公开(公告)号：US12173452B2

公开(公告)日：2024-12-24

申请号：US17917684

申请日：2021-04-15

Applicant: Dow Global Technologies LLC

Inventor： Alan M. Piwowar ,  Ray E. Drumright ,  Christina N. Ellison ,  David L. Malotky ,  Jonathan F. Mason ,  Hari Katepalli ,  Luqing Qi ,  Houxiang Tang ,  Robert R. Bills

IPC: D21H17/37 ,  D21H19/20 ,  D21H21/02 ,  D21H21/16

Abstract: The present invention relates to an article and a method for its preparation; the article comprises a cured polymeric film superposing paper or paperboard. The polymeric film is derived from a dispersion which comprises: a) a dispersant which is a copolymer with an acid value of 130 or less, comprising structural units of ethylene and a carboxylic acid monomer, wherein the copolymer has a melt flow index in the range of from 50 to 2000 g/10 min at 190° C./2.16 kg; wherein the weight-to-weight ratio of structural units of ethylene to carboxylic acid monomer is in the range of from 95:5 to 70:30; and wherein the dispersant has a concentration in the range of from 9 to 50 weight percent based on the weight of polymer solids in the dispersion; b) a base polymer comprising non-functionalized ethylene-co-alkene copolymers, wherein the weight-to-weight ratio of the structural units of ethylene to alkene is in the range of from 99.8:0.2 to 50:50; and c) a neutralizing agent which is a hard base and excludes an organic base having a boiling point of less than 250° C.; wherein the concentration of the neutralizing agent is sufficient to neutralize at least half of the carboxylic acid groups associated with the dispersion composition. The article of the present invention is useful as a barrier to a wide range of hydrophobic and hydrophilic materials.

公开(公告)号：US20240376672A1

公开(公告)日：2024-11-14

申请号：US18286529

申请日：2022-04-13

Applicant: SNF GROUP

Inventor： Cyril BARRIERE ,  Gatien FAUCHER ,  Bastien MARTEL

IPC: D21H21/10 ,  C08F8/06 ,  C08F8/28 ,  D21H17/37 ,  D21H21/18 ,  D21H23/04

Abstract: A method for producing a sheet of paper or cardboard from a fibrous suspension, includes injection of a polymer P2 into a fibrous suspension, forming of a sheet of paper or cardboard, and drying the sheet of paper or cardboard. The polymer P2 is prepared, before injection of the polymer P2, from a water-soluble polymer P1 in the form of solid particles. Polymer P1 consists of at least one nonionic monomer selected from acrylamide, methacrylamide, N,N-dimethylacrylamide, and acrylonitrile. Polymer P1 is subjected to a reaction Re to yield polymer P2. The reaction Re includes the addition and the dissolution of solid particles of polymer P1 in an aqueous solution M1 of an alkali hydroxide and/or an alkaline earth hydroxide, and an alkali hypohalide and/or an alkaline earth hypohalide, prior to a reaction time of 10 seconds to 5 hours.

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：US12012352B2

公开(公告)日：2024-06-18

申请号：US15517205

申请日：2015-10-06

Applicant: Ahlstrom Oyj

Inventor： Emmanuel Faynot ,  Marc Berlioz ,  Samuel Merlet ,  Claude Leclercq

IPC: C03C13/00 ,  B32B5/02 ,  B32B5/08 ,  B32B5/22 ,  B32B5/24 ,  B32B5/26 ,  B32B7/12 ,  B32B13/00 ,  B32B13/14 ,  C03C13/06 ,  C04B28/14 ,  D04H1/00 ,  D04H1/587 ,  D04H13/00 ,  D21H11/00 ,  D21H11/12 ,  D21H13/00 ,  D21H13/14 ,  D21H13/24 ,  D21H13/26 ,  D21H17/33 ,  D21H17/37 ,  E04C2/04 ,  C03C25/1025 ,  C03C25/28 ,  C04B111/00

CPC classification number: C03C13/00 ,  B32B5/022 ,  B32B5/08 ,  B32B5/22 ,  B32B5/24 ,  B32B5/26 ,  B32B7/12 ,  B32B13/00 ,  B32B13/14 ,  C03C13/06 ,  C04B28/14 ,  D04H1/00 ,  D04H1/587 ,  D04H13/00 ,  D21H11/00 ,  D21H11/12 ,  D21H13/00 ,  D21H13/14 ,  D21H13/24 ,  D21H13/26 ,  D21H17/33 ,  D21H17/37 ,  E04C2/04 ,  E04C2/043 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/0253 ,  B32B2262/0261 ,  B32B2262/0269 ,  B32B2262/0276 ,  B32B2262/04 ,  B32B2262/06 ,  B32B2262/062 ,  B32B2262/065 ,  B32B2262/067 ,  B32B2262/10 ,  B32B2262/101 ,  B32B2262/14 ,  B32B2307/538 ,  B32B2307/546 ,  B32B2307/718 ,  B32B2419/00 ,  C03C25/103 ,  C03C25/28 ,  C04B2111/0062 ,  C04B2111/00629

Abstract: The invention relates to a fibrous mat facer for preparing a gypsum board, to a gypsum board comprising said mat facer and to a system comprising said gypsum board. The fibrous mat comprises at least one ply of a non-woven fabric, and a binder composition, wherein the binder composition represents from 10 to 40 wt % of the total weight of the mat. The binder composition comprises a copolymer comprising a co-monomer unit of a vinyl ester of an alpha branched aliphatic monocarboxylic acid, said copolymer being present in an amount from 25 to 100 wt % of the binder composition weight.

公开(公告)号：US20240158987A1

公开(公告)日：2024-05-16

申请号：US18548753

申请日：2022-03-02

Applicant: SCHOELLER TECHNOCELL GMBH & CO., KG

Inventor： Martina WICHER ,  Michael JOCHER ,  Knut HORNIG ,  Sebastian SCHOLZ ,  Martin GOEPPERT

IPC: D06P5/28 ,  B41M5/025 ,  D06P1/52 ,  D06P3/52 ,  D21H17/37 ,  D21H17/44 ,  D21H17/56 ,  D21H19/38 ,  D21H19/60 ,  D21H19/82

CPC classification number: D06P5/004 ,  B41M5/0256 ,  D06P1/5228 ,  D21H17/37 ,  D21H17/44 ,  D21H17/56 ,  D21H19/385 ,  D21H19/60 ,  D21H19/822 ,  B41M2205/02 ,  D06P3/52

Abstract: The invention relates to a transfer material for dye sublimation processes, comprising a base paper, which is coated on one side with a color-receiving layer, wherein the base paper contains at least 1.5% by weight, based on the mass of the pulp, of a polymer dispersion selected from the group consisting of polyacrylates, polyesters, polyolefins or mixtures thereof. The invention further relates to a process for producing a transfer material according to the invention, comprising the steps of: (a) producing a base paper on a paper machine, wherein at least 1.5% by weight, based on the mass of the pulp, of a polymer dispersion selected from the group consisting of polyacrylates, polyesters, polyolefins or mixtures thereof are added to the pulp suspension during production of the base paper; (b) drying and smoothing the base paper; (c) applying the color-receiving layer to a surface of the base paper; and (d) drying the transfer material obtained in step (c). The invention further relates to a process for transferring an image onto a receiving material by sublimation, wherein a transfer material according to the invention is printed with an image by way of the inkjet printing process, and the image is transferred onto a receiving material by sublimation.

公开(公告)号：US11965291B2

公开(公告)日：2024-04-23

申请号：US17836077

申请日：2022-06-09

Applicant: MONDI AG

Inventor： Elisabeth Schwaiger ,  Johannes Rosenwirth

IPC: D21H27/10 ,  D21G1/02 ,  D21H11/04 ,  D21H17/17 ,  D21H17/19 ,  D21H17/29 ,  D21H17/37 ,  D21H17/66 ,  D21H17/68 ,  D21H19/40 ,  D21H19/58 ,  D21H19/84 ,  D21H21/16 ,  D21H21/18 ,  D21H27/02

CPC classification number: D21H27/10 ,  D21G1/0233 ,  D21H11/04 ,  D21H17/17 ,  D21H17/19 ,  D21H17/29 ,  D21H17/375 ,  D21H17/66 ,  D21H17/68 ,  D21H19/40 ,  D21H19/58 ,  D21H19/84 ,  D21H21/16 ,  D21H21/18 ,  D21H27/02

Abstract: Packaging paper consisting of an unbleached kraft paper with a kappa value according to ISO 302:2015 between 38 and 60, preferably between 40 and 58 as base paper, which is optionally coated on at least one side, wherein the kraft paper is made of at least 90% primary pulp, has a basis weight according to ISO 536:2019 between 60 g/m2 and 150 g/m2 and an air resistance according to ISO 5636-5:2013 (Gurley) between 5 and 30 seconds, wherein the base paper has an elongation at break in the machine direction according to ISO 1924-3:2005 between 2.5% and 8.5% and has a Bendtsen roughness according to ISO 8791-2:2013 between 70 ml/min and 600 ml/min, preferably between 150 ml/min to 550 ml/min, more preferably 200 ml/min to 500 ml/min, and process for its production.

