CA972908A - Black lead and production thereof - Google Patents

Black lead and production thereof

Info

Publication number
CA972908A
CA972908A CA149,219A CA149219A CA972908A CA 972908 A CA972908 A CA 972908A CA 149219 A CA149219 A CA 149219A CA 972908 A CA972908 A CA 972908A
Authority
CA
Canada
Prior art keywords
production
black lead
black
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.)
Expired
Application number
CA149,219A
Other languages
English (en)
Other versions
CA149219S (en
Inventor
Etsuo Shinkawa
Kenji Oyaide
Masanori Shinomoto
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.)
Pilot Kiko KK
Original Assignee
Pilot Kiko 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
Priority claimed from JP6322071A external-priority patent/JPS513245B2/ja
Priority claimed from JP6500071A external-priority patent/JPS5126849B2/ja
Priority claimed from JP5552372A external-priority patent/JPS4945332B2/ja
Application filed by Pilot Kiko KK filed Critical Pilot Kiko KK
Application granted granted Critical
Publication of CA972908A publication Critical patent/CA972908A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D13/00—Pencil-leads; Crayon compositions; Chalk compositions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
CA149,219A 1971-08-19 1972-08-11 Black lead and production thereof Expired CA972908A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6322071A JPS513245B2 (fr) 1971-08-19 1971-08-19
JP6500071A JPS5126849B2 (fr) 1971-08-25 1971-08-25
JP5552372A JPS4945332B2 (fr) 1972-06-03 1972-06-03

Publications (1)

Publication Number Publication Date
CA972908A true CA972908A (en) 1975-08-19

Family

ID=27295606

Family Applications (1)

Application Number Title Priority Date Filing Date
CA149,219A Expired CA972908A (en) 1971-08-19 1972-08-11 Black lead and production thereof

Country Status (6)

Country Link
US (1) US3928520A (fr)
CA (1) CA972908A (fr)
CH (1) CH565231A5 (fr)
FR (1) FR2149565B1 (fr)
GB (1) GB1397784A (fr)
IT (1) IT962133B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422132B2 (fr) * 1974-06-17 1979-08-04
DE3032552A1 (de) * 1980-08-29 1982-04-29 Varta Batterie Ag, 3000 Hannover Verfahren zur herstellung einer elektrochemischen hochtemperaturzelle
US4371632A (en) * 1981-04-24 1983-02-01 Empire Enterprises, Inc. Compositions, processes, and writing elements employing resins of the thermosetting type
DE3835241C2 (de) * 1988-10-15 1994-08-11 Staedtler Fa J S Verfahren zur Herstellung von Bleistiftminen
DE4016710A1 (de) * 1990-05-24 1991-11-28 Bayer Ag Verfahren zur herstellung von formteilen
JP3205184B2 (ja) * 1994-08-12 2001-09-04 三菱鉛筆株式会社 焼成鉛筆芯及びその製造方法
EP2832784A4 (fr) * 2012-03-30 2015-12-30 Sekisui Chemical Co Ltd Corps poreux
EP3205450A1 (fr) * 2016-02-09 2017-08-16 Hermes Schleifkörper GmbH Procédé de fabrication d'un corps de formage en céramique
EP3205449A1 (fr) * 2016-02-09 2017-08-16 Hermes Schleifkörper GmbH Procédé de fabrication d'un corps de formage en céramique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE460908A (fr) * 1943-05-19
US3262904A (en) * 1961-08-30 1966-07-26 Dow Chemical Co Pencil leads
GB1090231A (en) * 1963-07-22 1967-11-08 Atomic Energy Authority Uk Improvements in or relating to the manufacture of graphite
US3254143A (en) * 1963-07-29 1966-05-31 Pennsalt Chemicals Corp Method for molding carbonized bodies
DE1519102A1 (de) * 1964-12-08 1969-12-11 Dainihonbungu Kabushiki Kaisha Verfahren zur Herstellung von Bleistiftminen
DE2012284A1 (de) * 1970-03-14 1971-10-07 Bayer Verfahren zur Herstellung von Faser-Produkten mit dünnen Kohlenstoffasern

Also Published As

Publication number Publication date
DE2240601B2 (de) 1976-04-15
GB1397784A (en) 1975-06-18
FR2149565A1 (fr) 1973-03-30
DE2240601A1 (de) 1973-03-01
CH565231A5 (fr) 1975-08-15
US3928520A (en) 1975-12-23
FR2149565B1 (fr) 1977-07-29
IT962133B (it) 1973-12-20

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