公开(公告)号：US20240344272A1

公开(公告)日：2024-10-17

申请号：US18619586

申请日：2024-03-28

申请人： KEMIRA OYJ

发明人： Yuping LUO ,  Yong ZOU ,  Michael CLARK ,  Louis ROSATI

IPC分类号： D21H19/18 ,  D21H19/28 ,  D21H19/34 ,  D21H25/06

CPC分类号： D21H19/18 ,  D21H19/28 ,  D21H19/34 ,  D21H25/06

摘要： The present invention relates to compositions and methods for forming substantially bio-based barrier coatings suitable for application on paper and board substrates, and paper and board substrates on which are applied one or more layers of such substantially bio-based barrier coatings. The inventive bio-based barrier coatings comprise a biowax emulsion comprising one or more biowaxes, such as castor oil wax, formed by hydrogenation of a bio-based oil, such as castor oil. The barrier coating composition is formed by dispersing a biowax emulsion into a polyhydroxyalkanoate (PHA) dispersion, and may be applied as a coating e.g., on paper or board, e.g., those comprised of recycled fibers, using conventional industrial methods at ambient temperatures.

公开(公告)号：US20240301628A1

公开(公告)日：2024-09-12

申请号：US18563704

申请日：2022-05-25

申请人： Kemira Oyj

发明人： Kaisa Karisalmi

IPC分类号： D21H19/34 ,  D21H21/16 ,  D21H27/10

CPC分类号： D21H19/34 ,  D21H21/16 ,  D21H27/10

摘要： Provided is the use of a film of a cellulose ester as a barrier against moisture and oil. The cellulose ester has free hydroxyl groups and ester substituents. The ester substituents are each individually selected from C1 to C6 alkyl ester groups. The free hydroxyl groups are present in an amount in the range 15% to 40 mol %. The film is useful as a barrier layer for food packaging. Also provided is a composition comprising the cellulose ester and a further film-forming material, a packaging material comprising a film of the composition, and a method for manufacturing the packaging material.

公开(公告)号：US20240167225A1

公开(公告)日：2024-05-23

申请号：US18514535

申请日：2023-11-20

申请人： FIBERLEAN TECHNOLOGIES LIMITED

发明人： Thomas REEVE-LARSON ,  Mark PARADIS ,  Jonathan PHIPPS ,  Per SVENDING ,  Daniel INGLE ,  David SKUSE

IPC分类号： D21H19/34 ,  D21H19/30 ,  D21H19/82

CPC分类号： D21H19/34 ,  D21H19/30 ,  D21H19/824

摘要： Methods of sequentially applying nanocellulose(s) onto the surface of paper and paperboard substrates, paper or paperboard prepared using said methods, and systems for producing paper or paperboard having sequentially applied nanocellulose(s).

公开(公告)号：US20240093430A1

公开(公告)日：2024-03-21

申请号：US18466026

申请日：2023-09-13

申请人： SEIKO EPSON CORPORATION

发明人： Hidemasa KANADA ,  Yoshiyuki NAGAI ,  Masanao FUKASAWA ,  Kazuma MIYAZAWA ,  Masahide NAKAMURA

IPC分类号： D21F9/00 ,  D21H19/34

CPC分类号： D21F9/00 ,  D21H19/34

摘要： There is provided a sheet manufacturing apparatus including: an accumulation section that accumulates a material containing fibers by an air flow to form a web; a humidification section that applies moisture from one surface side of the web; and a pressurization section that pressurizes the humidified web to form a sheet, in which the pressurization section includes a first roller that comes into contact with one surface of the web and a second roller that comes into contact with the other surface of the web, and a surface of the first roller is harder than a surface of the second roller.

公开(公告)号：US09994999B2

公开(公告)日：2018-06-12

申请号：US13512725

申请日：2010-12-20

申请人： Lars Axrup ,  Isto Heiskanen ,  Kaj Backfolk

发明人： Lars Axrup ,  Isto Heiskanen ,  Kaj Backfolk

IPC分类号： D21H11/18 ,  D21H27/10 ,  D21H19/34 ,  B65D65/42 ,  B32B27/32 ,  B32B27/10 ,  B32B29/00

CPC分类号： D21H11/18 ,  B32B27/10 ,  B32B27/32 ,  B32B29/00 ,  B65D65/42 ,  D21H19/34 ,  D21H27/10 ,  Y10T156/10 ,  Y10T428/253

摘要： The present invention relates to a paper or paperboard substrate having barrier properties which substrate comprises a first fiber based layer, a second layer comprising micro-fibrillated cellulose, a third layer comprising a heat sealable polymer, and a fourth layer comprising aluminum, aluminum oxide or titanium dioxide. The invention further relates to a process for the production of said substrate and a package formed of said substrate.

公开(公告)号：US09926385B2

公开(公告)日：2018-03-27

申请号：US14447846

申请日：2014-07-31

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Akira Kitamura ,  Mitsuo Narita ,  Takuya Yokosawa ,  Yuichi Nishiyama

IPC分类号： C08B11/20 ,  C09D101/28 ,  C08B1/06 ,  C08B1/08 ,  C08B11/00 ,  C08B15/00 ,  C09D101/26 ,  D21C9/00 ,  D21H15/02 ,  D21H19/34 ,  D21H19/52

CPC分类号： C08B11/20 ,  C08B1/06 ,  C08B1/08 ,  C08B11/00 ,  C08B15/00 ,  C09D101/26 ,  C09D101/284 ,  D21C9/004 ,  D21C9/007 ,  D21H15/02 ,  D21H19/34 ,  D21H19/52

摘要： Provided are a method for producing a water-soluble cellulose ether having a low degree of polymerization and enhanced whiteness, and the like. The method includes the steps of: bringing a pulp powder having a multiplication product of less than 0.004 mm2 which is obtained by multiplying a number-average fiber length by a number-average fiber width, each measured with a Kajaani fiber length analyzer, into contact with an alkali metal hydroxide to obtain an alkali cellulose; reacting the alkali cellulose with an etherifying agent to obtain a crude water-soluble cellulose ether having a high degree of polymerization; purifying the crude water-soluble cellulose ether; drying the purified water-soluble cellulose ether; grinding the dried water-soluble cellulose ether into a water-soluble cellulose ether powder; and depolymerizing the water-soluble cellulose ether powder to obtain the water-soluble cellulose ether having a low degree of polymerization.

公开(公告)号：US20170365195A1

公开(公告)日：2017-12-21

申请号：US15691231

申请日：2017-08-30

申请人： Avery Dennison Corporation

发明人： Priscilla Franklin

IPC分类号： G09F3/00 ,  B32B37/12 ,  B32B38/10 ,  B32B38/00 ,  B32B7/12 ,  G09F3/02 ,  D21H19/34 ,  D21H13/04 ,  D21H11/00 ,  C09J155/00 ,  C09J133/14 ,  C09J9/00 ,  C09J7/04 ,  C09J7/02 ,  C08L33/04 ,  B41M5/44 ,  B41M5/333 ,  B41M5/323 ,  B32B29/00 ,  B32B27/10 ,  B32B9/00 ,  B32B7/04

