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ES8104065A1 - Process for producing hard fibreboards from lignocellulose - Google Patents

Process for producing hard fibreboards from lignocellulose

Info

Publication number
ES8104065A1
ES8104065A1 ES494324A ES494324A ES8104065A1 ES 8104065 A1 ES8104065 A1 ES 8104065A1 ES 494324 A ES494324 A ES 494324A ES 494324 A ES494324 A ES 494324A ES 8104065 A1 ES8104065 A1 ES 8104065A1
Authority
ES
Spain
Prior art keywords
producing hard
lignocellulose
resin
mpa
viscosity
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.)
Expired
Application number
ES494324A
Other languages
Spanish (es)
Other versions
ES494324A0 (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.)
Patentes y Novedades SA
Original Assignee
Patentes y Novedades SA
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 Patentes y Novedades SA filed Critical Patentes y Novedades SA
Priority to ES494324A priority Critical patent/ES494324A0/en
Publication of ES8104065A1 publication Critical patent/ES8104065A1/en
Publication of ES494324A0 publication Critical patent/ES494324A0/en
Priority to MX187639A priority patent/MX157313A/en
Priority to AT0330281A priority patent/AT374518B/en
Priority to CA000382881A priority patent/CA1168416A/en
Priority to AR286359A priority patent/AR229681A1/en
Priority to SE8104756A priority patent/SE442102B/en
Priority to NO812761A priority patent/NO156291C/en
Priority to DE19813132467 priority patent/DE3132467A1/en
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

The invention relates to a process for producing hard fibreboards by impregnating a comminuted wood fibre material with a binder mixture having a resin-solids content of approximately 50% and a viscosity of < 30 mPa.s. The resin is a non-tacky urea-formaldehyde resin with a solids content of 60 to 70% and a viscosity which, at 25 DEG C, is in the range from 150 to 300 mPa.s, and the proportion of free formaldehyde is < 1%. The dry, impregnated fibre material is then pressed conventionally.
ES494324A 1980-08-18 1980-08-18 IMPROVEMENTS IN THE MANUFACTURE OF LIGNOCELLULOSIC MATERIAL FIBER BOARDS Granted ES494324A0 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES494324A ES494324A0 (en) 1980-08-18 1980-08-18 IMPROVEMENTS IN THE MANUFACTURE OF LIGNOCELLULOSIC MATERIAL FIBER BOARDS
MX187639A MX157313A (en) 1980-08-18 1981-06-04 IMPROVEMENTS IN THE MANUFACTURE OF LIGNOCELLULOSIC MATERIAL FIBER BOARDS
AT0330281A AT374518B (en) 1980-08-18 1981-07-27 METHOD FOR PRODUCING HARD FIBERBOARDS FROM LIGNOCELLULOSE
CA000382881A CA1168416A (en) 1980-08-18 1981-07-30 Process for manufacturing lignocellulosic material fibreboard
AR286359A AR229681A1 (en) 1980-08-18 1981-08-06 MANUFACTURING PROCEDURE FOR LIGNOCELLULOSIC MATERIAL FIBER BOARDS
SE8104756A SE442102B (en) 1980-08-18 1981-08-07 PROCEDURE FOR MANUFACTURING FIBER PLATES OF LIGNOCELLULOSALLY MATERIAL
NO812761A NO156291C (en) 1980-08-18 1981-08-14 PROCEDURE FOR THE MANUFACTURE OF HARD AND HALF-HARD FIBER PLATES.
DE19813132467 DE3132467A1 (en) 1980-08-18 1981-08-17 Process for producing hard fibreboards from lignocellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES494324A ES494324A0 (en) 1980-08-18 1980-08-18 IMPROVEMENTS IN THE MANUFACTURE OF LIGNOCELLULOSIC MATERIAL FIBER BOARDS

Publications (2)

Publication Number Publication Date
ES8104065A1 true ES8104065A1 (en) 1981-04-01
ES494324A0 ES494324A0 (en) 1981-04-01

Family

ID=8480973

Family Applications (1)

Application Number Title Priority Date Filing Date
ES494324A Granted ES494324A0 (en) 1980-08-18 1980-08-18 IMPROVEMENTS IN THE MANUFACTURE OF LIGNOCELLULOSIC MATERIAL FIBER BOARDS

Country Status (8)

Country Link
AR (1) AR229681A1 (en)
AT (1) AT374518B (en)
CA (1) CA1168416A (en)
DE (1) DE3132467A1 (en)
ES (1) ES494324A0 (en)
MX (1) MX157313A (en)
NO (1) NO156291C (en)
SE (1) SE442102B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390396B (en) * 1987-10-23 1990-04-25 Isovolta METHOD FOR PRODUCING A PLANT-SHAPED PLASTIC RESIN HIGH-PRESSURE MOLDED PART, AND PRE-PRODUCT FOR USE IN SUCH A METHOD

Also Published As

Publication number Publication date
ATA330281A (en) 1983-09-15
CA1168416A (en) 1984-06-05
NO812761L (en) 1982-02-19
AT374518B (en) 1984-05-10
ES494324A0 (en) 1981-04-01
AR229681A1 (en) 1983-10-31
DE3132467A1 (en) 1982-06-03
NO156291B (en) 1987-05-18
NO156291C (en) 1987-08-26
SE442102B (en) 1985-12-02
MX157313A (en) 1988-11-15
SE8104756L (en) 1982-02-19

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Legal Events

Date Code Title Description
GC1A Exploitation certificate registered application without search report

Effective date: 19970702