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公开(公告)号：CA3027125A1
公开(公告)日：2018-01-04
申请号：CA3027125
申请日：2017-06-27
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , SAUKKONEN ESA , BACKFOLK KAJ
Abstract: The present invention relates to a method for the production of a film comprising microfibrillated cellulose, wherein the method comprises the steps of; providing a suspension comprising microfibrillated cellulose, applying the suspension on a substrate to form a fibrous web, wherein the web has a first and a second side, conducting the web to a contact drying equipment wherein the first side of said web is in direct contact with of the contact drying equipment at a temperature above 100°C whereby the web is at least partly dried forming a film. The invention also relates to a film produced according to the method.
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公开(公告)号：CA3028587A1
公开(公告)日：2017-12-28
申请号：CA3028587
申请日：2017-06-20
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , SAUKKONEN ESA
Abstract: The invention concerns a method of producing an MFC film comprising reinforcement fibers, which film show excellent oxygen barrier properties and is easy to handle. The method of manufacturing the film comprises the steps of: - providing a suspension comprising a first microfibrillated cellulose (MFC) in an amount of at least 50 weight %, reinforcement fibers in an amount of at least 5 weight %, all percentages calculated on the total solid content of said suspension, and a formation aid, - mixing said suspension to form a mixture, - forming a fibrous web from the mixture, and - dewatering and/or drying said fibrous web to form a film having a basis weight of less than 40 g/m2, a specific formation number of below 0.45 g0,5/m2, and an Oxygen Transmission Rate (OTR) value of below 100 ml/m2/per 24 hours, preferably of below 50 ml/m2per 24 hours at 50% relative humidity. The invention further discloses a film and use of the film in food or liquid packaging applications.
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公开(公告)号：CA3017446A1
公开(公告)日：2017-11-02
申请号：CA3017446
申请日：2017-04-26
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , SAUKKONEN ESA , KANKKUNEN JUKKA
Abstract: The present invention is directed to a film comprising a base film which has been coated on at least one side with a coating that enhances gas and/or moisture barrier properties, wherein the base film comprises a fiber material and at least 60% by weight of said fiber material is microfibrillated cellulose, and the thickness of the coating is from 0.05 to 20 µm. The invention is also directed to products using said film. Such products are in particular packages suitable for sensitive objects that need to be packaged in a controlled or modified atmosphere. The film is also useful for other purposes, such as in the manufacture of balloons.
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公开(公告)号：NZ718115A
公开(公告)日：2017-10-27
申请号：NZ71811512
申请日：2012-05-11
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , KOTILAINEN ARI , GAIDELIS VALENTAS , SIDARAVICIUS JONAS
Abstract: Process for purifying a slurry comprising cellulose by salt/ion depletion and/or free sugar depletion. The process comprises the following steps of providing a slurry comprising cellulose and liquid, subjecting the slurry to a first application of an electric field inducing the liquid of the slurry to flow, separating the liquid from the cellulose thus obtaining a liquid depleted slurry, adding a washing liquid to the liquid depleted slurry, subjecting the liquid depleted slurry to a second application of an electric field inducing the washing liquid of the slurry to flow and separating the washing liquid from the cellulose, thus obtaining a purified cellulose.
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公开(公告)号：CA3016868A1
公开(公告)日：2017-10-05
申请号：CA3016868
申请日：2017-03-30
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , SAUKKONEN ESA , LYYTIKAINEN KATJA
Abstract: The present invention relates to a new process for improving dewatering when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a polymer.
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Patent Agency Ranking
公开(公告)号：BR112015016087A2
公开(公告)日：2017-07-11
申请号：BR112015016087
申请日：2013-12-30
Applicant: STORA ENSO OYJ
Inventor： AXRUP LARS , BACKFOLK KAJ , HEISKANEN ISTO , KANKKUNEN JUKKA , KASTINEN HENRI , KAUPPI ANNA , LAND HENSDAL CECILIA , SAXELL HEIDI
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">147.发明专利
公开(公告)号：BR112015010582A2
公开(公告)日：2017-07-11
申请号：BR112015010582
申请日：2013-11-06
Applicant: STORA ENSO OYJ
Inventor： AXRUP LARS , BACKFOLK KAJ , HEISKANEN ISTO , JOKELA VEIKKO , KASTINEN HENRI , KAUPPI ANNA , LAITINEN RISTO , LAUKALA TEIJA , RUOHONIEMI NINA , SAXELL HEIDI
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公开(公告)号：ES2613705T3
公开(公告)日：2017-05-25
申请号：ES09714946
申请日：2009-02-26
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , HARLIN ALI
Abstract: Un método para formar partículas o gotas de al menos una sustancia que comprende las etapas de; i) proporcionar un medio espumado, comprendiendo dicho medio espumado dicha sustancia, y proporcionándose dicho medio espumado al dispersar un gas en un líquido o en un sólido, comprendiendo dicho líquido o sólido dicha sustancia, o proporcionándose dicho medio espumado al dispersar un gas en un líquido o en un sólido por lo cual se forma una dispersión de un gas en un líquido o sólido, tras lo cual al menos una sustancia se incorpora en dicha dispersión, en la que el gas se dispersa en el líquido o en el sólido en una cantidad de 50-99% en volumen del total del medio espumado; ii) formar partículas o gotas de nano-tamaño de dicha sustancia por electrohilado o electropulverización de dicho medio espumado.
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公开(公告)号：CA2995478A1
公开(公告)日：2017-03-23
申请号：CA2995478
申请日：2016-09-16
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , SAUKKONEN ESA , RUOHONIEMI NINA , LYYTIKAINEN KATJA
Abstract: The present invention relates to a method for manufacturing a film having an oxygen transmission rate in the range of from 1 cc/m2/24h to 500 cc/m2/24h according to ASTM D-3985, at a relative humidity of more than 50 % at 25°C, or higher than 75% at 25°C, or higher than 85% at 25°C, wherein the method comprises the steps of: providing a first suspension comprising a microfibrillated cellulose, wherein the dry content of the suspension is in the range of from 0.1 to 10% by weight, adding a wet strength additive to said first suspension, at an amount of from 0.1 to 10 weight-% based on the amount of microfibrillated cellulose (dry/dry), thereby forming a mixture of the microfibrillated cellulose and the wet strength additive, applying said mixture to a substrate to form a fibrous web and drying said web to form said film. The present invention also relates to a film produced according to the method.
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150.发明专利
公开(公告)号：CA2995437A1
公开(公告)日：2017-03-23
申请号：CA2995437
申请日：2016-09-16
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ
Abstract: A method for the production of a film from a fibrous web, wherein the method comprises the steps of: providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, adding an amphoteric polymer to said suspension to provide a mixture of said microfibrillated cellulose and said amphoteric polymer, providing said mixture to a substrate to form a fibrous web, wherein the amount of amphoteric polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content; and dewatering said fibrous web to form a film having a basis weight of less than 40 g/m2 and a density in the range of from 700 to 1000 kg/m3
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