FR2002097A1 - Prodn of chipboard with alkaline phenol-formaldehyde - Google Patents
Prodn of chipboard with alkaline phenol-formaldehydeInfo
- Publication number
- FR2002097A1 FR2002097A1 FR6901635A FR6901635A FR2002097A1 FR 2002097 A1 FR2002097 A1 FR 2002097A1 FR 6901635 A FR6901635 A FR 6901635A FR 6901635 A FR6901635 A FR 6901635A FR 2002097 A1 FR2002097 A1 FR 2002097A1
- Authority
- FR
- France
- Prior art keywords
- chipboard
- prodn
- alkaline phenol
- formaldehyde
- aqueous alkaline
- 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- Withdrawn
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
-
- 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
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)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Process for the prodn. of shaped articles, especially chipboard, from wood fines and aqueous alkaline phenol-formaldehyde condensates as binders, by curing the preformed article under the action of heat and pressure, is characterised by the use of aqueous alkaline phenol-formaldehyde condensates, to which further alkali is added shortly before use. The process gives wood-based shaped articles, especially chipboard, with generally improved properties. In particular, the strength of the articles is increased, and the swelling behavior with water or steam is improved.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681653171 DE1653171A1 (en) | 1968-02-17 | 1968-02-17 | Process for the production of molded parts |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2002097A1 true FR2002097A1 (en) | 1969-10-03 |
Family
ID=5685098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6901635A Withdrawn FR2002097A1 (en) | 1968-02-17 | 1969-01-28 | Prodn of chipboard with alkaline phenol-formaldehyde |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE727888A (en) |
FR (1) | FR2002097A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1969
- 1969-01-28 FR FR6901635A patent/FR2002097A1/en not_active Withdrawn
- 1969-02-04 BE BE727888D patent/BE727888A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
---|---|
BE727888A (en) | 1969-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |