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公开(公告)号：SE1400205A1
公开(公告)日：2015-10-17
申请号：SE1400205
申请日：2014-04-16
Applicant: STORA ENSO OYJ
Inventor： NEVALAINEN KIMMO , RIBU VILLE
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Patent Agency Ranking
公开(公告)号：NZ620727A
公开(公告)日：2015-08-28
申请号：NZ62072712
申请日：2012-06-20
Applicant: STORA ENSO OYJ
Inventor： NEVALAINEN KIMMO , RIBU VILLE
Abstract: A heat-sealable biodegradable packaging material is disclosed. The material has 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.
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公开(公告)号：SE1400034A1
公开(公告)日：2015-07-25
申请号：SE1400034
申请日：2014-01-24
Applicant: STORA ENSO OYJ
Inventor： NEVALAINEN KIMMO , RIBU VILLE , RÄSÄNEN JARI , KYLLIÄINEN OUTI , ROSLING ARI , KHAJEHEIAN MOHAMMAD BAGHER , KUUSIPALO JURKKA , KOTKAMO SAMI , TUOMINEN MIKKO
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公开(公告)号：AU2013336508A1
公开(公告)日：2015-05-21
申请号：AU2013336508
申请日：2013-10-28
Applicant: STORA ENSO OYJ
Inventor： NEVALAINEN KIMMO , RIBU VILLE
Abstract: The invention provides a biodegradable packaging materi- al, a method of manufacturing the same, as well as products made of the material. The manufacture comprises extrusion onto a fibrous substrate (1) one or more polymer coating layers including at least one layer (2) 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 ma- chine speed in extrusion and maintaining good adhesive- ness to the substrate and good heat-sealability of the coat- ing. The products include disposable drinking cups and board trays, as well as sealed carton packages for solids and liquids.
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公开(公告)号：FI124660B
公开(公告)日：2014-11-28
申请号：FI20115745
申请日：2011-07-12
Applicant: STORA ENSO OYJ
Inventor： NEVALAINEN KIMMO , RIBU VILLE
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公开(公告)号：FI20115745A
公开(公告)日：2013-01-13
申请号：FI20115745
申请日：2011-07-12
Applicant: STORA ENSO OYJ
Inventor： NEVALAINEN KIMMO , RIBU VILLE
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.
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