CA2169448A1 - Composes dithio utilises comme agents anti-jaunissement pour les pates a papier et le papier - Google Patents

Composes dithio utilises comme agents anti-jaunissement pour les pates a papier et le papier

Info

Publication number
CA2169448A1
CA2169448A1 CA 2169448 CA2169448A CA2169448A1 CA 2169448 A1 CA2169448 A1 CA 2169448A1 CA 2169448 CA2169448 CA 2169448 CA 2169448 A CA2169448 A CA 2169448A CA 2169448 A1 CA2169448 A1 CA 2169448A1
Authority
CA
Canada
Prior art keywords
polymer
thiol
pulp
molecular weight
polyethylene glycol
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.)
Abandoned
Application number
CA 2169448
Other languages
English (en)
Inventor
Jeffrey K. S. Wan
M. Catherine Depew
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.)
MICROWAVE CHEMISTRY Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2169448A1 publication Critical patent/CA2169448A1/fr
Abandoned 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
    • 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
    • D21H21/143—Agents preventing ageing of paper, e.g. radiation absorbing substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
    • C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
    • C08G65/332—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof
    • C08G65/3324—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof cyclic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
    • C08G65/334—Polymers modified by chemical after-treatment with organic compounds containing sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides
    • 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

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne de nouveaux composés antioxydants polymères pratiquement sans odeur et contenant des groupes thiol, qui permettent de diminuer la perte de brillance ou le jaunissement des pâtes à papier et du papier. Les nouveaux composés ont une ossature polymère portant des groupes thiolactate ou thioglycolate greffés à leurs extrémités et ils sont solubles dans l'eau et dans l'alcool.
CA 2169448 1994-06-20 1995-06-19 Composes dithio utilises comme agents anti-jaunissement pour les pates a papier et le papier Abandoned CA2169448A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/261,275 1994-06-20
US26127594A 1994-07-25 1994-07-25

Publications (1)

Publication Number Publication Date
CA2169448A1 true CA2169448A1 (fr) 1995-12-28

Family

ID=22992601

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2169448 Abandoned CA2169448A1 (fr) 1994-06-20 1995-06-19 Composes dithio utilises comme agents anti-jaunissement pour les pates a papier et le papier

Country Status (2)

Country Link
CA (1) CA2169448A1 (fr)
WO (1) WO1995035331A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0734716B1 (fr) * 1995-03-30 1999-08-25 Kao Corporation Composition pour l'ondulation permanente des cheveux humains
GB9718530D0 (en) * 1997-09-02 1997-11-05 Clariant Int Ltd Lining material and method for coating a substrate with such lining material
US6527914B1 (en) 2002-01-30 2003-03-04 Ondeo Nalco Company Method of enhancing brightness and brightness stability of paper made with mechanical pulp
AU2003224454A1 (en) * 2002-02-28 2003-09-09 Showa Denko K.K. Thiol compound, photopolymerization initiator composition and photosensitive composition

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL239215A (fr) * 1958-05-19
US2992210A (en) * 1958-07-09 1961-07-11 Rohm & Haas Process for the preparation of polymers containing mercapto groupings
US3284442A (en) * 1962-04-03 1966-11-08 Nat Starch Chem Corp Novel starch ester derivatives
US3271387A (en) * 1962-10-10 1966-09-06 Union Starch & Refining Co Inc High viscosity starch derivatives
US4307225A (en) * 1978-12-05 1981-12-22 Phillips Petroleum Company Preparation of alkyl mercaptocarboxylate/dialkyl thiodicarboxylate mixture using sulfur and/or water cocatalyst
US4565854A (en) * 1983-04-07 1986-01-21 Kuraray Co., Ltd. Polymer having thiol end group
US5629047A (en) * 1990-08-06 1997-05-13 Gencorp Inc. Method of making functionalized styrene butadiene type latex binders

Also Published As

Publication number Publication date
WO1995035331A1 (fr) 1995-12-28

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Legal Events

Date Code Title Description
FZDE Dead