Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 8145. Отображено 100.
19-01-2012 дата публикации

Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability

Номер: US20120012265A1
Автор: D. W. Anderson, Kapil Mohan Singh, Krishna K. Mohan, Peter M. Froass, Thomas R. Arnson, Yan C. Huang, Yaoliang Hong
Принадлежит: International Paper Co

This invention relates to a paper substrate containing high surface sizing and low internal sizing and having high dimensional stability, as well as methods of making and using the composition.

Подробнее
Номер записи: 1
23-02-2012 дата публикации

Method for producing modified cellulose

Номер: US20120043039A1
Автор: Jan-Erik Teirfolk, Janne Laine, Jouni Paltakari, Monika Osterberg, Ramjee Subramanian
Принадлежит: UPM Kymmene Oy

The present invention provides a method for producing modified nanofibrillated cellulose characterized by bringing cellulosic material into a fiber suspension, adsorbing a cellulose derivative or polysaccharide or polysaccharide derivative onto fibers in said fiber suspension under special conditions and subjecting the obtained fiber suspension derivative to mechanical disintegration. A modified nanofibrillated cellulose obtainable by a method of the present invention is provided. Furthermore, the invention relates to the use of said modified nanotibrillated cellulose.

Подробнее
Номер записи: 2
10-05-2012 дата публикации

Citrus paper application sheet for applying to freshly exposed or cut surfaces of fruit to prevent browning

Номер: US20120114811A1
Автор: Kathleen Abigail Lappe
Принадлежит: Individual

A citrus paper application sheet treated with natural preservatives for application to exposed or cut surfaces of fruit to prevent oxidation and browning. The sheet is designed to adhere and conform to the shape of the exposed portion of the fruit once dampened and dry retaining the conformed shape. The sheet is further designed to enable it to be dispensed in selected lengths and widths or particular dimensions depending upon the fruit application further enabling the sheets to be moistened and sculpted to a desirable shape to conform to that of the exposed fruit.

Подробнее
Номер записи: 3
24-05-2012 дата публикации

Product for the sizing of paper

Номер: US20120125553A1
Автор: Elisabeth Lackinger, Jürger Sartori, Klaus Möller, Leo Schmid
Принадлежит: KEMIRA OYJ

The present invention relates to a paper sizing agent and emulsion comprising a maleated vegetable oil size wherein at least 50% by weight of the total fatty acids of the triglycerides are monounsaturated. The invention also relates to a process for the preparation of such maleated vegetable oil size.

Подробнее
Номер записи: 4
14-06-2012 дата публикации

Novel protein having b-glucosidase activity and uses thereof

Номер: US20120148706A1
Автор: Fumikazu Yokoyama, Kengo Yokoyama, Nobuko MAZUKA
Принадлежит: Meiji Seika Pharma Co Ltd

By combination of hydrophobic chromatography and strongly basic anion-exchange chromatography, a novel, highly hydrophobic β-glucosidase was successfully identified from Acremonium cellulolyticus . Further, a gene corresponding to the identified β-glucosidase was isolated. When multiple modifications were introduced into the base sequence of the gene, the gene was successfully expressed in Trichoderma viride at a high level, and the expression product successfully exhibited a high β-glucosidase activity.

Подробнее
Номер записи: 5
26-07-2012 дата публикации

Process for the production of paper

Номер: US20120186765A1
Автор: Fredrik Solhage, Johan Nyander
Принадлежит: Akzo Nobel NV

The present invention relates to a drainage and retention aid composition which comprises: (d) a first anionic component which is a water-soluble anionic organic polymer; (e) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (f) a third anionic component which is an anionic siliceous material; wherein the first, second and third anionic components are present in a dry matter content of from 0.01 to 50% by weight.

Подробнее
Номер записи: 6
08-11-2012 дата публикации

Water stable compositions and articles comprising starch and methods of making the same

Номер: US20120279421A1
Автор: Isao Noda, James T. Knapmeyer, Michael M. Satkowski, William M. Allen, Jr.
Принадлежит: Individual

Thermoplastic polymer compositions comprising starch and articles made therefrom are water stable or may be rendered so. One method of making water stable thermoplastic compositions comprises the steps of mixing destructured starch with polyhydric alcohol and acid, and forming an ester condensation reaction product from at least a portion of the polyhydric alcohol and acid. In some embodiments, a pre-polymer formed from the ester condensation reaction may be provided as a pre-polymer that is mixed with the starch.

Подробнее
Номер записи: 7
06-06-2013 дата публикации

Method And System For Producing Market Pulp And Products Thereof

Номер: US20130139980A1
Автор: Ban Weiping, Elsey Michael R., Hoekstra Philip M.
Принадлежит: BUCKMAN LABORATORIES INTERNATIONAL, INC.

Methods and systems are provided for producing market pulp which include treatment of pulp with diverse ionic compounds before pulp drying. Cationically and anionically charged compounds can be used to treat pulp before pulp drying to improve pulp dewatering performance and efficiency in the production of market pulp. Market pulp products containing the treatment compounds are also described. 1. A method for producing market pulp , comprising:forming cellulosic particulates into pulp;adding at least one cationically charged compound and at least one anionically charged compound to said pulp to provide treated pulp;mechanically dewatering said treated pulp to provide mechanically dewatered pulp; andthermally drying said mechanically dewatered pulp to form market pulp.2. The method of claim 1 , wherein at least part of said adding of said cationically charged compound to said pulp occurs prior to said adding of said anionically charged compound to said pulp.3. The method of claim 1 , wherein about 80% to 100% of said adding of said cationically charged compound to said pulp occurs prior to said adding of said anionically charged compound to said pulp.4. The method of claim 1 , wherein the cationically charged compound is an inorganic cationically charged compound claim 1 , and the anionically charged compound is an inorganic anionically charged compound.5. The method of claim 1 , wherein the cationically charged compound is a cationic polymer claim 1 , and the anionically charged compound is an anionic polymer.6. The method of claim 1 , further comprising bleaching the pulp after the pulp forming and before the adding of the cationically and anionically charged compounds to said pulp.7. A method for producing market pulp claim 1 , comprising:forming cellulosic particulates into pulp;adding at least one cationic polymer and at least one anionic polymer to said pulp to provide treated pulp effective to form a polyelectrolyte complex in said treated pulp;mechanically ...

Подробнее
Номер записи: 8
06-06-2013 дата публикации

FIBROUS WEB AND PROCESS FOR THE PREPARATION THEREOF

Номер: US20130139987A1
Автор: LESKELA Markku, MEURONEN Jari, SILENIUS Petri
Принадлежит:

The invention relates to a fiber web and a method for preparing it. The fiber web comprises a filler-containing base web, which is possibly coated with a pigment-containing coating layer. According to the invention, 5-100% of the filler in the base web is made up of cellulose fibrils or lignocellulose fibrils with light-scattering material particles deposited thereon. These coated cellulose fibrils or lignocellulose fibrils constitute at maximum approx. 70% of the weight of the base web. The base web according to the invention contains more than 20% less retention agents than does a web which has the same formation but in which more than 95% of the filler is made up of filler particles known per se. 1. A fiber web comprisinga filler-containing base web optionally coated with a pigment-containing coating layer, characterized in that5-100% of the filler in the base web is made up of cellulose fibrils or lignocellulose fibrils with light-scattering material particles deposited thereon, andthe cellulose fibrils or lignocellulose fibrils with light-scattering material particles deposited thereon constitute 10 to 70% of the weight of the base web, the light-scattering material particles being an inorganic salt compound in an amount of 0.1 to 90% by weight calculated from the amount of the filler, andwherein the base web contains 0 to 0.40% by weight of the mass of the fiber of a conventional retention agent selected from cationic starch and silica at a beta-formation of 10.2. The fiber web according to claim 1 , characterized in that the filler comprises cellulose fibrils or lignocellulose fibrils prepared from vegetable fibers by beating and screening and having an average thickness smaller than 10 μm.3. The fiber web according to claim 2 , characterized in that the light-scattering material particles are deposited on fibrils which correspond to a fraction passing a 50 mesh screen and/or the average thickness of which is 0.01-5 μm and average length 10-1500 μm.4. The ...

Подробнее
Номер записи: 9
18-07-2013 дата публикации

METHOD FOR IMPROVING THE REMOVAL OF WATER

Номер: US20130180679A1
Автор: Kajanto Isko, Laine Janne, Taipale Tero
Принадлежит: UPM-KYMMENE CORPORATION

The invention relates to a method for improving the removal of water in a composition containing microfibrillated cellulose. According to the invention, a cationic polyelectrolyte that has a low molecular weight and a molecular weight of less than 10000 is provided in the composition containing microfibrillated cellulose. 1. A method for improving the removal of water in a composition containing microfibrillated cellulose , wherein a cationic polyelectrolyte that has a low molecular weight and a molecular weight of less than 10000 is provided in the composition containing microfibrillated cellulose.2. The method according to claim 1 , wherein water is removed from the composition containing microfibrillated cellulose using a predetermined water removal technique.3. The method according to claim 1 , wherein the composition is a fiber mixture containing microfibrillated cellulose.4. The method according to claim 1 , wherein a cationic polyelectrolyte is added to the composition containing microfibrillated cellulose.5. The method according to claim 1 , wherein the cationic polyelectrolyte is first added to the fiber composition and microfibrillated cellulose is then added to the composition.6. The method according to claim 1 , wherein the cationic polyelectrolyte is added to the composition containing microfibrillated cellulose claim 1 , which is then added to the fiber composition.7. The method according to claim 1 , wherein a water removal treatment is performed substantially in one step to remove water from the composition containing microfibrillated cellulose.8. The method according to claim 1 , wherein the water removal treatment is performed in at least two steps to remove water from the composition containing microfibrillated cellulose.9. The method according to claim 1 , wherein the employed cationic polyelectrolyte is a mixture that contains at least one cationic polyelectrolyte that has a low molecular weight and a molecular weight of less than 10000.10. The ...

Подробнее
Номер записи: 10
18-07-2013 дата публикации

PAPER OR PAPERBOARD PRODUCT AND A PROCESS FOR PRODUCTION OF A PAPER OR PAPERBOARD PRODUCT

Номер: US20130180680A1
Автор: Axrup Lars, Backfolk Kaj, Heiskanen Isto, Riikonen Mika
Принадлежит: STORA ENSO OYJ

The present invention relates to a paper or paperboard product comprising a furnish wherein said furnish comprises a cationic polymer in an amount of above 1.5% by weight, an anionic polymer and microfibrillated cellulose. The invention further relates to a process for the production of said product. 1. A paper or paperboard product comprising a furnish which comprises a cationic polymer and an anionic polymer wherein the furnish further comprises microfibrillated cellulose , and that the amount of cationic polymer is above 1.5% by total weight percent of the furnish.2. The paper or paperboard product according to wherein the furnish comprises cellulosic fibers.3. The paper or paperboard product according to wherein the furnish comprises 1-30% by weight of rnicrofibrillated cellulose.4. The paper or paperboard product according to wherein the cationic polymer is cationic starch or amphoteric starch.5. The paper or paperboard product according to wherein the anionic polymer is carboxymethyl cellulose (CMC).6. The paper or paperboard product according to wherein the product is a multiply product comprising at least two paper or paperboard plies.7. The paper or paperboard according to wherein the product comprises at least three plies and that the ply located in the middle of the product comprises furnish comprising cationic polymer claim 6 , anionic polymer and microfibrillated cellulose.8. The paper or paperboard according to wherein the product is a multiply board wherein the furnish comprising cationic polymer claim 1 , anionic polymer and MFC forms at least one ply of the product claim 1 , wherein the board has a z-strength of 250-400 kPa and a density of the formed ply of between 300-550 kg/m3.9. A process for producing a paper or paperboard product which process comprises the steps of:providing a furnish comprising fibers,adding more than 1.5% by weight of cationic polymer to the furnish,adding microfibrillated cellulose to the furnish,adding anionic polymer to ...

Подробнее
Номер записи: 11
01-08-2013 дата публикации

Filler composition and method of producing composite materials

Номер: US20130192778A1
Автор: Anthony Jabar, Jr., Mark A. Paradis, Michael A. Bilodeau
Принадлежит: Cerealus Holdings LLC, University of Maine System

A modified filler composition for use in composites, such as paper and paper board, which is produced by reacting a filler material with a binder and a reactant material. Also, a method to produce composites, such as paper and paperboard, produced containing the modified filler composition is disclosed.

Подробнее
Номер записи: 12
05-09-2013 дата публикации

PROCESS FOR PRODUCING MODIFIED CELLULOSE PULPS, CELLULOSE PULP THUS OBTAINED AND USE OF BIOPOLYMER FOR PRODUCING CELLULOSE PULPS

Номер: US20130228297A1
Автор: Massoquete Ademilson, Oyakawa Danilo, Ranocchia Romolo
Принадлежит: FIBRIA CELULOSE S/A

The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starch by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources. Thus, the present invention also relates to a process for the preparation of paper, such as printing, writing, decorative, special or tissue-type papers, through the use of the cellulose pulps modified by the above process. 1. A process for producing modified cellulose pulps comprising a step of adding at least one biopolymer during the process of preparation and treatment of said pulps , characterized in that said biopolymer is starch modified by the chemical reaction of etherification.2. The process claim 1 , according to claim 1 , characterized in that said biopolymer is corn starch.3. The process claim 1 , according to or claim 1 , characterized in that said biopolymer is added in an amount of 5.0 kg/adt to 20.0 kg/adt in relation to the total amount of pulp.4. The process claim 1 , according to any one of to claim 1 , characterized by being an alkaline pulp bleaching process comprising the sequence ADo(Eop)PP and the biopolymer is added between the alkaline bleaching steps or in an alkaline step before bleaching.5. The process claim 1 , according to any one of to claim 1 , characterized in that it is an acid pulp bleaching process and that the ...

Подробнее
Номер записи: 13
12-09-2013 дата публикации

MODIFICATION OF XYLAN

Номер: US20130233501A1
Автор: Chimphango Annie Fabian Abel, Gorgens Johann Ferdinand, Van Zyl Willem Heber
Принадлежит: STELLENBOSCH UNIVERSITY

The invention provides a method of modifying soluble xylan which contains glucuronic acid and/or arabinose side chains so that it can be adsorbed onto other substrates. The method includes the steps of enzymatically modifying the xylan by selectively removing glucuronic acid and/or arabinose side chains from the xylan with α-D-glucuronidase and/or α-L-arabinofuranosidase, and allowing the modified xylan to adsorb onto the substrate. The substrate may be a cellulosic substrate like pulp or paper or a non-cellulosic substrate. The enzymes are able to remove a sufficient number of the xylan side chains so as to decrease water solubility of the xylan, induce xylan precipitation and allow adsorption of the xylan onto other substrates. A pulping process which incorporates modification of xylan and adsorption onto cellulosic material is also provided, as are products which contain the modified xylan. 1. A method of adsorbing xylan onto a substrate , the method comprising the steps of:enzymatically modifying xylan which contains glucuronic acid and/or arabinose side chains so that it has reduced solubility in water compared to naturally occurring xylan, by selectively removing glucuronic acid and/or arabinose side chains with one or both of α-D-glucuronidase and α-L-arabinofuranosidase; andallowing the modified xylan to adsorb onto the substrate.2. The method according to claim 1 , wherein the xylan is modified in the presence of the substrate.3. The method according to claim 1 , wherein the xylan is modified in the absence of the substrate and is brought into contact with the substrate after it has been modified.4. The method according to claim 1 , wherein the xylan is modified by selectively removing glucuronic acid side chains with α-D-glucuronidase.5. The method according to claim 1 , wherein the xylan is modified by selectively removing arabinose side chains with α-L-arabinofuranosidase.6. The method according to claim 1 , wherein the xylan is modified by selectively ...

Подробнее
Номер записи: 14
17-10-2013 дата публикации

Paper substrate containing a wetting agent and having improved print mottle

Номер: US20130273270A1
Автор: David S. Shelmidine, Jeff R. Becker, Kapil M. Singh, Paul J. Fosco, Yan C. Huang
Принадлежит: International Paper Co

The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, enhanced print mottle, as well as print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition.

Подробнее
Номер записи: 15
24-10-2013 дата публикации

FIBROUS STRUCTURES AND METHODS FOR MAKING SAME

Номер: US20130280503A1
Автор: CABELL David William, Eroglu Hasan
Принадлежит: The Procter & Gamble Company

Fibrous structures that contain hydroxyl polymer filaments and solid additives and methods for making same are provided. 1. A fibrous structure comprising a plurality of hydroxyl polymer filaments and a plurality of solid additives , wherein the fibrous structure exhibits a TEA of greater than 1.64 g/in/gsm as measured by the TEA Test Method.2. The fibrous structure according to wherein at least one of the hydroxyl filaments comprises further comprises a non-hydroxyl polymer.3. The fibrous structure according to wherein the non-hydroxyl polymer exhibits a weight average molecular weight of greater than 1 claim 2 ,400 claim 2 ,000 g/mol.4. The fibrous structure according to wherein the non-hydroxyl polymer exhibits a polydispersity of greater than 1.10.5. The fibrous structure according to wherein the non-hydroxyl polymer is at a concentration greater than its entanglement concentration (Ce).6. The fibrous structure according to wherein the non-hydroxyl polymer is selected from the group consisting of: polyacrylamide and its derivatives; polyacrylic acid claim 2 , polymethacrylic acid and their esters; polyethyleneimine; copolymers made from mixtures of the aforementioned polymers; and mixtures thereof.7. The fibrous structure according to wherein the non-hydroxyl polymer comprises polyacrylamide.8. The fibrous structure according to wherein at least one hydroxyl polymer filament comprises a polysaccharide.9. The fibrous structure according to wherein the polysaccharide is selected from the group consisting of: starch claim 8 , starch derivatives claim 8 , starch copolymers claim 8 , chitosan claim 8 , chitosan derivatives claim 8 , chitosan copolymers claim 8 , cellulose claim 8 , cellulose derivatives claim 8 , cellulose derivatives claim 8 , cellulose copolymers claim 8 , hemicelluloses claim 8 , hemicelluloses derivatives claim 8 , hemicelluloses copolymers claim 8 , and mixtures thereof.10. The fibrous structure according to wherein the polysaccharide is ...

Подробнее
Номер записи: 16
31-10-2013 дата публикации

STARCH COMPOSITION FOR USE IN PAPER MANUFACTURE

Номер: US20130284389A1
Автор: Roux Rudy, Voigt Andreas
Принадлежит: Cargill, Incorporated

The starch composition comprises a cationic, cross-linked starch that is partly swollen and partly gelatinized. It has a gelatinization coefficient gT smaller than 0.7 with T the jet cooking temperature. The starch composition suitably comprises a wheat starch or a blend of a wheat starch and another starch, for instance a root or tuber starch. 115.-. (canceled)17. The starch composition of claim 16 , wherein the starch composition has a gelatinization coefficient gT smaller than 0.7 claim 16 , the gelatinization coefficient being defined according to the formula gT=(ηref−ηjet claim 16 , T)/(ηref−ηfinal) with ηref being the Brookfield viscosity after batch cooking at 96° C.; ηjet claim 16 , T being the sample Brookfield viscosity after jet cooking at temperature T; and ηfinal being 40 mPas claim 16 , wherein all Brookfield viscosities are measured at 3% dry solids claim 16 , 100 rpm claim 16 , spindle 2 and 50° C.18. The composition of claim 16 , wherein the starch composition has a gelatinization coefficient gT smaller than 0.6 claim 16 , the gelatinization coefficient being defined according to the formula gT=(ηref−ηjet claim 16 , T)/(ηref−ηfinal) with ηref being the Brookfield viscosity after batch cooking at 96° C.; ηjet claim 16 , T being the sample Brookfield viscosity after jet cooking at temperature T of 120° C.; and ηfinal being 40 mPas claim 16 , wherein all Brookfield viscosities are measured at 3% dry solids claim 16 , 100 rpm claim 16 , spindle 2 and 50° C.19. The composition of claim 16 , wherein the first starch comprises a wheat starch.20. The composition of claim 16 , wherein the first starch comprises a wheat starch claim 16 , wherein the wheat starch has been cross-linked with a diether cross-linker.21. The composition of claim 16 , wherein the first starch comprises a wheat starch claim 16 , wherein the wheat starch has been cross-linked with a diether cross-linker applied in an amount of 60 to 500 ppm.22. The composition of claim 16 , wherein ...

