DE2804514C2 - - Google Patents

Info

Publication number: DE2804514C2
Authority: DE; Germany
Prior art keywords: chipboard; ammonia gas; hood; ammonia; hoods
Prior art date: 1977-02-03
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

DE2804514A

Other languages

German (de)

English (en)

Other versions

DE2804514A1 (de

Inventor

Olof Oskarstroem Se Smedberg

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.)

KIERKEGAARD, MICHAEL, SOLNA, SE

Original Assignee

PAPYRUS RYDOEBRUK SE AB

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.)

1977-02-03

Filing date

1978-02-02

Publication date

1987-05-21

1978-02-02 Application filed by PAPYRUS RYDOEBRUK SE AB filed Critical PAPYRUS RYDOEBRUK SE AB

1978-08-10 Publication of DE2804514A1 publication Critical patent/DE2804514A1/de

1987-05-21 Application granted granted Critical

1987-05-21 Publication of DE2804514C2 publication Critical patent/DE2804514C2/de

Status Granted legal-status Critical Current

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
- 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)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (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)

DE19782804514 1977-02-03 1978-02-02 Formaldehydfreie spanplatte Granted DE2804514A1 (de)

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 (sv)	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 (sv)
DK (1)	DK153636C (sv)
FI (1)	FI69269C (sv)
FR (1)	FR2379374A1 (sv)
GB (1)	GB1598852A (sv)
NO (1)	NO155482C (sv)
SE (1)	SE403893C (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)
FI971899A (sv)	1997-05-02	1998-11-03	Sunds Defibrator Panelhandling	Förfarande och apparatur för behandling av skivformigt material med ga sformigt ämne
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)

* Cited by examiner, † Cited by third party
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 (sv) *	1964-11-30	1970-08-24	S Lundgren
US3362080A (en) *	1966-02-14	1968-01-09	Beloit Corp	Through drying of paper
BE712436A (sv) *	1968-03-19	1968-07-31

1977
- 1977-02-03 SE SE7701189A patent/SE403893C/sv 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 DE DE19782804514 patent/DE2804514A1/de active Granted
- 1978-02-02 DK DK048978A patent/DK153636C/da not_active IP Right Cessation
- 1978-02-02 NO NO780374A patent/NO155482C/no unknown
- 1978-02-03 FR FR7803143A patent/FR2379374A1/fr active Granted

Cited By (1)

* Cited by examiner, † Cited by third party
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
DK48978A (da)	1978-08-04
DK153636C (da)	1988-12-19
SE7701189L (sv)	1978-08-04
SE403893C (sv)	1984-10-29
FR2379374A1 (fr)	1978-09-01
NO780374L (no)	1978-08-04
NO155482C (no)	1987-04-08
FI780328A (fi)	1978-08-04
SE403893B (sv)	1978-09-11
DE2804514A1 (de)	1978-08-10
DK153636B (da)	1988-08-08
FI69269C (fi)	1986-01-10
NO155482B (no)	1986-12-29
FR2379374B1 (sv)	1983-05-27
FI69269B (fi)	1985-09-30
GB1598852A (en)	1981-09-23

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Legal Events

Date	Code	Title	Description
1985-03-28	8110	Request for examination paragraph 44
1986-02-20	8127	New person/name/address of the applicant	Owner name: AKTIEBOLAGET PAPYRUS, RYDOEBRUK, SE
1986-02-20	8128	New person/name/address of the agent	Representative=s name: WEICKMANN, H., DIPL.-ING. FINCKE, K., DIPL.-PHYS.
1987-05-21	D2	Grant after examination
1987-11-19	8364	No opposition during term of opposition
1991-05-23	8327	Change in the person/name/address of the patent owner	Owner name: KIERKEGAARD, MICHAEL, SOLNA, SE
1993-02-11	8339	Ceased/non-payment of the annual fee