GB1086770A - Improvements in the manufacture of multi-layer and like boards - Google Patents

Improvements in the manufacture of multi-layer and like boards

Info

Publication number
GB1086770A
GB1086770A GB3994966A GB3994966A GB1086770A GB 1086770 A GB1086770 A GB 1086770A GB 3994966 A GB3994966 A GB 3994966A GB 3994966 A GB3994966 A GB 3994966A GB 1086770 A GB1086770 A GB 1086770A
Authority
GB
United Kingdom
Prior art keywords
layer
formaldehyde
phenol
binder
urea
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
GB3994966A
Inventor
Bertram Thomas King
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.)
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
Original Assignee
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
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 Leuna Werke GmbH, Leuna Werke Walter Ulbright Germany VEB filed Critical Leuna Werke GmbH
Priority to GB3994966A priority Critical patent/GB1086770A/en
Publication of GB1086770A publication Critical patent/GB1086770A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D21J1/16—Special fibreboard
    • 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)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

Weatherproof multilayer chipboard is formed by hot-pressing wood chips or lignified vegetable fibres, the middle-layer binder being ureaformaldehyde resins and the surface-layer binder being phenol-formaldehyde or resorcinol-formaldehyde or mixtures thereof. The phenol may be carbolic acid, cresol or xylenol. Vegetable fibres may be flax, straw or bagasse. The wood chips may be pinewood, 0.4-0.5 mm. by 3-5 mm. by 20-35 mm. for the middle layer, and 0.2 mm. by 2 mm. by 8-15 mm. for the surface layer. The middle layer may be sawmill waste. The urea-formaldehyde glue may contain paraffin emulsion and hardener, e.g. NH4Cl, hexamethylenetetramine, and urea. The phenol-formaldehyde binder may contain paraffin emulsion. The chipboard may be compressed to 20 mm. thickness in an hydraulic hotplate press with pressure 15 kp./cm.2 for 7-8 minutes at 150-160 DEG C.
GB3994966A 1966-09-07 1966-09-07 Improvements in the manufacture of multi-layer and like boards Expired GB1086770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3994966A GB1086770A (en) 1966-09-07 1966-09-07 Improvements in the manufacture of multi-layer and like boards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3994966A GB1086770A (en) 1966-09-07 1966-09-07 Improvements in the manufacture of multi-layer and like boards

Publications (1)

Publication Number Publication Date
GB1086770A true GB1086770A (en) 1967-10-11

Family

ID=10412376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3994966A Expired GB1086770A (en) 1966-09-07 1966-09-07 Improvements in the manufacture of multi-layer and like boards

Country Status (1)

Country Link
GB (1) GB1086770A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108247809A (en) * 2018-03-12 2018-07-06 湖州知维技术服务有限公司 A kind of floor surface treatment process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108247809A (en) * 2018-03-12 2018-07-06 湖州知维技术服务有限公司 A kind of floor surface treatment process

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