Подробнее
Номер записи: 17
14-11-2013 дата публикации

METHOD FOR IMPROVING PAPERMAKING OR BOARD MAKING PROCESS, USE OF A POLYSACCHARIDE AND PAPER

Номер: US20130299109A1
Автор: Hietaniemi Matti, Kataja-aho Janne, Retulainen Elias, Salminen Kristian
Принадлежит:

The invention relates to a method for improving papermaking or board making process. The method comprises forming a fibre stock, and leading the fibre stock to a headbox and feeding it to a wire to form a wet fibrous web. A at least one polysaccharide having 1,4-β-anomeric configuration in linkages between saccharide units of the polysaccharide backbone or the main polysaccharide backbone is applied to the fibre stock after machine chest or on the wet fibrous web. The invention relates also to paper made by the method and to the use of polysaccharide. 1. Method for improving papermaking or board making process , comprisingforming a fibre stock,leading the fibre stock to a headbox and feeding it to a wire to form a wet fibrous web, characterised in applying at least one polysaccharide having 1,4-β-anomeric configuration in linkages between saccharide units of the polysaccharide backbone or the main polysaccharide backbone to the fibre stock after machine chest or on the wet fibrous web.2. Method according to claim 1 , characterised in selecting the polysaccharide from a group comprising water soluble cellulose derivatives; galactomannans claim 1 , such as guar gum or locust bean gum; galactoglucomannans; carboxymethyl cellulose; xylan and substituted glucans claim 1 , such as xyloglucans; other suitable hydrocolloids claim 1 , such as tamarind gum; chitosan; chitin; or their derivatives.3. Method according to claim 1 , characterised in applying the polysaccharide as a solution.4. Method according to claim 1 , characterised in that the concentration of the polysaccharide in the polysaccharide solution is <60 weight-% claim 1 , more typically 0.02-5 weight-% claim 1 , preferably 0.05-3 weight-% claim 1 , more preferably 0.05-2 weight-%.5. Method according to claim 1 , characterised in applying a mixture of different polysaccharides to the fibre stock after machine chest or on the wet fibrous web.6. Method according to claim 1 , characterised in that the at least one ...

Подробнее
Номер записи: 18
28-11-2013 дата публикации

MANUFACTURE AND USE OF A COMPOSITE STRUCTURE CONTAINING PRECIPITATED CARBONATE

Номер: US20130312925A1
Автор: Gronblom Teemu, Gronroos Lars, Saastamoinen Sakari
Принадлежит:

A precipitated carbonate polysaccharide structure which, when used as a filler, improves the structural strength of paper or board, or gypsum boards, plastics or gums, among others, as well as the stiffness level and optical properties (brightness and opacity) of the paper or board, together or separately with other fillers; carbonates, in particular. The invention further improves the setting of printing ink on the surface of the paper or board. The invention also includes the manufacturing method of the precipitated carbonate polysaccharide structure. 1. A method of producing a composite structure , which is formed of a polysaccharide body , on which carbonate is precipitated , comprising:forming a carbonate ion solution;mixing polysaccharide, in a form having free hydroxyl groups on its surface, into the carbonate ion solution, whereby a carbonate polysaccharide slurry is formed; andprecipitating carbonate salt from the slurry into the polysaccharide.2. The method according to claim 1 , wherein the carbonate ion solution is formed from calcium or magnesium ions or a combination thereof claim 1 , bicarbonate claim 1 , and other states of carbonate claim 1 , preferably from the hydroxide solution thereof claim 1 , most preferably by conducting carbon dioxide to the hydroxide solution.3. The method according to claim 2 , wherein the hydroxide solution is prepared by elutriating claim 2 , in water claim 2 , burnt lime claim 2 , burnt dolomite claim 2 , MgO claim 2 , or another source of calcium or magnesium which claim 2 , when elutriated in water claim 2 , provides an alkaline solution claim 2 , or a mixture of two or more of the above.4. The method according to claim 1 , wherein the polysaccharide is selected from starch claim 1 , cold-soluble starch claim 1 , carboxy-methyl cellulose claim 1 , guar gum or nanocellulose or a mixture of any of the above claim 1 , most preferably starch or nanocellulose.5. The method according to claim 1 , wherein the polysaccharide ...

Подробнее
Номер записи: 19
30-01-2014 дата публикации

Lignin production from lignocellulosic biomass

Номер: US20140030524A1
Автор: George Steven Dowe, Kiran Kadam, Michel A. Simard
Принадлежит: Renmatix Inc

Methods are disclosed for preparing lignin from lignocellulosic biomass using rapid full or partial pressure reduction to separate and pulverize the lignin without fouling the equipment and with improved energy recovery.

Подробнее
Номер записи: 20
07-01-2016 дата публикации

FIBROUS SHEET DISINTEGRATING IN WATER, PROCESS FOR MANUFACTURING SAID FIBROUS SHEET, USE OF SAID FIBROUS SHEET FOR THE MANUFACTURE OF A CORE

Номер: US20160002856A1
Автор: COLIN Philippe, DOZZI Jean-Claude, Probst Pierre, Ruppel Remy, WISS Véronique
Принадлежит: SCA TISSUE FRANCE

A fibrous sheet having a basis weight of between 20 and 1000 g/mbeing manufactured according to a wet papermaking process, and disintegrating in water in less than 120 seconds, has 10 to 70% starch and at least 30% of papermaking fibres on the basis of the total weight of the dry fibrous sheet. The sheet may be used for the manufacture of a water disintegrable core in a roll of tissue paper. 123-. (canceled)24. A core comprising a helical winding of one or more strips comprising a fibrous sheet having a basis weight of between 20 and 1000 g/m , being manufactured according to a wet papermaking process , and disintegrating in water in less than 120 seconds , wherein the fibrous sheet comprises 10 to 70% starch and at least 30% of papermaking fibres on the basis of the total weight of the dry fibrous sheet.25. A toilet paper roll comprising a core according to .26. A tampon applicator comprising a fibrous sheet having a basis weight of between 20 and 1000 g/m claim 24 , being manufactured according to a wet papermaking process claim 24 , and disintegrating in water in less than 120 seconds claim 24 , wherein the fibrous sheet comprises 10 to 70% starch and at least 30% of papermaking fibres on the basis of the total weight of the dry fibrous sheet.27. The core of claim 24 , wherein the fibrous sheet comprises 15 to 40% starch on the basis of the total weight of the dry fibrous sheet.28. The core of claim 24 , wherein the fibrous sheet has a basis weight of between 100 and 600 g/m.29. The core of claim 24 , wherein the disintegration time of the fibrous sheet in water claim 24 , measured in accordance with the NF Q34-020 applied to a specimen of the sheet of 9×8 cm claim 24 , is less than 50 seconds.30. The core of claim 24 , wherein the loss of strength of the fibrous sheet measured according to the table test as reported in the specification claim 24 , corresponds to the loss of strength of a specimen of said sheet forming an angle of at least 85° after having being ...

Подробнее
Номер записи: 21
04-01-2018 дата публикации

PROCESS FOR MAKING TISSUE OR TOWEL PRODUCTS COMPRISING NANOFILAMENTS

Номер: US20180002502A1
Автор: Ziegenbein Tobias
Принадлежит:

Processes for making absorbent towel paper webs comprising the steps of (a) providing a papermaking furnish comprising: i) 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 comprising: u.) from about 20.0% to about 88.5% by weight of the dry fiber basis of the absorbent towel paper web of softwood pulp fiber, wherein the softwood pulp fiber is optionally refined before being added to the mixture; v.) from about 0.05% to about 5.0% by weight of the dry fiber basis of the absorbent towel paper web of strengthening additive, ii) 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 comprising; y.) from about 9.9% to about 54.9% by weight of the dry fiber basis of the absorbent towel paper web of hardwood pulp fibers; and z.) from about 0.05% to about 20.0% by weight of the dry fiber basis of the absorbent towel paper web of cellulose nanofilaments; iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose; and iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers; v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers; and (b) forming a wet fibrous web from said paper making furnish; (c) drying said web until said web contains not more than about 10% by weight moisture. 1. A process for making absorbent towel paper webs comprising the steps of: [ [ 'wherein the softwood pulp fiber is optionally refined before being added to the mixture;', 'u.) from about 20.0% to about 88.5% by weight of the dry fiber basis of the absorbent towel paper web of softwood pulp fiber,'}, 'v.) from about 0.05% to about 5.0% by weight of the dry fiber basis of the absorbent towel paper web of strengthening additive,, 'i) from about 45% to about 90% by weight of ...

Подробнее
Номер записи: 22
04-01-2018 дата публикации

MULTI-DENSITY TISSUE TOWEL PRODUCTS COMPRISING HIGH-ASPECT-RATIO CELLULOSE FILAMENTS

Номер: US20180002864A1
Автор: Ziegenbein Tobias
Принадлежит:

An absorbent towel paper web product produced by a paper making process that introduces differential density within the fibrous web and comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of the paper web product with cellulose nanofilaments. 1. An absorbent towel paper web product produced by a paper making process that introduces differential density within the fibrous web and comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of the paper web product with cellulose nanofilaments.2. The absorbent towel paper web according to wherein the towel paper web comprises from about 0.5% to about 5.0% by weight of the dry fiber basis of the tissue paper web product of a cationic strengthening polymer.3. The absorbent towel paper web according to wherein the paper making process is a through-air dried process.4. The absorbent towel paper web according to wherein the paper making process is an NTT process.5. The absorbent towel paper web according to wherein the paper making process is an ATMOS process.6. The absorbent towel paper web according to wherein the paper making process is a UCTAD dried process.7. A soft sanitary tissue paper web product produced by a paper making process that introduces differential density within the fibrous web and comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of the paper web product with cellulose nanofilaments.8. The soft sanitary tissue paper web product according to wherein the tissue paper web comprises from about 0% to about 30% by weight of the dry fiber basis of the tissue paper web product of softwood fibers.9. The soft sanitary tissue paper web according to wherein the tissue paper web comprises from about 0.5% to about 1.5% by weight of the dry fiber basis of the tissue paper web product of a strengthening polymer.10. The soft sanitary tissue paper web according to wherein the paper making process is a through-air ...

Подробнее
Номер записи: 23
04-01-2018 дата публикации

Composition and method for producing pre-impregnated decorative base paper comprising biopolymer nanoparticles

Номер: US20180002867A1
Автор: Claude Perrin, Helene Villaume
Принадлежит: Ahlstrom Munksjo Dettingen GmbH

A pre-impregnated decorative base paper for decorative coating materials, comprising biopolymer nanoparticles.

Подробнее
Номер записи: 24
02-01-2020 дата публикации

PRE-MIX USEFUL IN THE MANUFACTURE OF A FIBER BASED PRODUCT

Номер: US20200002893A1
Автор: Backfolk Kaj, Heiskanen Isto, Saukkonen Esa
Принадлежит: STORA ENSO OYJ

The present invention relates to a process wherein microfibrillated cellulose (MFC) is mixed with at least two retention aids, selected from a cationic or amphoteric polymer and a microparticle or nanoparticle as a pre-mix before dosing it to the stock in a process for manufacture of a fiber based product. 2. A process according to claim 1 , wherein said microparticles or nanoparticles are inorganic.3. A process according to claim 2 , wherein said microparticles or nanoparticles are silica claim 2 , microsilica claim 2 , bentonite or microbentonite particles.4. A process according to claim 1 , wherein said microparticles or nanoparticles are anionic at neutral or alkaline pH.5. A process according to claim 1 , wherein the weight ratio of polymer to microparticles or nanoparticles is in the range of from 1:3 to 1:20.6. A process according to claim 1 , wherein said cationic or amphoteric polymer is a cationic polymer.7. A process according to claim 6 , wherein said cationic polymer is selected from starch claim 6 , polyaminoamide-epichlorohydrin and cationic polyacryl amide or copolymer thereof.9. A process according to claim 1 , wherein the weight ratio of polymer to microparticles or nanoparticles is in the range of from 1:5 to 1:12. The present invention relates to a process wherein microfibrillated cellulose (MFC) is mixed with at least two retention aids, selected from a cationic or amphoteric polymer and a microparticle or nanoparticle as a pre-mix useful in a process for manufacture fiber based products such as paper, board, tissues, nonwoven products or films.In systems where a high amount of fine materials or water soluble additives are being dosed in a process for manufacture of fiber based products, it is very difficult to mix other functional chemicals, such as retention agents, into the system. Dosing retention system into a multicomponent furnish might, for example, lead to uneven charge neutralization of the system or fluctuations in the retention or ...

Подробнее
Номер записи: 25
07-01-2021 дата публикации

Method for manufacturing a multi-layered paperboard, multi-layered paperboard and composition for use in multi-layered paperboard manufacturing

Номер: US20210002830A1
Автор: Hietaniemi Matti
Принадлежит: KEMIRA OYJ

A method for manufacturing a multi-layered paperboard is disclosed, which includes at least two fibrous layers, in which method at least one layer of the multi-layered paperboard is treated by applying an aqueous solution of a first strength component in dissolved form including anionic strength polymer and/or amphoteric strength polymer composition on a surface of layer, and an aqueous solution of a cationic second strength component in dissolved form is added to a fibre stock from which at least one of the fibrous layers joined together is formed. 1. A method for manufacturing a multi-layered paperboard , which comprises at least two fibrous layers and which layers are formed by multiple separate forming units , wherein at least part of water is drained from at least one layer , the layers are joined together , and the joined layers are subjected to further draining , wet-pressing and drying for obtaining the multi-layered paperboard product , said method comprising treating at least one fibrous layer of the multi-layered paperboard is by applying an aqueous solution of a first strength component in dissolved form comprising anionic strength polymer and/or amphoteric strength polymer composition on a surface of the layer , which surface is arranged to be in contact with other layer of the multi-layered paperboard to be produced , prior to joining the fibrous layers together , and adding an aqueous solution of a cationic second strength component in dissolved form to a fibre stock from which at least one of the fibrous layers joined together is formed.2. The method according to claim 1 , wherein the first strength component comprises anionic strength polymer comprising an anionic vinyl polymer claim 1 , carboxymethyl cellulose or any combination thereof.3. The method according to claim 1 , wherein the first strength component comprises amphoteric strength polymer composition comprising amphoteric vinyl polymer claim 1 , or a combination of anionic strength polymer( ...

Подробнее
Номер записи: 26
07-01-2021 дата публикации

SAG-RESISTANT ACOUSTIC BOARD

Номер: US20210002890A1
Автор: Adams Bruce E., DIFFENBAUGH Kimberly S., KRICK Charles G.
Принадлежит:

Described herein is an acoustic building panel comprising a body comprising inorganic fiber in an amount ranging from about 60.0 wt. % to about 90.0 wt. % based on the total weight of the body; and microfibrillated fiber in an amount ranging from about 0.5 wt. % to about 10 wt. % based on the total weight of the body. 1. An acoustic building panel comprising: inorganic fiber in an amount ranging from about 60.0 wt. % to about 90.0 wt. % based on the total weight of the body; and', 'microfibrillated fiber in an amount ranging from about 0.25 wt. % to about 12.5 wt. % based on the total weight of the body., 'a body comprising24.-. (canceled)5. The acoustic building panel according to claim 1 , wherein the body further comprises a filler selected from the group consisting of perlite claim 1 , calcium carbonate claim 1 , limestone claim 1 , titanium dioxide claim 1 , sand claim 1 , barium sulfate claim 1 , clay claim 1 , mica claim 1 , dolomite claim 1 , silica claim 1 , talc claim 1 , wollastonite claim 1 , calcite claim 1 , aluminum trihydrate claim 1 , pigments claim 1 , zinc oxide claim 1 , zinc sulfate claim 1 , and combinations thereof claim 1 , wherein the filler is present in an amount ranging from about 1.0 wt. % to about 30.0 wt. % based on the total weight of the body.6. (canceled)7. The acoustic building panel according to claim 1 , wherein the body further comprises starch claim 1 , wherein the starch is present in an amount ranging from about 8.0 wt. % to about 15.0 wt. % based on the total weight of the body.8. (canceled)9. The acoustic building panel according to claim 1 , wherein the body has a bulk density ranging from about 96 kg/mto about /ft480 kg/m.10. The acoustic building panel according to claim 1 , wherein the body has a first major surface opposite a second major surface and a side surface extending therebetween claim 1 , the body exhibit an airflow resistance ranging from about 120 cgs rayls/cm to about 170 cgs rayls/cm.11. An acoustic ...

Подробнее
Номер записи: 27
03-01-2019 дата публикации

A Sizing Method for Making Paper and Paper Prepared Thereof

Номер: US20190003125A1
Автор: CHEN Zhi, Hou Kun, Huang Kaihong, Thomas James L., Xiao Jinhai, Zhang Xiaofeng
Принадлежит: ECOLAB USA INC.

The present application discloses a sizing method for making paper. An alkenyl succinic anhydride (ASA) is added to a papermaking process. An aluminum salt is added in one or more process steps during the papermaking process. Preferably, the aluminum salt is an aluminum salt which can generate free aluminum ion in aqueous solution. The sizing method of the present application enhances the usage efficiency of a sizing agent and the aluminum salt, as well as provides paper having a high moisture content. 1. A sizing method for making paper , the method comprising:adding alkenyl succinic anhydride to a papermaking furnish in a papermaking process, andadding an aluminum salt to one or more process steps during the papermaking process via surface treatment.2. The sizing method of claim 1 , wherein the one or more process steps during the papermaking process are selected from a process step at a forming section of the paper machine claim 1 , a process step at a multilayer paperboard combining section claim 1 , a process step at a press section claim 1 , a process step at a drying section claim 1 , a process step at a surface sizing section claim 1 , ore a combination thereof.3. The sizing method of claim 1 , wherein the the one or more process steps during the papermaking process is a process step at a surface sizing section.5. The sizing method of claim 1 , wherein the alkenyl succinic anhydride is added to the papermaking furnish as an emulsion.6. The sizing method of claim 1 , wherein the papermaking furnish has a pH of from about 4 to about 9 before the addition of alkenyl succinic anhydride.7. The sizing method of claim 4 , wherein each of Rand Ris C-Calkyl.8. The sizing method of claim 1 , wherein the alkenyl succinic anhydride is added in an amount of at least about 5 kilograms per ton of paper.9. The sizing method of claim 1 , wherein the aluminum salt is alum claim 1 , aluminum chloride claim 1 , polyaluminum chloride claim 1 , or a combination thereof.10. The ...

Подробнее
Номер записи: 28
03-01-2019 дата публикации

HYDROLYSABLE SHEET

Номер: US20190003128A1
Автор: HASEZAWA Atsuko, IZUMI Shinya, MUKOYAMA Shinpei, TANAKA Asako
Принадлежит:

A toilet cleaning sheet includes a multi-ply base paper sheet that is substantially water-dispersible. The multi-ply base paper sheet contains pulp and a water-soluble binder and is impregnated with an aqueous chemical agent. The basis weight of the multi-ply base paper sheet is 30 gsm to 150 gsm, and the content of the water-soluble binder increases towards a front surface and/or a back surface. 1. A hydrolysable sheet comprising a multi-ply base paper sheet that is substantially water-dispersible , the multi-ply base paper sheet containing pulp and a water-soluble binder and being impregnated with an aqueous chemical agent , whereina basis weight of the multi-ply base paper sheet is 30 gsm to 150 gsm, anda content of the water-soluble binder increases towards a front surface and/or a back surface.2. The hydrolysable sheet according to claim 1 , wherein embossments are formed on the hydrolysable sheet.3. The hydrolysable sheet according to claim 2 , wherein first embossments and second embossments claim 2 , arranged around the first embossments claim 2 , are formed on an entire surface of the hydrolysable sheet claim 2 , a shape of a protruding part of each of the second embossments differing from a shape of a protruding part of each of the first embossments.4. The hydrolysable sheet according to claim 3 , wherein the first embossments are arrayed in a rhomboid grid.5. The hydrolysable sheet according to claim 3 , wherein each of the second embossments is arrayed between two of the first embossments.6. The hydrolysable sheet according to claim 3 , wherein the first embossments contact the second embossments to form a conjoined embossment.7. The hydrolysable sheet according to claim 2 , wherein a grid-shaped embossed pattern is formed on the hydrolysable sheet such that convex portions and concave portions claim 2 , obtained by inverting shapes of the convex portions claim 2 , are alternately arranged in each of many lines claim 2 , and convex portions and concave ...

Подробнее
Номер записи: 29
12-01-2017 дата публикации

Algal Thermoplastics, Thermosets, Paper, Adsorbants and Absorbants

Номер: US20170009197A1
Автор: Cernohous Jeffrey J., Harlin Ali, Jääskeläinen Anna-stiina, Kiuru Jani, Laine Christiane, Liitiä Tiina, McKee Adrienne, Nattinen Kalle, Pawloski Adam R., Pere Jaakko, Piechocki John, Sousa Sonia
Принадлежит: TerraVia Holdings, Inc.

Provided are biomass-based materials and valuable uses of microalgal biomass including: (i) acetylation of microalgal biomass to produce a material useful in the production of thermoplastics; (ii) use of triglyceride containing microalgal biomass for production of thermoplastics; (iii) combination of microalgal biomass and at least one type of plant polymer to produce a material useful in the production of thermoplastics; (iv) anionization of microalgal biomass to form a water absorbant material; (v) cationization of microalgal biomass, and optional flocculation, to form a water absorbant material; (vi) crosslinking of anionized microalgal biomass; (vii) carbonization of microalgal biomass; and (viii) use of microalgal biomass in the making of paper. 1133-. (canceled)134. A composition comprising a blend of a moldable polymer , a microalgal biomass , and optionally a lipid selected from a triacylglyceride , a fatty acid , a fatty acid salt , a fatty acid ester , and one or more combinations thereof , wherein the microalgal biomass is optionally covalently modified and is obtained from a heterotrophic oleaginous microalgae , and wherein the microalgal biomass comprises less than 3500 ppm chlorophyll.135136-. (canceled)137Parachlorella, Prototheca,ChlorellaParachlorella, Prototheca,Chorella. The composition of claim 134 , wherein the microalgal biomass is obtained from or and strains having at least 85% nucleotide sequence identity in 23S rRNA sequences to a or strain.138. (canceled)139. The composition of claim 134 , wherein the microalgal biotnass is obtained from heterotrophic oleaginous microalgae that is lysed.140. The composition of claim 134 , wherein the lipid comprises 15% or less of the composition.141. The composition of claim 134 , wherein the lipid comprises 10% or less of the composition.142. The composition of claim 134 , wherein the lipid comprises 5% or less of the composition.143. The composition of claim 134 , wherein the lipid comprises 2% or less ...

Подробнее
Номер записи: 30
11-01-2018 дата публикации

PRINT MEDIA

Номер: US20180009251A1
Автор: Fu Xulong, KNIGHT Douglas, Pal Lokendra
Принадлежит: Hewlett-Packard Development Comany, L.P.

The present disclosure is drawn to print media, laminated decor products, and methods of making the same. In one example, a print medium can include an open paper substrate and a multivalent metal salt treatment applied to the open paper substrate at a multivalent metal salt loading into the open paper substrate at from 0.5 gsm to 5 gsm. The open paper substrate can include wood fiber including softwood fiber, hardwood fiber, or a blend of softwood fiber and hardwood fiber; binder including starch, protein, or hydrophilic polymer; and from 20 wt % to 50 wt % of TiO. 1. A print medium , comprising: wood fiber including softwood fiber, hardwood fiber, or a blend of softwood fiber and hardwood fiber,', 'binder including starch, protein, or hydrophilic polymer, and', {'sub': '2', 'from 20 wt % to 50 wt % of TiO; and'}], 'an open paper substrate, comprisinga multivalent metal salt treatment applied to the open paper substrate at a multivalent metal salt loading into the open paper substrate at from 0.5 gsm to 5 gsm.2. The print medium of claim 1 , wherein the multivalent metal salt increases the absorption capability of the open paper substrate.3. The print medium of claim 1 , wherein the multivalent metal salt treatment comprises 80 wt % to 99.9 wt % multivalent metal salt claim 1 , and from 0.1 wt % to 20 wt % starch claim 1 , protein claim 1 , or hydrophilic polymer binder.4. The print medium of claim 1 , wherein the print medium has a Cobb resin absorption value of at least 50 g/mwith 60 seconds.5. The print medium of claim 3 , wherein the Cobb resin absorption value for the print medium is at least 40 wt % increased compared to the Cobb resin absorption value for the open paper substrate.6. The print medium of claim 1 , wherein the print medium is a decor paper having a printing width of at least 1 meter.7. A laminated decor product claim 1 , comprising: [{'sub': '2', 'an open paper substrate including wood fiber, binder, and 20 wt % to 50 wt % of TiO, and'}, 'a ...

Подробнее
Номер записи: 31
14-01-2016 дата публикации

FILLER FOR PAPERMAKING PROCESS

Номер: US20160010280A1
Автор: Andersson Kjell Rune, Garcia-Lindgren Cherryleen, Sanne Erik, van der Horst Peter Marten, Wallberg Marie-Louise, Wännström Sune
Принадлежит:

The present invention relates to a filler comprising calcium salt and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65, wherein the filler is substantially free from fibres or fibrils of cellulose or lignocellulose. The invention also relates to a filler comprising calcium salt and a cellulose derivative having a degree of substitution of net ionic groups up to about 0.65, wherein the cellulose derivative contains cationic groups. 1. A filler comprising calcium salt and water-soluble cellulose derivative having a degree of substitution of net anionic groups up to about 0.65 , wherein the filler is substantially free from fibers or fibrils of cellulose or lignocellulose , wherein at least about 30 by weight of the cellulose derivative is absorbed on or attached to the calcium salt.2. The filler according to claim 1 , wherein the degree of substitution is at least about 0.15.3. The filler according to claim 1 , wherein the degree of substitution is up to about 0.60.4. The filler according to claim 1 , wherein the degree of substitution is up to about 0.50.5. The filler according to claim 1 , wherein the cellulose derivative contains carboxymethyl groups.6. The filler according to claim 1 , wherein the cellulose derivative contains quaternary ammonium groups.7. The filler according to claim 1 , wherein the cellulose derivative is anionic.8. The filler according to claim 1 , wherein the cellulose derivative is amphoteric.9. The filler according to claim 1 , wherein the calcium salt is calcium carbonate.10. The filler according to claim 1 , wherein the calcium salt is precipitated calcium carbonate.11. The filler according to claim 1 , wherein the calcium salt is ground calcium carbonate.12. The filler according to claim 1 , wherein at least about 45% by weight of the cellulose derivative is absorbed on or attached to the calcium salt.13. The filler according to claim 1 , wherein at least about 60% by weight of the cellulose ...

Подробнее
Номер записи: 32
14-01-2016 дата публикации

Enhanced bulk and high strength paper

Номер: US20160010283A1
Автор: Andrea Schneider, David S. Soane, Gangadhar Jogikalmath
Принадлежит: NanoPaper LLC

Disclosed herein are systems and methods for attaching particulate additives to a population of cellulose fibers dispersed in an aqueous solution. The cellulose fibers are treated with an activator that forms complexes with them. The particulate additive is attached to a tether that is capable of interacting with the activator, thereby forming a tether-bearing particulate additive. The tether-bearing particulate additive can be added to the activated suspension of cellulose fibers. The resulting interaction between the tether and the activator forms durable complexes that attach the particulate additive to the cellulose fibers. Using these systems and methods, useful additives like starches can be attached to cellulose fibers, imparting advantageous properties such as increased strength to paper products formed thereby. These systems and methods are particularly useful for papermaking involving virgin pulp fibers, recycled fibers, or any combination thereof.

Подробнее
Номер записи: 33
10-01-2019 дата публикации

Polysaccharide Adhesive

Номер: US20190010302A1
Автор: Kozich Martin, Seidl Bernhard, WASTYN Marnik Michel
Принадлежит:

The present invention relates to the use of a polysaccharide adhesive containing cold water-soluble or cold water-swelling, covalently cross-linked starch as a binder together with a foam generator for producing an adhesive foam. 16.-. (canceled)7. A method comprising:obtaining a polysaccharide adhesive comprising cold water-soluble and/or cold water-swellable, completely lysed, covalently cross-linked starch as a binding agent in combination with a foaming agent further defined as comprising at least one anionic, cationic, amphoteric, or nonionic surfactant; andusing the polysaccharide adhesive to prepare an adhesive foam.8. The method of claim 7 , further comprising selecting a concentration of the covalently cross-linked starch in the polysaccharide adhesive such that an aqueous claim 7 , unfoamed suspension of the adhesive has a viscosity within a range of about 1000 to 4000 mPa-s (Brookfield viscosity claim 7 , 25° C. claim 7 , 100 rpm).9. The method of claim 8 , wherein the concentration of the covalently cross-linked starch in the polysaccharide adhesive is selected such that the aqueous claim 8 , unfoamed suspension of the adhesive has a viscosity within a range of about 1500 to 2500 mPa-s.10. The method of claim 7 , wherein not more than 70% by mass of the cross-linked starch is substituted by degraded starch.11. The method of claim 10 , wherein not more than 60% by mass of the cross-linked starch is substituted by degraded starch.12. The method of claim 11 , wherein not more than 50% by mass of the cross-linked starch is substituted by degraded starch.13. The method of claim 10 , wherein the degraded starch comprises at least one dextrin claim 10 , maltodextrin claim 10 , and/or enzymatically modified starch.14. The method of claim 7 , wherein an aqueous claim 7 , unfoamed suspension containing the polysaccharide adhesive has a solids content of more than 15% by mass of the suspension.15. The method of claim 14 , wherein the aqueous claim 14 , unfoamed ...

Подробнее
Номер записи: 34
14-01-2021 дата публикации

ARAMID FIBER FAR-INFRARED EMITTING PAPER AND PREPARATIN METHOD THEREOF

Номер: US20210010204A1
Автор: Cai Manyuan, Chen Long, Nie Yanyan, Pan Hezheng, SUN Xiaogang, Zheng Dianmo
Принадлежит:

The present invention provides a preparation method of aramid fiber far-infrared emitting paper. In the present invention, para-aramid chopped fiber and para-aramid pulp fiber are used as paper base functional materials with excellent characteristics of high specific strength and high specific stiffness. In addition, the para-aramid chopped fiber and the para-aramid pulp fiber can form a paper material with pores and porous channels, and carbon nanotubes are embedded into the structural pores and porous channels of the paper material. Therefore, the aramid fiber far-infrared emitting paper has better molding quality and composite performance. Results of embodiments indicate that: A far-infrared wavelength emitted by the aramid fiber far-infrared emitting paper provided in the present invention is 4 μm to 20 μm, a main frequency band thereof is approximately 10 μm, and far-infrared conversion efficiency is up to 99%; and the aramid fiber far-infrared emitting paper has tensile strength of 0.12 KN/mmto 0.18 KN/mm, and can be bent and folded. 1. A preparation method of aramid fiber far-infrared emitting paper , comprising the following steps:(1) mixing para-aramid chopped fiber with a disintegrating agent and water, conducting disintegration, cleaning obtained fiber, conducting low-temperature plasma surface treatment, mixing obtained fiber with a dispersant and water, and conducting ultrasonic treatment and pulping sequentially to obtain para-aramid chopped fiber pulp;mixing para-aramid pulp fiber with the dispersant and water, and conducting ultrasonic treatment and pulping sequentially to obtain para-aramid pulp fiber pulp; andmixing the para-aramid chopped fiber pulp and the para-aramid pulp fiber pulp, and conducting shearing to obtain aramid fiber pulp;(2) mixing carbon nanotubes with a dispersant and ethanol, and conducting ultrasonic treatment and shearing sequentially to obtain carbon nanotube dispersion liquid; and(3) mixing the aramid fiber pulp in step (1) ...

Подробнее
Номер записи: 35
03-02-2022 дата публикации

FAST DISINTEGRATING PAPER PRODUCTS AND METHODS OF MAKING

Номер: US20220034039A1
Автор: Lucia Lucian, Naithani Ved P., Pal Lokendra
Принадлежит:

Described are compositions for use in paper products including a modified starch, paper products including a modified starch, and methods of making paper products, and the like. The compositions can include a pulp slurry and a modified starch and can include hardwood fibers, softwood fibers, non-wood fibers, or a combination thereof. Provided for are paper products, such as tissue paper, having a basis weight below 150 gsm. Also provided for are methods for making paper products that can include mixing a pulp slurry with an enzymatically modified starch derivative. 1. A composition comprising a pulp slurry and a modified starch , wherein the modified starch has a cyclic structure and water solubility greater than 10 mg/mL when immersed at about 25° C. , and wherein the pulp slurry comprises hardwood fibers , softwood fibers , non-wood fibers , or a combination thereof.2. The composition according to claim 1 , wherein the modified starch is β-cyclodextrin.3. The composition according to claim 2 , wherein a ratio of β-cyclodextrin to fiber is from about 0.05% to about 5.0%.4. The composition according to claim 3 , further comprising soy lecithin protein claim 3 , wherein the soy lecithin protein to β-cyclodextrin ratio is from about 1.0% to about 200%.5. The composition according to claim 4 , further comprising glyoxalated polyacrylamide claim 4 , wherein the soy lecithin protein to β-cyclodextrin ratio is from about 1.0% to about 200%.6. The composition according to claim 2 , wherein the pulp slurry is comprised of from about 0% to about 80% recycled fibers.7. The composition according to claim 1 , wherein the pulp slurry is autohydrolyzed before mixing with the modified starch.8. A paper product having a basis weight below 150 gsm claim 1 , comprising:a blend of hardwood fibers and softwood fibers, wherein a total fiber content is at least 80 wt % of a total weight of the paper product; anda modified starch, wherein the modified starch is from about 0.02 wt % to ...

Подробнее
Номер записи: 36
17-04-2014 дата публикации

PAPER SUBSTRATES USEFUL IN WALLBOARD TAPE APPLICATIONS

Номер: US20140102652A1
Автор: Wild Martha P.
Принадлежит: INTERNATIONAL PAPER COMPANY

A paper substrate, particularly useful in wallboard tape applications containing PVOH on and/or in at least one surface of the paper, as well as methods of making and using the same. The use of the tape of the invention is used in conjunction with a joint compound that may contain no or, reduced amounts of bonding agent. 1. A paper substrate , comprisinga web of cellulose fibers; andpolyvinyl alcohol.2. The paper substrate according to claim 1 , comprising polyvinyl alcohol on and/or within the web of cellulose fibers.3. The paper substrate according to claim 1 , wherein said substrate is wallboard tape.4. The paper substrate according to claim 1 , wherein said paper substrate is neutral claim 1 , acidic or alkaline.5. The paper substrate according to claim 1 , wherein a surface of the substrate is abraded.6. The paper substrate according to claim 1 , comprising from 0.05 to 20 wt % polyvinyl alcohol based on the total weight of the substrate.7. The paper substrate according to claim 1 , further comprising starch.8. The paper substrate according to claim 1 , further comprising from 0.05 to 20 wt % starch based on the total weight of the substrate.9. The paper substrate according to claim 1 , wherein said polyvinyl alcohol is from 75 to 100% hydrolyzed.10. The paper substrate according to claim 1 , wherein said substrate has a basis weight of from 50 to 120 lbs/3000 sq. ft.11494. The paper substrate according to claim 1 , wherein the substrate has a CD tensile of from 5 to 60 lbf/inch width as measured by TAPPI method .12494. The paper substrate according to claim 1 , wherein the substrate has a MD tensile of from 25 to 100 lbf/inch width as measured by TAPPI method .13. A method of making the paper substrate according to claim 1 , comprising contacting the polyvinyl alcohol with the cellulose fibers.14. The method according to claim 13 , wherein said contacting occurs during at least one point in the paper-making process claim 13 , said point selected from at least ...

Подробнее
Номер записи: 37
21-01-2021 дата публикации

Fiber structural body and method for manufacturing the same

Номер: US20210017711A1
Автор: Hideki Tanaka, Shinobu Yokokawa, Tetsuya Aoyama
Принадлежит: Seiko Epson Corp

A fiber structural body includes fibers and a fibroin which binds the fibers, and when the fibers are represented by A, and the fibroin is represented by B, the following formulas (1) and (2) are satisfied. 0.03≤volume average particle diameter of B /average width of A in short direction≤4.00  (1) 0.01≤dry mass of B with respect to total mass of fiber structural body/(dry mass of A with respect to total mass of fiber structural body+dry mass of B with respect to total mass of fiber structural body)≤0.40  (2)

Подробнее
Номер записи: 38
21-01-2021 дата публикации

UNBLEACHED PULP PRODUCT AND THE PROCESS OF PRODUCING THE SAME

Номер: US20210017712A1
Автор: NELSON Kimberly, RAMASAMY Puvaneswari, RANGANATHAN Sivasankari
Принадлежит: MYBIOMASS SDN. BHD.

The present invention relates to an unbleached pulp product comprising of an unbleached pulp, starch and nanocellulose consisting of nanofibrils and the process of producing the same. The unbleached pulp product has a nanocellulose concentration of between 0.1 wt % to 8.0 wt % and a starch concentration of between 0.1 wt % to 8.0 wt % based on the overall weight of the composition. The nanocellulose is derived from various lignocellulosic biomass such as empty fruit bunches of oil palm and any other suitable lignocellulosic biomass. The nanocellulose is added with starch to a corrugating medium pulp at a prescribed concentration and ratio. The composition is then converted into various pulp products such as molded pulp products, paperboard, coreboard, containerboard, corrugating medium, cardboard, linerboard, board liner or any other structural products. In an embodiment, the unbleached pulp may first be converted into various unbleached pulp products. The surface of the produced products is then further coated with the mixture of nanocellulose and starch. The prescribed ratio of the nanocellulose and starch in the composition or coated on the surface of the pulp products enhances the strength of the unbleached pulp and products produced using the same unbleached pulp. 2. The process as claimed in wherein the nanocellulose concentration is 0.5 wt % to 2.0 wt %.3. The process as claimed in wherein the nanocellulose concentration is less than 1.0 wt %.4. The process as claimed in wherein the starch concentration is 0.5 wt % to 2.0 wt %.5. The process as claimed in wherein the starch concentration is less than 1.0 wt %.6. The process as claimed in wherein the nanocellulose concentration is 0.5 wt % to 2.0 wt % and the starch concentration is 0.5 wt % to 2.0 wt %.7. The process as claimed in wherein the nanocellulose concentration is less than 1.0 wt % and the starch concentration is less than 1.0 wt %.8. The process as claimed in any of to wherein the nanocellulose is ...

Подробнее
Номер записи: 39
21-01-2021 дата публикации

Fluorochemical-free oil and grease resistant cellulosic materials

Номер: US20210017715A1
Автор: Didier Andre Pierre DELNOYE, Jan Albert Bleeker, John Beugeling, Pieter Slor, Simon Petrus Jozef Laan
Принадлежит: Cooperative Avebe UA

The invention pertains to a cellulosic material provided with a coating comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3−10×10 6 Da and a water-soluble starch extender present in a quantity of 0 to 25 wt. % based on the coating dry weight, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, as well as to use thereof in improving the oil and grease resistance of paper. The invention furthermore pertains to a method to improve the oil and grease resistance of a cellulosic material, comprising providing a cellulosic material, coating said material on at least one side with a homogenous aqueous composition comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3−10×106 Da and 0-3 wt. % of a starch extender, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, and drying the cellulosic material.

Подробнее
Номер записи: 40
26-01-2017 дата публикации

Grafted crosslinked cellulose

Номер: US20170022314A1
Автор: Angel Stoyanov, Charles E. Miller, Karen Brogan, Maike Siemons, Torsten Linder
Принадлежит: Weyerhaeuser NR Co

Grafted, crosslinked cellulosic materials include cellulose fibers and polymer chains composed of at least one monoethylenically unsaturated acid group-containing monomer (such as acrylic acid) grafted thereto, in which one or more of said cellulose fibers and said polymer chains are crosslinked (such as by intra-fiber chain-to-chain crosslinks). Some of such materials are characterized by a wet bulk of about 10.0-17.0 cm 3 /g, an IPRP value of about 1000 to 7700 cm 2 /MPa·sec, and/or a MAP value of about 7.0 to 38 cm H 2 O. Methods for producing such materials may include grafting polymer chains from a cellulosic substrate, followed by treating the grafted material with a crosslinking agent adapted to effect crosslinking of one or more of the cellulosic substrate or the polymer chains. Example crosslinking mechanisms include esterfication reactions, ionic reactions, and radical reactions, and example crosslinking agents include pentaerythritol, homopolymers of the graft species monomer, and hyperbranched polymers.

Подробнее
Номер записи: 41
25-01-2018 дата публикации

A method for producing interpenetrating polymer network material, a product thereof and use of the product

Номер: US20180023253A1
Автор: Carceller Rosa, Hietaniemi Matti, Lundin Tom
Принадлежит: KEMIRA OYJ

The present invention relates to an interpenetrating polymer network (IPN) material comprising microcrystalline cellulose (MCC), microfib-rillated cellulose (MFC) or a mixture thereof, and at least one polymer forming an IPN together with the MCC, MFC or mixture thereof. The present invention further relates to a process for producing the IPN material, and to use of the IPN material in paper industry. 1. A process for producing an interpenetrating polymer network (IPN) material comprisingi) providing an aqueous solution comprising microcrystalline cellulose (MCC), microfibrillated cellulose (MFC) or a mixture thereof and at least one monomer;ii) polymerizing in situ the at least one monomer to form IPN together with the MCC, MFC or mixture thereof; andiii) obtaining the IPN material.2. The process according to claim 1 , wherein the at least one monomer is cationic or anionic monomer.3. The process according to claim 1 , wherein the at least one monomer is selected from a group consisting ofacrylamide, N-methylolacrylamide, N-methylol(meth)acrylamide, N,N-dimethylaminopropylmethacrylamide, N,N-dimethylaminoethylacrylamide, N-[2-(dimethylamino)-1,1 -dimethylethyl]acrylamide,cationic monomers selected from a group consisting of 2-(acryloyloxy)ethyl]trimethylammonium chloride, (3-acrylamidopropyl)trimethyl ammonium chloride, [2-(methacryloyloxy)ethyl]-trimethylammonium chloride, [3-(methacryoylamino)propyl]trimethylammonium chloride, 2-(diethylamino)ethyl acrylate, 2-(dimethylamino)ethyl acrylate,anionic monomers selected from a group consisting of acrylic acid, acryloyl chloride, methacrylic acid, 2-acrylamido-2-methylpropane sulfonic acid, sodi-um 2-(acryloylamino)2-methyl-1 -propanesulfonate,or mixtures thereof;preferably the monomers are acrylamide and cationic monomer selected from a group consisting of 2-(acryloyloxy)ethyl]trimethylammonium chloride, (3-acrylamidopropyl)trimethyl ammonium chloride, [2-(methacryloyloxy)ethyl]-trimethylammonium chloride, [3-( ...

Подробнее
Номер записи: 42
24-01-2019 дата публикации

PROCESS FOR PRODUCTION OF FILM COMPRISING MICROFIBRILLATED CELLULOSE

Номер: US20190024318A1
Автор: Backfolk Kaj, Heiskanen Isto, Lyytikäinen Katja, Saukkonen Esa
Принадлежит: STORA ENSO OYJ

The present invention relates to a new process for improving dewatering when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a polymer. 1. A process for the production of a film comprising the steps of:a. providing a suspension comprising microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is at least 60 weight-% based on the weight of solids of the suspension;b. adding nanoparticles to said suspension to provide a mixture of said microfibrillated cellulose and said nanoparticles, wherein the amount of nanoparticles added is at least 1.0 kg on dry basis per ton of dry solids of the suspension;c. providing said mixture to a porous wire to form a web; andd. dewatering said web to form an intermediate thin substrate or film.2. The process according to claim 1 , wherein said nanoparticles are silica claim 1 , nanosilica claim 1 , bentonite or nanobentonite particles.3. The process according to claim 1 , wherein said nanoparticles are anionic at neutral or alkaline pH.4. The process according to claim 1 , wherein a polymer is also added to the suspension.5. The process according to claim 4 , wherein the weight ratio of polymer to nanoparticles is in the range of from 1:3 to 1:20.6. The process according to claim 4 , wherein said polymer is selected from starch claim 4 , polyaminoamide-epichlorohydrin and cationic polyacryl amide or copolymer thereof.7. A film obtainable according to the process of .8. A product comprising a film according to .9. The process according to claim 4 , wherein the weight ratio of polymer to nanoparticles is in the range 1:5 to 1:12. The present invention relates to a new process for improving dewatering when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without ...

Подробнее
Номер записи: 43
23-01-2020 дата публикации

SANITARY TISSUE PRODUCTS COMPRISING NANOFILAMENTS

Номер: US20200024412A1
Автор: Ziegenbein Tobias
Принадлежит:

A soft sanitary tissue paper web having from about 2% to about 56.5% by weight of the soft sanitary tissue paper web of a softwood pulp fiber mixture, and from about 43.5% to about 99.9% by weight of the dry fiber basis of the soft sanitary tissue paper web of a hardwood pulp fiber mixture is disclosed. The softwood pulp fiber mixture has: 1) from about 0% to about 56.4% by weight of the dry fiber basis of softwood pulp fiber; 2) from about 0.05% to about 3.0% by weight of the dry fiber basis of strengthening additive. The hardwood pulp fiber mixture comprises: 1) from about 43.4% to about 99.4% by weight of the dry fiber basis of hardwood pulp fibers; and, 2) from about 0.05% to about 20.0% by weight of the dry fiber basis of cellulose nano-filaments. 1. A soft sanitary tissue paper web comprising: 1) from about 0% to about 56.4% by weight of the dry fiber basis of said soft sanitary tissue paper web of softwood pulp fiber;', '2) from about 0.05% to about 3.0% by weight of the dry fiber basis of said soft sanitary tissue paper web of strengthening additive; and,, 'a) from about 2% to about 56.5% by weight of said soft sanitary tissue paper web of a softwood pulp fiber mixture, said softwood pulp fiber mixture comprising 1) from about 43.4% to about 99.4% by weight of the dry fiber basis of said soft sanitary tissue paper web of hardwood pulp fibers; and,', '2) from about 0.05% to about 20.0% by weight of the dry fiber basis of said soft sanitary tissue paper web of cellulose nano-filaments., 'b) from about 43.5% to about 99.9% by weight of the dry fiber basis of said soft sanitary tissue paper web of a hardwood pulp fiber mixture, said hardwood pulp fiber mixture comprising2. The soft sanitary tissue paper web of further comprising up to about 20% by weight of the dry fiber basis of said soft sanitary tissue paper web of a product selected from the group consisting of fibrillated man-made cellulose claim 1 , non-wood natural fibers claim 1 , non-cellulosic fibers ...

Подробнее
Номер записи: 44
23-01-2020 дата публикации

ABSORBENT TOWEL PRODUCTS COMPRISING NANOFILAMENTS

Номер: US20200024413A1
Автор: Ziegenbein Tobias
Принадлежит:

An absorbent towel paper web having from about 45% to about 90% by weight of the dry fiber basis of the absorbent towel paper web of a softwood pulp fiber mixture 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 is disclosed. The softwood pulp fiber mixture has: 1) from about 20.0% to about 88.5% by weight of the dry fiber basis of softwood pulp fiber; and, 2) from about 0.05% to about 5.0% by weight of the dry fiber basis of strengthening additive. The hardwood pulp fiber mixture has: 1) from about 9.9% to about 54.9% by weight of the dry fiber basis of hardwood pulp fibers; and, 2) from about 0.05% to about 20.0% by weight of the dry fiber basis of cellulose nano-filaments. 1. An absorbent towel paper web comprising: 1) from about 20.0% to about 88.5% by weight of the dry fiber basis of said absorbent towel paper web of softwood pulp fiber; and,', '2) from about 0.05% to about 5.0% by weight of the dry fiber basis of said absorbent towel paper web of strengthening additive; and,, '(a) from about 45% to about 90% by weight of the dry fiber basis of said absorbent towel paper web of a softwood pulp fiber mixture, said softwood pulp fiber mixture comprising 1) from about 9.9% to about 54.9% by weight of the dry fiber basis of said absorbent towel paper web of hardwood pulp fibers; and,', '2) from about 0.05% to about 20.0% by weight of the dry fiber basis of said absorbent towel paper web of cellulose nano-filaments., 'b) from about 10% to about 55% by weight of the dry fiber basis of said absorbent towel paper web of a hardwood pulp fiber mixture, said hardwood pulp fiber mixture comprising2. The absorbent towel paper web of further comprising up to about 20% by weight of the dry fiber basis of said absorbent towel paper web of a product selected from the group consisting of fibrillated man-made cellulose claim 1 , non-wood natural fibers claim 1 , non-cellulosic fibers claim 1 , and ...

Подробнее
Номер записи: 45
29-01-2015 дата публикации

METHOD FOR PRODUCING ANION-MODIFIED CELLULOSE NANOFIBER DISPERSION

Номер: US20150027648A1
Автор: Fukazawa Masahiko, Iimori Takeshi, Miyawaki Shoichi, Nakayama Takeshi, TAMURA Naoyuki, Tsuji Shiho
Принадлежит:

Provided is a method which comprises a process of having an anion-modified cellulose nanofiber dispersion contain monovalent or divalent metal ions. Consequently, the fluidity of an anion-modified cellulose nanofiber dispersion obtained thereby is improved. 1. A method for producing an anion-modified cellulose nanofiber dispersion , comprising the steps of:(A) preparing anion-modified cellulose; and(B) defibrating the anion-modified cellulose into nanofibers to prepare the anion-modified cellulose nanofiber dispersion,the method further comprising, after the step (B) or between the steps (A) and (B), the step of adding a compound containing a monovalent or divalent metal ion, wherein an amount of the added metal ion is 0.3 to 10% (w/w) based on anion-modified cellulose nanofibers contained in a final anion-modified cellulose nanofiber dispersion.2. The method according to claim 1 , wherein the step of preparing anion-modified cellulose comprises introducing carboxymethyl groups into cellulose and a degree of substitution of carboxymethyl group per glucose unit of the anion-modified cellulose is 0.01 to 0.50.3. The method according to claim 1 , wherein the step of preparing anion-modified cellulose comprises introducing carboxyl groups into cellulose and an amount of the introduced carboxyl groups is 1.0 to 2.0 mmol/g based on a bone dry mass of the anion-modified cellulose.4. The method according to claim 1 , wherein the step of adding a compound containing a monovalent or divalent metal ion comprises the steps of:oxidizing a starting cellulosic material with an oxidizing agent in the presence of an N-oxyl compound and a compound selected from the group consisting of bromides, iodides and mixtures thereof to introduce carboxyl groups into cellulose to prepare anion-modified cellulose;subjecting the anion-modified cellulose to alkaline hydrolysis using an oxidizing agent or a reducing agent under alkaline conditions;subjecting a reaction mixture from the alkaline ...

Подробнее
Номер записи: 46
23-01-2020 дата публикации

METHODS AND APPARATUS FOR MANUFACTURING FIBER-BASED MEAT CONTAINERS

Номер: US20200024806A1
Автор: Chung Yoke Dou, Moore Brandon Michael, Zhang Yiyun
Принадлежит:

Methods and apparatus for manufacturing a microwavable food container include: forming a wire mesh over a mold comprising a mirror image of the microwavable food container; immersing the wire mesh in a fiber-based slurry bath; drawing a vacuum across the wire mesh to cause fiber particles to accumulate at the wire mesh surface; and removing the wire mesh including the accumulated fiber particles from the slurry bath; wherein the slurry comprises a moisture barrier, an oil barrier, and a vapor barrier. 1. A method of manufacturing a microwavable food container , comprising:forming a wire mesh over a mold comprising a mirror image of the microwavable food container;immersing the wire mesh in a fiber-based slurry bath;drawing a vacuum across the wire mesh to cause fiber particles to accumulate at the wire mesh surface; andremoving the wire mesh including the accumulated fiber particles from the slurry bath;wherein the slurry comprises a moisture barrier, an oil barrier, and a vapor barrier.2. The method of claim 1 , wherein the slurry further comprises a retention aid.3. The method of claim 1 , wherein:the moisture barrier comprises in the range of 0.5%-10% of the slurry weight; andthe oil barrier comprises in the range of 0.5%-10% of the slurry weight.4. The method of claim 2 , wherein the moisture barrier is in the range of about 1.5%-4% claim 2 , the oil barrier is in the range of about 1%-4% claim 2 , and the retention aid is in the range of about 0.1%-0.5%.5. The method of claim 1 , wherein the moisture barrier comprises alkyltene dimer (AKD).6. The method of claim 1 , wherein the moisture barrier comprises alkyltene dimer (AKD) in the range of about 3.5%.7. The method of claim 1 , wherein the oil barrier comprises a water based emulsion.8. The method of claim 7 , wherein the water based emulsion comprises fluorine containing at least one of a fluorocarbon resin and a fluorine polymer.9. The method of claim 1 , wherein the oil barrier comprises TG 8111.10. The ...

Подробнее
Номер записи: 47
01-02-2018 дата публикации

Non-tobacco non-thc industrial hemp fiber smoking article

Номер: US20180027869A1
Автор: Keith Scott
Принадлежит: New Image Global Inc

The present invention is a non-tobacco smoking article for consumers to use to make their own herbal smoking articles. It is a non-THC containing industrial hemp product, made with industrial hemp, cellulose and other ingredients. The product is an herbal, non-nicotine and non-hallucinogenic alternative to tobacco wraps and cigarette rolling papers.

Подробнее
Номер записи: 48
17-02-2022 дата публикации

MOIST WIPE HAVING ENHANCED DISPERSIBILITY

Номер: US20220047468A1
Автор: Auriemma Nilgun, Hurley Jeffrey Scott, Iarocci John Matthew, Kurtz Kelly Maureen, Love Arthur Ray, Suares Alan Joseph, YAMADA Kikuo
Принадлежит:

The present disclosure relates to a moist toilet tissue, cleaning wipe or personal wipe having improved dispersibility. The moist toilet tissues, cleaning wipes and personal wipes are sufficiently strong during use and disperse sufficiently quickly under real world conditions to be flushable without creating potential problems for sanitation systems. 1. A moist wipe comprising:a. a homogenous fibrous material comprising one or more cellulosic fibers at about 50 to about 99% w/w and one or more water soluble binders; andb. a liquid component comprisingi. about 74% w/w of water,ii. about 15% w/w of dipropylene glycol,iii. about 5% w/w of glycereth 26, andiv. about 4% w/w of calcium chloride.2. The moist wipe of claim 1 , wherein the liquid component further comprises a chelating agent claim 1 , an emulsifier claim 1 , an emollient claim 1 , a humectant claim 1 , a pH adjusting agent and an odor neutralizing agent3. The moist wipe of claim 1 , wherein the liquid component further comprises a fragrance.4. The moist wipe of claim 1 , wherein the liquid component further comprises magnesium aluminum silicate claim 1 , xanthan gum claim 1 , cornstarch claim 1 , silica claim 1 , and any combination thereof.5. A moist wipe comprising:a. a homogenous fibrous material comprising one or more cellulosic fibers at about 50 to about 99% w/w and one or more water soluble binders; and i. about 58 to about 79% w/w of water,', 'ii. about 0 to about 10% w/w of dipropylene glycol,', 'iii. about 0 to about 10% w/w of glycereth 26,', 'iv. about 0 to about 4% w/w of calcium chloride, and', 'vi. about 5 to about 20% w/w of ethanol., 'b. a liquid component comprising'}6. The moist wipe claim 1 , cleaning wipe or personal wipe of claim 1 , wherein the wipe exhibits a machine direction wet tensile strength greater or equal to about 150 g/inch and a cross direction wet tensile strength of greater than about 75 g/inch.7. The moist wipe claim 6 , cleaning wipe or personal wipe of claim 6 , ...

Подробнее
Номер записи: 49
04-02-2016 дата публикации

PROCESS FOR PRODUCTION OF PAPER OR BOARD

Номер: US20160032530A1
Автор: VIRTANEN Mikko
Принадлежит:

The invention relates to a process for production of paper or board comprising providing a stock comprising cellulose fibers, adding a mixture comprising microfibrillated cellulose and a strength additive to the stock, adding a microparticle to the stock after the addition of said mixture, dewatering the stock on a wire to form a web, and drying the web. 1. A process for the production of paper or board comprising the steps of:a) providing a stock comprising cellulose fibers,b) adding a mixture comprising microfibrillated cellulose (MFC) and a strength additive to the stock,c) adding a microparticle to the stock after the addition of said mixture in step b),d) dewatering the stock on a wire to form a web, ande) drying the web.2. The process of wherein the strength additive comprises starch claim 1 , a synthetic polymer claim 1 , chitosan claim 1 , guar gum claim 1 , carboxymethyl cellulose (CMC) or a mixture thereof.3. The process of wherein the synthetic polymer comprises cationic polyacrylamide (C-PAM) claim 2 , anionic polyacrylamide (A-PAM) claim 2 , glyoxylated polyacrylamide (G-PAM) claim 2 , amphoteric polyacrylamide claim 2 , polydiallyldimethylammonium chloride (poly-DADMAC) claim 2 , polyacrylic amide (PAAE) claim 2 , polyvinyl amine (PVAm) claim 2 , polyethylene oxide (PEO) claim 2 , polyethyleneimine (PEI) or a mixture of two or more of these polymers.4. The process of wherein an average molecular weight of the synthetic polymer is in range of 100 000-20 000 000 g/mol.5. The process of wherein the microparticle comprises an inorganic colloidal microparticle.6. The process of wherein the microparticle is a silica-based microparticle and it is added in an amount of 0.1-4 kg claim 5 , preferably 0.2-2 kg claim 5 , more preferably 0.3-1.5 kg claim 5 , still more preferably 0.33-1.5 kg claim 5 , even more preferably 0.33-1 kg claim 5 , most preferably 0.33-0.8 kg on dry basis per ton of dry solids of the stock.7. The process of wherein the microparticle is a ...

Подробнее
Номер записи: 50
01-02-2018 дата публикации

Methods and Apparatus For Manufacturing Fiber-Based Produce Containers

Номер: US20180030658A1
Автор: Chung Yoke Dou, Moore Brandon Michael, Zhang Yiyun
Принадлежит:

Methods and apparatus for manufacturing vacuum forming a produce container using a fiber-based slurry. The slurry includes a moisture barrier comprising alkylketene dimer in the range of about 4% by weight, and a cationic liquid starch component in the range of 1%-7% by weight. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15.16. A slurry for use in vacuum forming a fiber-based produce container , comprising:a moisture barrier comprising AKD in the range of about 4% by weight; anda cationic liquid starch component in the range of 1%-7% by weight.17. The slurry of claim 16 , comprising a fiber base of at least one of: softwood (SW); bagasse; bamboo; old corrugated containers (OCC); and newsprint (NP).18. The slurry of comprising a fiber base including old corrugated containers (OCC) in the range of about 70% and newsprint (NP) in the range of about 30%.19. A vacuum formed food container made from a slurry comprising:a moisture barrier component comprising long chain diketenes in the range of about 4% by weight;a cationic liquid starch component in the range of 1%-7% by weight; andat least one geometric feature for enhancing structural rigidity.20. The food container of claim 19 , wherein the geometric feature comprises a horizontally extending shelf disposed in the range of about 30%-50% below a top of a container side wall.21. The slurry of claim 16 , wherein the moisture barrier comprises alkyltene dimer (AKD) 80.22. The slurry of claim 16 , wherein the moisture barrier comprises long chain diketenes.23. The slurry of claim 16 , further comprising a coloring agent comprising one of a cationic dye and a fiber reactive dye.24. The slurry of claim 16 , further comprising a dye absorption agent comprising one of salt and soda ash.25. The slurry of claim 16 , wherein the starch component comprises one of Topcat L98 claim 16 , ...

Подробнее
Номер записи: 51
01-02-2018 дата публикации

Method for Manufacturing Microwavable Food Containers

Номер: US20180030660A1
Автор: Brandon Michael Moore, Yiyun Zhang, Yoke Dou CHUNG
Принадлежит: Footprint International LLC

Methods and apparatus for manufacturing vacuum forming a produce container using a fiber-based slurry. The slurry includes a moisture barrier comprising alkylketene dimer in the range of about 4% by weight, and a cationic liquid starch component in the range of 1%-7% by weight.

Подробнее
Номер записи: 52
04-02-2021 дата публикации

Wrapping Paper For A Smoking Article

Номер: US20210030055A1
Автор: Hiroyoshi Ono
Принадлежит: JT INTERNATIONAL SA

A wrapping paper for a smoking article includes a base paper, wherein the base paper includes a plurality of burn-suppressing regions that are provided apart from each other on one surface of the wrapping paper, wherein the ratio of diffusion capacity between the burn-suppressing regions and the base paper is in the range of 5% to 35%.

