公开(公告)号：US20240360626A1

公开(公告)日：2024-10-31

申请号：US18645496

申请日：2024-04-25

Applicant: SOLENIS TECHNOLOGIES, L.P.

Inventor： Ashley Hawkins Lewis ,  Rachael J. Ross ,  Stephen Vinciguerra

IPC: D21H17/09 ,  D21H17/00 ,  D21H17/28 ,  D21H17/53 ,  D21H21/18 ,  D21H21/24 ,  D21H21/56

CPC classification number: D21H17/09 ,  D21H17/28 ,  D21H17/53 ,  D21H17/72 ,  D21H21/18 ,  D21H21/24 ,  D21H21/56

Abstract: Foam formulations and methods for manufacturing paper products using foam formulations are provided. An exemplary method includes producing a foam of a gas, water, a dry strength agent, and a combination of foaming agents including an anionic sulfated/sulfonated surfactant and a polysorbate-type nonionic surfactant; applying the foam to a web; and processing the web to form the product.

公开(公告)号：US12098508B2

公开(公告)日：2024-09-24

申请号：US17346532

申请日：2021-06-14

Applicant: Shaun Moshasha ,  Cutter Grathwohl ,  James Mahoney

Inventor： Shaun Moshasha ,  Cutter Grathwohl ,  James Mahoney

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

CPC classification number: D21H17/25 ,  D21H17/15 ,  D21H19/52 ,  D21H21/10 ,  D21H21/18

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：US20240262802A1

公开(公告)日：2024-08-08

申请号：US18443810

申请日：2024-02-16

Applicant: Ecolab USA Inc.

Inventor： Heqing HUANG ,  David JORDAN ,  Robert M. LOWE ,  Jeffrey CRAMM ,  Weiguo CHENG ,  Mingli WEI

IPC: C07D307/04 ,  C07C219/08 ,  C07C305/04 ,  C08F220/28 ,  C08F220/56 ,  C08G65/00 ,  C08K5/3435 ,  C08L55/00 ,  D21H17/37 ,  D21H21/18 ,  D21H21/20 ,  D21H21/24

CPC classification number: C07D307/04 ,  C07C219/08 ,  C07C305/04 ,  C08F220/56 ,  C08G65/002 ,  C08K5/3435 ,  C08L55/005 ,  D21H17/37 ,  D21H17/375 ,  D21H21/18 ,  D21H21/20 ,  D21H21/24 ,  C08F220/285

Abstract: The disclosure provides an associative polymer, a powder, a process for forming a paper sheet, and a process for making a powder. One or more associative polymers and one or more optional surfactants may be networked to form a wet gel and a powder may be formed from the wet gel. The associative polymer may have a weight average molecular weight of from about 10 kDa to about 2,000 kDa. A method may involve adding the powder to a cellulose fiber slurry, draining the cellulose fiber slurry to form a fiber pad, and drying the fiber pad to form a paper sheet.

公开(公告)号：US12053964B2

公开(公告)日：2024-08-06

申请号：US17256060

申请日：2019-06-25

Applicant: Stora Enso OYJ

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

IPC: B32B29/00 ,  B32B7/12 ,  B32B29/08 ,  B65D65/40 ,  D21H11/02 ,  D21H11/10 ,  D21H11/18 ,  D21H17/00 ,  D21H17/28 ,  D21H17/45 ,  D21H17/68 ,  D21H21/18 ,  D21H27/10 ,  D21H27/40

CPC classification number: B32B29/005 ,  B32B7/12 ,  B32B29/08 ,  B65D65/403 ,  D21H11/02 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/45 ,  D21H17/68 ,  D21H17/74 ,  D21H21/18 ,  D21H27/10 ,  D21H27/40 ,  B32B2250/03 ,  B32B2250/26 ,  B32B2307/546 ,  B32B2307/718 ,  B32B2307/72 ,  B32B2553/00

Abstract: The invention relates to a ply of a linerboard for corrugated board, which ply exhibits high strength properties and which enables the production of lightweight linerboards. The ply of the invention comprises 20-80 wt % CTMP from wood fibers and 80-20 wt % chemical pulp, calculated on the total fiber weight of said ply and strength additives chosen from the group of microfibrillated cellulose (MFC), anionic or cationic polymers and starch or combinations thereof. The ply exhibits a geometric SCT index of above 22 Nm/g and a density of below 680 kg/m3, preferably of below 650 kg/m3.

公开(公告)号：US12043676B2

公开(公告)日：2024-07-23

申请号：US17043030

申请日：2019-03-29

Applicant: S.P.C.M. SA

Inventor： René Hund ,  Cyril Barriere ,  Rémi Olivier

IPC: C08F2/16 ,  C08F8/28 ,  C08F220/56 ,  C08F220/58 ,  C08K5/07 ,  D21H17/43 ,  D21H21/18

CPC classification number: C08F2/16 ,  C08F8/28 ,  C08F220/56 ,  C08K5/07 ,  D21H17/43 ,  D21H21/18 ,  C08F220/585 ,  C08F220/56 ,  C08F220/585 ,  C08F8/28 ,  C08F220/56 ,  C08F220/585

Abstract: The invention relates to a method for producing anionic polymers that are hydrosoluble in an aqueous solution, comprising at least the following successive steps: b) polymerisation, in an aqueous solution, of anionic monomers containing at least 5 mol % of 2-acrylamido-2-methylpropane sulfonic acid and/or one of the salts thereof and optionally non-ionic monomers up to a mass concentration of polymer A of between 5 and 40%, b) addition of at least one aldehyde into the solution produced in step a), and c) acidification to a pH of between 3 and 4 of the solution produced in step b). The invention also relates to the use thereof in a paper-making method.

