公开(公告)号：US11802376B2

公开(公告)日：2023-10-31

申请号：US17055145

申请日：2018-05-14

Applicant: KEMIRA OYJ

Inventor： Chen Lu ,  Jenna Rabideau

IPC: D21H17/20 ,  D21H17/30 ,  C08B31/00 ,  C08B37/00 ,  C08L1/08 ,  C08L3/04 ,  C08L5/04 ,  D21H17/25 ,  D21H17/28 ,  D21H17/37 ,  D21H21/18

CPC classification number: D21H17/30 ,  C08B31/003 ,  C08B37/0084 ,  C08L1/08 ,  C08L3/04 ,  C08L5/04 ,  D21H17/25 ,  D21H17/28 ,  D21H17/375 ,  D21H21/18

Abstract: The present invention relates to a polymer composition comprising an anionic polymer composite having a synthesized polymer portion and a polysaccharide portion, obtainable by polymerizing vinyl monomers in the presence of the polysaccharide. The present invention further relates to a strength system and methods of production and use in providing a paper product.

公开(公告)号：US11639581B2

公开(公告)日：2023-05-02

申请号：US16022749

申请日：2018-06-29

Applicant: The Procter & Gamble Company

Inventor： Steven Lee Barnholtz ,  Paul Dennis Trokhan ,  Michael Donald Suer

IPC: D21H15/00 ,  D04H1/56 ,  D21H27/30 ,  D04H1/407 ,  D04H1/425 ,  D21H11/12 ,  D21H13/14 ,  D21H15/06 ,  D21H17/25 ,  D21H17/28

Abstract: A layered fibrous structure having a first layer including a co-formed fibrous structure containing a plurality of first filaments and a plurality of solid additives and a second layer different from the first layer, wherein the second layer includes a plurality of second filaments is provided.

公开(公告)号：US11453961B2

公开(公告)日：2022-09-27

申请号：US16481168

申请日：2018-02-15

Applicant: Spinnova Oy

Inventor： Johanna Liukkonen ,  Sanna Haavisto ,  Pasi Selenius ,  Juha Salmela ,  Janne Poranen ,  Arto Salminen ,  Marko Myllys ,  Pia Vento ,  Karri Björklund

IPC: B23K26/00 ,  B26D3/16 ,  B26F3/08 ,  B26F3/16 ,  B28B1/26 ,  D01D5/253 ,  D01G15/00 ,  D01G15/02 ,  F26B3/04 ,  F26B3/06 ,  F26B3/08 ,  F26B3/22 ,  F26B3/24 ,  F26B13/14 ,  F26B13/16 ,  F26B13/18 ,  D01G1/04 ,  D01F2/00 ,  D01D5/04 ,  D01F4/02 ,  D01D5/26 ,  D01D10/02 ,  D01F1/10 ,  D01F4/00 ,  D01D7/00 ,  D01H1/00 ,  B23K26/08 ,  B26D7/08 ,  B29C69/00 ,  A61L24/10 ,  D02G3/02 ,  D21H17/25 ,  D21H21/28 ,  A61L15/32 ,  B26D7/01

Abstract: The application relates to a method and apparatus for manufacturing a natural fiber based staple fibers. The application further relates to the staple fibers, staple fiber based raw wool and products comprising such. A method comprises providing a cellulose suspension (101, 310, 510) including water, refined cellulose fibrils and at least one rheology modifier, directing the cellulose suspension through a nozzle (102, 320, 520) onto a surface (300, 400, 500), drying the cellulose suspension onto the surface (103, 300, 400, 500) for forming a fiber (350, 550), and cutting the cellulose suspension on the surface for forming staple fibers (105).

公开(公告)号：US11193005B2

公开(公告)日：2021-12-07

申请号：US16461293

申请日：2017-11-14

Applicant: NUTRITION & BIOSCIENCES USA 4, INC.

Inventor： Natnael Behabtu

IPC: C08L1/02 ,  D21H17/53 ,  D21H17/25 ,  D21H23/04 ,  C08L5/00

Abstract: Disclosed herein are cellulose/polysaccharide composites comprising a) cellulose; and b) an enzymatically-produced polysaccharide, certain derivatives of an enzymatically-produced polysaccharide, or a mixture thereof; wherein the enzymatically-produced polysaccharide and the polysaccharide derivative are water-insoluble. The cellulose is plant-derived. The composites are useful in forming articles such as paper, packaging material, or insulating material.

公开(公告)号：US20210301471A1

公开(公告)日：2021-09-30

申请号：US17346532

申请日：2021-06-14

Applicant: Shaun Moshasha ,  Cutter Grathwohl

Inventor： Shaun Moshasha ,  Cutter Grathwohl

IPC: D21H17/25 ,  D21H19/52 ,  D21H21/10 ,  D21H21/18 ,  D21H17/15

Abstract: Application of KBC as a unique form of and source of nano-crystalline cellulose having viability for use in place of or in conjunction with alternative fiber additives, such as for paper products and reinforced paper composites.

公开(公告)号：US20210221920A1

公开(公告)日：2021-07-22

申请号：US17224459

申请日：2021-04-07

Applicant: FiberLean Technologies Limited

Inventor： Mark Windebank ,  David Skuse ,  Madeleine Adams ,  Guillaume Tellier

IPC: C08B16/00 ,  D21H17/25 ,  D21H17/69 ,  D21H19/10 ,  D21H19/38 ,  D21C9/00 ,  D21C9/18 ,  D21F3/00 ,  D21H11/18

Abstract: Methods of improving the re-dispersibility of dried or at least partially dried microfibrillated cellulose, methods of re-dispersing dried or at least partially dried microfibrillated cellulose, compositions comprising re-dispersed microfibrillated cellulose and the use of re-dispersed microfibrillated cellulose in an article, product or composition; and methods of improving the physical and/or mechanical properties of re-dispersed dried or partially dried microfibrillated cellulose.

