GB2010940A - The Production of Flame-Proof Cellulosic Material - Google Patents

The Production of Flame-Proof Cellulosic Material

Info

Publication number
GB2010940A
GB2010940A GB7846275A GB7846275A GB2010940A GB 2010940 A GB2010940 A GB 2010940A GB 7846275 A GB7846275 A GB 7846275A GB 7846275 A GB7846275 A GB 7846275A GB 2010940 A GB2010940 A GB 2010940A
Authority
GB
United Kingdom
Prior art keywords
flame
cellulosic material
production
proof
impregnated
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.)
Granted
Application number
GB7846275A
Other versions
GB2010940B (en
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.)
Sodra Skogsagarna AB
Alby Klorat AB
Original Assignee
Sodra Skogsagarna AB
Alby Klorat AB
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 SE7713497A external-priority patent/SE420432B/en
Application filed by Sodra Skogsagarna AB, Alby Klorat AB filed Critical Sodra Skogsagarna AB
Publication of GB2010940A publication Critical patent/GB2010940A/en
Application granted granted Critical
Publication of GB2010940B publication Critical patent/GB2010940B/en
Expired legal-status Critical Current

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
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • D21C9/185—De-watering; Elimination of cooking or pulp-treating liquors from the pulp comprising at least one step where the pulp is suspended in a gaseous medium, e.g. flash drying
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Fireproofing Substances (AREA)

Abstract

The invention relates to a process for the production of a fibrous flame- proof cellulosic material, in which process an aqueous cellulosic material is impregnated with a flame-proofing cchemical which is dissolved or suspended in water, whereupon the material impregnated in this manner is comminuted and then subjected to drying and, optionally, curing in a system which includes a hot gas stream and in which the cellulosic fibres are present in essentially detached form.
GB7846275A 1977-11-29 1978-11-28 Processes for the production of flame-proof cellulosic material Expired GB2010940B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7713497A SE420432B (en) 1977-11-29 1977-11-29 PROCEDURE FOR MANUFACTURING FLAMFAST PAPER MATERIAL
SE7811348A SE423728B (en) 1977-11-29 1978-11-02 PROCEDURE FOR MANUFACTURING FLAMFAST CELLULO MATERIAL

Publications (2)

Publication Number Publication Date
GB2010940A true GB2010940A (en) 1979-07-04
GB2010940B GB2010940B (en) 1982-06-16

Family

ID=26656919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7846275A Expired GB2010940B (en) 1977-11-29 1978-11-28 Processes for the production of flame-proof cellulosic material

Country Status (7)

Country Link
JP (1) JPS5493078A (en)
CA (1) CA1134213A (en)
DE (1) DE2850496C2 (en)
FI (1) FI68099C (en)
FR (1) FR2410016B1 (en)
GB (1) GB2010940B (en)
NO (1) NO153065C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282932A (en) * 1992-10-19 1994-02-01 Canadian Liquid Air Ltd./Air Liquide Canada Ltee Process for pH and fire control in pulp balers
DE202011102812U1 (en) * 2011-06-14 2011-12-05 Hachemie Hamburger Chemikalien-Gesellschaft Mbh Thermal insulation material from recycled paper with flame retardant composition

Also Published As

Publication number Publication date
JPS5493078A (en) 1979-07-23
NO153065C (en) 1986-01-08
NO153065B (en) 1985-09-30
DE2850496A1 (en) 1979-05-31
FI68099C (en) 1985-07-10
DE2850496C2 (en) 1982-07-01
FI783637A (en) 1979-05-30
FR2410016B1 (en) 1985-07-26
FI68099B (en) 1985-03-29
CA1134213A (en) 1982-10-26
FR2410016A1 (en) 1979-06-22
NO783951L (en) 1979-05-30
GB2010940B (en) 1982-06-16

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961128