JPS56163171A - Uncalcined pencil lead - Google Patents

Uncalcined pencil lead

Info

Publication number
JPS56163171A
JPS56163171A JP6738780A JP6738780A JPS56163171A JP S56163171 A JPS56163171 A JP S56163171A JP 6738780 A JP6738780 A JP 6738780A JP 6738780 A JP6738780 A JP 6738780A JP S56163171 A JPS56163171 A JP S56163171A
Authority
JP
Japan
Prior art keywords
uncalcined
pencil lead
base material
plasticizer
solvent
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
JP6738780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS623189B2 (enrdf_load_stackoverflow
Inventor
Mitsuru Yoshida
Toshiyuki Koga
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.)
Otsuka Chemical Co Ltd
Mitsubishi Pencil Co Ltd
Otsuka Kagaku Yakuhin KK
Original Assignee
Otsuka Chemical Co Ltd
Mitsubishi Pencil Co Ltd
Otsuka Kagaku Yakuhin KK
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 Otsuka Chemical Co Ltd, Mitsubishi Pencil Co Ltd, Otsuka Kagaku Yakuhin KK filed Critical Otsuka Chemical Co Ltd
Priority to JP6738780A priority Critical patent/JPS56163171A/ja
Publication of JPS56163171A publication Critical patent/JPS56163171A/ja
Publication of JPS623189B2 publication Critical patent/JPS623189B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)
JP6738780A 1980-05-21 1980-05-21 Uncalcined pencil lead Granted JPS56163171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6738780A JPS56163171A (en) 1980-05-21 1980-05-21 Uncalcined pencil lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6738780A JPS56163171A (en) 1980-05-21 1980-05-21 Uncalcined pencil lead

Publications (2)

Publication Number Publication Date
JPS56163171A true JPS56163171A (en) 1981-12-15
JPS623189B2 JPS623189B2 (enrdf_load_stackoverflow) 1987-01-23

Family

ID=13343526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6738780A Granted JPS56163171A (en) 1980-05-21 1980-05-21 Uncalcined pencil lead

Country Status (1)

Country Link
JP (1) JPS56163171A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968987U (ja) * 1982-10-30 1984-05-10 ぺんてる株式会社 色鉛筆芯
JPS6227480A (ja) * 1985-07-30 1987-02-05 Pentel Kk 色芯の製造方法
JPS63189481A (ja) * 1987-01-31 1988-08-05 Pentel Kk 色鉛筆芯の製造方法
EP0224579B1 (de) * 1985-05-24 1990-01-24 MERCK PATENT GmbH Smektische flüssigkristalline phasen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968987U (ja) * 1982-10-30 1984-05-10 ぺんてる株式会社 色鉛筆芯
EP0224579B1 (de) * 1985-05-24 1990-01-24 MERCK PATENT GmbH Smektische flüssigkristalline phasen
JPS6227480A (ja) * 1985-07-30 1987-02-05 Pentel Kk 色芯の製造方法
JPS63189481A (ja) * 1987-01-31 1988-08-05 Pentel Kk 色鉛筆芯の製造方法

Also Published As

Publication number Publication date
JPS623189B2 (enrdf_load_stackoverflow) 1987-01-23

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