Подробнее
Номер записи: 53
17-02-2022 дата публикации

REINFORCED PAPER FOR PACKAGING OF MEDICAL DEVICES

Номер: US20220049427A1
Автор: Turner Paul, Wahlstrom Lars
Принадлежит:

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/m. 1. A paper for packaging of medical devices comprising 5-25 wt. % (dry) synthetic fibers comprising polyester and 2.0-12.0 wt. % (dry) of a synthetic latex binder or 1.0-5.0 wt. % (dry) of a starch binder , wherein the length of the synthetic fibers is 8-14 mm and the thickness of the synthetic fibers is 5.5-9.0 dtex and wherein the paper has a grammage according to ISO 536:2012 of 70-110 g/m.2. The paper according to claim 1 , which is a kraft paper.3. The paper according to claim 1 , which has a grammage according to ISO 536:2012 of 75-105 g/m claim 1 , such as 75-99 g/m.4. The paper according to claim 1 , wherein the Bendtsen Porosity is measured according to ISO 5636-3:2013 is at least 250 ml/min.5. The paper according to claim 4 , wherein the Bendtsen Porosity is at least 400 ml/min.6. The paper according to claim 1 , wherein the amount of synthetic fibers is 8-15 wt. % (dry).7. The paper according to claim 1 , wherein the length of the synthetic fibers is 10-14 mm.8. The paper according to claim 1 , wherein the length of the synthetic fibers is 10-12 mm.9. The paper according to claim 1 , wherein a sheath portion of the synthetic fibers comprises polyester.10. The paper according to claim 1 , wherein the synthetic fibers are composed of polyester only.11. The paper according to claim 1 , wherein the amount of synthetic latex binder is 3.0-10.0 wt. % (dry).12. The paper according to claim 1 , wherein the geometric bending resistance index is 60-160 Nm/kg claim 1 , which bending resistance is measured according to ISO 2493-1:2010 using a bending length of 10 mm and a ...

Подробнее
Номер записи: 54
17-02-2022 дата публикации

Moisture/oil-resistant fiber/starch composite materials

Номер: US20220049428A1
Автор: Gregory M. Glenn, Randal L. Shogren, Xing Jin
Принадлежит: US Department of Agriculture USDA, World Centric

The invention relates to uncoated, fiber/starch composite materials manufactured without the use of fluorochemicals or additional binders that offer superior oil and grease resistance properties. Addition of an internal sizing agent in the preparation of the fiber/starch composite materials results in superior hot water and cold water resistance properties. The fiber/starch composite materials may be used for the manufacture of food service containers. The invention also relates to methods of preparation of the fiber/starch composite materials.

Подробнее
Номер записи: 55
17-02-2022 дата публикации

Fiber-Based Food Containers

Номер: US20220049429A1
Автор: Chung Yoke Dou, Moore Brandon Michael, Zhang Yiyun
Принадлежит:

Methods and apparatus for manufacturing a microwavable food container include: forming a wire mesh over a mold comprising a mirror image of the microwavable food container; immersing the wire mesh in a fiber-based slurry bath; drawing a vacuum across the wire mesh to cause fiber particles to accumulate at the wire mesh surface; and removing the wire mesh including the accumulated fiber particles from the slurry bath; wherein the slurry comprises one or more of a moisture barrier, an oil barrier, and a vapor barrier. 1. A food container obtained by:forming a mesh in the shape of a mold corresponding to the shape of the food container;immersing the mesh in a fiber-based slurry;drawing a vacuum across the mesh to cause fiber particles to accumulate at the mesh surface; andremoving the mesh and the accumulated fiber particles from the slurry bath;wherein the slurry comprises a moisture barrier component in the range of 1%-10% by weight.2. The food container of claim 1 , wherein the slurry comprises a moisture barrier component in the range of about 4%.3. The food container of claim 1 , wherein the moisture barrier component comprises alkyl ketene dimer (AKD).4. The food container of claim 1 , wherein the moisture barrier component comprises alkyl ketene dimer (AKD) 80.5. The food container of claim 1 , wherein the moisture barrier component comprises long chain diketenes.6. The food container of claim 1 , wherein the slurry comprises a coloring agent comprising one of a cationic dye and a fiber reactive dye.7. The food container of claim 1 , wherein the slurry further comprises a dye absorption agent comprising one of salt and soda ash.8. The food container of claim 1 , further comprising processing the mesh having the accumulated fiber particles in one of a wet or dry process.9. The food container of claim 1 , wherein the slurry further comprises a starch component in the range of 1%-7% by weight.10. The food container of claim 9 , wherein the starch component ...

Подробнее
Номер записи: 56
17-02-2022 дата публикации

Fiber-Based Microwave Bowls with Selective Spray Coating

Номер: US20220049431A1
Автор: Chung Yoke Dou, Gonzalez Ric, Lucero Steve, Wang Min, Zhang Yiyun
Принадлежит:

Methods and apparatus for vacuum forming and subsequently applying topical coatings fiber-based food containers. The slurry includes one or more of an embedded moisture barrier, vapor barrier, and oil barrier, and the topical coating comprises one or more of a vapor barrier, a moisture barrier, an oil barrier, and an oxygen barrier. For food containers having deep sidewalls, a spray coating system includes a first nozzle for applying a full cone spray pattern to the bottom surface of the container, and a second nozzle for applying a hollow cone spray pattern to the inside surfaces of the side walls. 1. A microwaveable bowl of the type characterized by a substantially flat , circular , bottom region bounded by a circumferential sidewall obtained by:providing a wire mesh mold substantially the same as a desired shape of the bowl;preparing an aqueous fiber based slurry comprising at least one of hardwood virgin fiber and softwood virgin fiber;adding an embedded moisture barrier to the slurry;immersing the mold in the slurry;drawing a vacuum across the mold within the slurry until a desired thickness of fiber particles accumulates at a surface of the mold;removing the accumulated particles from the mold;drying and pressing the accumulated particles in a press to thereby form the bowl;transferring the bowl from the press to a coating station; andapplying, at the coating station, a topical oil barrier layer to at least a portion of the bowl.2. The microwaveable bowl of claim 1 , wherein the topical oil barrier layer is applied by a spray system and conveyor configured to move the bowl along a direction of travel underneath the spray system.3. The microwaveable bowl of claim 2 , wherein the spray system comprises:a first nozzle configured to discharge a full cone spray pattern onto the bottom region of the bowl; anda second nozzle configured to discharge a hollow cone spray pattern onto the inside surface of the circumferential sidewall.4. The microwaveable bowl of claim 1 ...

Подробнее
Номер записи: 57
30-01-2020 дата публикации

MICROFIBRILLATED CELLULOSE FOAMS

Номер: US20200032454A1
Автор: Soidinsalo Otto
Принадлежит:

The present invention relates to porous foam materials comprising or essentially consisting of microfibrillated cellulose (“MFC”). These porous foam materials are light weight and can be tailored to specific uses. The present invention also relates to a process for making porous foam materials according to the present invention. 1. Method for making porous , microfibrillated cellulose based materials , said method comprising at least the following steps:(i) mixing a predetermined amount of microfibrillated cellulose in a solvent, preferably in water, together with a predetermined amount of at least one water soluble salt, so that a homogenous mixture results;(ii) bringing the mixture of (i) into the desired shape and drying this mixture in an oven until dry, preferably at 80° C. or more, more preferably at 105° C. or more (first drying step);(iii) after completion of step (ii), immersing the dried material of step (ii) in a solvent, preferably in water, thus leaching out at least 95%, preferably 99.5% of the salt added in step (i);(iv) after completion of step (iii), drying this mixture from step (iii) in an oven until dry, preferably at 80° C. or more, more preferably at 105° C. or more (second drying step), resulting in a porous salt-free material.2. Method according to claim 1 , wherein the salt is characterized in that the solubility of said salt in water changes by less than 25% claim 1 , preferably less than 15% claim 1 , further preferably less than 10% when changing the temperature from 20° C. to 100° C. claim 1 , and/or wherein the water soluble salt has a solubility in water claim 1 , at 20° C. claim 1 , of from 15 g/100 ml to 100 g/100 ml claim 1 , preferably from 25 g/100 ml to 75 g/100 ml.3. Method according to claim 1 , wherein the overall method does not comprise a step of freeze-drying and/or wherein the overall method does not comprise the use of any solvent other than water claim 1 , nor the use of any other chemical compound that functions as a ...

Подробнее
Номер записи: 58
30-01-2020 дата публикации

Fibrous structures comprising acidic cellulosic fibers and methods of manufacturing the same

Номер: US20200032456A1
Автор: David John Paulson, Kenneth John Zwick, Mike Thomas Goulet, Richard Louis Underhill
Принадлежит: Kimberly Clark Worldwide Inc

The invention relates to fibrous structures having desirable physical properties, such as good tensile strength, low stiffness and high bulk, manufactured using a fiber furnish comprising cellulosic fibers having a pH of 5.0 or less and at least one strength resin. Not only do structures prepared with acidic fibers have desirable physical properties, they may also be manufactured in an energy efficient manner. To achieve the greatest energy savings it is generally desirable that acidic fibers not be subjected to mechanical treatment, such as by refining, prior to forming the fiber into a fibrous structure. Further, it may be desirable to subject the remainder of the fiber furnish to a minimal degree of mechanical treatment, such as by refining, so as to produce a furnish having a freeness greater than about 550 mL.

Подробнее
Номер записи: 59
30-01-2020 дата публикации

Tissue paper

Номер: US20200032459A1
Автор: Shuta YASUI
Принадлежит: Daio Paper Corp

To provide a moisturizing tissue paper having excellent softness, smoothness, and strength. The problem can be solved by providing a two-ply tissue paper containing a moisturizing agent, in which a basis weight per ply is 10 to 20 g/m 2 , a two-ply paper thickness is 130 to 200 and all of a polyol, hyaluronic acid, a fatty acid ester-based compound, and a fatty acid amide-based compound are contained.

Подробнее
Номер записи: 60
08-02-2018 дата публикации

FABRIC CARE COMPOSITION COMPRISING METATHESIZED UNSATURATED POLYOL ESTERS

Номер: US20180037848A1
Автор: Kemper Joseph Jay, Motlagh Safa, Panandiker Rajan Keshav, Scheibel Jeffrey John, Schubert Beth Ann, Strife Robert John, Zannoni Luke Andrew
Принадлежит:

The present invention relates to fabric cleaning and/or treatment compositions as well as methods of making and using same. Such fabric cleaning and/or treatment compositions contain species of metathesized unsaturated polyol esters that have the correct rheology. Thus, such species of metathesized unsaturated polyol esters provide unexpectedly improved softenening performance and formulability. 1. A composition comprising , (i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons;', '(ii) an oligomer index from greater than 0 to 1;', '(iii) an iodine value of from about 30 to about 200; and, 'a) a metathesized unsaturated polyol ester, said metathesized unsaturated polyol ester having one or more of the following propertiesb) a material selected from the group consisting of a fabric softener active, a fabric care benefit agent, an anionic surfactant scavenger, a delivery enhancing agent, a perfume, a perfume delivery system, a structurant, a soil dispersing polymer, a brightener, a hueing dye, dye transfer inhibiting agent, builder, surfactant, an enzyme and mixtures thereof, and optionally a carrier.2. A composition according to claim 1 , said metathesized unsaturated polyol ester having a weight average molecular weight of from about 5 claim 1 ,000 Daltons to about 50 claim 1 ,000 Daltons.3. A composition according to wherein said metathesized unsaturated polyol ester has an iodine value of from about 30 to about 200.4. A composition comprising: (i) a free hydrocarbon content, based on total weight of metathesized unsaturated polyol ester of from about 0% to about 5%;', '(ii) an oligomer index from greater than 0 to 1;', '(iii) an iodine value of from about 8 to about 200; and, 'a) a metathesized unsaturated polyol ester, said metathesized unsaturated polyol ester having a weight average molecular weight of from about 2,000 Daltons to about 50,000 Daltons; and one or more of the following propertiesb) a material selected from the ...

Подробнее
Номер записи: 61
12-02-2015 дата публикации

METHOD FOR PRODUCING LIGNIN DEGRADATION PRODUCT

Номер: US20150041083A1
Автор: Maruno Yuuji, Yoshikawa Hayato
Принадлежит:

The present invention relates to [1] a process for producing a lignin degradation product, including the following steps (1) to (3), and [2] a lignin degradation product produced by the process as described in the above [1]: Step (1): subjecting a lignocellulose raw material to enzymatic saccharification treatment to obtain a saccharification residue; Step (2): subjecting the saccharification residue obtained in the step (1) to heat treatment in a mixed solvent containing water and an organic solvent having a solubility in 20° C. water of not less than 90 g/L to obtain a heat treatment solution containing the lignin degradation product; and Step (3): subjecting the heat treatment solution obtained in the step (2) to solid-liquid separation to remove insoluble components from the heat treatment solution, thereby obtaining the lignin degradation product. The present invention provides a process for producing a novel lignin degradation product having a low degree of denaturation, a high solubility in solvents and a high versatility with a high yield. 1. A process for producing a lignin degradation product , comprising the following steps (1) to (3):Step (1): subjecting a lignocellulose raw material to enzymatic saccharification treatment to obtain a saccharification residue;Step (2): subjecting the saccharification residue obtained in the step (1) to heat treatment in a mixed solvent containing water and an organic solvent having a solubility in 20° C. water of not less than 90 g/L to obtain a heat treatment solution containing the lignin degradation product; andStep (3): subjecting the heat treatment solution obtained in the step (2) to solid-liquid separation to remove insoluble components from the heat treatment solution, thereby obtaining the lignin degradation product.2. The process for producing a lignin degradation product according to claim 1 , wherein a ratio of the organic solvent to water [organic solvent/water] (mass ratio) in the mixed solvent is from 90/ ...

Подробнее
Номер записи: 62
12-02-2015 дата публикации

USE OF NANOCRYSTALINE CELLULOSE AND POLYMER GRAFTED NANOCRYSTALINE CELLULOSE FOR INCREASING RETENTION, WET STRENGTH, AND DRY STRENGTH IN PAPERMAKING PROCESS

Номер: US20150041091A1
Автор: Castro David J., Cheng Weiguo, Karnati Rangarani, Liu Mei, Wilson Shawnee M., Zhang Zhiyi
Принадлежит: ECOLAB USA INC.

The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates. 1. A method of improving a paper substrate used in a papermaking process , the method comprising the steps of:providing an NCC-polymer, the NCC-polymer comprises a polymer chain of monomer units, the polymer chain is bonded to an NCC core by an acrylamide monomer unit of the polymer chain, the polymer chain comprises a plurality of acrylamide and acrylic acid monomer units, andadding the NCC-polymer to a paper substrate in a papermaking processwherein the polymer chain has a length of between 100-500 nm.2. The method of in which the NCC-polymer is added to the paper substrate during the dry end of a papermaking process.3. The method of in which the NCC-polymer is added to the paper substrate during the wet end of a papermaking process.4. The method of wherein the polymer chain further comprises one or more monomers selected from the list consisting of:vinyl acetate, acrylic acid, sodium acrylate, ammonium acrylate, methyl acrylate, acrylamide, acrylonitrile, N,N-dimethyl acrylamide, 2-acrylamido-2-methylpropane-1-sulfonic acid, sodium 2-acrylamido-2-methylpropane-1-sulfonate, 3-acrylamidopropyl-trimethyl-ammonium chloride, diallyldimethylammonium chloride, 2-(dimethylamino)ethyl acrylate, 2-(acryloyloxy)-N,N,N-trimethylethanaminium chloride, N,N-dimethylaminoethyl acrylate benzyl chloride quaternary salt, 2-(acryloyloxy)-N,N,N-trimethylethanaminium methyl sulfate, 2-(dimethylamino)ethyl methacrylate, 2-(methacryloyloxy)-N,N,N-trimethylethanaminium chloride, 3-(dimethylamino)propyl methacrylamide, 2-(methacryloyloxy)-N,N,N-trimethylethanaminium methyl sulfate, methacrylic acid, methacrylic anhydride, methyl methacrylate, methacryloyloxy ethyl ...

Подробнее
Номер записи: 63
06-02-2020 дата публикации

SHEET MATERIAL COMPRISING FIBER AND NANO-MICROSCALE ORGANIC FIBRILLATED FILLER AND METHOD OF PRODUCING SAID SHEET MATERIAL

Номер: US20200040531A1
Автор: ARPAWASIN Saowanee, LEERAPONGNUN Prakan, PONGPAIBOON Suebthip, PONGTONGCHAROEN Chairat, Thitiwutthisakul Kasinee
Принадлежит: SCG Packaging Public Company Limited

This invention relates to a sheet material comprising fiber and nano-microscale organic fibrillated filler, wherein the nano-microscale organic fibrillated filler comprises microfibrillated cellulose and starch granule in such a way that the microfibrillated cellulose is dispersed with starch granule, and the nano-microscale organic fibrillated filler has starch granule at least 15 wt %. Besides, this invention also relates to a method of producing said sheet material comprising fiber and nano-microscale organic filler, wherein the method comprises the steps of (i) preparing pulp suspension, (ii) preparing nano-microscale organic fibrillated filler, (iii) adding the nano-microscale organic fibrillated filler into the pulp suspension, (iv) forming sheet material by pressing, and (v) drying the sheet material, wherein the preparation step of nano-microscale organic fibrillated filler provides the nano-microscale organic fibrillated filler comprising microfibrillated cellulose and starch granule in such a way that the microfibrillated cellulose is dispersed with starch granule. 1. A sheet material comprising fiber and nano-microscale organic fibrillated filler , wherein the nano-microscale organic fibrillated filler comprises microfibrillated cellulose and starch granule in such a way that the microfibrillated cellulose is dispersed with starch granule , and the nano-microscale organic fibrillated filler has starch ganule at least 15 wt %.2. The sheet material according to claim 1 , wherein the nano-microscale organic fibrillated filler has starch granule preferably ranging from 15 wt % to 95 wt % claim 1 , more preferably from 40 wt % to 90 wt %.3. The sheet material according to claim 1 , wherein the nano-microscale organic fibrillated filler has microfibrillated cellulose ranging from 5 wt % to 85 wt % claim 1 , preferably from 10 wt % to 60 wt %.4. The sheet material according to any one of to claim 1 , wherein the nano-microscale organic fibrillated filler has an ...

Подробнее
Номер записи: 64
06-02-2020 дата публикации

SOFT, LOW LINT, THROUGH AIR DRIED TISSUE AND METHOD OF FORMING THE SAME

Номер: US20200040532A1
Автор: II James E., IV Byrd Tyler, MILLER, Sealey
Принадлежит:

A multi-ply through air dried structured tissue having a bulk softness of less than 10 TS7 and a lint value of 5.0 or less. Each ply of the tissue has a first exterior layer that includes a wet end temporary wet strength additive in an amount of approximately 0.25 kg/ton and a wet end dry strength additive in an amount of approximately 0.25 kg/ton, an interior layer that includes a first wet end additive comprising an ionic surfactant, and a second wet end additive comprising a non-ionic surfactant, and a second exterior layer. 1. A method for forming tissue product comprising:forming a structured tissue web on a papermaking machine;transferring the structured tissue web to a drying drum with a hot air impingement hood blowing heated air onto the drying drum;creping the structured tissue web off the drum with a creping blade to form tissue paper; andlaminating at least two plies of the tissue paper to form the tissue product, wherein the tissue product has a lint value of less than 5.5 and a bulk softness TS7 of 10 or less, and the tissue product is substantially free of any surface deposited softener agents or lotions.2. The method of claim 1 , wherein the air is heated up to 450° C.3. The method of claim 1 , further comprising the step of taking the tissue paper up on a reel drum claim 1 , wherein a speed differential between the drying drum and the reel drum is 10 percent.4. The method of claim 1 , wherein the tissue product has a softness value of 91.0 HF or greater.5. The method of claim 1 , wherein the tissue paper comprises first and second exterior layers and an interior layer claim 1 , and the exterior layers are substantially free of any surface deposited softener agents or lotions.6. The method of claim 5 , wherein the first exterior layer comprises a wet end temporary wet strength additive in an amount of approximately 0.25 kg/ton and a wet end dry strength additive in an amount of approximately 0.25 kg/ton claim 5 , and the interior layer comprises a ...

Подробнее
Номер записи: 65
19-02-2015 дата публикации

Paper substrate having enhanced print density

Номер: US20150050434A1
Автор: David B. Shelmidine, Jay C. Song, Kapil M. Singh, Michael F. Koenig, Sen Yang, Yan C. Huang
Принадлежит: International Paper Co

The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substrate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition.

Подробнее
Номер записи: 66
14-02-2019 дата публикации

BOARD WITH IMPROVED COMPRESSION STRENGTH

Номер: US20190047273A1
Автор: Heiskanen Isto, Kankkunen Jukka, Lampainen Seppo
Принадлежит: STORA ENSO OYJ

A corrugated fiberboard comprising cellulosic fibers, wherein said corrugated fiberboard has at least one of a geometrical tensile index in the range of from 32 to 65 Nm/g, a fracture toughness index in the range of from 4 to 24 Jm/kg, and a ring crush index in the range of from 5 to 10 Nm/g5 measured at relative humidity of 85% RH; wherein the cellulosic fibers comprises a mixture of less refined fibers having a Schopper-Riegler (SR) value in the range of 15 to 28 and microfibrillated cellulose fibers, wherein mixture comprises said microfibrillated cellulose in a range of from 1% to 5% by weight of the dry content of the cellulosic fibers. 1. A corrugated fiberboard , comprising cellulosic fibers , wherein said corrugated fiberboard has at least one of a geometrical tensile index in the range of from 32 to 65 Nm/g , a fracture toughness index in the range of from 14 to 24 Jm/kg , and a ring crush index in the range of from 5 to 10 Nm/g measured at relative humidity of 85% RH;whereinthe cellulosic fibers comprise a mixture of less refined fibers having a Schopper-Riegler (SR) value in the range of 15 to 28 and microfibrillated cellulose fibers, wherein mixture comprises said microfibrillated cellulose in a range of from 1% to 5% by weight of the dry content of the cellulosic fibers.2. The corrugated fiberboard as claimed in claim 1 , wherein the corrugated fiberboard comprises a hydrophobic sizing additive.3. The corrugated fiberboard as claimed in claim 2 , wherein the hydrophobic sizing additive is any one of alkylketene dimer (AKD) claim 2 , succinic anhydrides (ASA) claim 2 , rosin sizes claim 2 , and styrene maleic anhydride (SMA) claim 2 , or emulsions or modifications or mixtures thereof.4. The corrugated fiberboard of claim 1 , wherein the corrugated fiberboard has a basis weight in the range of 250 to 450 g/m claim 1 , and a thickness in the range of 400 to 500 μm.5. The corrugated fiberboard as claimed in having fraction toughness index measured as Jm/kg ...

Подробнее
Номер записи: 67
14-02-2019 дата публикации

A system and method for manufacture of paper, board or the like

Номер: US20190048529A1
Автор: Hietaniemi Matti, Karppi Asko
Принадлежит: KEMIRA OYJ

Drainage and press dewatering system for manufacture of paper, board or the like, comprising (a) amphoteric polyacrylamide, which is a copolymer obtained by polymerizing (meth)acrylamide and 1-80 mol-% of cationic monomers and/or 0.1-70 mol-% of anionic monomers, the polyacrylamide having an intrinsic viscosity in the range of 6-38 dl/g, (b) inorganic microparticles of siliceous material, such as colloidal silica or bentonite, and (c) a high-charged cationic coagulant having a charge density over 5 meq/g and preferably over 6 meq/g determined at pH 6 and selected from aluminium based coagulants, organic polymers and mixtures thereof. 1. Drainage and press dewatering system for manufacture of paper , board or the like , comprising:(a) an amphoteric polyacrylamide, which is a copolymer obtained by polymerizing (meth)acrylamide and 1-80 mol-% of cationic monomers and 0.1-70 mol-% of anionic monomers, the polyacrylamide having an intrinsic viscosity in the range of 6-38 dl/g determined in 1 M NaCl at 25° C.,(b) inorganic microparticles of siliceous material, such as colloidal silica or bentonite, and(c) a high-charged cationic coagulant having a charge density over 5 meq/g and preferably over 6 meq/g determined at pH 6 and selected from aluminium based coagulants, organic polymers and mixtures thereof.2. The system according to claim 1 , wherein the amphoteric polyacrylamide has the intrinsic viscosity preferably in the range of 6-20 dl/g and more preferably 7-15 dl/g claim 1 , determined in 1 M NaCl at 25° C.3. The system according to claim 1 , wherein the amphoteric polyacrylamide has a cationic net charge claim 1 , determined by Mütek PCD at pH 2.7.4. The system according to claim 1 , characterized in that wherein a cationic charge density of the amphoteric polyacrylamide is in the range of 0.2-4 meq/g claim 1 , preferably 0.35-3 meq/g claim 1 , more preferably 0.5-2 meq/g claim 1 , and even more preferably 0.6-1.6 meq/g claim 1 , determined by Mütek PCD at pH 2.7.5. ...

Подробнее
Номер записи: 68
25-02-2021 дата публикации

POLYMER COMPOSITIONS AND COATINGS

Номер: US20210054225A1
Автор: Catchmark Jeffrey M., Plucinski Adam Ross
Принадлежит:

This document provides polymer compositions (e.g., biopolymer compositions) and coatings. For example, methods and materials related to polymer compositions (e.g., biopolymer compositions) and coatings as well as methods and materials for making and using such compositions (e.g., biopolymer compositions) and coatings are provided. 1. A dehydrated coating composition comprising one or more cationic polymers and one or more anionic polymers , wherein said cationic polymers and said anionic polymers were combined in a polar solution and vigorously blended such that the viscosity or particle size of the mixed polymers was reduced after blending.2. The composition of claim 1 , wherein said cationic polymer is a polysaccharide.3. The composition of claim 1 , wherein said cationic polymer is chitosan.4. The composition of claim 1 , wherein said anionic polymer is carboxymethyl cellulose.5. The composition of claim 1 , wherein said polar solution comprises water and formic acid adjusted to a pH of about 3-4. This application is a divisional of U.S. application Ser. No. 16/222,717, filed Dec. 17, 2018, which is a divisional of U.S. application Ser. No. 14/894,914, filed Nov. 30, 2015 (now U.S. Pat. No. 10,202,517), which is a National Stage Application under 35 U.S.C. § 371 and claims the benefit of International Application No. PCT/US2014/046682, filed Jul. 15, 2014, which claims priority to U.S. Provisional Application No. 61/858,992, filed Jul. 26, 2013. The disclosures of the foregoing applications are hereby incorporated by reference in their entirety.This invention was made with government support under Grant No. 2007-35504-18339 awarded by the USDA, Contract No. 11-JV-11111129-121 awarded by the USDA Forest Service and Hatch Act Project No. PEN04436 awarded by the USDA. The Government has certain rights in the invention.This document relates to polymer compositions (e.g., biopolymer compositions) and coatings. For example, this document provides methods and materials ...

Подробнее
Номер записи: 69
25-02-2021 дата публикации

PULP MOLDED PRODUCT AND METHOD FOR MANUFACTURING SAME

Номер: US20210054569A1
Автор: ENOMOTO Takashi, Matsuda Michio, Uehara Tetsuya
Принадлежит: DAIKIN INDUSTRIES, LTD.

A molded pulp product including: a pulp, a water- and oil-resistant agent, and a water soluble polymer that does not dissolve in an aqueous medium at 40° C. or lower, wherein a content of the water soluble polymer is 1 to 50% by mass, based on the pulp. 125-. (canceled)26. A molded pulp product comprising:a pulp,a water- and oil-resistant agent, anda water soluble polymer that does not dissolve in an aqueous medium at 40° C. or lower, wherein a content of the water soluble polymer is 1 to 50% by mass, based on the pulp.27. The molded pulp product according to claim 26 , wherein the water soluble polymer is starch.28. The molded pulp product according to claim 26 , wherein the water soluble polymer has a cation site.29. The molded pulp product according to claim 26 , wherein the water soluble polymer comprises a starch powder.30. The molded pulp product according to claim 26 , wherein a content of the water- and oil-resistant agent is 0.01 to 20% by mass claim 26 , based on the pulp.31. The molded pulp product according to claim 26 , wherein the water- and oil-resistant agent comprises a fluorine-containing copolymer comprising repeating units derived from: {'br': None, 'sub': '2', 'CH═C(—X)—C(═O)—Y—Z—Rf\u2003\u2003(1)'}, '(a) a fluorine-containing monomer represented by general formula X is a hydrogen atom, a monovalent organic group, or a halogen atom,', 'Y is —O— or —NH—,', 'Z is a direct bond or a divalent organic group, and', 'Rf is a fluoroalkyl group having 1 to 20 carbon atoms; and, 'wherein'}(b) a monomer having at least one of an anion donating group and a cation donating group.32. The molded pulp product according to claim 31 , wherein in general formula (1) claim 31 ,{'sup': 1', '2', '1', '2, 'X is a hydrogen atom, a linear or branched alkyl group having 1 to 21 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a CFXXgroup (wherein Xand Xare each independently a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, ...

Подробнее
Номер записи: 70
23-02-2017 дата публикации

Process for producing at least one ply of a paper or board and a paper or board produced according to the process

Номер: US20170051456A1
Автор: Anders Moberg, Frank Peng, Gunilla Pettersson, Hallgren HANS, Hans Hoglund, Sven NORGREN
Принадлежит: STORA ENSO OYJ

The present invention relates to a process for producing at least one ply of a paper or board product wherein a web comprising mechanical and/or chemimechanical pulp and at least one dry strength additive is dried in a press drying process by subjecting the web to heat and an overpressure of above 40 kPa. The present invention also relates to a paper product, a paperboard product and a ply produced according to the process.

Подробнее
Номер записи: 71
10-03-2022 дата публикации

METHOD FOR TREATING A FIBROUS MATERIAL COMPRISING NANOCELLULOSE WITH AN ORGANIC ACID OR ORGANIC ACID SALT

Номер: US20220074140A1
Автор: Backfolk Kaj, Heiskanen Isto, Lyytikäinen Katja, Nylén Otto
Принадлежит: STORA ENSO OYJ

The present invention relates to a method for preparing a surface-treated fibrous material comprising nanocellulose, in which a fibrous material is surface treated with an organic acid or salt thereof. Fibrous materials as such are also provided. The present technology allows improved Water Vapor Transmission Rates (WVTR) for the fibrous material, while operating on an industrial scale. 1. A method for preparing a surface-treated fibrous material comprising nanocellulose , said method comprising the steps of:a. forming a fibrous material from a suspension comprising nanocellulose, andb. surface treatment of the fibrous material with a solution comprising an organic acid or organic acid salt, to obtain a surface-treated fibrous material having a surface pH of at least 3 wherein the barrier properties of the surface-treated fibrous material is improved compared to the fibrous material.2. The method according to claim 1 , which fibrous material is formed from a suspension comprising native nanocellulose.3. The method according to claim 1 , wherein the suspension comprises modified nanocellulose.4. The method according to claim 1 , wherein the surface-treated fibrous material has a surface pH above 4.5. The method according to claim 1 , wherein the organic acid is selected from a group consisting of citric acid claim 1 , lactic acid claim 1 , acetic acid claim 1 , formic acid claim 1 , oxalic acid and uric acid.6. The method according to claim 1 , wherein the organic acid salt is a salt of an organic acid selected from a group consisting of: citric acid claim 1 , lactic acid claim 1 , acetic acid claim 1 , formic acid claim 1 , oxalic acid and uric acid.7. The method according to claim 1 , wherein the surface treatment step is followed by drying of the surface-treated fibrous material.8. The method according to claim 1 , further comprising a neutralizing treatment step of the fibrous web or the nanocellulose suspension with a neutralizing agent before any drying step.9. ...

Подробнее
Номер записи: 72
02-03-2017 дата публикации

PROCESS FOR MANUFACTURING ABSORBENT SANITARY PAPER PRODUCTS

Номер: US20170056545A1
Автор: BYRNE Thomas Timothy, Kien Kathryn Christian, McNEIL Kevin Benson
Принадлежит:

A method of manufacturing an absorbent sanitary paper product is disclosed. The method comprises the steps of: forming a nonwoven structure by spinning filaments; applying a plurality of fibers to the nonwoven structure to form a first network of fibers having a first and a second side and wherein the fibers and the filaments comprising the first network of fibers have a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions; applying a first bonding layer in a first pattern to one of the first and second sides of the first network of fibers; and, applying a first second network of fibers to the first bonding layer, the first second network of fibers comprising a combination of a first plurality of fibers and a second plurality of fibers, the first and second pluralities of fibers being different. 1. A method of manufacturing an absorbent sanitary paper product having a machine direction , a cross-machine direction orthogonal and co-planar thereto , and a Z-direction orthogonal to both the machine- and cross-machine directions , said method comprising the steps of:forming a nonwoven structure by spinning filaments;applying a plurality of fibers to said nonwoven structure to form a first network of fibers having a first and a second side and wherein said fibers and said filaments comprising said first network of fibers have a longitudinal axis generally disposed within the plane comprising said machine- and cross-machine-directions;applying a first bonding layer in a first pattern to one of said first and second sides of said first network of fibers; and,applying a first second network of fibers to said first bonding layer, said first second network of fibers comprising a combination of a first plurality of fibers and a second plurality of fibers, said first and second pluralities of fibers being different.2. The method of further comprising the steps of applying a second bonding layer to one of said first and ...

Подробнее
Номер записи: 73
15-05-2014 дата публикации

Stone-Made Green Energy Paper and Method for Making the Same

Номер: US20140135423A1
Автор: Hsien Chung Chou
Принадлежит: Real Green Material Technology Corp

The present invention relates to relates to a stone-made green energy paper and a method for making the same, wherein the stone-made green energy paper is made of some non-toxic materials consisting of a stone powder, a pure-white silica powder and a non-toxic resin. This stone-made green energy paper can be used as a base paper for further machining to a green energy writing paper or a green energy art-using paper. The stone-made green energy paper includes the advantages of good ink absorption, high waterproof, high strength, high folding performance, and free-pollution. Moreover, the most important is that the stone-made green energy paper has no CaCo 3 ingredient, so that the stone-made green energy paper can be incinerated through an incinerator, without producing any acid gas.

Подробнее
Номер записи: 74
03-03-2016 дата публикации

Polysaccharide fibers with an increased fibrillation tendency and method for the production thereof

Номер: US20160060792A1
Автор: Christoph Schrempf, Franz DÜRNBERGER, Gert Kroner, Hartmut Ruf, Heinrich Firgo, Sigrid Redlinger
Принадлежит: Lenzing AG

The present invention relates to a method for the production of polysaccharide fibers having increased fibrillation tendency, which, as a fiber-forming substance, comprise a mixture of cellulose and α(1→3)-glucan, as well as to the fibers made thereof and to their use.

Подробнее
Номер записи: 75
03-03-2016 дата публикации

Use of Micronized Cellulose and Fluorescent Whitening Agent for Surface Treatment of Cellulosic Materials

Номер: US20160060814A1
Автор: HAUSCHEL Bernd, Hunke Bernhard, Klug Gunter, Kraemer Michael
Принадлежит: Blankophor Gmbh & Co., KG

A combination of micronized cellulose and fluorescent whitening agents for surface treatment of cellulosic sheet-formed materials, e.g. paper, board or cotton fabric, and to preparations including the micronized cellulose and the fluorescent whitening agents. The combination enables improved fluorescent whitening and optical brightening of the cellulosic materials. 2. The process according to claim 1 , wherein the preparation further comprises water.3. The process according to claim 2 , wherein the preparation is a size press liquor or a film press liquor.4. The process according to claim 2 , wherein the preparation is a coating color and coating slip claim 2 , respectively.5. The process according to claim 1 , wherein the micronized cellulose comprises particles and/or fibers having a length of 0.005 μm to 15 μm and a maximum diameter that does not exceed 25 μm.6. The process according to claim 1 , wherein in formula (1) of the at least one fluorescent whitening agent one group of Rand Ris H and the other group is selected from SO and COOH.7. The process according to claim 1 , wherein the cellulosic sheet-formed structure is paper or board.8. The process according to claim 1 , wherein the cellulosic sheet-formed structure is textile material claim 1 , in particular cotton fabric.10. The preparation of claim 9 , wherein claim 9 , based on weight claim 9 , the 1 amount of micronized cellulose is less than or equal to a tenfold amount of the fluorescent whitening agent.11. The preparation of claim 9 , wherein the fluorescent whitening agent to micronized cellulose is at a weight ratio of 7:93 to 50:50 weight-% claim 9 , based on the active substance content of the preparation12. The preparation of claim 9 , wherein the preparation further comprises starch and is a size press liquor or a film press liquor.13. The preparation of claim 9 , wherein the preparation further comprises a white pigment and is a coating color and coating slip claim 9 , respectively.14. A ...

Подробнее
Номер записи: 76
21-02-2019 дата публикации

COMPOSITIONS AND METHODS FOR TREATING FILLER IN PAPERMAKING

Номер: US20190055696A1
Автор: RAO Qinglong
Принадлежит:

Method of papermaking comprises: treating filler with a starch and a flocculant to form a filler floc; combining the filler floc with the cellulose fiber stock; and forming a paper mat from the combination of filler floc and cellulose fiber stock. The method have been found to result in larger particle sizes for the filler flocs, improved shear stability, and improved sheet strength in the paper mat. 1. A method of papermaking comprising:a. treating filler with a starch and a cationic flocculant to form a filler floc;b. combining the filler floc with the cellulose fiber stock; andc. forming a paper mat from the combination of filler floc and cellulose fiber stock.2. The method of claim 1 , wherein the starch and the cationic flocculant have been premixed together before treatment with the filler.3. The method of claim 1 , wherein the starch and the cationic flocculant are added to the filler simultaneously.4. The method of claim 1 , wherein the filler is a dispersed filler.5. The method of claim 1 , wherein the filler is a nondispersed filler.6. The method of claim 1 , wherein the filler is a combination of dispersed and nondispersed fillers.7. The method of claim 1 , wherein the filler is selected from the group consisting of calcium carbonate claim 1 , kaolin clay claim 1 , talc claim 1 , titanium dioxide claim 1 , silica claim 1 , silicate claim 1 , aluminum hydroxide claim 1 , calcium sulfate claim 1 , alumina trihydrate claim 1 , barium sulfate claim 1 , magnesium hydroxide claim 1 , and combinations thereof.8. The method of claim 1 , wherein the starch is selected from the group consisting of raw starch claim 1 , nonionic starch claim 1 , anionic starch claim 1 , cationic starch claim 1 , zwitterionic starch claim 1 , amphoteric starch claim 1 , and combinations thereof.9. The method of claim 8 , wherein the starch is a cationic starch.10. The method of claim 9 , wherein the cationic starch is selected to have a charge density of from about 1 to about 5 mol. ...

Подробнее
Номер записи: 77
02-03-2017 дата публикации

SURFACE ENHANCED PULP FIBERS AT A SUBSTRATE SURFACE

Номер: US20170058457A1
Автор: Marcoccia Bruno, Pande Harshad, Williams Robert M.
Принадлежит:

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. 114-. (canceled)15. A method of making a paper product having improved printed characteristics , comprising the steps of:providing an aqueous slurry comprising a blend of cellulosic fibers and water;at least partially dewatering the aqueous slurry of cellulosic fibers and water to form a fibrous substrate;applying a surface treatment to a top surface of the fibrous substrate, wherein the surface treatment comprises an aqueous composition comprising surface enhanced pulp fibers, to form a treated fibrous substrate; anddrying the treated fibrous substrate to form a paper product having enhanced printing characteristics,wherein the surface enhanced pulp fibers comprise refined hardwood pulp fibers having a length-weighted average fiber length of at least about 0.3 millimeters, and an average hydrodynamic specific surface area of at least about 10 square meters per gram.16. The method of claim 15 , wherein the ...

Подробнее
Номер записи: 78
20-02-2020 дата публикации

PARTIALLY SOLUBLE DEXTRINS OF HIGH MOLECULAR WEIGHT

Номер: US20200056062A1
Автор: Mesnager Julien, WIATZ Vincent
Принадлежит:

The subject matter of the invention is a modified starch, characterized in that it exhibits: ⋅a weight-average molecular weight ranging from 250 000 to 2 000 000 Da; ⋅a solubility, measured according to a test A, ranging from 50 to 85%. The invention also relates to a process for the manufacture of said starch and to the use thereof in the manufacture of an aqueous binder. 114-. (canceled)16. The dextrin according to claim 15 , wherein the dextrin has a polydispersity index is greater than 5 claim 15 , preferably greater than 10 and more preferably still greater than 15.17. The dextrin according to claim 15 , wherein the dextrin exhibits a solubility ranging from 55 to 65%.18. The dextrin according to claim 15 , wherein the dextrin exhibits a solubility ranging from 65 to 80%.19. The dextrin according to claim 15 , wherein the dextrin exhibits a weight-average molecular weight ranging from 380 claim 15 ,000 Da to 1 claim 15 ,400 claim 15 ,000 Da.20. The dextrin according to claim 15 , wherein the dextrin exhibits a mass fraction of greater than 5% of starch molecules with a molecular weight of greater than 1 claim 15 ,000 claim 15 ,000 Da.21. The dextrin according to claim 15 , wherein the dextrin comprises claim 15 , with respect to the total weight of dextrin:a mass fraction of between 5 and 25% of starch molecules with a molecular weight of greater than 1,000,000 Da,a mass fraction of between 25 and 50% of starch molecules with a molecular weight of greater than 100,000 Da and less than or equal to 1,000,000 Da,a mass fraction of between 30 and 50% of starch molecules with a molecular weight of greater than 10,000 Da and less than or equal to 100,000 Da,a mass fraction of less than 20% of starch molecules with a molecular weight of less than or equal to 10,000 Da.22. The dextrin according to claim 15 , wherein the amount of acid introduced is between 0.006 and 0.015 mol per kg of dry starch.23. The dextrin according to claim 15 , wherein the amount of acid ...

Подробнее
Номер записи: 79
12-03-2015 дата публикации

Composition of Fibrous Material

Номер: US20150068693A1
Автор: DAgnone Uwe
Принадлежит:

The present invention relates to a fibrous material composition having a predefined fraction of fresh fibres and/or waste paper with a further fraction of sweet grass, sedge, seagrass and/or algae fibres and adjuvants and water, where the weight fraction of sweet grass, sedge, seagrass and/or algae fibres is greater than 1 and less than 100 wt. % of the total material mass, in each case calculated as oven-dry material fraction. The invention further relates to a method for producing the fibrous material mixture and its use for producing fibrous-material-containing products. 1. A fibrous material composition comprising:a first proportion of at least one of fresh fibres and waste paper,a second proportion of grass fibres including at least one of sweet grass, sedges, seagrass and algae fibres, andadjuvants and water,wherein the weight fraction of grass fibres is greater than 1 and less than 100 wt. % of the total material mass, in each case calculated as an oven-dry material fraction.2. The fibrous material composition according to claim 1 , wherein at least one of the fresh fibres and the waste paper are selected from a group containing long fibre pulp claim 1 , short fibre pulp claim 1 , chemically delignified fibrous materials claim 1 , sulphate pulp claim 1 , sulphite pulp claim 1 , pulps from the soda process or organocell process claim 1 , cotton pulp claim 1 , mechanical pulp claim 1 , thermo mechanical pulp claim 1 , groundwood pulp claim 1 , chemo thermo mechanical pulp claim 1 , waste paper claim 1 , bleached cellulose claim 1 , and combinations thereof.3zea mayscarex. The fibrous material composition according to wherein at least one of the sweet grass and sedge fibres are selected from a group of grasses which includes spike grasses claim 1 , meadow grasses and spiked meadow grasses as well as sedges of the genera poaceae claim 1 , and cyperaceae —maize claim 1 , meadow grass claim 1 , sport and utility grass claim 1 , sedges of the species claim 1 , and ...

Подробнее
Номер записи: 80
12-03-2015 дата публикации

PAPERBOARDS HAVING IMPROVED BENDING STIFFNESS AND METHOD FOR MAKING SAME

Номер: US20150068696A1
Автор: DYER DAVID A., REED DAVID V.
Принадлежит:

Paperboards having improved MD and CD bending stiffness by including a paperboard binder coalescing agent to cause starch paperboard binder to coat at least some of the paperboard fibers. Also a method for preparing these improved bending stiffness paperboards by combining with an untreated paperboard fiber stream a treated paperboard fiber stream where at least some/at least a portion of the paperboard fibers are coated with a starch paperboard binder due to the coalescing action of a paperboard binder coalescing agent. 1. An article comprising a ply of paperboard comprising:paperboard fibers which comprise at least about 50% by weight hardwood fibers;a paperboard binder, anda paperboard binder coalescing agent in an amount sufficient to cause the starch paperboard binder to coat at least a portion of the paperboard fibers; a caliper of from about 8 to about 28 points;', {'sup': '2', 'a basis weight in the range of from about 105 to about 300 lbs/3000 ft;'}, {'sup': 1', '2.2095', '1, 'y=0.5297x, wherein x is the caliper of the paperboard and yis the MD benching stiffness in Taber Stiffness Units; and'}, 'a MD bending stiffness equal to or greater than a first curve defined by the equation, {'sup': 2', '2.268', '2, 'y=0.2188x, wherein x is the caliper of the paperboard and yis the CD bending stiffness in Taber Stiffness Units.'}, 'a CD bending stiffness equal to or greater than a second curve defined by the equation], 'the paperboard having2. The article of claim 1 , wherein the caliper is in the range of from about 12 to about 18 points.3. The article of claim 1 , wherein the basis weight is in the range of from about 140 to about 200 lbs/3000 ft.4. The article of claim 1 , wherein the paperboard binder coalescing agent comprises the cooked combination of a cationic non-starch polymer and a cationic starch in an amount of at least about 0.1% by weight of the starch paperboard binder.5. The article of claim 4 , wherein the paperboard coalescing agent comprises the ...

Подробнее
Номер записи: 81
12-03-2015 дата публикации

METHOD FOR DISSOLVING CATIONIC STARCH, PAPERMAKING AGENT AND ITS USE

Номер: US20150068697A1
Автор: Karppi Asko, Tirronen Esko
Принадлежит:

The invention relates to a method for dissolving cationic starch. In the method is obtained an aqueous polyelectrolyte solution comprising a synthetic cationic polymer, which has a charge density value of at least 0.1 meq/g, determined at pH3, the concentration of the cationic polymer in the polyelectrolyte solution being >2.5 weight-%, and the aqueous polyelectrolyte solution is brought together with cationic starch having a degree of substitution, DS, >0.1. The cationic starch is dissolved to the polyelectrolyte solution by heating and/or mixing. The invention relates also to a papermaking agent comprising 2-40 weight-% of synthetic cationic polymer which has a charge density value of at least 0.1 meq/g, determined at p H 3, and 2.5-25 weight-% cationic starch having degree of substitution, DS, >0.1. The papermaking agent is in slurry form and has a viscosity of 50-20 000 m Pas, measured at 25° C. with Brookfield DVI+ viscometer. 1. Method for dissolving cationic starch , which method comprisesobtaining an aqueous polyelectrolyte solution comprising a synthetic cationic polymer, which has a charge density value of at least 0.1 meq/g, determined at pH 3, the concentration of the synthetic cationic polymer in the polyelectrolyte solution being >2.5 weight-%,bringing the aqueous polyelectrolyte solution together with cationic starch having a degree of substitution, DS, >0.1, anddissolving the cationic starch to the polyelectrolyte solution by heating and/or mixing.2. Method according to claim 1 , characterised in that the aqueous polyelectrolyte solution comprising synthetic cationic polymer has a charge density value of 0.1-23 meq/g claim 1 , preferably 0.2-13 meq/g claim 1 , more preferably 0.3-10 meq/g claim 1 , determined at pH 3.3. Method according to claim 1 , characterised in that the concentration of the synthetic cationic polymer in the polyelectrolyte solution claim 1 , before the polyelectrolyte solution is brought together with cationic starch claim 1 , ...

Подробнее
Номер записи: 82
28-02-2019 дата публикации

ANTI-CRACKING AGENT FOR WATER-BORNE ACRYLIC PAINT AND COATING COMPOSITIONS

Номер: US20190062562A1
Автор: MEEUWISSEN Corne, van ENGELEN Gerardus Petrus Franciscus Maria, van INGEN Gijsbert Adriaan
Принадлежит: Koninklijke Cooperatie Cosun U.A.

This invention relates to water-borne acrylic paints and coatings, especially to agents that can be used to reduce the amount of VOC's to yield satisfactory paints or coatings. It has been found that cellulose based particles, which comprise cell wall material and their networks of cellulose based fibers and nanofibrils can be used to accomplish a reduction in VOCs and at the same time increase hardness and lower cracking of the dried acrylic paints and coatings. It is assumed that the organization of the cellulose fibrils, as it exists in the parenchymal cell walls, is at least partly retained in the cellulose based particles of the invention, even though part of the pectin and hemicellulose is removed there from. 1. A parenchymal cellulose composition , comprising a particulate cellulose material comprising , by dry weight of the particulate cellulose material , (i) at least 70% cellulose , (ii) 0.5-10% pectin and (iii) 1-15% hemicellulose , wherein the particulate material has a volume-weighted median major particle dimension within the range of 25-75 μm , as measured by laser light diffractometry.2. The parenchymal cellulose composition according to claim 1 , wherein the particulate material has a volume-weighted median major particle dimension within the range of 35-65 μm claim 1 , as measured by laser light diffractometry3. The parenchymal cellulose composition according to claim 1 , wherein at least 90% claim 1 , on a volume basis claim 1 , of the particles have a diameter less than 120 μm.4. The parenchymal cellulose composition according to claim 1 , wherein at least 90% claim 1 , on a volume basis claim 1 , of the particles have a diameter less than 110 μm.5. The parenchymal cellulose composition according to claim 1 , wherein the morphology of the particulate cellulose material has cellulose network structures.6. The parenchymal cellulose composition according to claim 1 , comprising less than 10 wt. % of unraveled cellulose nanofibrils.7. A method of ...

Подробнее
Номер записи: 83
17-03-2022 дата публикации

COMPOSITE, COMPACT, AND METHOD FOR MANUFACTURING COMPACT

Номер: US20220081841A1
Автор: HIGUCHI Naotaka, Nakai Yoko, TANAKA Hideki, YOKOKAWA Shinobu
Принадлежит:

A composite includes a fiber and a dextrin, wherein at least part of the dextrin adheres to the fiber, and the dextrin has a DE value of 0.25 or more and 3.60 or less. 1. A composite comprising:a fiber; anda dextrin, whereinat least part of the dextrin adheres to the fiber; andthe dextrin has a DE value of 0.25 or more and 3.60 or less.2. The composite according to claim 1 , whereina content of the dextrin is 2.0 mass % or more and 60.0 mass % or less based on the total amount of the composite.3. The composite according to claim 1 , whereinthe fiber is made of a material having a hydroxy group, a carbonyl group, or an amino group.4. The composite according to claim 1 , whereinthe fiber is cellulose.5. A compact formed into a predetermined shape by using the composite according to as a raw material.6. The compact according to claim 5 , having a sheet-like shape.7. A method for manufacturing a compact claim 5 , comprising:a mixing step of mixing a fiber and a dextrin having a DE value of 0.25 or more and 3.60 or less to obtain a mixture;a humidifying step of humidifying the mixture; anda forming step of pressurizing and heating the humidified mixture to obtain a compact.8. The method for manufacturing a compact according to claim 7 , whereina water content of the mixture at the time of completion of the humidifying step is 15.0 mass % or more and 50.0 mass % or less based on the total amount of the mixture.9. The method for manufacturing a compact according to claim 7 , whereina heating temperature in the forming step is 60.0° C. or more and 150.0° C. or less.10. The method for manufacturing a compact according to claim 7 , whereinthe fiber and the dextrin include those obtained from a compact manufactured by the manufacturing method. The present application is based on, and claims priority from JP Application Serial Number 2020-153571, filed Sep. 14, 2020, the disclosure of which is hereby incorporated by reference herein in its entirety.The present disclosure ...

Подробнее
Номер записи: 84
17-03-2022 дата публикации

OIL-RESISTANT AGENT FOR PAPER

Номер: US20220081842A1
Автор: Matsuda Michio, Noguchi Daisuke, SAKASHITA Hirotoshi, Uehara Tetsuya, Yamamoto Yuuki
Принадлежит: DAIKIN INDUSTRIES, LTD.

A paper oil-resistant agent which is added to the interior of paper and includes (1) a non-fluorine polymer and (2) at least one type of particles selected from inorganic particles or organic particles, the amount of the particles (2) being 1-99.9 wt % of the total weight of the non-fluorine polymer (1) and the particles (2). Also disclosed is an oil-resistant paper including the paper oil-resistant agent and a method for producing the oil-resistant paper. 1. A paper oil-resistant agent which is added to interior of paper , comprising:(1) a fluorine-free polymer, and(2) at least one type of particles selected from inorganic particles or organic particles,wherein an amount of the particles (2) is 1 to 99.9% by weight, based on the total weight of the fluorine-free polymer (1) and the particles (2).2. The paper oil-resistant agent according to claim 1 , wherein the fluorine-free polymer (1) is an acrylic polymer.4. The paper oil-resistant agent according to claim 3 , wherein claim 3 , in the acrylic monomer having a long-chain hydrocarbon group (a) claim 3 , Xis a hydrogen atom or a methyl group.5. The paper oil-resistant agent according to claim 3 , wherein claim 3 , in the acrylic monomer having a long-chain hydrocarbon group (a) claim 3 , the long-chain hydrocarbon group has 18 or more carbon atoms.6. The paper oil-resistant agent according to claim 3 , whereinthe acrylic monomer having a long-chain hydrocarbon group (a) is:{'claim-text': {'br': None, 'sub': '2', 'sup': ['4', '2', '2'], '#text': 'CH═C(—X)—C(═O)—Y—R'}, '#text': '(a1) an acrylic monomer represented by formula:'}{'claim-text': [{'sup': '2', '#text': 'Ris a hydrocarbon group having 7 to 40 carbon atoms,'}, {'sup': '4', '#text': 'Xis a hydrogen atom, a monovalent organic group, or a halogen atom, and'}, {'sup': '2', '#text': 'yis —O— or —NH—, and/or'}], '#text': 'wherein'}{'claim-text': {'br': None, 'sub': ['2', 'n'], 'sup': ['5', '3', '4', '3'], '#text': 'CH═C(—X)—C(═O)—Y—Z(—Y—R)'}, '#text': '(a2) an ...

Подробнее
Номер записи: 85
17-03-2022 дата публикации

Composite, compact, and method for manufacturing compact

Номер: US20220081843A1
Автор: Hideki Tanaka, Naotaka Higuchi, Shinobu Yokokawa, Yoko Nakai
Принадлежит: Seiko Epson Corp

A composite includes a fiber and a dextrin, wherein at least part of the dextrin adheres to the fiber, the molecular weight distribution curve of the dextrin has a first maximum and a second maximum, the weight average molecular weight value based on a peak belonging to the first maximum is less than 6000, and the weight average molecular weight value based on a peak belonging to the second maximum is 6000 or more.

Подробнее
Номер записи: 86
28-02-2019 дата публикации

METHOD FOR PRODUCING CELLULOSE PULP, CELLULOSE PULP AND USE THEREOF, PAPER

Номер: US20190062999A1
Автор: ALVES DE MELO Leonardo, MAMBRIM FILHO Otávio
Принадлежит:

The present invention relates to an enhanced process for the production of cellulose pulps with increased quality and applicability of said pulps, especially their physical resistance properties and degree of resistance to drainage, through an enzymatic treatment step comprised in the production process of said cellulose pulp, concomitantly with the polymer dosage based on carbohydrates. 1. Process for producing cellulose pulp from cellulosic feedstock characterized by comprising the steps of:a) treating the cellulosic feedstock through a chemical or semi-chemical pulping process to produce brown cellulose pulp;b) bleaching the brown cellulose pulp through a bleaching sequence to obtain a white slurry pulp;c) adding a carbohydrate-based polymer, wherein the dosage of said polymer ranges from 2 to 12 kg/ton of cellulose pulp; i. reaction temperature between 40 and 90° C.;', 'ii. reaction pH between 3.0 and 9.0;', 'iii. reaction time between 10 and 300 minutes;', 'iv. enzyme amount between 10 g of EZ and 200 g of EZ per ton of cellulose;, 'd) adding an enzyme or enzyme mixture to the white slurry pulp already doped with the carbohydrate-based polymer, wherein the addition of the enzyme (EZ) or enzyme mixture takes place according to the following conditionse) conveying the doped white slurry pulp to and through a reaction tower before a drying machine; andf) drying the doped white slurry pulp to obtain the cellulose pulp.2. Process according to claim 1 , wherein the cellulosic feedstock is a vegetable fiber.3eucalyptus. Process according to claim 2 , wherein the vegetable fiber is a short fiber claim 2 , more preferably claim 2 , a fiber.4. Process according to claim 1 , wherein the pulping process is a Kraft process.5. Process according to claim 1 , wherein bleaching comprises using an ECF or TCF bleaching sequence.6. Process according to claim 1 , wherein the addition of the enzyme (EZ) or enzyme mixture takes place according to the following conditions:i. reaction ...

Подробнее
Номер записи: 87
27-02-2020 дата публикации

CELLULOSE/POLYSACCHARIDE COMPOSITES

Номер: US20200062929A1
Автор: BEHABTU NATNAEL
Принадлежит:

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. 1. A cellulose/polysaccharide composite comprising:a) cellulose; andb) an enzymatically-produced polysaccharide, a derivative of an enzymatically-produced polysaccharide, or a mixture thereof;wherein the enzymatically-produced polysaccharide and the polysaccharide derivative are water-insoluble.2. The composite of claim 1 , wherein the enzymatically-produced polysaccharide comprises:i) poly alpha-1,3-glucan;ii) poly alpha-1,3-1,6-glucan;iii) alpha-(1,3-glucan) polymer having 90% or greater α-1,3-glycosidic linkages, less than 1% by weight of alpha-1,3,6-glycosidic branch points, and a number average degree of polymerization in the range of from 55 to 10,000; or{'sub': 'w', 'iv) water-insoluble cellulose having a weight-average degree of polymerization (DP) of about 10 to about 1000 and a cellulose II crystal structure.'}3. The composite of claim 1 , wherein the polysaccharide or polysaccharide derivative comprises particles having an average particle size in at least one dimension in the range of from about 20 nm to about 200 μm.4. The composite of claim 1 , wherein the polysaccharide or polysaccharide derivative is characterized by a surface area in the range of from about 0.1 m/g to about 200 m/g claim 1 , as determined by Brunauer-Emmett-Teller measurement method.5. The composite of claim 1 , wherein the polysaccharide comprises poly alpha-1 claim 1 ,3-glucan claim 1 , and the composite comprises from about 1 weight percent to about 49 weight percent poly alpha-1 claim 1 ,3-glucan claim 1 , based on the total ...

Подробнее
Номер записи: 88
27-02-2020 дата публикации

PAPER BAG

Номер: US20200063355A1
Автор: Everett Charles Stuart, Ghosh Koushik, Izallalen Mounir, Mitchell Melvin Glenn, Parker Kenny Randolph
Принадлежит: EASTMAN CHEMICAL COMPANY

The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. This invention also relates to a biodegradable bag. 1. A paper bag having a basis weight of 50 g/mat least 150 g/m , wherein the paper bag article comprises cellulose fibers and cellulose ester (CE) staple fibers , said CE staple fibers having:i. a denier per filament (DPF) of less than 3, orii. a cut length of less than 6 mm, oriii. crimping, oriv. a combination of any two or more of (i)-(iv).2. A paper bag article having a basis weight of 50 g/mat least 150 g/mobtained from a composition comprising co-refined cellulose fibers and cellulose ester (CE) staple fibers , wherein the paper bag has the same , higher , or not more than a 5% reduction in Gurley stiffness , and a lower density , in each case relative to the same paperboard obtained from a 100% cellulose comparative composition.3. The paper bag article of claim 1 , wherein the composition further comprises an additive which comprises one or more of the following: fillers claim 1 , talc claim 1 , clay claim 1 , calcium carbonate claim 1 , titanium dioxide claim 1 , starches claim 1 , plasticizers claim 1 , antioxidants claim 1 , surfactants claim 1 , crosslinking agents claim 1 , thermal stabilizers claim 1 , pro-oxidants claim 1 , acid scavengers claim 1 , inorganics claim 1 , brightening agents claim 1 , pigments claim 1 , dyes claim 1 , dry or wet strength polymers antimicrobials claim 1 , adhesives claim 1 , and colorants.4. ...

