WO2019166929A1 - Method for production of a product comprising a first ply - Google Patents
Method for production of a product comprising a first ply Download PDFInfo
- Publication number
- WO2019166929A1 WO2019166929A1 PCT/IB2019/051484 IB2019051484W WO2019166929A1 WO 2019166929 A1 WO2019166929 A1 WO 2019166929A1 IB 2019051484 W IB2019051484 W IB 2019051484W WO 2019166929 A1 WO2019166929 A1 WO 2019166929A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- additive
- agents
- suspension
- ply
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/18—Highly hydrated, swollen or fibrillatable fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
- D21H13/08—Synthetic cellulose fibres from regenerated cellulose
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
- D21H21/52—Additives of definite length or shape
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/24—Addition to the formed paper during paper manufacture
- D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/24—Addition to the formed paper during paper manufacture
- D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper
- D21H23/28—Addition before the dryer section, e.g. at the wet end or press section
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
- D21H23/48—Curtain coaters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020542799A JP7308851B2 (en) | 2018-02-27 | 2019-02-25 | Method of manufacturing an article including a first ply |
CA3087425A CA3087425A1 (en) | 2018-02-27 | 2019-02-25 | Method for production of a product comprising a first ply |
CN201980008603.7A CN111601926B (en) | 2018-02-27 | 2019-02-25 | Method for producing a product comprising a first sheet layer |
BR112020017203-0A BR112020017203A2 (en) | 2018-02-27 | 2019-02-25 | METHOD FOR PRODUCING A PRODUCT UNDERSTANDING A FIRST SHEET (LAYER) |
US16/975,786 US11319672B2 (en) | 2018-02-27 | 2019-02-25 | Method for production of a product comprising a first ply |
EP19761191.6A EP3759278A4 (en) | 2018-02-27 | 2019-02-25 | Method for production of a product comprising a first ply |
US17/658,308 US20220228319A1 (en) | 2018-02-27 | 2022-04-07 | Method for production of a product comprising a first ply |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1850222A SE542093C2 (en) | 2018-02-27 | 2018-02-27 | Method for production of a paper, board or non-woven product comprising a first ply |
SE1850222-9 | 2018-02-27 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/975,786 A-371-Of-International US11319672B2 (en) | 2018-02-27 | 2019-02-25 | Method for production of a product comprising a first ply |
US17/658,308 Division US20220228319A1 (en) | 2018-02-27 | 2022-04-07 | Method for production of a product comprising a first ply |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019166929A1 true WO2019166929A1 (en) | 2019-09-06 |
Family
ID=67805677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2019/051484 WO2019166929A1 (en) | 2018-02-27 | 2019-02-25 | Method for production of a product comprising a first ply |
Country Status (8)
Country | Link |
---|---|
US (2) | US11319672B2 (en) |
EP (1) | EP3759278A4 (en) |
JP (1) | JP7308851B2 (en) |
CN (1) | CN111601926B (en) |
BR (1) | BR112020017203A2 (en) |
CA (1) | CA3087425A1 (en) |
SE (1) | SE542093C2 (en) |
WO (1) | WO2019166929A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210054570A1 (en) * | 2018-02-02 | 2021-02-25 | Stora Enso Oyj | Process for production of film comprising microfibrillated cellulose |
US11136721B2 (en) | 2010-11-15 | 2021-10-05 | Fiberlean Technologies Limited | Compositions |
US11162219B2 (en) | 2009-05-15 | 2021-11-02 | Fiberlean Technologies Limited | Paper filler composition |
WO2021224778A1 (en) * | 2020-05-04 | 2021-11-11 | Chang Yiu Wen | Method, appratus, and system of a fibrillated nanocellulose material |
US11512020B2 (en) | 2016-04-04 | 2022-11-29 | Fiberlean Technologies Limited | Compositions and methods for providing increased strength in ceiling, flooring, and building products |
US11549216B2 (en) | 2020-11-11 | 2023-01-10 | Sappi North America, Inc. | Oil/grease resistant paper products |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024084378A1 (en) * | 2022-10-16 | 2024-04-25 | Chang Yiu Wen | Advanced method, apparatus, and system of a fibrillated nanocellulose material |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120219816A1 (en) | 2009-11-06 | 2012-08-30 | Stora Enso Oyj | Process for the production of a paper or board product and a paper or board produced according to the process |
US20130292075A1 (en) * | 2011-01-20 | 2013-11-07 | Upm-Kymmene Corporation | Method for improving strength and retention, and paper product |
WO2014029917A1 (en) | 2012-08-21 | 2014-02-27 | Upm-Kymmene Corporation | Method for making a paper product by multilayer technique, and paper product |
AU2016203734A1 (en) | 2015-06-03 | 2016-12-22 | Opal Packaging Australia Pty Ltd | Paper sheet and a process for the manufacture thereof |
WO2017046749A1 (en) * | 2015-09-17 | 2017-03-23 | Stora Enso Oyj | Flexible microfibrillated film formation |
US20170284030A1 (en) * | 2016-04-05 | 2017-10-05 | Fiberlean Technologies Limited | Paper and paperboard products |
EP3234260A1 (en) | 2014-12-18 | 2017-10-25 | Stora Enso Oyj | Process for the production of a coated substrate comprising cellulosic fibres |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS496207A (en) * | 1972-05-12 | 1974-01-19 | ||
JPH09268497A (en) * | 1996-03-26 | 1997-10-14 | Arakawa Chem Ind Co Ltd | Production of combination paper |
EP1936032A1 (en) | 2006-12-18 | 2008-06-25 | Akzo Nobel N.V. | Method of producing a paper product |
FI121391B (en) * | 2007-09-27 | 2010-10-29 | Metso Paper Inc | Method and arrangement for coating a web of fibrous material with at least two layers of processing agent |
US20100065236A1 (en) * | 2008-09-17 | 2010-03-18 | Marielle Henriksson | Method of producing and the use of microfibrillated paper |
SE0950819A1 (en) | 2009-11-03 | 2011-05-04 | Stora Enso Oyj | A coated substrate, a process for producing a coated substrate, a package and a dispersion coating |
FI125713B (en) * | 2010-10-01 | 2016-01-15 | Upm Kymmene Corp | A method for improving the runnability of a wet paper web and paper |
WO2016185332A1 (en) * | 2015-05-15 | 2016-11-24 | Stora Enso Oyj | Paper or board material having a surface coating layer comprising a mixture of microfibrillated polysaccharide and filler |
FR3048436B1 (en) * | 2016-03-03 | 2018-03-23 | S.P.C.M. Sa | PROCESS FOR PRODUCING PAPER AND CARDBOARD |
-
2018
- 2018-02-27 SE SE1850222A patent/SE542093C2/en unknown
-
2019
- 2019-02-25 CN CN201980008603.7A patent/CN111601926B/en active Active
- 2019-02-25 CA CA3087425A patent/CA3087425A1/en active Pending
- 2019-02-25 US US16/975,786 patent/US11319672B2/en active Active
- 2019-02-25 WO PCT/IB2019/051484 patent/WO2019166929A1/en unknown
- 2019-02-25 JP JP2020542799A patent/JP7308851B2/en active Active
- 2019-02-25 BR BR112020017203-0A patent/BR112020017203A2/en unknown
- 2019-02-25 EP EP19761191.6A patent/EP3759278A4/en active Pending
-
2022
- 2022-04-07 US US17/658,308 patent/US20220228319A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120219816A1 (en) | 2009-11-06 | 2012-08-30 | Stora Enso Oyj | Process for the production of a paper or board product and a paper or board produced according to the process |
US20130292075A1 (en) * | 2011-01-20 | 2013-11-07 | Upm-Kymmene Corporation | Method for improving strength and retention, and paper product |
WO2014029917A1 (en) | 2012-08-21 | 2014-02-27 | Upm-Kymmene Corporation | Method for making a paper product by multilayer technique, and paper product |
EP3234260A1 (en) | 2014-12-18 | 2017-10-25 | Stora Enso Oyj | Process for the production of a coated substrate comprising cellulosic fibres |
US20170342661A1 (en) * | 2014-12-18 | 2017-11-30 | Stora Enso Oyj | Process for the production of a coated substance comprising cellulosic fibres |
AU2016203734A1 (en) | 2015-06-03 | 2016-12-22 | Opal Packaging Australia Pty Ltd | Paper sheet and a process for the manufacture thereof |
WO2017046749A1 (en) * | 2015-09-17 | 2017-03-23 | Stora Enso Oyj | Flexible microfibrillated film formation |
US20170284030A1 (en) * | 2016-04-05 | 2017-10-05 | Fiberlean Technologies Limited | Paper and paperboard products |
Non-Patent Citations (3)
Title |
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CHINGA-CARRASCO, G.: "Cellulose fibres, nanofibrils and microfibrils,: The morphological sequence of MFC components from a plant physiology and fibre technology point of view", NANOSCALE RESEARCH LETTERS, vol. 6, 2011, pages 417, XP055021830, DOI: 10.1186/1556-276X-6-417 |
FENGEL, D.: "Ultrastructural behavior of cell wall polysaccharides", TAPPI J., vol. 53, no. 3, March 1970 (1970-03-01) |
See also references of EP3759278A4 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11162219B2 (en) | 2009-05-15 | 2021-11-02 | Fiberlean Technologies Limited | Paper filler composition |
US11377791B2 (en) | 2009-05-15 | 2022-07-05 | Fiberlean Technologies Limited | Paper filler composition |
US11732411B2 (en) | 2009-05-15 | 2023-08-22 | Fiberlean Technologies Limited | Paper filler composition |
US11136721B2 (en) | 2010-11-15 | 2021-10-05 | Fiberlean Technologies Limited | Compositions |
US11655594B2 (en) | 2010-11-15 | 2023-05-23 | Fiberlean Technologies Limited | Compositions |
US11512020B2 (en) | 2016-04-04 | 2022-11-29 | Fiberlean Technologies Limited | Compositions and methods for providing increased strength in ceiling, flooring, and building products |
US20210054570A1 (en) * | 2018-02-02 | 2021-02-25 | Stora Enso Oyj | Process for production of film comprising microfibrillated cellulose |
US11834793B2 (en) * | 2018-02-02 | 2023-12-05 | Stora Enso Oyj | Process for production of film comprising microfibrillated cellulose |
WO2021224778A1 (en) * | 2020-05-04 | 2021-11-11 | Chang Yiu Wen | Method, appratus, and system of a fibrillated nanocellulose material |
TWI816115B (en) * | 2020-05-04 | 2023-09-21 | 大仁 陳 | Method, apparatus, and system of a fibrillated nanocellulose material |
US11549216B2 (en) | 2020-11-11 | 2023-01-10 | Sappi North America, Inc. | Oil/grease resistant paper products |
Also Published As
Publication number | Publication date |
---|---|
JP7308851B2 (en) | 2023-07-14 |
JP2021517611A (en) | 2021-07-26 |
CA3087425A1 (en) | 2019-09-06 |
CN111601926A (en) | 2020-08-28 |
SE1850222A1 (en) | 2019-08-28 |
US20200407918A1 (en) | 2020-12-31 |
US11319672B2 (en) | 2022-05-03 |
SE542093C2 (en) | 2020-02-25 |
CN111601926B (en) | 2022-11-08 |
EP3759278A1 (en) | 2021-01-06 |
EP3759278A4 (en) | 2021-12-01 |
US20220228319A1 (en) | 2022-07-21 |
BR112020017203A2 (en) | 2020-12-22 |
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