JPS5714666A - Preparation of pencil lead - Google Patents

Preparation of pencil lead

Info

Publication number
JPS5714666A
JPS5714666A JP8891680A JP8891680A JPS5714666A JP S5714666 A JPS5714666 A JP S5714666A JP 8891680 A JP8891680 A JP 8891680A JP 8891680 A JP8891680 A JP 8891680A JP S5714666 A JPS5714666 A JP S5714666A
Authority
JP
Japan
Prior art keywords
colorant
graphite
pencil lead
expanded graphite
binder
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
JP8891680A
Other languages
English (en)
Japanese (ja)
Other versions
JPS642154B2 (en:Method
Inventor
Hiroaki Okabayashi
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.)
Pentel Co Ltd
Original Assignee
Pentel 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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP8891680A priority Critical patent/JPS5714666A/ja
Publication of JPS5714666A publication Critical patent/JPS5714666A/ja
Publication of JPS642154B2 publication Critical patent/JPS642154B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)
JP8891680A 1980-06-30 1980-06-30 Preparation of pencil lead Granted JPS5714666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8891680A JPS5714666A (en) 1980-06-30 1980-06-30 Preparation of pencil lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8891680A JPS5714666A (en) 1980-06-30 1980-06-30 Preparation of pencil lead

Publications (2)

Publication Number Publication Date
JPS5714666A true JPS5714666A (en) 1982-01-25
JPS642154B2 JPS642154B2 (en:Method) 1989-01-13

Family

ID=13956241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8891680A Granted JPS5714666A (en) 1980-06-30 1980-06-30 Preparation of pencil lead

Country Status (1)

Country Link
JP (1) JPS5714666A (en:Method)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435766A3 (en) * 1989-12-25 1992-01-02 Technion Research & Development Foundation Ltd. Structure of expanded graphite and its use in the removal of oil from water
JP2006265299A (ja) * 2005-03-22 2006-10-05 Pilot Precision Co Ltd 焼成鉛筆芯
FR3065006A1 (fr) * 2017-04-10 2018-10-12 Societe Bic Mine de crayon a papier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435766A3 (en) * 1989-12-25 1992-01-02 Technion Research & Development Foundation Ltd. Structure of expanded graphite and its use in the removal of oil from water
JP2006265299A (ja) * 2005-03-22 2006-10-05 Pilot Precision Co Ltd 焼成鉛筆芯
FR3065006A1 (fr) * 2017-04-10 2018-10-12 Societe Bic Mine de crayon a papier
WO2018189467A1 (fr) 2017-04-10 2018-10-18 Societe Bic Mine de crayon a papier
JP2020516702A (ja) * 2017-04-10 2020-06-11 ソシエテ ビックＳｏｃｉｅｔｅ Ｂｉｃ 鉛筆芯
US11072722B2 (en) 2017-04-10 2021-07-27 Societe Bic Pencil lead

Also Published As

Publication number Publication date
JPS642154B2 (en:Method) 1989-01-13

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