JPS6433299A - Fire retardant fiberboard - Google Patents

Fire retardant fiberboard

Info

Publication number
JPS6433299A
JPS6433299A JP18830487A JP18830487A JPS6433299A JP S6433299 A JPS6433299 A JP S6433299A JP 18830487 A JP18830487 A JP 18830487A JP 18830487 A JP18830487 A JP 18830487A JP S6433299 A JPS6433299 A JP S6433299A
Authority
JP
Japan
Prior art keywords
pulp
board
phosphate ester
rock wool
flame
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.)
Pending
Application number
JP18830487A
Other languages
Japanese (ja)
Inventor
Masanori Takahashi
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP18830487A priority Critical patent/JPS6433299A/en
Publication of JPS6433299A publication Critical patent/JPS6433299A/en
Pending legal-status Critical Current

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  • Paper (AREA)

Abstract

PURPOSE: To obtain a flame-retardant fiber board having a low density and a light weight, suitable for wall materials and ceiling materials and further useful as a flameproof material, a sound-absorbing board and a sound-absorbing material, by mixing a pulp phosphate ester, rock wool, etc., and then forming the board from the mixture. CONSTITUTION: This flame-retardant fiber board is obtained by mixing a pulp phosphate ester with rock wool or the pulp phosphate ester with rock wool and glass fibers and then making the board from the mixture. For example, the flame-retardant fiber board is obtained by reacting urea and phosphoric acid, dissolving the obtained polyphosphoric acid ammonium salt in water, further dissolving several percent of urea in the aqueous solution to prepare the phosphate ester-forming agent solution, immersing pulp in the prepared agent solution, leaving the pulp, pulling up the pulp, drying the pulp, heating the pulp at an esterification reaction temperature (140 deg.C), washing the reaction product with water, charging the washed product into a beater, further charging rock wool into the beater, disintegrating the mixture and then making the board from the disintegrated product.
JP18830487A 1987-07-27 1987-07-27 Fire retardant fiberboard Pending JPS6433299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18830487A JPS6433299A (en) 1987-07-27 1987-07-27 Fire retardant fiberboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18830487A JPS6433299A (en) 1987-07-27 1987-07-27 Fire retardant fiberboard

Publications (1)

Publication Number Publication Date
JPS6433299A true JPS6433299A (en) 1989-02-03

Family

ID=16221268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18830487A Pending JPS6433299A (en) 1987-07-27 1987-07-27 Fire retardant fiberboard

Country Status (1)

Country Link
JP (1) JPS6433299A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249599B1 (en) 1996-04-30 2001-06-19 Komatsu Ltd. Method and apparatus for detecting tool trouble in machine tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58180700A (en) * 1982-04-14 1983-10-22 株式会社クラレ Sheet like article, production thereof and heat insulating material
JPS62111053A (en) * 1985-11-07 1987-05-22 パイオニア株式会社 Fire retardant fiberboard for building

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58180700A (en) * 1982-04-14 1983-10-22 株式会社クラレ Sheet like article, production thereof and heat insulating material
JPS62111053A (en) * 1985-11-07 1987-05-22 パイオニア株式会社 Fire retardant fiberboard for building

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249599B1 (en) 1996-04-30 2001-06-19 Komatsu Ltd. Method and apparatus for detecting tool trouble in machine tool

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