FR2431364A1 - Flame resistant chipboard panel prodn. - using mixt. of wood chips, reaction prod. of boron cpd. and sulphuric or phosphoric acid and binder - Google Patents
Flame resistant chipboard panel prodn. - using mixt. of wood chips, reaction prod. of boron cpd. and sulphuric or phosphoric acid and binderInfo
- Publication number
- FR2431364A1 FR2431364A1 FR7918439A FR7918439A FR2431364A1 FR 2431364 A1 FR2431364 A1 FR 2431364A1 FR 7918439 A FR7918439 A FR 7918439A FR 7918439 A FR7918439 A FR 7918439A FR 2431364 A1 FR2431364 A1 FR 2431364A1
- Authority
- FR
- France
- Prior art keywords
- mixt
- woodchips
- sulphuric
- phosphoric acid
- boron
- 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.)
- Granted
Links
Classifications
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Flame resistant chipboard panels are moulded by pressing a mixt. of woodchips, reaction prods. (I) of boron cpds. and sulphuric or phosphoric acid and (in)organic binder, the improvement being that the woodchips are replaced by mixt. of 50-10 wt. % fibrous material and 50-90 wt. % (I). The panels have high mechanical strength and satisfy the requirements of DIN 4102 with respect to flame retardancy. The mixt. is pref. obtd. by (1) decomposing a boron cpd. with H2SO4 in the presence of woodchips, (2) mixing dried woodchips with the dry reaction prods. of boron cpds. and H2SO4, with addition of 5-30 wt. % water or (3) mixing the moist woodchips contg. 10-250 wt.% water or (3) mixing the action prods. of boron cpds. and H2SO4.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782831455 DE2831455A1 (en) | 1978-07-18 | 1978-07-18 | Non-flammable chipboard and mouldings - contg. mixt. of fibrous material and reaction prod. of boron mineral with acid |
DE19782852646 DE2852646A1 (en) | 1978-12-06 | 1978-12-06 | Flame resistant chipboard panel prodn. - using mixt. of wood chips, reaction prod. of boron cpd. and sulphuric or phosphoric acid and binder |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2431364A1 true FR2431364A1 (en) | 1980-02-15 |
FR2431364B1 FR2431364B1 (en) | 1983-03-18 |
Family
ID=25775050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7918439A Granted FR2431364A1 (en) | 1978-07-18 | 1979-07-17 | Flame resistant chipboard panel prodn. - using mixt. of wood chips, reaction prod. of boron cpd. and sulphuric or phosphoric acid and binder |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2431364A1 (en) |
SE (1) | SE7906163L (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2351165A1 (en) * | 1976-05-15 | 1977-12-09 | Kalk Chemische Fabrik Gmbh | PROCESS FOR THE MANUFACTURING OF FLAME-RESISTANT COMPOUNDS FOR PARTICLE PANELS |
-
1979
- 1979-07-17 FR FR7918439A patent/FR2431364A1/en active Granted
- 1979-07-17 SE SE7906163A patent/SE7906163L/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2351165A1 (en) * | 1976-05-15 | 1977-12-09 | Kalk Chemische Fabrik Gmbh | PROCESS FOR THE MANUFACTURING OF FLAME-RESISTANT COMPOUNDS FOR PARTICLE PANELS |
Also Published As
Publication number | Publication date |
---|---|
SE7906163L (en) | 1980-01-19 |
FR2431364B1 (en) | 1983-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |