JPS57141469A - Pencil lead - Google Patents

Pencil lead

Info

Publication number
JPS57141469A
JPS57141469A JP2642381A JP2642381A JPS57141469A JP S57141469 A JPS57141469 A JP S57141469A JP 2642381 A JP2642381 A JP 2642381A JP 2642381 A JP2642381 A JP 2642381A JP S57141469 A JPS57141469 A JP S57141469A
Authority
JP
Japan
Prior art keywords
lead
dinitronaphthalene
thermoplastic resin
binder
pencil lead
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
JP2642381A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0128071B2 (mo
Inventor
Masatoshi Abe
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.)
TONBO ENPITSU KK
Original Assignee
TONBO ENPITSU 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 TONBO ENPITSU KK filed Critical TONBO ENPITSU KK
Priority to JP2642381A priority Critical patent/JPS57141469A/ja
Publication of JPS57141469A publication Critical patent/JPS57141469A/ja
Publication of JPH0128071B2 publication Critical patent/JPH0128071B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)
JP2642381A 1981-02-25 1981-02-25 Pencil lead Granted JPS57141469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2642381A JPS57141469A (en) 1981-02-25 1981-02-25 Pencil lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2642381A JPS57141469A (en) 1981-02-25 1981-02-25 Pencil lead

Publications (2)

Publication Number Publication Date
JPS57141469A true JPS57141469A (en) 1982-09-01
JPH0128071B2 JPH0128071B2 (mo) 1989-05-31

Family

ID=12193108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2642381A Granted JPS57141469A (en) 1981-02-25 1981-02-25 Pencil lead

Country Status (1)

Country Link
JP (1) JPS57141469A (mo)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024051855A (ja) * 2022-09-30 2024-04-11 ぺんてる株式会社 焼成鉛筆芯

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024051855A (ja) * 2022-09-30 2024-04-11 ぺんてる株式会社 焼成鉛筆芯

Also Published As

Publication number Publication date
JPH0128071B2 (mo) 1989-05-31

Similar Documents

Publication Publication Date Title
JPS5684312A (en) Manufacture of molding consisting of mixture containing oxide
JPS53102394A (en) Two-pack type resin composition
JPS5622617A (en) Manufacture of activated carbon molding
JPS56856A (en) Heat-resistant rubber composition
JPS57145028A (en) Preparation of alpha-alumina having high specific surface area
JPS55115436A (en) Composition for injection molding or extrusion molding
JPS5695342A (en) Production of honeycomb molding for catalyst
JPS53123457A (en) Molding resin composition
JPS52155197A (en) Production of block rock phosphate
GB1498466A (en) Process for the production of crack-free precision mouldings
JPS51119056A (en) Production method of tetrafluoroethylene resin molded materials
JPS57155242A (en) Colorant for polyolefin resin
FR2336264A1 (fr) Pointe scriptrice pour stylographes a encre liquide
JPS52101737A (en) Heating body
JPS55127473A (en) Color pencil lead
JPS5534216A (en) Production of pencil lead
JPS55789A (en) Production of polyolefin molding with improved surface
JPS52125254A (en) Manufacture for bent waveguide
JPS57145016A (en) Preparation of carbonaceous microbead
JPS5238197A (en) High temperature ceramic thermistor material
JPS57204276A (en) Utilization of fly ash
JPS5575439A (en) Reinforcement and reclamation of waste soft polyvinyl chloride article
WENDT TRIALS FOR SHAPING BY STIFF EXTRUSION, USING CLAY RAW MATERIALS OF THE GDR
JPS5434146A (en) Sheathed heater and its manufacturing process
JPS5514126A (en) Veining preventing silica sand for resin bound casting mold