CPC分类号： G09F3/0291 ,  B32B7/04 ,  B32B7/12 ,  B32B9/00 ,  B32B27/10 ,  B32B29/00 ,  B32B37/12 ,  B32B38/10 ,  B32B38/145 ,  B32B2307/7166 ,  B32B2307/75 ,  B41M5/323 ,  B41M5/333 ,  B41M5/44 ,  B41M2205/04 ,  B41M2205/40 ,  C08L33/04 ,  C09J7/201 ,  C09J7/21 ,  C09J7/38 ,  C09J7/385 ,  C09J7/40 ,  C09J9/00 ,  C09J133/14 ,  C09J155/005 ,  C09J2401/006 ,  D21H11/00 ,  D21H13/04 ,  D21H19/34 ,  G09F2003/0202 ,  G09F2003/0211 ,  G09F2003/0216 ,  G09F2003/022 ,  G09F2003/0225 ,  G09F2003/0242 ,  Y10S428/913 ,  Y10T156/10 ,  Y10T156/11 ,  Y10T156/1111 ,  Y10T428/1476 ,  Y10T428/24 ,  Y10T428/28 ,  Y10T428/2848 ,  Y10T428/2891

摘要： A label assembly including one or more dissolvable thermal direct adhesive labels and methods of assembly and use. According to one embodiment, each label includes a base layer, a thermal direct layer, an adhesive layer, and a barrier layer. The base layer, which has an upper surface and a lower surface, is water-dissolvable and may be made of a water-dissolvable paper. The thermal direct layer is positioned directly over the upper surface of the base layer and functions in the conventional manner to produce markings therein in response to heat. The adhesive layer is water-dissolvable and is positioned below the lower surface of the base layer. The barrier layer, which is positioned directly below the lower surface of the base layer and directly over the adhesive layer, serves to prevent migration of the adhesive layer through the base layer and into contact with the thermal direct layer.

公开(公告)号：US20170342661A1

公开(公告)日：2017-11-30

申请号：US15535456

申请日：2015-12-14

申请人： STORA ENSO OYJ

发明人： Christian Aulin ,  Lars Axrup ,  Göran Flodberg ,  Magnus Hillergren ,  Tom Lindström ,  Carl-Henrik Ljungqvist ,  Göran Ström

IPC分类号： D21H19/34 ,  D21H23/70 ,  D21H11/18 ,  D21H23/50 ,  D21H27/32 ,  D21H27/10

CPC分类号： D21H19/34 ,  B32B37/153 ,  B32B2037/243 ,  B32B2317/12 ,  D21H11/18 ,  D21H23/50 ,  D21H23/70 ,  D21H27/10 ,  D21H27/32

摘要： The present invention relates to process for the production of a coated substrate comprising cellulosic fibres, the process comprising the steps of: i) providing a first substrate comprising cellulosic fibres and having a dry content of less than 50%; ii) applying a coating composition to the first substrate in an amount of more than 5 g/m2, calculated as dry weight of the coating composition, wherein the coating composition comprises: microfibrillated cellulose (MFC), and optionally a water retention agent selected from carboxymethyl cellulose (CMC), anionic polyacrylamide (A-PAM), sodium polyacrylates, polyacrylic acid derivatives, guar gum, alginate, MFC prepared from carboxymethylated fibers, MFC prepared from oxidized fibers, MFC prepared by CMC-functionalised fibers, and/or combinations thereof; and iii) mechanically dewatering the first substrate. The present process provides an energy efficient coating process which can be performed online.

公开(公告)号：US20170072670A1

公开(公告)日：2017-03-16

申请号：US15260096

申请日：2016-09-08

申请人： University of Maine System Board of Trustees

发明人： Mehdi Tajvidi ,  Douglas W. Bousfield

IPC分类号： B32B29/00 ,  B32B38/08 ,  B32B37/06 ,  B32B7/08 ,  B32B37/10

CPC分类号： B32B29/005 ,  B32B7/04 ,  B32B38/08 ,  B32B2250/05 ,  B32B2250/26 ,  B32B2260/023 ,  B32B2260/028 ,  B32B2260/04 ,  B32B2262/062 ,  B32B2307/54 ,  B32B2307/546 ,  B32B2307/7163 ,  B32B2317/12 ,  B32B2419/00 ,  B32B2553/00 ,  B32B2605/08 ,  B32B2607/00 ,  D21H11/18 ,  D21H17/25 ,  D21H19/34 ,  D21H27/30

摘要： Strong, light-weight composite laminates are made by impregnating layers of paper with a cellulose nanofiber (CNF) slurry, laying the coated papers up in a plurality of layers or stack, and subjecting the stack to pressure and heat for a period of time sufficient to cause the CNF to impregnate, reinforce, and bond the paper layers into a composite. The resulting composite has impressive mechanical strength and exhibits a substantially homogeneous composition throughout its depth. The composite should have good strength to weight properties, and be recyclable or compostable.

摘要翻译： 通过用纤维素纳米纤维（CNF）浆料浸渍纸层，将涂布的纸张放置在多个层或堆叠中，并使堆叠体经受压力和加热足够长的时间来制备强而轻的复合层压板 以使CNF浸渍，增强和粘合纸层成复合材料。 所得到的复合材料具有令人印象深刻的机械强度并且在整个深度上表现出基本均匀的组成。 该复合材料应具有良好的重量特性，可回收利用或可堆肥化。

公开(公告)号：US20160351084A1

公开(公告)日：2016-12-01

申请号：US15233727

申请日：2016-08-10

申请人： Avery Dennison Corporation

发明人： Priscilla Franklin

IPC分类号： G09F3/00 ,  B32B38/00 ,  B32B37/12 ,  B32B7/12 ,  B32B38/10

CPC分类号： G09F3/0291 ,  B32B7/04 ,  B32B7/12 ,  B32B9/00 ,  B32B27/10 ,  B32B29/00 ,  B32B37/12 ,  B32B38/10 ,  B32B38/145 ,  B32B2307/7166 ,  B32B2307/75 ,  B41M5/323 ,  B41M5/333 ,  B41M5/44 ,  B41M2205/04 ,  B41M2205/40 ,  C08L33/04 ,  C09J7/201 ,  C09J7/21 ,  C09J7/38 ,  C09J7/385 ,  C09J7/40 ,  C09J9/00 ,  C09J133/14 ,  C09J155/005 ,  C09J2401/006 ,  D21H11/00 ,  D21H13/04 ,  D21H19/34 ,  G09F2003/0202 ,  G09F2003/0211 ,  G09F2003/0216 ,  G09F2003/022 ,  G09F2003/0225 ,  G09F2003/0242 ,  Y10S428/913 ,  Y10T156/10 ,  Y10T156/11 ,  Y10T156/1111 ,  Y10T428/1476 ,  Y10T428/24 ,  Y10T428/28 ,  Y10T428/2848 ,  Y10T428/2891

摘要： A label assembly including one or more dissolvable thermal direct adhesive labels and methods of assembly and use. According to one embodiment, each label includes a base layer, a thermal direct layer, an adhesive layer, and a barrier layer. The base layer, which has an upper surface and a lower surface, is water-dissolvable and may be made of a water-dissolvable paper. The thermal direct layer is positioned directly over the upper surface of the base layer and functions in the conventional manner to produce markings therein in response to heat. The adhesive layer is water-dissolvable and is positioned below the lower surface of the base layer. The barrier layer, which is positioned directly below the lower surface of the base layer and directly over the adhesive layer, serves to prevent migration of the adhesive layer through the base layer and into contact with the thermal direct layer.

摘要翻译： 一种标签组件，包括一种或多种可溶解的热直接粘合剂标签以及组装和使用方法。 根据一个实施例，每个标签包括基底层，热直接层，粘合剂层和阻挡层。 具有上表面和下表面的基层是可水溶性的，并且可以由水溶性纸制成。 热直接层直接定位在基层的上表面上，并以常规方式起作用以在其中响应于热而产生标记。 粘合剂层是可水溶的并且位于基层的下表面的下方。 位于基底层的下表面正下方并且直接位于粘合剂层上方的阻挡层用于防止粘合剂层通过基底层迁移并与热直接层接触。