公开(公告)号：US20240110337A1

公开(公告)日：2024-04-04

申请号：US18274678

申请日：2022-02-02

Applicant: Billerud Aktiebolag (publ)

Inventor： Eero Antero Valtanen

IPC: D21H17/37 ,  D21H17/62 ,  D21H17/68 ,  D21H21/16

CPC classification number: D21H17/375 ,  D21H17/62 ,  D21H17/68 ,  D21H21/16

Abstract: There is provided a method of producing a paper on a paper machine, comprising the steps of: a) providing a pulp, such as a mixture of hardwood pulp and softwood pulp; b) adding cationic glyoxylated polyacrylamide (G-PAM) to the pulp; c) forming a web from the pulp in a forming section comprising a head box; d) pressing the web in a press section; e) drying the web in a drying section; and f) optionally calendering the web in a calender.

公开(公告)号：US20240003088A1

公开(公告)日：2024-01-04

申请号：US18265144

申请日：2022-06-02

Applicant: ENVIONEER CO., LTD

Inventor： Jeong Cheol HAN ,  Seong Eun PARK ,  Byeong Joon LEE ,  Ji Soo WON ,  Woong Gi JANG ,  Hye Yeong TAK

IPC: D21H13/38 ,  C04B35/80 ,  D21H13/46 ,  D21H17/37 ,  D21H17/41 ,  D21H17/63

CPC classification number: D21H13/38 ,  C04B35/80 ,  D21H13/46 ,  D21H17/37 ,  D21H17/41 ,  D21H17/63

Abstract: The present invention relates to a ceramic paper and a method for preparing same, and more specifically, to a ceramic paper and a method for preparing same, the ceramic paper being characterized by comprising polycrystalline alumina fibers, a binder, a retention agent, a dispersing agent, and a thickening agent.

公开(公告)号：US11851822B2

公开(公告)日：2023-12-26

申请号：US17169842

申请日：2021-02-08

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuuki Yamamoto ,  Michio Matsuda ,  Tetsuya Uehara ,  Hirotoshi Sakashita

IPC: D21H21/18 ,  C09D7/65 ,  C08F220/18 ,  C08F220/36 ,  C09D5/00 ,  C09D103/02 ,  D21H17/28 ,  D21H17/37 ,  D21H19/12 ,  D21H27/10

CPC classification number: D21H21/18 ,  C08F220/1812 ,  C08F220/1818 ,  C08F220/36 ,  C09D5/00 ,  C09D7/65 ,  C09D103/02 ,  D21H17/28 ,  D21H17/37 ,  D21H19/12 ,  D21H27/10 ,  C08F2800/20

Abstract: An oil-resistant agent for paper, which contains a non-fluorine copolymer that has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group with 7-40 carbon atoms and a repeating unit formed from (b) an acrylic monomer having a hydrophilic group. The oil-resistant agent for paper also contains a liquid medium that is composed of water and/or an organic solvent, preferably of water or a mixture (aqueous medium) of water and an organic solvent. The non-fluorine copolymer preferably has a repeating unit formed from (c) a monomer having an ion donor group in addition to the repeating units formed from the monomers (a) and (b). Also disclosed is an oil-resistant paper having an oil-resistant layer including the oil-resistant agent for paper, and starch or modified starch, on a surface of the paper as well as a method of treating paper.

公开(公告)号：US11795620B2

公开(公告)日：2023-10-24

申请号：US17976051

申请日：2022-10-28

Applicant: ARAKAWA CHEMICAL INDUSTRIES, LTD.

Inventor： Ryusuke Kambara ,  Daisuke Fujioka ,  Shogo Nishiura

IPC: D21H21/18 ,  D21H17/37

CPC classification number: D21H17/375 ,  D21H21/18 ,  D10B2401/063

Abstract: A method for manufacturing a powdery paper-strengthening agent including a branched (meth)acrylamide-based polymer (A) which includes a step of obtaining (A) component by polymerizing (meth)acrylamide (a1), anionic vinyl monomer (a2), cationic vinyl monomer (a3) and crosslinkable vinyl monomer (a4) in a solvent in a presence of a polymerization initiator, a step of dropping or putting the above (A) component into an organic solvent to form a precipitate, and a step of drying and pulverizing (A) component obtained as the precipitate.