公开(公告)号：US20180245289A1

公开(公告)日：2018-08-30

申请号：US15758963

申请日：2016-09-16

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk ,  Esa Saukkonen

IPC: D21H21/16 ,  D21H11/18 ,  D21H17/26 ,  D21H17/57

CPC classification number: D21H21/16 ,  D21H11/18 ,  D21H17/26 ,  D21H17/57 ,  D21H19/10 ,  D21H19/36

Abstract: A method for manufacturing a film, wherein said film has a basis weight of less than 50 g/m2 and wherein the density of the film is higher than 750 kg/m2 comprising the steps of: providing a suspension comprising microfiber Hated cellulose (MFC); forming a web of said suspension on a porous wire, microfibrillated cellulose (MFC); surface sizing said web, wherein the web, at the beginning of the surface sizing step, has a moisture content in the rage from 10 to 50 wt-%; drying said surface sized web to a final moisture content of between 0.1-20 wt-% to form said film.

公开(公告)号：US20180245287A1

公开(公告)日：2018-08-30

申请号：US15754870

申请日：2016-09-16

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk

IPC: D21H11/18 ,  D21H21/10 ,  D21H17/32 ,  D21H17/37 ,  B32B27/10

CPC classification number: D21H11/18 ,  B32B27/10 ,  B32B2250/02 ,  B32B2323/043 ,  B32B2323/046 ,  D21H17/22 ,  D21H17/24 ,  D21H17/28 ,  D21H17/31 ,  D21H17/32 ,  D21H17/375 ,  D21H21/10

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

公开(公告)号：US20180237990A1

公开(公告)日：2018-08-23

申请号：US15755407

申请日：2016-08-23

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Henri Kastinen ,  Lars Axrup ,  Saija Pollanen ,  Jani Korhonen ,  Petri Suhonen ,  Teemu Tiainen ,  Matti Vakevainen

IPC: D21D1/20 ,  D21H11/18 ,  D21C9/00

CPC classification number: D21D1/20 ,  D21C9/007 ,  D21H11/18

Abstract: Method for producing microfibrillated cellulose(MFC), wherein the method comprising the steps of: Pre-treating of chemical pulp, such that, the pulp reaches a Schopper-Riegler (SR) value above 50, and refining the pulp, at a consistency of 3-6%, in a refiner with refiner blades, wherein the height of the refiner blades is in the range 2-3 mm.

公开(公告)号：US10011096B2

公开(公告)日：2018-07-03

申请号：US14646565

申请日：2013-11-13

Applicant: Stora Enso OYJ

Inventor： Kimmo Nevalainen ,  Ville Ribu

IPC: B32B27/08 ,  B32B27/10 ,  B32B27/32 ,  A47G19/22 ,  B29C47/02 ,  B29C47/06 ,  B32B37/15 ,  B32B27/12 ,  B29C47/00 ,  B29K23/00 ,  B29K105/00 ,  B29K711/12

CPC classification number: B32B27/08 ,  A47G19/2205 ,  A47G2400/10 ,  B29C48/022 ,  B29C48/154 ,  B29C48/21 ,  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：US20180163326A1

公开(公告)日：2018-06-14

申请号：US15580826

申请日：2016-06-09

Applicant: Stora Enso OYJ

Inventor： Niklas Garoff ,  Robert Protz ,  Jens Erdmann ,  Johnannes Ganster ,  André Lehmann

IPC: D01F9/17 ,  C01B32/05 ,  D01F2/00 ,  D01D10/02 ,  D02J1/22 ,  D01D5/06

CPC classification number: D01F9/17 ,  C01B32/05 ,  C08B16/00 ,  C08L1/02 ,  C08L97/005 ,  D01D5/06 ,  D01D10/02 ,  D01F2/00 ,  D01F9/16 ,  D02J1/22 ,  D02J1/221

Abstract: The present invention relates to a method for manufacturing thermally stabilized, non-sticky and stretchable fibers, which may be further processed into intermediate carbon fibers and finally also carbon fibers. Uses of said fibers are also disclosed. Also a highly oriented intermediate carbon fiber is disclosed together with a highly oriented carbon fiber.

公开(公告)号：US20180162958A1

公开(公告)日：2018-06-14

申请号：US15580818

申请日：2016-06-09

Applicant: Stora Enso OYJ

Inventor： Jari Kavakka ,  Mari Granstrom

IPC: C08B37/00

CPC classification number: C08B37/0057 ,  C08B37/0003 ,  C08H8/00 ,  C13K13/002

Abstract: Methods for producing refined xylan from a biomass solution, including: (i) providing a biomass solution, which comprises xylan; (ii) concentrating or separating said biomass solution to obtain a xylan concentrate comprising xylan and impurities; (iii) washing and/or extracting the xylan concentrate with a solvent to obtain refined xylan and a solvent stream comprising the solvent and impurities; and (iv) collecting the refined xylan.

公开(公告)号：US09862000B2

公开(公告)日：2018-01-09

申请号：US15146006

申请日：2016-05-04

Applicant: STORA ENSO OYJ

Inventor： Petri Sirviö ,  Juha Maijala

IPC: H05K3/10 ,  B05B5/14 ,  B05C1/00 ,  B05D3/12 ,  B05C19/00 ,  B05D1/00 ,  B05D1/28 ,  B05D3/02 ,  B05D3/06 ,  C23C26/02 ,  H05K1/03 ,  H05K3/12

CPC classification number: B05C1/003 ,  B05C19/008 ,  B05D1/007 ,  B05D1/28 ,  B05D3/0263 ,  B05D3/029 ,  B05D3/06 ,  B05D3/12 ,  C23C26/02 ,  H05K1/038 ,  H05K1/0386 ,  H05K3/102 ,  H05K3/1241 ,  H05K3/1266 ,  H05K3/1283 ,  H05K2201/0293 ,  H05K2203/0126 ,  H05K2203/0517 ,  H05K2203/0522 ,  H05K2203/102 ,  H05K2203/1105 ,  H05K2203/1476 ,  H05K2203/1545 ,  H05K2203/1581

Abstract: A method and an arrangement are disclosed for producing an electrically conductive pattern on a surface. Electrically conductive solid particles are transferred onto an area of predetermined form on a surface of a substrate. The electrically conductive solid particles are heated to a temperature that is higher than a characteristic melting point of the electrically conductive solid particles, thus creating a melt. The melt is pressed against the substrate in a nip, wherein a surface temperature of a portion of the nip that comes against the melt is lower than said characteristic melting point.

公开(公告)号：US20170335519A1

公开(公告)日：2017-11-23

申请号：US15527161

申请日：2015-11-19

Applicant: Stora Enso Oyj ,  Omya International AG

Inventor： Philip Hakansson

IPC: D21H19/38 ,  D21H19/52 ,  C09C1/02 ,  D21H19/54

Abstract: The invention discloses a method of producing a filler composition to be used in paper or board production, said method comprising providing a suspension comprising calcium hydroxide and performing carbonation of the calcium hydroxide to form precipitated calcium carbonate (PCC). The invention is characterized in that starch and/or carboxy methyl cellulose (CMC) is added to the suspension during said carbonation of calcium hydroxide. The method of the invention enables an increased filler content in paper or paperboard without substantially increasing the dusting tendency or decreasing the strength of the paper or board.

公开(公告)号：US20170306561A1

公开(公告)日：2017-10-26

申请号：US15516278

申请日：2015-09-30

Applicant: Stora Enso OYJ

Inventor： Jan-Erik Nordström ,  Jari Räsänen

IPC: D21F11/00 ,  D21F5/00 ,  A61L2/08 ,  D21F5/02 ,  D21H27/30 ,  H01J37/317

CPC classification number: D21F11/002 ,  A61L2/087 ,  D21F5/002 ,  D21F5/022 ,  D21H27/30 ,  H01J37/317 ,  H01J2237/316

Abstract: Method for producing a sterilized foam web, wherein the method comprising the steps of preparing a wet foam (1),feeding the wet foam (1) to a head box (2, 11),distributing the wet foam by the head box (2, 11),treating the wet foam (1) with electron beam radiation (3a, 3b, 3c) to immobilize and sterilize the wet foam (1),receiving the electron beam treated foam on a moving wire (4) to form a foam web (6, 13), pressing and the foam web (6, 13),and drying the foam web (6, 13).

公开(公告)号：US09663901B2

公开(公告)日：2017-05-30

申请号：US14396634

申请日：2013-04-25

Applicant: STORA ENSO OYJ

Inventor： Isto Heiskanen ,  Karita Kinnunen ,  Tuomo Hjelt

IPC: D21H27/30 ,  D21H21/16 ,  D21H11/02 ,  D21H17/22 ,  D21H11/18 ,  D21H21/24 ,  D21H21/56 ,  D21H17/17 ,  D21F11/00

CPC classification number: D21H27/30 ,  D21F11/002 ,  D21H11/02 ,  D21H11/18 ,  D21H17/17 ,  D21H17/22 ,  D21H21/16 ,  D21H21/24 ,  D21H21/56

Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fiber-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fiber length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.