公开(公告)号：US20240240408A1

公开(公告)日：2024-07-18

申请号：US18559421

申请日：2022-05-13

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Jukka Kankkunen

IPC: D21H27/40 ,  B32B29/00 ,  B32B29/08 ,  D21F11/04 ,  D21H11/04 ,  D21H11/06 ,  D21H21/16 ,  D21H21/18 ,  D21H27/10 ,  D21H27/38

CPC classification number: D21H27/40 ,  B32B29/005 ,  B32B29/08 ,  D21F11/04 ,  D21H11/04 ,  D21H11/06 ,  D21H21/16 ,  D21H21/18 ,  D21H27/10 ,  D21H27/38 ,  B32B2250/03 ,  B32B2250/26 ,  B32B2553/00

Abstract: The present invention relates to a multiply containerboard for use in corrugated board, said multiply containerboard comprising: a first outer ply, a second outer ply, and at least one intermediate ply sandwiched between the first and second outer ply, wherein said first and second outer ply comprise at least 70 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said intermediate ply comprises at least 30 wt % unbleached kraft pulp based on dry weight and at least one cellulose based strength enhancement agent, and wherein said intermediate ply comprises less than 30 wt % NSSC pulp based on dry weight.

公开(公告)号：US20240240406A1

公开(公告)日：2024-07-18

申请号：US18559422

申请日：2022-05-13

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Jukka Kankkunen

IPC: D21H27/10 ,  D21H11/04 ,  D21H11/06 ,  D21H17/25 ,  D21H17/28 ,  D21H21/10 ,  D21H21/16 ,  D21H21/18 ,  D21H27/40

CPC classification number: D21H27/10 ,  D21H11/04 ,  D21H11/06 ,  D21H17/25 ,  D21H17/28 ,  D21H21/10 ,  D21H21/16 ,  D21H21/18 ,  D21H27/40

Abstract: The present invention relates to a multiply containerboard for use in corrugated board, said multiply containerboard comprising: a first outer ply comprising a strength enhancement agent, a second outer ply comprising a strength enhancement agent, and an interfacial layer joining said first and second outer ply, wherein each of said first and second outer ply comprise at least 50 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said interfacial layer comprises a strength enhancement agent in an amount of 0.5-20 gsm wherein the amount of strength enhancement agent in the interfacial layer is higher, preferably at least twice as high as the concentration of the strength enhancement agent in each of the first and second outer ply.

公开(公告)号：US12006635B2

公开(公告)日：2024-06-11

申请号：US17672940

申请日：2022-02-16

Applicant: STRUCTURED I, LLC

Inventor： James E. Sealey ,  Byrd Tyler Miller, IV ,  Phillip MacDonald ,  Taras Z. Andrukh ,  Justin S. Pence

IPC: D21H27/00 ,  D21H17/02 ,  D21H17/35 ,  D21H21/18 ,  D21H21/20 ,  D21H21/22 ,  D21H21/24 ,  D21H27/32 ,  D21H27/40

CPC classification number: D21H27/005 ,  D21H17/02 ,  D21H17/35 ,  D21H21/18 ,  D21H21/20 ,  D21H21/22 ,  D21H21/24 ,  D21H27/002 ,  D21H27/32 ,  D21H27/40

Abstract: A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

公开(公告)号：US11987675B2

公开(公告)日：2024-05-21

申请号：US16955534

申请日：2018-12-18

Applicant: OJI HOLDINGS CORPORATION

Inventor： Koh Sakai ,  Hayato Fushimi

IPC: D21H11/20 ,  C08J5/06 ,  C08J5/18 ,  C08K3/24 ,  C08K5/092 ,  D21H17/65 ,  D21H21/18

CPC classification number: C08J5/18 ,  C08J5/06 ,  C08K3/24 ,  C08K5/092 ,  D21H11/20 ,  D21H17/65 ,  D21H21/18 ,  C08J2329/04 ,  C08J2371/02

Abstract: It is an object of the present invention to provide an ultrafine cellulose fiber-containing sheet that is excellent in terms of weather resistance. The present invention relates to a sheet comprising cellulose fibers having a fiber width of 1000 nm or less, wherein the cellulose fibers have anionic functional groups, and the YI increase percentage calculated according to the following equation is 1500% or less.

YI increase percentage (%)=(yellowness of the sheet after heating−yellowness of the sheet before heating)/yellowness of the sheet before heating×100, wherein

the yellowness of the sheet after heating is a yellowness measured in accordance with JIS K 7373, after the sheet is subjected to hot pressing at 180° C. at 0.5 MPa for 1 minute, whereas the yellowness of the sheet before heating is a yellowness measured in accordance with JIS K 7373, before the sheet is subjected to the hot pressing.

公开(公告)号：US11976420B2

公开(公告)日：2024-05-07

申请号：US17417093

申请日：2019-12-18

Applicant: BILLERUD AKTIEBOLAG (PUBL)

Inventor： Lars Wahlstrom ,  Paul Turner

IPC: D21H13/24 ,  D21H11/04 ,  D21H17/28 ,  D21H17/33 ,  D21H19/22 ,  D21H21/18 ,  D21H27/10

CPC classification number: D21H13/24 ,  D21H11/04 ,  D21H17/28 ,  D21H17/33 ,  D21H19/22 ,  D21H21/18 ,  D21H27/10

Abstract: There is provided a paper for packaging of medical devices comprising 5-25 wt. % (dry) synthetic fibres comprising polyester and 2.0-12.0 wt. % (dry) of a latex binder or 1.0-5.0 wt. % (dry) of a starch binder, wherein the length of the synthetic fibres is 8-14 mm and the thickness of the synthetic fibres is 5.5-9.0 dtex and wherein the paper has a grammage according to ISO 536:2012 of 70-110 g/m2.