleys (33) of the pattern (30) on the sealing surface, respectively.