EP1161498A1 - Procede et produit se rapportant au bois d'oeuvre - Google Patents

Procede et produit se rapportant au bois d'oeuvre

Info

Publication number
EP1161498A1
EP1161498A1 EP00908809A EP00908809A EP1161498A1 EP 1161498 A1 EP1161498 A1 EP 1161498A1 EP 00908809 A EP00908809 A EP 00908809A EP 00908809 A EP00908809 A EP 00908809A EP 1161498 A1 EP1161498 A1 EP 1161498A1
Authority
EP
European Patent Office
Prior art keywords
binding mixture
mdi
mixture
catalyst
binding
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.)
Withdrawn
Application number
EP00908809A
Other languages
German (de)
English (en)
Inventor
Sydney Maboka
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.)
Sappi Ltd
Original Assignee
Sappi Ltd
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 Sappi Ltd filed Critical Sappi Ltd
Publication of EP1161498A1 publication Critical patent/EP1161498A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • 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

Definitions

  • This invention relates to a timber process and product. More particularly
  • this invention relates to a process for manufacturing so-called particle
  • chipboard that a urea-formaldehyde resin (hereinafter
  • UF UF
  • binders typically contain approximately 55% to 60% formaldehyde
  • chipboard pressing takes place either in a batch-type (using daylight
  • MDI (hereinafter referred to as "MDI") may be added to the aforementioned MDI
  • binding mixture for use in manufacturing chipboard including
  • polyurethane catalyst(s) may or may not be (a) delayed-action catalyst(s).
  • TTI isocyanate
  • TDI isocyanate
  • the aforementioned mixture(s) may of course include a suitable amount
  • resin may preferably be approximately 50% (in moles) i.e. may be less
  • Suitable amines or amine compounds may be selected from the
  • DMEA 2-dimethyl ethanolamine
  • DABCO di-amino bicyclo-octane
  • DMCHA N,N-dimethyl cyclohexylamine
  • Suitable organometallic tin-based compounds may be selected from the
  • organometallic compounds may include ferric
  • Suitable alkali metal salts may be selected from the following:
  • Air Products, South Africa, and the catalysts may be identified inter alia
  • the amount of MDI When used with one or more of the above catalysts, the amount of MDI
  • BDW (hereinafter referred to as "BDW").
  • additive including an effective amount of MDI and a catalyst, each as
  • a process for manufacturing chipboard including the steps of adding to or using in a binding mixture consisting of urea-formaldehyde
  • polyether polyol which is sold by ICI (Imperial Chemical
  • PPG diol MDI Pre-Polymer is the brand name for

Landscapes

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

Abstract

Cette invention se rapporte à un mélange de liaison utilisé pour la fabrication de panneaux agglomérés. Ce mélange comprend une quantité efficace de di-isocyanate de méthyle («MDI») et un ou pl usieurs catalyseur(s) de polyuréthanne sélectionnés dans les groupes de composés suivants: (a) un ou plusieurs composés amines comprenant des dérivés amine tertiaire aliphatiques et cycliques de phénols, d'esters, d'éthers, d'alcènes et/ou d'alcools; ou (b) un ou plusieurs composés organométalliques d'étain, de bismuth, de zinc, de fer et/ou de sel(s) de métal alcalin; ou (c) des mélanges convenables de (a) et (b).
EP00908809A 1999-02-08 2000-02-08 Procede et produit se rapportant au bois d'oeuvre Withdrawn EP1161498A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA99969 1999-02-08
ZA9900969 1999-02-08
PCT/ZA2000/000019 WO2000046306A1 (fr) 1999-02-08 2000-02-08 Procede et produit se rapportant au bois d'oeuvre

Publications (1)

Publication Number Publication Date
EP1161498A1 true EP1161498A1 (fr) 2001-12-12

Family

ID=25587553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00908809A Withdrawn EP1161498A1 (fr) 1999-02-08 2000-02-08 Procede et produit se rapportant au bois d'oeuvre

Country Status (4)

Country Link
EP (1) EP1161498A1 (fr)
AU (1) AU3008600A (fr)
CA (1) CA2361618A1 (fr)
WO (1) WO2000046306A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10142296C1 (de) 2001-08-29 2003-02-13 Bayer Ag Polyurethanelastomere, Verfahren zu ihrer Herstellung und ihre Verwendung
AU2003239781A1 (en) * 2003-06-24 2005-01-04 Agro Biomass Consult Aps Method for mixing and homogenisation of binding agents and additives

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076414A (en) * 1980-04-30 1981-12-02 Ici Ltd Isocyanate reactions
GB8813396D0 (en) * 1988-06-07 1988-07-13 Earl H A Composite materials
US5140086A (en) * 1988-11-25 1992-08-18 Weyerhaeuser Company Isocyanate modified cellulose products and method for their manufacture
US5002713A (en) * 1989-12-22 1991-03-26 Board Of Control Of Michigan Technological University Method for compression molding articles from lignocellulosic materials
DE4229396C2 (de) * 1992-09-03 1997-06-05 Glunz Ag Verfahren zur Herstellung von Span- oder Faserplatten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0046306A1 *

Also Published As

Publication number Publication date
CA2361618A1 (fr) 2000-08-10
AU3008600A (en) 2000-08-25
WO2000046306A1 (fr) 2000-08-10

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