DE2804514C2 - - Google Patents
Info
- Publication number
- DE2804514C2 DE2804514C2 DE2804514A DE2804514A DE2804514C2 DE 2804514 C2 DE2804514 C2 DE 2804514C2 DE 2804514 A DE2804514 A DE 2804514A DE 2804514 A DE2804514 A DE 2804514A DE 2804514 C2 DE2804514 C2 DE 2804514C2
- Authority
- DE
- Germany
- Prior art keywords
- chipboard
- ammonia gas
- hood
- ammonia
- hoods
- 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
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 42
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 29
- 239000011093 chipboard Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 229910021529 ammonia Inorganic materials 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
-
- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
-
- 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
- C08G85/00—General processes for preparing compounds provided for in this subclass
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Vehicle Body Suspensions (AREA)
- Forklifts And Lifting Vehicles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7701189A SE403893C (sv) | 1977-02-03 | 1977-02-03 | Sett att befria spanskivor fran formaldehyd genom behandling med ammoniak uder bildning av hexametylentetraamin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2804514A1 DE2804514A1 (de) | 1978-08-10 |
| DE2804514C2 true DE2804514C2 (enrdf_load_stackoverflow) | 1987-05-21 |
Family
ID=20330357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19782804514 Granted DE2804514A1 (de) | 1977-02-03 | 1978-02-02 | Formaldehydfreie spanplatte |
Country Status (7)
| Country | Link |
|---|---|
| DE (1) | DE2804514A1 (enrdf_load_stackoverflow) |
| DK (1) | DK153636C (enrdf_load_stackoverflow) |
| FI (1) | FI69269C (enrdf_load_stackoverflow) |
| FR (1) | FR2379374A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1598852A (enrdf_load_stackoverflow) |
| NO (1) | NO155482C (enrdf_load_stackoverflow) |
| SE (1) | SE403893C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2927055A1 (de) * | 1978-07-07 | 1980-01-17 | Ry Ab | Maschine zur behandlung von lignozellulosehaltigen plattenmaterialien mit gasfoermigen stoffen |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2829021C2 (de) * | 1978-07-01 | 1980-08-28 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen | Verfahren zur Verminderung der Formaldehydabgabe von Spanplatten |
| EP0027487A1 (fr) * | 1979-10-10 | 1981-04-29 | Jean-Baptiste Verbestel | Procédé et dispositif de traitement de matériaux lignocellulosiques liés à l'aide de résines à base de formaldéhyde |
| US4478891A (en) * | 1982-09-30 | 1984-10-23 | Ab Statens Skogsindustrier | Method of reducing the emission of formaldehyde from particle board bound with carbamide resin |
| DE4327774A1 (de) * | 1993-08-18 | 1995-02-23 | Fraunhofer Ges Forschung | Verfahren zur Herstellung von mitteldichten Holzfaserplatten (MDF) |
| FI971899A7 (fi) * | 1997-05-02 | 1998-11-03 | Sunds Defibrator Panelhandling | Menetelmä ja laitteisto levymäisen materiaalin käsittelemiseksi kaasum aisella aineella |
| DE102007054123B4 (de) | 2006-11-15 | 2012-03-15 | Edmone Roffael | Verfahren zur Herstellung von Holzfaserplatten mit verringerter Formaldehydemission, hoher Feuchtebeständigkeit und Hydrolyseresistenz der Verleimung |
| DE102008023007A1 (de) | 2007-11-11 | 2010-06-02 | Roffael, Edmone, Prof. Dr.-Ing. | Verfahren zur Herstellung von Holzfaserplatten mit verringerter Formaldehydemission, hoher Feuchtebeständigkeit und Hydrolyseresistenz der Verleimung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB462741A (en) * | 1935-04-30 | 1937-03-15 | Josef Berghoff | Improvements in moulded products and method of making the same |
| SE327622B (enrdf_load_stackoverflow) * | 1964-11-30 | 1970-08-24 | S Lundgren | |
| US3362080A (en) * | 1966-02-14 | 1968-01-09 | Beloit Corp | Through drying of paper |
| BE712436A (enrdf_load_stackoverflow) * | 1968-03-19 | 1968-07-31 |
-
1977
- 1977-02-03 SE SE7701189A patent/SE403893C/xx not_active IP Right Cessation
-
1978
- 1978-02-01 FI FI780328A patent/FI69269C/fi not_active IP Right Cessation
- 1978-02-01 GB GB4064/78A patent/GB1598852A/en not_active Expired
- 1978-02-02 NO NO780374A patent/NO155482C/no unknown
- 1978-02-02 DE DE19782804514 patent/DE2804514A1/de active Granted
- 1978-02-02 DK DK048978A patent/DK153636C/da not_active IP Right Cessation
- 1978-02-03 FR FR7803143A patent/FR2379374A1/fr active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2927055A1 (de) * | 1978-07-07 | 1980-01-17 | Ry Ab | Maschine zur behandlung von lignozellulosehaltigen plattenmaterialien mit gasfoermigen stoffen |
Also Published As
| Publication number | Publication date |
|---|---|
| FI69269B (fi) | 1985-09-30 |
| DK153636C (da) | 1988-12-19 |
| NO155482B (no) | 1986-12-29 |
| SE403893C (sv) | 1984-10-29 |
| DK153636B (da) | 1988-08-08 |
| DE2804514A1 (de) | 1978-08-10 |
| NO780374L (no) | 1978-08-04 |
| FI69269C (fi) | 1986-01-10 |
| DK48978A (da) | 1978-08-04 |
| SE403893B (sv) | 1978-09-11 |
| FR2379374B1 (enrdf_load_stackoverflow) | 1983-05-27 |
| SE7701189L (sv) | 1978-08-04 |
| GB1598852A (en) | 1981-09-23 |
| FI780328A7 (fi) | 1978-08-04 |
| NO155482C (no) | 1987-04-08 |
| FR2379374A1 (fr) | 1978-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8127 | New person/name/address of the applicant |
Owner name: AKTIEBOLAGET PAPYRUS, RYDOEBRUK, SE |
|
| 8128 | New person/name/address of the agent |
Representative=s name: WEICKMANN, H., DIPL.-ING. FINCKE, K., DIPL.-PHYS. |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: KIERKEGAARD, MICHAEL, SOLNA, SE |
|
| 8339 | Ceased/non-payment of the annual fee |