公开(公告)号：US10894890B2

公开(公告)日：2021-01-19

申请号：US16371891

申请日：2019-04-01

Applicant: CELLUCOMP LIMITED

Inventor： David Hepworth ,  Eric Whale

IPC: C09D7/00 ,  C09D7/65 ,  A23L29/262 ,  A23L33/24 ,  C08H8/00 ,  C08L1/02 ,  C08L97/02 ,  C04B24/38 ,  C04B28/02 ,  C04B18/24 ,  C09D5/02 ,  C09D101/02 ,  C09D197/02 ,  D21H17/02 ,  D21H17/24 ,  D21H17/25 ,  D21H21/14 ,  A61K8/73 ,  A61Q19/00 ,  A61K8/02 ,  C09D7/43 ,  A61K8/9789 ,  C08B15/00

Abstract: The invention relates to plant-derived cellulose-containing particles useful as strengthening agents in water based systems and to a process for preparing cellulose-containing particles from plant material, which process involves treating said plant material with a peroxide reagent. The process can be controlled to produce cellulose-containing particle having a viscosity up to about 2500 cps.

公开(公告)号：US10808044B2

公开(公告)日：2020-10-20

申请号：US16195393

申请日：2018-11-19

Applicant: CELLUCOMP LIMITED

Inventor： David Hepworth ,  Eric Whale

IPC: C08B15/00 ,  A23L29/262 ,  A23L33/24 ,  C08H8/00 ,  C08L1/02 ,  C08L97/02 ,  C04B24/38 ,  C04B28/02 ,  C04B18/24 ,  C09D5/02 ,  C09D101/02 ,  C09D197/02 ,  D21H17/02 ,  D21H17/24 ,  D21H17/25 ,  D21H21/14 ,  A61K8/73 ,  A61Q19/00 ,  A61K8/97 ,  A61K8/02 ,  C09D7/43

Abstract: The invention relates to plant-derived cellulose-containing particles useful as rheology modifiers and to a process for preparing cellulose-containing particles from plant material, which process involves treating said plant material with a peroxide reagent. The process can be controlled to produce cellulose-containing particle having a viscosity up to about 7500 or 8000 cps.

公开(公告)号：US10570261B2

公开(公告)日：2020-02-25

申请号：US15637048

申请日：2017-06-29

Applicant: Mercer International Inc.

Inventor： Tobias Ziegenbein

IPC: D21H11/18 ,  D21H21/52 ,  D21H23/76 ,  D21H27/00 ,  D21H27/30 ,  C08J5/18 ,  C08L1/06 ,  D21H11/04 ,  D21H11/20 ,  D21H13/02 ,  D21H17/25 ,  D21H21/20 ,  D21H11/00 ,  D21H15/06 ,  D21H27/34 ,  D21H21/18 ,  B23B5/26 ,  D21C9/00 ,  A47K10/16 ,  B32B23/10 ,  B82Y40/00 ,  B82Y99/00

Abstract: A process for making absorbent towel paper webs is provided. The process comprises the steps of (a) providing a papermaking furnish having from about 45% to about 90% by weight of the dry fiber basis of the tissue towel paper web of a refined softwood pulp fiber mixture having from about 20.0% to about 88.5% by weight of softwood pulp fiber and from about 0.05% to about 5.0% by weight of strengthening additive and from about 10% to about 55% by weight of the dry fiber basis of the absorbent towel paper web of a hardwood pulp fiber mixture having from about 9.9% to about 54.9% by weight of hardwood pulp fibers and from about 0.05% to about 20.0% by weight cellulose nanofilaments; (b) forming a wet fibrous web from the paper making furnish; and, (c) drying the web until the web contains not more than about 10% by weight moisture.

公开(公告)号：US10563356B2

公开(公告)日：2020-02-18

申请号：US15884520

申请日：2018-01-31

Applicant: DOMTAR PAPER COMPANY, LLC

Inventor： Bruno Marcoccia ,  Harshad Pande ,  Robert M. Williams

IPC: D21H11/02 ,  D21H19/54 ,  D21H11/16 ,  D21H15/02 ,  D21H17/25 ,  D21H17/28 ,  D21H17/00 ,  D21H21/28 ,  D21H21/52

Abstract: The present invention relates to a method of making a paper product having Improved printing characteristics. This is achieved by forming a fibrous substrate, and applying a surface treatment which comprises an aqueous composition. Notably, the aqueous composition includes surface enhanced pulp fibers, with the placement of the surface enhanced pulp fibers optimizing their functionality, with surface placement by use of a paper machine size press desirably facilitating a reduction in the typical starch usage. The present method comprising the steps of providing a aqueous slurry comprising a blend of cellulosic fibers and water and dewatering the aqueous slurry of cellulosic fibers and water to form a fibrous substrate. The present method further includes applying a surface treatment to the fibrous substrate, wherein the surface treatment comprises an aqueous composition including surface enhanced pulp fibers, to form a treated fibrous substrate, and thereafter drying the treated fibrous substrate to form a paper product having enhanced printing characteristics.