WO2002025007A3 - Light-stable lignocellulosic materials and their production_____ - Google Patents

Light-stable lignocellulosic materials and their production_____ Download PDF

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Publication number
WO2002025007A3
WO2002025007A3 PCT/CA2001/001295 CA0101295W WO0225007A3 WO 2002025007 A3 WO2002025007 A3 WO 2002025007A3 CA 0101295 W CA0101295 W CA 0101295W WO 0225007 A3 WO0225007 A3 WO 0225007A3
Authority
WO
WIPO (PCT)
Prior art keywords
amino
production
fibre
soluble
reactive
Prior art date
Application number
PCT/CA2001/001295
Other languages
French (fr)
Other versions
WO2002025007A2 (en
Inventor
Thomas Q Hu
Original Assignee
Pulp Paper Res Inst
Thomas Q Hu
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
Application filed by Pulp Paper Res Inst, Thomas Q Hu filed Critical Pulp Paper Res Inst
Priority to CA002421397A priority Critical patent/CA2421397A1/en
Priority to AU2001291551A priority patent/AU2001291551A1/en
Publication of WO2002025007A2 publication Critical patent/WO2002025007A2/en
Publication of WO2002025007A3 publication Critical patent/WO2002025007A3/en

Links

Classifications

    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1047—Conserving the bleached pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

A novel method for the production of light-stable lignocellulosic materials, in particular, the production of mechanical wood pulps with much improved light stability is described, as well as the resulting pulps of improved light stability and papers containing such pulps. The novel method involves the reaction of lignocellulosic materials such as bleached thermomechanical pulp (BTMP) with a water-soluble, fibre-reactive yellowing inhibitor possessing a primary or secondary amino (-NH2 or -NHR) functional group in an aqueous medium, or with a water-soluble, fibre-reactive hindered amine light stabilizer possessing a primary or secondary amino (-NH2 or -NHR) functional group in an alkaline peroxide bleaching medium or in an aqueous medium with a subsequent bleaching of the materials in an alkaline peroxide bleaching medium. Examples of such water-soluble, fibre-reactive yellowing inhibitors and hindered amine light stabilizers are the commercially available 4-amino-2,2,6,6-tetramethylpiperidine-N-oxyl (4-amino-TEMPO) and 4-amino-2,2,6,6-tetramethylpiperidine, respectively.
PCT/CA2001/001295 2000-09-18 2001-09-12 Light-stable lignocellulosic materials and their production_____ WO2002025007A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002421397A CA2421397A1 (en) 2000-09-18 2001-09-12 Light-stable lignocellulosic materials and their production
AU2001291551A AU2001291551A1 (en) 2000-09-18 2001-09-12 Light-stable lignocellulosic materials and their production

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US23343400P 2000-09-18 2000-09-18
US60/233,434 2000-09-18
US26988601P 2001-02-21 2001-02-21
US60/269,886 2001-02-21

Publications (2)

Publication Number Publication Date
WO2002025007A2 WO2002025007A2 (en) 2002-03-28
WO2002025007A3 true WO2002025007A3 (en) 2002-05-10

Family

ID=26926919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2001/001295 WO2002025007A2 (en) 2000-09-18 2001-09-12 Light-stable lignocellulosic materials and their production_____

Country Status (4)

Country Link
US (1) US20020056534A1 (en)
AU (1) AU2001291551A1 (en)
CA (1) CA2421397A1 (en)
WO (1) WO2002025007A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113389085B (en) * 2021-06-29 2023-02-10 王晓光 Green and environment-friendly chemi-mechanical pulp soaking additive and method for straw pulping by using same

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6789744B2 (en) * 2002-01-29 2004-09-14 Valeo Electrical Systems, Inc. Fluid heater with a variable mass flow path
AU2003275827A1 (en) * 2002-10-23 2004-05-13 Pulp And Paper Research Institute Of Canada Light-stable and process-stable lignocellulosic materials and their production
CA2517334A1 (en) * 2003-02-26 2004-09-10 Ciba Specialty Chemicals Holding Inc. Water compatible sterically hindered alkoxyamines and hydroxy substituted alkoxyamines
US7550599B2 (en) * 2003-02-26 2009-06-23 Ciba Specialty Chemicals Corporation Water compatible sterically hindered alkoxyamines and hydroxy substituted alkoxyamines
US7125469B2 (en) * 2003-10-16 2006-10-24 The Procter & Gamble Company Temporary wet strength resins
FI20031904A (en) * 2003-12-23 2005-06-24 Kemira Oyj Process for modifying a lignocellulosic product
WO2005082974A1 (en) * 2004-02-26 2005-09-09 Pulp And Paper Research Institute Of Canada Epichlorohydrin based polymers containing primary amino groups as additives in papermaking
JP4963472B2 (en) * 2005-02-15 2012-06-27 チバ ホールディング インコーポレーテッド Stabilization of natural composites
US7259218B2 (en) * 2005-02-17 2007-08-21 The Procter + Gamble Company Processes for making temporary wet strength additives
CA2755586C (en) * 2009-03-20 2015-06-23 Fpinnovations Cellulose materials with novel properties
JP6557977B2 (en) * 2015-01-15 2019-08-14 Jnc株式会社 Liquid crystal composition and liquid crystal display element containing nitrogen-containing ring compound

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832277A (en) * 1972-02-24 1974-08-27 Fmc Corp Hydroxylamine treated hemicellulose-containing regenerated cellulose product
US5360515A (en) * 1993-08-25 1994-11-01 The Research Foundation Of The State University Of New York Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps
US5529896A (en) * 1993-06-22 1996-06-25 Fuji Photo Film Co., Ltd. Silver halide photographic material
WO1999005108A1 (en) * 1997-07-23 1999-02-04 Ciba Specialty Chemicals Holding Inc. Inhibition of pulp and paper yellowing using nitroxides and other coadditives

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080754A (en) * 1990-07-20 1992-01-14 The Research Foundation Of State University Of Ny Method for reducing brightness reversion in lignin-containing pulps and article of manufacture thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832277A (en) * 1972-02-24 1974-08-27 Fmc Corp Hydroxylamine treated hemicellulose-containing regenerated cellulose product
US5529896A (en) * 1993-06-22 1996-06-25 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5360515A (en) * 1993-08-25 1994-11-01 The Research Foundation Of The State University Of New York Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps
WO1999005108A1 (en) * 1997-07-23 1999-02-04 Ciba Specialty Chemicals Holding Inc. Inhibition of pulp and paper yellowing using nitroxides and other coadditives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113389085B (en) * 2021-06-29 2023-02-10 王晓光 Green and environment-friendly chemi-mechanical pulp soaking additive and method for straw pulping by using same

Also Published As

Publication number Publication date
US20020056534A1 (en) 2002-05-16
WO2002025007A2 (en) 2002-03-28
CA2421397A1 (en) 2002-03-28
AU2001291551A1 (en) 2002-04-02

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