GB2039919A - Method of manufacturing bonded products of cellulose or cellulose derivatives - Google Patents

Method of manufacturing bonded products of cellulose or cellulose derivatives

Info

Publication number
GB2039919A
GB2039919A GB8005428A GB8005428A GB2039919A GB 2039919 A GB2039919 A GB 2039919A GB 8005428 A GB8005428 A GB 8005428A GB 8005428 A GB8005428 A GB 8005428A GB 2039919 A GB2039919 A GB 2039919A
Authority
GB
United Kingdom
Prior art keywords
cellulose
reduced
aldehyde
bonded products
manufacturing bonded
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
GB8005428A
Other versions
GB2039919B (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.)
Individual
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 GB2039919A publication Critical patent/GB2039919A/en
Application granted granted Critical
Publication of GB2039919B publication Critical patent/GB2039919B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/003—Pretreatment of moulding material for reducing formaldehyde gas emission

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

In a method of manufacturing bonded products, comprised completely or partially of cellulose or a cellulose derivative, such as saw dust, wood chips, paper or vegetable fibres, a condensation resin between an aldehyde, preferably form aldehyde, and urea, melamine or aphenol type is used as an adhesive. The product is irradiated to at most 5 M rad with ionising radiation. Then the material will undergo a certain cross-linking. Residual quantities of uncured adhesive substances are reduced at the same time. The radiation dose is adjusted so that residual quantities of aldehyde in the material will be reduced. Preferably, also the residual quantity of formaldehyde in the material is reduced. By adding additives containing olefinic, acrylic or comparable groups the extent to which cross-linking takes place is increased.
GB8005428A 1978-07-06 1978-07-06 Method of manufacturing bonded products of cellulose or cellulose derivatives Expired GB2039919B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1978/000014 WO1980000142A1 (en) 1978-07-06 1978-07-06 A method of manufacturing bonded products of cellulose or cellulose derivatives

Publications (2)

Publication Number Publication Date
GB2039919A true GB2039919A (en) 1980-08-20
GB2039919B GB2039919B (en) 1983-02-09

Family

ID=20333567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8005428A Expired GB2039919B (en) 1978-07-06 1978-07-06 Method of manufacturing bonded products of cellulose or cellulose derivatives

Country Status (3)

Country Link
DE (1) DE2857545A1 (en)
GB (1) GB2039919B (en)
WO (1) WO1980000142A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8624557D0 (en) * 1986-10-14 1986-11-19 Borden Uk Ltd Manufacture of fibreboard
DE19738953C1 (en) * 1997-09-05 1999-03-04 Fritz Egger Ges M B H & Co Method and device for the production of molded articles from comminuted material
EP2508263B1 (en) * 2005-03-24 2015-11-25 Xyleco, Inc. Method of densifying fibrous material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668133A (en) * 1953-04-13 1954-02-02 United Shoe Machinery Corp Adhesive bonding processes
US3077417A (en) * 1958-02-05 1963-02-12 Dow Chemical Co Stabilization of wood and wood products with acrylic-like compounds
BE587866A (en) * 1959-04-01 1900-01-01
US3616028A (en) * 1967-04-04 1971-10-26 Weyerhaeuser Co Process of bonding resin-impregnated overlay material to a coated substrate material utilizing high-energy radiation
CH528957A (en) * 1969-06-04 1972-10-15 Lonza Ag Process for the production of cellulose-containing material with improved abrasion resistance
SE403583B (en) * 1977-01-07 1978-08-28 Akesson Arne PROCEDURE IN THE MANUFACTURE OF GLUE PRODUCTS OF CELLULOSA OR A CELLULOSA DERIVATIVE

Also Published As

Publication number Publication date
WO1980000142A1 (en) 1980-02-07
DE2857545A1 (en) 1980-11-27
GB2039919B (en) 1983-02-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee