NO951042L - Process for the preparation of binders for wood materials - Google Patents

Process for the preparation of binders for wood materials

Info

Publication number
NO951042L
NO951042L NO951042A NO951042A NO951042L NO 951042 L NO951042 L NO 951042L NO 951042 A NO951042 A NO 951042A NO 951042 A NO951042 A NO 951042A NO 951042 L NO951042 L NO 951042L
Authority
NO
Norway
Prior art keywords
phenol
preparation
binders
wood materials
mol
Prior art date
Application number
NO951042A
Other languages
Norwegian (no)
Other versions
NO951042D0 (en
Inventor
Hermann Schatz
Heinz Lehnert
Gunther Matthias
Original Assignee
Basf Ag
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 Basf Ag filed Critical Basf Ag
Publication of NO951042D0 publication Critical patent/NO951042D0/en
Publication of NO951042L publication Critical patent/NO951042L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/21—Urea; Derivatives thereof, e.g. biuret
    • 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)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Fremstilling av høyreaktive, vandige bindemidler for trematerialer av oppstykket heltre ved blanding av A) 67-95 vekt% av en vandig løsning av en kondensasjonsharpiks, sammensatt av al) 25-35 mol% fenol, a2) 65-75 mol% formaldehyd, og a3) 0-2 mol% fenolderivater med et faststoffinnhold på 40-55 vekt%, en viskositet på 0,5-5 På»s (beregnet på et faststoffinnhold på 48 vekt% og målt ved 20'C) og inneholdende 0,8-1,5 molek- vivalenter, beregnet på fenolen og fenol- derivatene, av et alkalihydroksyd, og B) 5-33 vekt% urea i form av en vandig løs- ning eller som et faststoff, idet man foretar blandingen av komponentene A) og B) ikke mer enn 96 timer før man påfører bindemidlet på oppstykket heltre, og limer det til trematerialer.Preparation of Highly Reactive Aqueous Binders for Pieces of Solid Wood by Mixing A) 67-95% by weight of an aqueous solution of a condensation resin composed of al) 25-35 mol% phenol, a2) 65-75 mol% formaldehyde, and a3) 0-2 mole% of phenolic derivatives having a solids content of 40-55 wt%, a viscosity of 0.5-5 On »s (calculated on a solids content of 48 wt% and measured at 20 ° C) and containing 0.8 -1.5 molar equivalents, calculated on the phenol and phenol derivatives, of an alkali hydroxide, and B) 5-33% by weight of urea in the form of an aqueous solution or as a solid, making the mixture of components A) and B) not more than 96 hours before applying the binder to the solid wood piece and gluing it to wood materials.

NO951042A 1994-03-19 1995-03-17 Process for the preparation of binders for wood materials NO951042L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4409512A DE4409512A1 (en) 1994-03-19 1994-03-19 Process for the production of highly reactive aqueous binders for wood materials from split, grown wood

Publications (2)

Publication Number Publication Date
NO951042D0 NO951042D0 (en) 1995-03-17
NO951042L true NO951042L (en) 1995-09-20

Family

ID=6513309

Family Applications (1)

Application Number Title Priority Date Filing Date
NO951042A NO951042L (en) 1994-03-19 1995-03-17 Process for the preparation of binders for wood materials

Country Status (4)

Country Link
EP (1) EP0672715A3 (en)
DE (1) DE4409512A1 (en)
FI (1) FI951264A (en)
NO (1) NO951042L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0107238B8 (en) * 2000-10-06 2022-10-25 Borden Chem Inc MANUFACTURING PROCESSES OF CONSTRUCTION PANELS.
DE10315997A1 (en) * 2003-04-07 2004-12-02 Fritz Egger Ges. m.b.H. & Co. Chipboard and method for producing a chipboard
DE102009017693A1 (en) 2009-04-15 2010-05-20 Innovent E.V. Technologieentwicklung Method for finishing or impregnating wood utilized for forming wooden musical instrument, involves making wood to be processed to contact urea solution, and treating wood at low pressure and/or temperature in aqueous urea solution

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619341A (en) * 1969-07-18 1971-11-09 Alton Box Co Corrugated fiberboard
DE3346153C3 (en) * 1983-12-21 1994-04-07 Rwe Dea Ag Process for the production of modified phenolic resin wood binders and their use for the production of chipboard
US4757108A (en) * 1986-06-18 1988-07-12 Borden, Inc. Water soluble phenolic resole-urea composition
US4758478A (en) * 1986-09-30 1988-07-19 Daisy Nick K Fast curing phenolic resins and bonding methods employing same
DE3708739A1 (en) * 1987-03-18 1988-09-29 Basf Ag ALKALINE CONDENSED UREA PHENOL FORMALDEHYDE RESIN SOLUTION, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE IN THE PRODUCTION OF CHIPBOARDS
DE4300035C1 (en) * 1993-01-02 1994-02-03 Rwe Dea Ag Highly reactive urea]-modified phenolic resin prodn. for chipboard mfr. - as middle layer binder by alkaline condensn. of phenol@ and formaldehyde], adding urea and adding more alkali before use, saving energy

Also Published As

Publication number Publication date
EP0672715A2 (en) 1995-09-20
NO951042D0 (en) 1995-03-17
FI951264A (en) 1995-09-20
DE4409512A1 (en) 1995-09-21
EP0672715A3 (en) 1997-03-05
FI951264A0 (en) 1995-03-17

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