JPS53147716A - Manufacture of gypsummfiber board using bulky calcium sulfate dihydrate needleelike crystal - Google Patents

Manufacture of gypsummfiber board using bulky calcium sulfate dihydrate needleelike crystal

Info

Publication number
JPS53147716A
JPS53147716A JP6375477A JP6375477A JPS53147716A JP S53147716 A JPS53147716 A JP S53147716A JP 6375477 A JP6375477 A JP 6375477A JP 6375477 A JP6375477 A JP 6375477A JP S53147716 A JPS53147716 A JP S53147716A
Authority
JP
Japan
Prior art keywords
needleelike
gypsummfiber
crystal
manufacture
board
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
JP6375477A
Other languages
English (en)
Japanese (ja)
Other versions
JPS567990B2 (lt
Inventor
Nobumasa Ishida
Yasuo Yamada
Hideki Jinno
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.)
Nippon Hardboard Co Ltd
Original Assignee
Nippon Hardboard Co Ltd
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 Nippon Hardboard Co Ltd filed Critical Nippon Hardboard Co Ltd
Priority to JP6375477A priority Critical patent/JPS53147716A/ja
Publication of JPS53147716A publication Critical patent/JPS53147716A/ja
Publication of JPS567990B2 publication Critical patent/JPS567990B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
JP6375477A 1977-05-30 1977-05-30 Manufacture of gypsummfiber board using bulky calcium sulfate dihydrate needleelike crystal Granted JPS53147716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6375477A JPS53147716A (en) 1977-05-30 1977-05-30 Manufacture of gypsummfiber board using bulky calcium sulfate dihydrate needleelike crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6375477A JPS53147716A (en) 1977-05-30 1977-05-30 Manufacture of gypsummfiber board using bulky calcium sulfate dihydrate needleelike crystal

Publications (2)

Publication Number Publication Date
JPS53147716A true JPS53147716A (en) 1978-12-22
JPS567990B2 JPS567990B2 (lt) 1981-02-20

Family

ID=13238491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6375477A Granted JPS53147716A (en) 1977-05-30 1977-05-30 Manufacture of gypsummfiber board using bulky calcium sulfate dihydrate needleelike crystal

Country Status (1)

Country Link
JP (1) JPS53147716A (lt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930597A (ja) * 1982-08-13 1984-02-18 ヤマハ株式会社 自動演奏ピアノのペダル駆動装置
JPH0521113Y2 (lt) * 1986-02-28 1993-05-31

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526726A (en) * 1975-07-07 1977-01-19 Idemitsu Kosan Co Incombustible sheets

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526726A (en) * 1975-07-07 1977-01-19 Idemitsu Kosan Co Incombustible sheets

Also Published As

Publication number Publication date
JPS567990B2 (lt) 1981-02-20

Similar Documents

Publication Publication Date Title
GB1538102A (en) Calcium sulphate hemihydrate plaster
JPS53133220A (en) Gypsum board and method of making same
NZ186617A (en) Continuous treatment of calcined gypsum to give calcium sulphate hemihydrate gypsum board manufacture
GB2053874B (en) Production of calcium sulphate
GB1538103A (en) Set-promoting composition for calcium sulphate hemihydrate plaster
JPS5447895A (en) Method of manufacturing calcium sulfate of raw material for manufacturing plaster and plaster board
JPS53147717A (en) Manufacture of gypsummfiber board using bulky calcium sulfate semihydrate needleelike crystal
JPS53147716A (en) Manufacture of gypsummfiber board using bulky calcium sulfate dihydrate needleelike crystal
JPS52104532A (en) Board of gypsum
GB1545788A (en) Manufacture of calcium sulphate
JPS5632325A (en) Manufacture of calcium sulfate hemihydrate
JPS53119922A (en) Manufacture of quickksetting cement
JPS53130719A (en) Method of making gypsum board
JPS544897A (en) Hydration of hemihydrate gypsum
JPS55140781A (en) Manufacture of cement board
JPS5482396A (en) Method of manufacturing bulky calcium sulfate dihydrated salt needleelike crystal and apparatus therefor
JPS53123425A (en) Method of making gypsum board
JPS5542281A (en) Manufacture of gypsum board
JPS5392833A (en) Manufacture of impacttresistant building board
JPS5487726A (en) Production of gypsum board
JPS541321A (en) Method of making gypsum fiber board comprizing essentially needle crystal of bulky anhydrous calcium sulfate
JPS53120734A (en) Manufacture of noncombustible plate of iiitype anhydrous gypsum needleelike crystal
JPS53120733A (en) Manufacture of noncombustible plate of iiitype anhydrous gypsum needleelike crystal
JPS53118426A (en) Method of manufacturing board of gypsum
JPS52144028A (en) Production of plaster board