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 binder

Info

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
Application number
FR7918439A
Other languages
French (fr)
Other versions
FR2431364B1 (en
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.)
Chemische Fabrik Kalk GmbH
Original Assignee
Chemische Fabrik Kalk GmbH
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
Priority claimed from DE19782831455 external-priority patent/DE2831455A1/en
Priority claimed from DE19782852646 external-priority patent/DE2852646A1/en
Application filed by Chemische Fabrik Kalk GmbH filed Critical Chemische Fabrik Kalk GmbH
Publication of FR2431364A1 publication Critical patent/FR2431364A1/en
Application granted granted Critical
Publication of FR2431364B1 publication Critical patent/FR2431364B1/fr
Granted legal-status Critical Current

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.
FR7918439A 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 Granted FR2431364A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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

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ST Notification of lapse