EP4097297A4 - Treatment of bacterial nanocellulose - Google Patents

Treatment of bacterial nanocellulose Download PDF

Info

Publication number
EP4097297A4
EP4097297A4 EP21746315.7A EP21746315A EP4097297A4 EP 4097297 A4 EP4097297 A4 EP 4097297A4 EP 21746315 A EP21746315 A EP 21746315A EP 4097297 A4 EP4097297 A4 EP 4097297A4
Authority
EP
European Patent Office
Prior art keywords
treatment
bacterial nanocellulose
nanocellulose
bacterial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21746315.7A
Other languages
German (de)
French (fr)
Other versions
EP4097297A1 (en
Inventor
Gary Cass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cass Materials Pty Ltd
Original Assignee
Cass Materials Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2020900276A external-priority patent/AU2020900276A0/en
Application filed by Cass Materials Pty Ltd filed Critical Cass Materials Pty Ltd
Publication of EP4097297A1 publication Critical patent/EP4097297A1/en
Publication of EP4097297A4 publication Critical patent/EP4097297A4/en
Pending legal-status Critical Current

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
    • 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
    • D21H11/20—Chemically or biochemically modified 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/003—Preparation of cellulose solutions, i.e. dopes, with different possible solvents, e.g. ionic liquids
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/007—Modification of pulp properties by mechanical or physical means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
    • D21B1/066—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being pulp sheets
    • D21B1/068—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being pulp sheets by cutting actions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Nonwoven Fabrics (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
EP21746315.7A 2020-01-31 2021-01-28 Treatment of bacterial nanocellulose Pending EP4097297A4 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2020900276A AU2020900276A0 (en) 2020-01-31 Cellulose Dissolution
AU2020902179A AU2020902179A0 (en) 2020-06-29 Treatment of bacterial nanocellulose
AU2020904449A AU2020904449A0 (en) 2020-12-01 Treatment of bacterial nanocellulose
PCT/AU2021/050050 WO2021151149A1 (en) 2020-01-31 2021-01-28 Treatment of bacterial nanocellulose

Publications (2)

Publication Number Publication Date
EP4097297A1 EP4097297A1 (en) 2022-12-07
EP4097297A4 true EP4097297A4 (en) 2024-02-28

Family

ID=77077984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21746315.7A Pending EP4097297A4 (en) 2020-01-31 2021-01-28 Treatment of bacterial nanocellulose

Country Status (3)

Country Link
EP (1) EP4097297A4 (en)
AU (1) AU2021213023A1 (en)
WO (1) WO2021151149A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023047018A1 (en) * 2021-09-21 2023-03-30 Upm-Kymmene Corporation A process for preparing an alkaline cellulose dope

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10158303A (en) * 1996-11-28 1998-06-16 Bio Polymer Res:Kk Alkali solution or gelled product of fine fibrous cellulose
CN102671236A (en) * 2012-05-03 2012-09-19 北京科技大学 Method for preparing nanofiber reinforcement hydrogel bionic artificial meniscus composite material
CN107115563A (en) * 2016-10-19 2017-09-01 北京在声生物科技有限公司 A kind of bacteria cellulose sticking patch and preparation method available for gynaecology's class
CN109970996A (en) * 2018-10-08 2019-07-05 天津科技大学 A kind of method of dissolution of bacteria cellulose

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09165403A (en) * 1995-12-18 1997-06-24 Bio Polymer Res:Kk Method for freezing bacterial cellulose
CN106223089B (en) * 2016-07-22 2017-09-01 扬州大学 Cellulose nano-fibrous method is extracted in a kind of stem from humulus grass
CN108676099A (en) * 2018-05-17 2018-10-19 天津科技大学 A kind of preparation method of oxidizing bacteria cellulose solution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10158303A (en) * 1996-11-28 1998-06-16 Bio Polymer Res:Kk Alkali solution or gelled product of fine fibrous cellulose
CN102671236A (en) * 2012-05-03 2012-09-19 北京科技大学 Method for preparing nanofiber reinforcement hydrogel bionic artificial meniscus composite material
CN107115563A (en) * 2016-10-19 2017-09-01 北京在声生物科技有限公司 A kind of bacteria cellulose sticking patch and preparation method available for gynaecology's class
CN109970996A (en) * 2018-10-08 2019-07-05 天津科技大学 A kind of method of dissolution of bacteria cellulose

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BUDTOVA TATIANA ET AL: "Cellulose in NaOH-water based solvents: a review", CELLULOSE, SPRINGER NETHERLANDS, NETHERLANDS, vol. 23, no. 1, 5 November 2015 (2015-11-05), pages 5 - 55, XP035825653, ISSN: 0969-0239, [retrieved on 20151105], DOI: 10.1007/S10570-015-0779-8 *
See also references of WO2021151149A1 *

Also Published As

Publication number Publication date
EP4097297A1 (en) 2022-12-07
AU2021213023A1 (en) 2022-09-15
WO2021151149A1 (en) 2021-08-05

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