FR2637906B1 - Procede pour la fabrication de mines de crayon - Google Patents

Procede pour la fabrication de mines de crayon

Info

Publication number
FR2637906B1
FR2637906B1 FR8913654A FR8913654A FR2637906B1 FR 2637906 B1 FR2637906 B1 FR 2637906B1 FR 8913654 A FR8913654 A FR 8913654A FR 8913654 A FR8913654 A FR 8913654A FR 2637906 B1 FR2637906 B1 FR 2637906B1
Authority
FR
France
Prior art keywords
manufacture
pencil mines
mines
pencil
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 - Fee Related
Application number
FR8913654A
Other languages
English (en)
Other versions
FR2637906A1 (fr
Inventor
Werner Handl
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.)
JS Staedtler GmbH and Co KG
Original Assignee
JS Staedtler GmbH and Co KG
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 JS Staedtler GmbH and Co KG filed Critical JS Staedtler GmbH and Co KG
Publication of FR2637906A1 publication Critical patent/FR2637906A1/fr
Application granted granted Critical
Publication of FR2637906B1 publication Critical patent/FR2637906B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Compositions Of Oxide Ceramics (AREA)
FR8913654A 1988-10-15 1989-10-13 Procede pour la fabrication de mines de crayon Expired - Fee Related FR2637906B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3835241A DE3835241C2 (de) 1988-10-15 1988-10-15 Verfahren zur Herstellung von Bleistiftminen

Publications (2)

Publication Number Publication Date
FR2637906A1 FR2637906A1 (fr) 1990-04-20
FR2637906B1 true FR2637906B1 (fr) 1993-07-16

Family

ID=6365249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8913654A Expired - Fee Related FR2637906B1 (fr) 1988-10-15 1989-10-13 Procede pour la fabrication de mines de crayon

Country Status (4)

Country Link
US (2) US5075054A (fr)
JP (1) JPH07762B2 (fr)
DE (1) DE3835241C2 (fr)
FR (1) FR2637906B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131674A (en) * 1989-09-29 1992-07-21 Asahi Glass Company Ltd. Lubricant for skis
US5296526A (en) * 1990-08-15 1994-03-22 Cargill, Incorporated A process for preparing a composition containing a polymer of unsaturated hydrocarbon, a C1-4 alkyl or hydroxyalkylether of starch and a vinyl or acrylic polymer as a compatibilizing agent
JP3234047B2 (ja) * 1992-09-25 2001-12-04 三菱鉛筆株式会社 焼成鉛筆芯及びその製造方法
DE4430478A1 (de) * 1994-08-27 1996-02-29 Basf Ag Graphit-Preßlinge
US7217378B2 (en) * 2003-09-10 2007-05-15 Council Of Scientific & Industrial Research Simple and efficient process for the preparation of pencil lead from spent pot-liners
JP2013245267A (ja) * 2012-05-24 2013-12-09 Mitsubishi Pencil Co Ltd 鉛筆芯
DE202014007274U1 (de) 2014-09-06 2015-12-09 J. S. Staedtler Gmbh & Co. Kg Mine für Schreib-, Zeichen- und/oder Malgerät
DE102014013200A1 (de) 2014-09-06 2016-03-10 Staedtler Mars Gmbh & Co. Kg Mine für ein Schreib-, Zeichen- und/oder Malgerät.
FR3065006B1 (fr) * 2017-04-10 2019-06-21 Societe Bic Mine de crayon a papier
WO2023248969A1 (fr) * 2022-06-24 2023-12-28 三菱鉛筆株式会社 Mine de crayon et procédé de fabrication associé

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US203549A (en) * 1878-05-14 Improvement in artificial slate-pencils
US1528908A (en) * 1923-03-19 1925-03-10 Frank H Riddle Process of forming ceramic products
GB216420A (en) * 1923-09-18 1924-05-29 American Lead Pencil Co Method of forming marking elements such as pencil leads, crayons and like articles
US2013584A (en) * 1930-11-24 1935-09-03 Schwanhausser Erich Process of making writing pencil leads
DE1243305B (de) * 1960-12-21 1967-06-29 Georgia Kaolin Co Formmasse zur Herstellung von Bleistiftminen
US3725100A (en) * 1971-02-17 1973-04-03 Engelhard Min & Chem Method for processing kaolin claycoating pigment and improved productthereof
CA972908A (en) * 1971-08-19 1975-08-19 Etsuo Shinkawa Black lead and production thereof
JPS5488424A (en) * 1977-12-23 1979-07-13 Pentel Kk Preparation of lead of pencil
JPS5518271A (en) * 1978-07-27 1980-02-08 Nippon Densetsu Kk Electric dust collector
US4209332A (en) * 1978-08-24 1980-06-24 Sakura Color Products Corp. Method for manufacturing pencil leads
JPH0761757B2 (ja) * 1986-09-27 1995-07-05 ぺんてる株式会社 鉛筆芯の製造方法

Also Published As

Publication number Publication date
JPH07762B2 (ja) 1995-01-11
FR2637906A1 (fr) 1990-04-20
US5118345A (en) 1992-06-02
DE3835241C1 (en) 1989-05-11
JPH02155965A (ja) 1990-06-15
DE3835241C2 (de) 1994-08-11
US5075054A (en) 1991-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse