公开(公告)号：US12077654B2

公开(公告)日：2024-09-03

申请号：US16565663

申请日：2019-09-10

申请人： GranBio Intellectual Property Holdings, LLC

发明人： Kimberly Nelson ,  Theodora Retsina

IPC分类号： C08L1/02 ,  C08B37/00 ,  C08H8/00 ,  C08J9/00 ,  C08J9/36 ,  C09D101/02 ,  C09D197/00 ,  D21C3/04 ,  D21C9/00 ,  D21C11/00 ,  D21H11/08 ,  D21H19/34

CPC分类号： C08L1/02 ,  C08B37/0057 ,  C08H8/00 ,  C08J9/0061 ,  C08J9/365 ,  C09D101/02 ,  C09D197/005 ,  D21C3/04 ,  D21C9/007 ,  D21C11/0007 ,  D21H11/08 ,  D21H19/34 ,  C08J2301/02 ,  C08J2497/00 ,  Y02P40/40 ,  Y10T428/2933 ,  Y10T428/2991 ,  Y10T442/20

摘要： In some variations, the present invention provides an oil-resistant paperboard material coated with hydrophobic nanocellulose. The paperboard material is free of a fluorocarbon coating. In other variations, an oil-resistant paper is coated with hydrophobic nanocellulose and is free of a fluorocarbon coating. The hydrophobic nanocellulose may include lignin-coated cellulose nanofibrils, lignin-coated cellulose nanocrystals, or a combination thereof. A process for producing these materials is also provided, comprising: fractionating a lignocellulosic biomass feedstock in the presence of an acid, a solvent for lignin, and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin, wherein a portion of the lignin deposits onto a surface of the cellulose-rich solids, thereby rendering the cellulose-rich solids at least partially hydrophobic; mechanically treating the cellulose-rich solids to form hydrophobic nanocellulose; and coating a paper or paperboard material with the hydrophobic nanocellulose, to generate an oil-resistant paper or paperboard material.

公开(公告)号：US11926128B2

公开(公告)日：2024-03-12

申请号：US17256058

申请日：2019-06-25

申请人： Stora Enso OYJ

发明人： Seppo Lampainen ,  Frank Peng ,  Atso Laakso ,  Ari-Pekka Määttänen

IPC分类号： B32B29/08 ,  B32B7/05 ,  B32B29/00 ,  D21H11/02 ,  D21H11/04 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/42 ,  D21H17/44 ,  D21H27/30 ,  D21H27/40

CPC分类号： B32B29/08 ,  B32B7/05 ,  B32B29/005 ,  D21H1/02 ,  D21H11/02 ,  D21H11/04 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/42 ,  D21H17/44 ,  D21H27/40 ,  B32B2250/26 ,  B32B2307/546 ,  B32B2307/718 ,  B32B2307/72

摘要： The invention relates to a lightweight linerboard for corrugated board with good strength properties and which reduces problems with washboarding in the thereof produced corrugated board. The linerboard of the invention comprises at least one ply comprising 20-80 wt % CTMP from wood fibers and 20-80 wt % chemical pulp, all percentages calculated on the total fiber weight of said first ply, wherein the CTMP exhibits a bulk of at least 2.5 cm3/g.

公开(公告)号：US20230323606A1

公开(公告)日：2023-10-12

申请号：US18333317

申请日：2023-06-12

申请人： MERCER INTERNATIONAL INC

发明人： Tobias Ziegenbein

IPC分类号： D21H27/30 ,  D21H11/08 ,  D21H11/18 ,  D21H15/02 ,  D21H27/00 ,  D21F11/14 ,  D21H11/02 ,  D21H17/44 ,  D21H21/20 ,  B32B29/00

CPC分类号： D21H27/30 ,  B32B2554/00 ,  D21H11/18 ,  D21H15/02 ,  D21H27/002 ,  D21F11/14 ,  D21H11/02 ,  D21H17/44 ,  D21H21/20 ,  D21H27/005 ,  B32B29/005 ,  B32B2250/02 ,  B32B2307/54 ,  B32B2317/12 ,  D21H11/08

摘要： A differential density absorbent towel paper product comprising at least one absorbent towel paper web is disclosed. The absorbent towel paper web has: (a) from about 20% to about 90% by weight of the dry fiber basis of the absorbent towel paper web of a refined soft wood pulp fiber mixture, (b) pulp fibers selected from the group consisting of hard wood fibers, non-wood fibers, recycled fibers, synthetic polymer fibers, bleached eucalyptus kraft fibers, and combinations thereof and, (c) not more than about 10% by weight moisture. The refined soft wood pulp fiber mixture has: i) from about 18.5% to about 88.5% by weight of soft wood pulp fiber; ii) from about 0.25% to about 5.0% by of cationic strengthening polymer; and, iii) from about 0.05% to about 20% by weight of cellulose nano-filaments.

公开(公告)号：US20230313463A1

公开(公告)日：2023-10-05

申请号：US18042124

申请日：2021-08-31

申请人： Stora Enso OYJ

发明人： Isto Heiskanen ,  Kaj Backfolk ,  Anna Kauppi ,  Katja Lyytikäinen ,  Jukka Kankkunen ,  Juha Korvenniemi

IPC分类号： D21H11/08 ,  D21H11/18 ,  D21H15/02 ,  D21H27/30

CPC分类号： D21H11/08 ,  D21H11/18 ,  D21H15/02 ,  D21H27/30

摘要： The present invention relates to a method for manufacturing a multilayer film comprising microfibrillated cellulose (MFC) in a paper-making machine, the method comprising the steps of: a) forming a bottom web layer by applying a first pulp suspension comprising at least 50% by dry weight of cellulose based fibrous material having an SR (Schopper-Riegler) value in the range of 18-75 on a bottom web wire; b) forming or applying an intermediate web layer formed from a second pulp suspension comprising at least 50% by dry weight of MFC having an SR value in the range of 80-100 on the bottom web layer; c) applying a top web layer formed from a third pulp suspension comprising at least 50% by dry weight of cellulose based fibrous material having an SR (Schopper-Riegler) value in the range of 18-75 on the intermediate web layer to form a multilayer web; and d) dewatering, and optionally drying, the formed multilayer web to obtain a multilayer film comprising MFC.

公开(公告)号：US20230257936A1

公开(公告)日：2023-08-17

申请号：US17991834

申请日：2022-11-21

申请人： ShenZhen YUTO Packaging Technology Co., Ltd.

发明人： Zhangyan CHEN ,  Guocheng HAN ,  Rui GUO ,  Mengyao LI ,  Yinglong WANG ,  Yanfei CHENG

IPC分类号： D21C1/06 ,  D21C3/02 ,  D21C1/10 ,  D21H11/08

CPC分类号： D21C1/06 ,  D21C3/02 ,  D21C1/10 ,  D21H11/08

摘要： This application provides a paper pulp, a method for producing paper pulp, and a paper pulp product. The method for producing paper pulp includes: crushing bamboo shoot shells to obtain crushed materials; mixing the crushed materials with cooking, cooking the mixture to obtain slurry; washing the slurry to obtain waste liquid and washed slurry; purifying the washed slurry to obtain the paper pulp.

公开(公告)号：US20190218716A1

公开(公告)日：2019-07-18

申请号：US16334371

申请日：2017-09-20

申请人： Hans Hoglund ,  Gunilla Pettersson ,  Sven Norgren ,  Per Engstrand

发明人： Hans Hoglund ,  Gunilla Pettersson ,  Sven Norgren ,  Per Engstrand

IPC分类号： D21F3/02 ,  D21H11/02 ,  D21H11/08 ,  D21H11/10

CPC分类号： D21F3/0281 ,  D21H11/02 ,  D21H11/08 ,  D21H11/10

摘要： A method of producing a paper or paperboard product having at least one ply comprising high yield pulp (HYP), comprising the steps of: —providing a furnish comprising at least 50% of high yield pulp (HYP) of a total pulp content in said furnish, said high yield pulp being produced with a wood yield above 85%; —dewatering the furnish to form a moist web and pressing said moist web to a dry solids content of at least 40-70%; and —densifying the moist web to a density above 600 kg/m3 in a press nip of a paper machine at a temperature above a softening temperature of water-saturated lignin comprised in said high yield pulp to provide a paper or paperboard product, containing at least 30% high yield pulp (HYP) of a total pulp content of said product.

公开(公告)号：US20190100883A1

公开(公告)日：2019-04-04

申请号：US16173425

申请日：2018-10-29

申请人： Kimberly-Clark Worldwide, Inc.

发明人： Thomas Gerard Shannon ,  Richard Louis Underhill ,  Kevin Leon LaBerge ,  John Matthew Reiser ,  Gilbert Darrell Gafford

IPC分类号： D21H27/00 ,  D21H27/30 ,  D21H11/02 ,  D21H11/12 ,  D21H11/08 ,  D21H27/38 ,  D21H11/10

CPC分类号： D21H27/007 ,  D21H11/02 ,  D21H11/08 ,  D21H11/10 ,  D21H11/12 ,  D21H27/002 ,  D21H27/004 ,  D21H27/30 ,  D21H27/38

摘要： The present invention provides soft, durable and bulky tissue products comprising non-wood fibers and more particularly hesperaloe fiber. The inventors have discovered that high yield hesperaloe pulp fiber, when incorporated in amounts of at least about 5 percent by weight of the tissue product, produces products having a GMT less than about 1000 g/3″ and a GM Slope less than about 7.0 kg. At the foregoing tensile strengths and modulus the tissue products of the present invention are also generally soft, such as having a Stiffness Index less than about 10.0, and more preferably less than about 9.0, such as from about 7.0 to about 9.0.

公开(公告)号：US20180187377A1

公开(公告)日：2018-07-05

申请号：US15708241

申请日：2017-09-19

申请人： Mercer International Inc.

发明人： Tobias Ziegenbein

IPC分类号： D21H27/00 ,  D21H21/20 ,  D21H17/44

CPC分类号： D21H27/30 ,  B32B29/005 ,  B32B2250/02 ,  B32B2307/54 ,  B32B2317/12 ,  B32B2554/00 ,  D21F11/14 ,  D21H11/02 ,  D21H11/08 ,  D21H11/18 ,  D21H15/02 ,  D21H17/44 ,  D21H21/20 ,  D21H27/002 ,  D21H27/005

摘要： An absorbent towel paper web having a machine direction and a cross-machine direction orthogonal to the machine direction, the web comprising from about 20% to about 90% by weight of the dry fiber basis of the paper web of a refined soft wood pulp fiber mixture comprising from about 18.5% to about 88.5% by weight of the dry fiber basis of the tissue paper web of soft wood pulp fiber, wherein the soft wood pulp fiber is optionally refined before being added to the mixture; from about 0.25% to about 5.0% by weight of the dry fiber basis of the tissue paper web of cationic strengthening polymer, from about 10% to about 60% by weight of the dry fiber basis of the tissue paper web of a hard wood pulp fiber mixture; and not more than about 8% by weight moisture; wherein the paper web has a Mean Square Tensile Strength ranging from about 6 N·m/g to about 12 N·m/g; and wherein the paper web has a Cross-directional Wet Tensile Strength to Cross-directional Dry Tensile Strength Ratio value ranging from about 0.295 to about 0.35.

公开(公告)号：US09765482B2

公开(公告)日：2017-09-19

申请号：US15026872

申请日：2014-10-03

申请人： BASF SE

发明人： Paul Kenneth Cutts

IPC分类号： D21H21/10 ,  D21H17/67 ,  D21H17/37 ,  D21H11/08 ,  D21H11/12 ,  D21H17/44 ,  D21H17/68 ,  D21H11/10

CPC分类号： D21H17/675 ,  D21H11/08 ,  D21H11/10 ,  D21H11/12 ,  D21H17/375 ,  D21H17/44 ,  D21H17/67 ,  D21H17/68 ,  D21H21/10

摘要： The present invention relates to a process of manufacturing paper or paperboard which comprises providing (a) a mechanical pulp and (b) a wood free pulp, combining (a) the mechanical pulp and (b) the wood free pulp to form a mixed pulp comprising no more than 20% by total dry weight of fiber of the mechanical pulp, flowing the mixed pulp as a medium consistency stock and combining the medium consistency stock with dilution water to form a low consistency stock, draining the low consistency stock through a wire or mesh to form a sheet of paper which is dried, in which additional filler and a cationic polymer are added to the mechanical pulp.

公开(公告)号：US20160340835A1

公开(公告)日：2016-11-24

申请号：US15226939

申请日：2016-08-03

申请人： Georgia-Pacific Consumer Products LP

发明人： Jeffrey A. Lee ,  Daniel W. Sumnicht

IPC分类号： D21H27/40 ,  D21H27/00 ,  B32B29/06 ,  D21H11/08 ,  D21H11/02 ,  B32B29/00 ,  D21H13/08 ,  D21H27/30

CPC分类号： D21H27/40 ,  B32B3/30 ,  B32B29/005 ,  B32B29/06 ,  B32B2250/03 ,  B32B2555/00 ,  D21H11/02 ,  D21H11/08 ,  D21H13/08 ,  D21H27/002 ,  D21H27/005 ,  D21H27/30 ,  Y10T428/24612 ,  Y10T428/24942

摘要： A cellulosic tissue includes cellulosic fibers that include at least one of (a) chemically pulped fibers and (b) mechanically pulped fibers. The cellulosic fibers include (i) from about 10% to about 50% by weight eucalyptus fibers, and (ii) a percentage by weight of regenerated cellulosic microfibers. The cellulosic fibers further include virgin chemically pulped fibers, recycle fiber with a percentage by weight The eucalyptus fibers have been prepared from eucalyptus chips by alkaline peroxide mechanical pulping, exhibiting an ISO brightness of at least 0.82×(% VCP)+0.795×(% RF)0.98+0.84×(% APMP), in which % VCP is the percentage of virgin chemical pulp in the tissue, % RF, the percentage of recycle fiber, and % alkaline peroxide mechanical pulping (APMP), the percentage of APMP eucalyptus.

摘要翻译： 纤维素组织包括纤维素纤维，其包括（a）化学制浆纤维和（b）机械制浆纤维中的至少一种。 纤维素纤维包括（i）约10重量％至约50重量％的桉树纤维，和（ii）重量百分比的再生纤维素微纤维。 纤维素纤维还包括纯化学纸浆纤维，重量百分比的再生纤维桉树纤维由碱性过氧化物机械制浆由桉树芯片制成，显示出至少0.82×（％VCP）+ 0.795×（％ RF）0.98±0.84×（％APMP），其中％VCP是组织中原始化学纸浆的百分比，RF的RF，循环纤维的百分比和碱性过氧化物机械制浆（APMP）的百分比，APMP桉树的百分比 。