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GB201705218D0 - Pencil lead formulation - Google Patents

Pencil lead formulation

Info

Publication number
GB201705218D0
GB201705218D0 GBGB1705218.4A GB201705218A GB201705218D0 GB 201705218 D0 GB201705218 D0 GB 201705218D0 GB 201705218 A GB201705218 A GB 201705218A GB 201705218 D0 GB201705218 D0 GB 201705218D0
Authority
GB
United Kingdom
Prior art keywords
pencil lead
lead formulation
formulation
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.)
Ceased
Application number
GBGB1705218.4A
Other languages
English (en)
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.)
Ecograf Pty Ltd
Original Assignee
Ecograf Pty 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 Ecograf Pty Ltd filed Critical Ecograf Pty Ltd
Priority to GBGB1705218.4A priority Critical patent/GB201705218D0/en
Publication of GB201705218D0 publication Critical patent/GB201705218D0/en
Priority to PCT/ZA2018/050017 priority patent/WO2018184037A1/fr
Ceased 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)
GBGB1705218.4A 2017-03-31 2017-03-31 Pencil lead formulation Ceased GB201705218D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB1705218.4A GB201705218D0 (en) 2017-03-31 2017-03-31 Pencil lead formulation
PCT/ZA2018/050017 WO2018184037A1 (fr) 2017-03-31 2018-04-03 Formulation de mine de crayon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1705218.4A GB201705218D0 (en) 2017-03-31 2017-03-31 Pencil lead formulation

Publications (1)

Publication Number Publication Date
GB201705218D0 true GB201705218D0 (en) 2017-05-17

Family

ID=58682616

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB1705218.4A Ceased GB201705218D0 (en) 2017-03-31 2017-03-31 Pencil lead formulation

Country Status (2)

Country Link
GB (1) GB201705218D0 (fr)
WO (1) WO2018184037A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113815335B (zh) * 2021-11-01 2023-04-25 滨州派斯乐笔业有限公司 一种不反光的石墨笔芯
EP4596644A1 (fr) * 2024-02-05 2025-08-06 Faber- Castell AG Mine de couleur effaçable et non cuite pour instrument d'écriture, dispositif de dessin et de peinture ou craie effaçable et non cuite ainsi que instrument d'écriture, dispositif de dessin et de peinture avec une mine de couleur effaçable et non cuite et procédé d'une mine ou d'une craie effaçable et non cuite

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298507A (en) * 1980-03-11 1981-11-03 Leon Roque O L Flexible marking composition for pencils
JP2002053789A (ja) * 2000-08-07 2002-02-19 Pentel Corp 鉛筆芯の製造方法
EP2390294A1 (fr) * 2010-05-26 2011-11-30 Université Catholique De Louvain Crayons, procédés pour la préparation et ses utilization

Also Published As

Publication number Publication date
WO2018184037A1 (fr) 2018-10-04

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)