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1. 发明授权

US11634867B2 Method for producing paper 有权
公开(公告)号：US11634867B2
公开(公告)日：2023-04-25
申请号：US17132375
申请日：2020-12-23
申请人： OSAKA UNIVERSITY , DAIKIN INDUSTRIES, LTD.
发明人： Akihiro Oshima , Yoshikage Ohmukai , Yuko Shiotani , Kazuyuki Satou , Michio Matsuda , Tomohiro Yoshida , Ikuo Yamamoto
IPC分类号： D21H19/20 , D21H21/16 , D21H27/10
摘要： A method for producing a paper, which includes applying at least one of ionizing radiation and plasma to at least one of a paper base and a compound (A) selected from: a compound having a carbon-carbon unsaturated bond and containing no fluorine atom in a molecular structure, and a compound containing no fluorine atom in a molecular structure in which radicals are generated by irradiation of an electron beam to the compound, to introduce a layer formed from the compound (A) on a surface of the paper base.

2. 发明申请

US20230087382A1 A MULTI-LAYER FLEXIBLE PACKAGING MATERIAL 有权
公开(公告)号：US20230087382A1
公开(公告)日：2023-03-23
申请号：US17904234
申请日：2021-02-17
申请人： SOCIETE DES PRODUITS NESTLE S.A.
发明人： ALEXEY VISHTAL , HOCK SENG GORDON SOH
IPC分类号： B65D65/42 , D21H27/10 , D21H19/84 , D21H19/08 , D21H19/40 , D21H19/60 , D21H19/22 , D21H11/14
摘要： The present invention relates generally to the field of multi-layer flexible packaging material. In particularly, the present invention relates to a multi-layer flexible packaging material comprising a paper layer, an aluminium layer, a nanoclay barrier coating layer, and a sealing layer applied to the surface of the nanoclay barrier coating layer representing the inner surface of the multi-layer flexible packaging material, said multilayer flexible barrier material being deprived of a polyolefin layer, such as a polyethylene (PE), polyethylene terepthalate (PET) or a polypropylene (PP) layer. The present invention further relates to the use of the multi- layer flexible packaging material in accordance with the present invention to package dry food.

3. 发明申请

US20220412009A1 CELLULOSIC LAMINAR ELEMENT, METHOD FOR OBTAINING SAID ELEMENT AND RECEPTACLE MADE USING SAID CELLULOSIC LAMINAR ELEMENT 有权
公开(公告)号：US20220412009A1
公开(公告)日：2022-12-29
申请号：US17756629
申请日：2020-12-22
申请人： TORRASPAPEL, S.A.
发明人： JUAN GUINART PUIGVERT
IPC分类号： D21H19/48 , D21H19/82 , D21H27/10 , D21H25/06 , B31D5/00
摘要： The present invention relates to a method for producing a coated cellulosic laminar element for disposable food and/or drinks service packaging and containers, comprising the following steps: (a) performing a first application of an aqueous dispersion of an ethylene compound and an acrylic compound on a single side of the cellulosic laminar element; (b) drying the dispersion applied in a); (c) performing, after the drying, a second application of the ethylene compound and acrylic compound to the ethylene compound and acrylic compound applied in a) on the same side; (d) drying the dispersion applied in c). The present invention also relates to a cellulosic laminar element and to a disposable foods and/or drinks service packaging and containers obtained by means of the method of the present invention.

4. 发明申请

US20220402636A1 MULTILAYER PAPERBOARD POUCH AND METHOD OF MAKING THE SAME USING CONVENTIONAL BAG-MAKING EQUIPMENT (CBME) 有权
公开(公告)号：US20220402636A1
公开(公告)日：2022-12-22
申请号：US17350424
申请日：2021-06-17
申请人： Pactiv Evergreen Inc.
发明人： Geoffrey Nobes , Ernest Pasteur
IPC分类号： B65B3/02 , B65B3/04 , B65B9/06 , B65B61/06 , B65B51/26 , D21H19/22 , D21H19/30 , D21H19/82 , D21H27/10
摘要： An improved paperboard pouch comprising a multilayer substrate and a method of making the same is provided. The multilayer paperboard pouch comprises an outer surface and an inner surface, wherein one of the surfaces is defined as a food contact surface. In the depicted embodiment, the properties of the polymer layer are chosen to provide adequate mechanical and barrier protection to the paper-based pouch formed on the conventional pouch-forming equipment. A method of manufacturing a multilayer paperboard pouch using conventional bag-making equipment (“CBME”) running at normal production speed for making standard plastic pouches is also provided. First, a paper is extrusion-coated and then the CBME is configured with a feeder for feeding an extrusion-coated paper intermittently for a length along a feeding path; a cutter disposed at a position predetermined for cutting one of the layers of the coated paper and forming a first side gusset, a second side gusset and a bottom gusset portions and for folding each of a first side gusset, a second side gusset and a bottom gusset portions into halves along a center line extending longitudinally thereof; and a sealer for sealing the layers of the polymer with the layers of the bottom gusset portion and the layers of the first and second gusset portions, respectively to form the finished multilayer paperboard pouch ready for sale and distribution to various retailers. It is to be noted that in the depicted embodiment various closure constructions and mechanism can be used for heat sealing the finished pouches.

5. 发明授权

US11519134B2 Oil, grease, and moisture resistant paperboard having a natural appearance 有权
公开(公告)号：US11519134B2
公开(公告)日：2022-12-06
申请号：US17072248
申请日：2020-10-16
申请人： WestRock MWV, LLC
发明人： Jiebin Pang , Scott J. Reigel , Natasha G. Melton , Teresa Krug , Steven Parker , Terry Clark
IPC分类号： D21H19/58 , D21H19/38 , D21H19/40 , D21H19/82 , D21H19/50 , D21H21/52 , D21H19/66 , D21H19/60 , D21H21/14 , D21H27/10
摘要： A coated paperboard having a natural appearance is disclosed which includes a barrier coating containing substantially no fluorochemical or wax, exhibiting good resistance to oil, grease, and moisture and having no tendency toward blocking.

6. 发明授权

US11504952B2 Barrier material 有权
公开(公告)号：US11504952B2
公开(公告)日：2022-11-22
申请号：US16651287
申请日：2018-10-03
申请人： NIPPON PAPER INDUSTRIES CO., LTD.
发明人： Takaharu Noda , Masaaki Fukunaga
IPC分类号： B32B27/10 , D21H19/82 , B32B1/02 , B32B27/36 , B65D65/40 , D21H19/40 , D21H19/58 , D21H19/60 , D21H21/16 , D21H27/10
摘要： An object is to provide a barrier material which not only is high in degree of biomass and small in amount of CO2 emitted, but also has biodegradability and simultaneously has excellent gas barrier property and water vapor barrier property, and which can be suitably used particularly in packaging applications for foods or the like, such as a packaging material, a bag, a paper container, a cardboard box, and a cup. A solution to be provided is a barrier material having an oxygen permeability of 10 ml/m2·day·atm or less at a temperature of 23° C. and a relative humidity of 0%, and having a total degree of biomass of 50% or more.

7. 发明授权

US11479917B2 Method for manufacturing a packaging material and a packaging material made by the method 有权
公开(公告)号：US11479917B2
公开(公告)日：2022-10-25
申请号：US15125616
申请日：2015-03-13
申请人： Stora Enso OYJ
发明人： Nina Miikki , Petri Sirvió , Kaj Backfolk
IPC分类号： D21H27/10 , B32B27/10 , B32B27/36 , D21H19/10 , B32B7/12 , D21H21/18 , D21H19/82 , D21H19/52 , D21H19/84 , B41M5/00 , B41M7/00 , B41M5/52 , B65D65/40 , B32B27/32 , D21H19/14 , D21H19/34 , D21H23/70
摘要： The invention refers to a method to produce a packaging material comprising the steps of; treating at least one surface of a paperboard substrate with a binder and with a metal salt, printing at least a part of said treated surface with ink, and applying at least one polymer layer on said printed surface. The packaging material produced in accordance with the invention shows good printability and simultaneously good adhesion of the applied polymer layer.

8. 发明授权

US11458714B2 Heat-sealable packaging material 有权
公开(公告)号：US11458714B2
公开(公告)日：2022-10-04
申请号：US16955900
申请日：2018-12-19
申请人： Stora Enso OYJ
发明人： Kaj Backfolk , Isto Heiskanen , Esa Saukkonen , Jukka Kankkunen
IPC分类号： B32B27/32 , B29C65/32 , B29C65/36 , B32B27/12 , D21H11/18 , D21H19/22 , D21H19/80 , D21H27/10 , B29C65/00
摘要： The present invention is directed to a packaging material free from aluminium in the form of a continuous foil or film, comprising a layer of microfibrillated cellulose (MFC), wherein the layer comprising MFC has been laminated or coated on at least one side with a heat-sealable material. The MFC layer contains at least 60% by weight of microfibrillated cellulose. The present invention is also directed to a method for induction sealing, wherein a packaging material to be heat-sealed by induction is placed against an induction heating surface.

9. 发明授权

US11420784B2 Food packaging articles 有权
公开(公告)号：US11420784B2
公开(公告)日：2022-08-23
申请号：US16522978
申请日：2019-07-26
申请人： Eastman Chemical Company
发明人： Kenny Randolph Parker , Charles Stuart Everett , Melvin Glenn Mitchell , Mounir Izallalen , Koushik Ghosh
IPC分类号： B32B1/02 , B65D5/00 , D21H15/10 , B65D85/36 , B65D65/46 , D21H11/20 , D21H27/10 , D21H15/04
摘要： Containers and lids made from cellulose fibers and cellulose ester fibers are provided that have enhanced air permeability, stiffness, R-heat insulation values, or thickness at equivalent grammage basis weights are provided, or alternatively, maintaining one or more of these properties while lowering the basis weight of the containers or lids. The container and lids with this synthetic fiber can be biodegradable when made with cellulose ester fibers having a degree of substitution of not more than 2.5. Examples of such containers are food packaging such as hot or cold delivery boxes.

10. 发明申请

US20220213652A1 METHOD FOR MANUFACTURING PAPER BARRIER BASE MATERIAL 有权
公开(公告)号：US20220213652A1
公开(公告)日：2022-07-07
申请号：US17598618
申请日：2020-03-27
申请人： NIPPON PAPER INDUSTRIES CO., LTD. , JUJO THERMAL OY
发明人： Yuri OISHI , Kenta WATANABE , Satoshi TSUDA , Masashi OKAMOTO , Hiroshi KOYAMOTO
IPC分类号： D21H21/16 , D21H19/36 , D21H19/82 , D21H23/48 , D21H27/10
摘要： A method for manufacturing a paper barrier base material includes a step of applying a water vapor barrier layer coating liquid that contains at least a water vapor barrier resin and a pigment onto a paper base material by a curtain coating method to form a water vapor barrier layer. The water vapor barrier layer coating liquid has a spinnability of 0.07 seconds or more and 0.4 seconds or less at a solid content concentration of 32% by weight and a temperature of 25° C. The method is intended to achieve good stability of a coating liquid and good continuous operability.

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