Подробнее
Номер записи: 89
27-02-2020 дата публикации

COMPOSITION OF MATTER IN A POST-REFINER BLEND ZONE

Номер: US20200063358A1
Автор: Everett Charles Stuart, Ghosh Koushik, Izallalen Mounir, Mitchell Melvin Glenn, Parker Kenny Randolph
Принадлежит: EASTMAN CHEMICAL COMPANY

After cellulose fibers and cellulose ester fibers are co-refined, they are fed to a blend tank continuously feeds a wet laid process. The composition in the blend tank includes co-refined cellulose fibers and cellulose ester fibers and one or more additives, and the cellulose ester fibers have a denier per filament (DPF) of less than 3, a cut length of less than 6 mm, crimped, or non-round with a DPF of less than 3. 1. A composition comprising: i. a denier per filament (DPF) of less than 3, or', 'ii. a cut length of less than 6 mm, or', 'iii. crimping, or', 'iv. non-round with a DPF of less than 3, or', 'v. a combination of any two or more of (i)-(iv), and, 'a. cellulose fibers that are virgin, waste/recycle, or both, and cellulose ester (CE) staple fibers, that have been co-refined, wherein the CE staple fibers haveb. water, andc. one or more additives comprising brightening agents, dyes, pigments, fillers, retention aids, antimicrobial agents, defoamers, pH control agents, pitch control agents, internal sizing agents, dry or wet strength polymers, adhesives, retention aids, or drainage aids, or a combination thereof.2. The composition of claims 1 , further comprising broke pulp.3. The composition of claim 1 , wherein the amount of additives are not more than 5 wt. % claim 1 , based on the weight of the Composition.4. The composition of claim 1 , wherein the additive comprises a pigment or filler claim 1 , said pigment or filler comprising clay claim 1 , talc claim 1 , calcium carbonate claim 1 , precipitated calcium carbonate claim 1 , kaolin claim 1 , or titanium dioxide claim 1 , or a combination thereof.5. The composition of claim 1 , wherein the additive comprises a dry and/or wet strength polymer.6. The composition of claim 1 , wherein the additive comprises a sizing agent comprising a rosin claim 1 , alkylketene dimer (AKD) claim 1 , alkyl succinic anhydride (ASA) claim 1 , or starch claim 1 , or a combination thereof.7. The composition of claim 1 , wherein ...

Подробнее
Номер записи: 90
27-02-2020 дата публикации

MOISTURE-PROOF, FIBROUS SUBSTRATE HAVING ADJUSTABLE MOISTURE AND WET STRENGTH, AND METHOD FOR PRODUCTION THEREOF

Номер: US20200063369A1
Автор: BECK Herbert, ECKL Josef, SENGER Hans
Принадлежит: CHEM&P GMBH & CO. KG

The present invention relates to a wet strength, fibre-containing substrate having adjustable wet strength and wetness strength, wherein the substrate comprises fibres, at least one binder, at least one amphoteric amine and at least one moistening agent, wherein the at least one binder comprises or consists of at least one polysaccharide having at least one acid group-containing residue, and wherein the at least 1 moistening agent comprises at least 1 organic component selected from the group consisting of aliphatic alcohols, aliphatic ethers, aliphatic esters, monosaccharides, oligosaccharides and mixtures thereof, preferably aliphatic alcohols, aliphatic ethers and mixtures thereof, and also, furthermore, to a method for producing the wet strength, fibre-containing substrate, and to use thereof. 1. Wet strength , fibre-containing substrate , characterized in that the substrate comprises fibres , at least 1 binder , at least 1 amphoteric amine , which is a compound which may react both as Brønsted acid and as Brønsted base , and at least 1 moistening agent , wherein the at least 1 binder comprises at least 1 polysaccharide having at least 1 acid group- containing residue and wherein the at least 1 moistening agent comprises at least 1 organic component selected from the group consisting of aliphatic alcohols , aliphatic ethers , aliphatic esters , monosaccharides , oligosaccharides and mixtures thereof.2. Wet strength claim 1 , fibre-containing substrate according to claim 1 , characterized in that the substrate comprises fibres claim 1 , at least 1 binder claim 1 , at least 1 amphoteric amine and at least 1 moistening agent claim 1 , wherein the at least 1 polysaccharide of the at least 1 binder is selected from the group consisting of cellulose claim 1 , starch claim 1 , agarose claim 1 , algin claim 1 , alginate claim 1 , chitin claim 1 , pectin claim 1 , gum arabic claim 1 , xanthan gum claim 1 , guaran and a mixture thereof claim 1 , wherein preferably the at ...

Подробнее
Номер записи: 91
09-03-2017 дата публикации

A METHOD OF MAKING A THERMOPLASTIC FIBER COMPOSITE MATERIAL AND WEB

Номер: US20170067208A1
Автор: Backfolk Kaj
Принадлежит:

A method for forming a thermoplastic composite material in a papermaking machine, wherein the method comprises the steps of: forming an aqueous fiber material suspension; bringing said fiber suspension in contact with at least one additive, said additive being introduced into said fiber suspension, whereby said additive reacts to form a precipitation product onto or into the fibers, thereby forming an intermediate suspension, introducing, after the formation of the intermediate suspension, a plastic material into said intermediate suspension, thereby forming a plastic fiber composite suspension. 1. A method for forming a thermoplastic composite material , wherein the method comprises the steps of:forming an aqueous fiber material suspension;bringing said fiber suspension in contact with at least one additive, said additive being introduced into said fiber suspension, whereby said additive reacts to form a precipitation product onto or into the fibers, thereby forming an intermediate suspension,introducing, after the formation of the intermediate suspension, a plastic material into said intermediate suspension, thereby forming a composite material.2. The method as claimed in claim 1 , wherein the thermoplastic composite material comprises a web material formed in a fibrous web papermaking machine.3. The method as claimed in claim 1 , wherein the plastic material comprises any one of a plastic particle material claim 1 , a plastic fiber material or a mixture thereof.4. The method as claimed in claim 1 , wherein the method comprises introducing said at least one additive in a liquid flow of a short circulation of a fibrous web forming process of a fibrous web machine claim 1 , in an in-line production method for forming said reaction agent onto or into the fibers of the fiber suspension.5. The method as claimed in claim 1 , wherein claim 1 , when there are two or more additives claim 1 , the method further comprises allowing these to react with one another to form the ...

Подробнее
Номер записи: 92
09-03-2017 дата публикации

METHOD OF MAKING LIGNOCELLULOSIC PAPER AND PAPER PRODUCTS

Номер: US20170067209A1
Автор: Shekhawat Sujan Singh
Принадлежит:

Provided is a method for producing paper products having improved dry strength. More particularly, a method of improving the dry strength of a paper product is provided wherein an isopeptide bond forming enzyme such as Transglutaminase and an optional protein source such as soy flour is added to a papermaking pulp. 1. A method of making paper products with enhanced dry strength comprising:a) providing a pulp furnish or suspension of bleached, unbleached, or recycled pulp fiber or a combination thereof;b) adding to the pulp furnish or suspension an isopeptide bond forming enzyme and optionally a protein,c) dewatering and forming the pulp furnish into a paper product.2. The method according to claim 1 , wherein the isopeptide bond forming enzyme is selected from the group consisting of transglutaminase [EC 2.3.2.13] claim 1 , sortases EC 3.4.22.71] claim 1 , ubiquitin activating enzyme (El's) claim 1 , ubiquitin conjugating enzymes (E2's) and ubiquitin ligases (E3's) [EC 6.3.2.19].3. The method of claim 1 , wherein the optional protein can be added to the pulp suspension prior to claim 1 , simultaneously with or subsequent to the addition of the isopeptide bond forming enzyme.4. The method of claim 1 , wherein the isopeptide bond forming enzyme is mixed with the optional protein prior to addition to the pulp suspension.5. The method of claim 1 , wherein the protein can be derived from plant or animal sources.6. The method of claim 1 , wherein the protein source is soy flour or milk protein.7. The method of wherein the protein source is soy flour.8. The method of claim 1 , wherein the isopeptide bond forming enzyme is added to the pulp suspension in an amount of from about 0.001% to about 5% based on weight of dry pulp claim 1 , can be from about 0.01% to about 2.5% by weight dry pulp; can be from about 0.1% to about 2% by weight dry pulp and may be from about 0.5% to about 1% by weight of dry pulp.9. The method of claim 1 , wherein the isopeptide bond forming enzyme ...

Подробнее
Номер записи: 93
11-03-2021 дата публикации

CONTROLLED POROSITY STRUCTURAL MATERIAL WITH NANOCELLULOSE FIBERS

Номер: US20210071366A1
Автор: Holomakoff David Gregg, Hossen Muhammad Radowan, Mason Michael Darin
Принадлежит:

The present invention provides, inter alia, biocompatible porous structural materials made exclusively or almost exclusively from nanocellulose fibers (CNF), CNC, or bacterial cellulose, as well as processes for making and using provided compositions. Provided compositions may possess specifically tailored mechanical strength properties and have a design-controlled porosity that is homogeneous or graded, depending on the application. Provided compositions may be manufactured by the controlled dewatering of suspensions of CNF. In some embodiments, provided compositions may include a solids concentration of about 10% to about 95% by weight. Controlled water removal and pore homo- or heterogeneity may be accomplished by controlling capillary, hydrostatic and evaporative processes in the environment of a porous mold around the CNF slurry. A freeze drying or vacuum drying step may be used to complete the drying process, locking in the porous network structure resulting in a predetermined porosity (pore volume/total volume), and pore size distribution. 1. A composition comprisinga plurality of nanocellulose fibrils, wherein the number of intermolecular hydrogen bonds in the composition that are nanocellulose fibril to nanocellulose fibril hydrogen bonds, is, per kilogram of material, between 2 and 10,000 times greater than that of Kraft pulp, and wherein the composition is porous.2. The composition of claim 1 , wherein the number of intermolecular hydrogen bonds in the composition that are nanocellulose fibril to nanocellulose fibril hydrogen bonds claim 1 , is claim 1 , per kilogram of material claim 1 , between 10 and 1 claim 1 ,000 times greater than that of Kraft pulp.3. The composition of claim 1 , wherein the composition comprises about 5 wt % to about 95 wt % nanocellulose fibrils.4. The composition of claim 1 , wherein the composition has a porosity of about 5 vol % to about 95 vol %.5. The composition of claim 1 , wherein porosity of the composition is ...

Подробнее
Номер записи: 94
15-03-2018 дата публикации

Methods of Making Paper and Paper with Modified Cellulose Pulps

Номер: US20180073197A1
Автор: Ademilson Massoquete, Danilo Oyakawa, Romolo Ranocchia
Принадлежит: Fibria Celulose SA

The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starches chemically modified by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources. Thus, the present invention also relates to methods of making paper, such as printing, writing, decorative, special or tissue-type papers, through the use of the cellulose pulps modified by the above process.

Подробнее
Номер записи: 95
24-03-2022 дата публикации

STARCH COMPOSITION

Номер: US20220089842A1
Автор: Karppi Asko
Принадлежит:

The present invention relates to an aqueous composition of dissolved starch, use of it and compositions comprising the same. The composition has good handling properties and viscosity stability also in elevated starch concentrations. 2. The composition of claim 1 , wherein said composition is substantially homogeneous.3. The composition of claim 1 , wherein the cationic starch has a viscosity of 500-2000 mPas claim 1 , preferably of 500-1500 mPas claim 1 , as measured at 25° C. from 12 weight-% aqueous solution using Brookfield LV-DV1 viscometer.4. The composition of claim 1 , wherein the composition comprises 12 to 30 weight-% of the dissolved cationic starch.5. The composition of claim 1 , wherein the starch has a charge density of 0.1 to 1.0 meq/g (dry solids) claim 1 , preferably 0.2 to 0.8 meq/g (dry solids) claim 1 , measured at pH 7.6. The composition of claim 1 , wherein the cationic starch has an amylopectin content of at least 95 weight-% claim 1 , preferably at least 98 weight-% claim 1 , of dry starch.7. The composition of claim 1 , wherein the cationic starch is cationic waxy starch.8. The composition of claim 1 , wherein the composition has a viscosity of 1000 to 12 000 mPas claim 1 , or 2000 to 10 000 mPas claim 1 , as measured at 25° C. using Brookfield LV-DV1 viscometer.9. The composition of claim 1 , wherein the viscosity of the composition after storage of at least 40 days or at least 60 days claim 1 , preferably of at least 90 days claim 1 , more preferably of at least 120 days claim 1 , at a temperature of 25° C. claim 1 , differs at most 30% claim 1 , preferably at most 20% claim 1 , more preferably at most 15% claim 1 , from day 0 viscosity of the composition claim 1 , as measured at 25° C. using Brookfield LV-DV1 viscometer.10. The composition of claim 1 , wherein the viscosity of the composition after storage of 10 days or of 20 days claim 1 , preferably of 30 days claim 1 , more preferably of 60 days claim 1 , at a temperature of 5° C. ...

Подробнее
Номер записи: 96
24-03-2022 дата публикации

A PROCESS FOR PRODUCING PAPER OR BOARD AND A PRODUCT THEREOF

Номер: US20220090319A1
Автор: HEMMES Jan-Luiken, Lee Jinho, SALAS Diego
Принадлежит:

The present invention provides a process for producing paper or board, comprising slushing a stock of dried fibres in a slushing system comprising a pulper, and/or feeding a stock of never-dried fibres in a fiber line of an integrated paper mill; deflaking and/or refining the stock in a deflaker and/or a refiner, optionally diluting the deflaked and/or refined stock, directing the deflaked and/or refined stock to a headbox, forming a web, and drying the web, wherein a polymeric paper making additive is added to one or more of the stocks of dried fibres and never-dried fibres before deflaking and/or refining of the stock. The present invention further provides paper and board with improved properties. 1. A process for producing paper or board , comprising:slushing a stock of dried fibres in a slushing system comprising a pulper, and/orfeeding a stock of never-dried fibres in a fiber line of an integrated paper mill;deflaking and/or refining the stock in a deflaker and/or a refiner;optionally diluting the deflaked and/or refined stock;directing the deflaked and/or refined stock to a headbox, forming a web, and drying the web;wherein a polymeric paper making additive having an intrinsic viscosity of at least 50 ml/g is added to one or more of the stocks of dried fibres and never-dried fibres before deflaking and/or refining of the stock.2. The process according to claim 1 , wherein the polymeric paper making additive is added to the one or more of the stocks as a powder and/or as an aqueous dispersion.3. The process according to claim 1 , wherein the polymeric paper making additive is added to the stock of dried fibres claim 1 , preferably to the pulper.4. The process according to claim 1 , wherein the polymeric papermaking additive has an intrinsic viscosity of at least 100 ml/g claim 1 , preferably at least 200 ml/g.5. The process according to claim 1 , wherein the polymeric paper making additive has a viscosity of at most 10 000 mPas as measured from 1 weight-% ...

Подробнее
Номер записи: 97
24-03-2022 дата публикации

CREPED MULTI-PLY TISSUE PRODUCT

Номер: US20220090324A1
Автор: Curley Devon Gaynelle, LeCount Christopher Steven, McCormick Erin Ann, Sachs Mark William, STABELFELDT Sara Jane Wille, Vogel Nathan John, Vogt Kevin Joseph
Принадлежит:

Disclosed are multi-ply tissue products comprising a non-crosslinked binder that are durable, smooth and with low levels of Slough. In certain instances the creped tissue product have a geometric mean tensile (GMT) from about 700 to about 1,500 g/3″ a basis weight from about 45 to about 60 gsm and a Slough less than about 2.00 mg, more preferably less than about 1.50 mg, such as from about 0.10 to about 2.00, such as from about 0.25 to about 1.50 mg. The inventive tissue products also have good durability, such as a Durability Index from about 10.0 to about 20.0, smooth surfaces, such as a TS750 value from about 15.0 to 40.0 and low stiffness, such as a Stiffness Index less than about 10.0. 1. A creped , multi-ply tissue product comprising a first and a second creped tissue ply , the product having a basis weight from about 45 to about 60 grams per square meter (gsm) , a geometric mean tensile strength (GMT) from about 900 to about 1 ,700 q/3″ and a Slough less than about 2.00 mg.2. (canceled)3. The creped claim 1 , multi-ply tissue product of having a GMT from about 900 to about 1 claim 1 ,500 g/3″.4. The creped claim 1 , multi-ply tissue product of having a Slough from about 0.25 to about 1.50 mg.5. (canceled)6. The creped claim 1 , multi-ply tissue product of having a Durability Index from about 10.0 to about 20.0 and a Stiffness Index from about 4.0 to about 8.0.7. The creped claim 1 , multi-ply tissue product of further comprising a plurality of embossments disposed on the first or the second creped tissue ply.8. The creped claim 1 , multi-ply tissue product of claim 1 , wherein the first and the second tissue plies are through-air dried.9. A rolled tissue product comprising a spirally wound embossed claim 1 , multi-ply tissue web having a first outer surface comprising a plurality of embossments and a non-crosslinked latex polymer disposed thereon claim 1 , and a second outer surface comprising a plurality of embossments and a non-crosslinked latex polymer ...

Подробнее
Номер записи: 98
26-03-2015 дата публикации

CHARGE CONTROLLED PHCH

Номер: US20150083026A1
Автор: Andersson Lars, Gane Patrick A.C., Gantenbein Daniel, Laufmann Maximilian, Schoelkopf Joachim
Принадлежит:

The present invention concerns a process for preparing self-binding pigment particles from an aqueous suspension of a calcium carbonate containing material, wherein an anionic binder and at least one cationic polymer are mixed with the suspension. 2. The process of claim 1 , wherein in step d) the suspension of step a) is claim 1 , in a first step claim 1 , mixed with the binder of step b) claim 1 , and then claim 1 , in a second step claim 1 , is mixed with the at least one cationic polymer of step c).3. The process of claim 2 , wherein in the first step the suspension of step a) is mixed with a first part the binder of step b) claim 2 , the obtained mixture is ground and then mixed with the remaining part of the binder of step b).4. The process of claim 1 , wherein in step d) the binder of step b) is claim 1 , in a first step claim 1 , mixed with the cationic polymer of step c) claim 1 , and then claim 1 , in a second step claim 1 , is mixed with the suspension of step a).5. The process of claim 1 , wherein in step d) the suspension of step a) is mixed with the binder of step b) and the cationic polymer of step c) in one step.6. The process of claim 1 , wherein the cationic polymer is added in an amount such that the charge density of the obtained self-binding pigment particles is lower compared to self-binding pigment particles not containing the cationic polymer claim 1 , preferably the cationic polymer is added in an amount such that the charge density of the obtained self-binding pigment particle is between −100 and −5 μEq/g claim 1 , preferably between −80 and −10 μEq/g claim 1 , and more preferably between −70 and −15 μEq/g.7. The process of claim 1 , wherein the at least one calcium carbonate containing material is selected from calcium carbonate claim 1 , calcium carbonate containing minerals claim 1 , mixed calcium carbonate based fillers claim 1 , or mixtures thereof claim 1 , preferably the at least one calcium carbonate containing is calcium carbonate ...

Подробнее
Номер записи: 99
23-03-2017 дата публикации

TWISTING PAPER

Номер: US20170081061A1
Автор: Gauthier Gilles, LEMONNIER Anthony, VENOT Alexandra
Принадлежит: MUNKSJÖ OYJ

A twisting paper substrate to be waxed for the production of an opaque waxed paper wrapping, wherein the paper substrate includes a fibrous base, at least one opacifying additive and at least one binder reducing penetration of wax in the fibrous base during the production of the waxed paper substrate by application of wax on the paper substrate, wherein the difference of opacity of the paper substrate before and after Cobb test according to the rizinus Cobb method on one side to be waxed of the paper substrate is most preferably less than or equal to 8 percent. 1. A twisting paper substrate to be waxed for the production of an opaque waxed paper wrapping , wherein the paper substrate comprises a fibrous base , at least one opacifying additive and at least one binder reducing penetration of wax in the fibrous base during the production of the waxed paper substrate by application of wax on the paper substrate , wherein the difference of opacity of the paper substrate before and after the Cobb test according to the Rizinus Cobb method on one side to be waxed of the paper substrate is less than or equal to 8 percent.2. The paper substrate according to claim 1 , wherein said difference of opacity is less than or equal to 5 percent.3. The paper substrate according to claim 1 , wherein said difference of opacity is fulfilled regardless of the side of the paper substrate chosen for the application of the castor oil.4. The paper substrate according to claim 1 , wherein the at least one opacifying additive comprises TiOor zinc sulfide.5. The paper substrate according to claim 1 , wherein the at least one binder is a water soluble binder claim 1 , wherein the at least one water soluble binder is selected from PVOH or starch or a mixture of PVOH and starch.6. The paper substrate according to claim 1 , wherein the at least one binder is a water insoluble binder claim 1 , wherein the at least one water insoluble binder is selected from latex made from polymers and copolymers from ...

Подробнее
Номер записи: 100