JP7857930B2 - 多孔質非焼成鉛筆芯体及び多孔質非焼成鉛筆芯体の製造方法 - Google Patents

多孔質非焼成鉛筆芯体及び多孔質非焼成鉛筆芯体の製造方法

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Publication number
JP7857930B2
JP7857930B2 JP2023529624A JP2023529624A JP7857930B2 JP 7857930 B2 JP7857930 B2 JP 7857930B2 JP 2023529624 A JP2023529624 A JP 2023529624A JP 2023529624 A JP2023529624 A JP 2023529624A JP 7857930 B2 JP7857930 B2 JP 7857930B2
Authority
JP
Japan
Prior art keywords
mass
acid
pencil lead
fired pencil
porous
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.)
Active
Application number
JP2023529624A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2022264643A1 (enExample
JPWO2022264643A5 (enExample
Inventor
達哉 村田
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.)
Mitsubishi Pencil Co Ltd
Original Assignee
Mitsubishi Pencil 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 Mitsubishi Pencil Co Ltd filed Critical Mitsubishi Pencil Co Ltd
Publication of JPWO2022264643A1 publication Critical patent/JPWO2022264643A1/ja
Publication of JPWO2022264643A5 publication Critical patent/JPWO2022264643A5/ja
Application granted granted Critical
Publication of JP7857930B2 publication Critical patent/JP7857930B2/ja
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/02—Pencils with graphite; Coloured pencils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/16—Making non-propelling pencils
    • B43K19/18—Making pencil writing-cores

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)
JP2023529624A 2021-06-18 2022-03-30 多孔質非焼成鉛筆芯体及び多孔質非焼成鉛筆芯体の製造方法 Active JP7857930B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021101630 2021-06-18
JP2021101630 2021-06-18
PCT/JP2022/016268 WO2022264643A1 (ja) 2021-06-18 2022-03-30 非焼成鉛筆芯及び非焼成鉛筆芯の製造方法

Publications (3)

Publication Number Publication Date
JPWO2022264643A1 JPWO2022264643A1 (enExample) 2022-12-22
JPWO2022264643A5 JPWO2022264643A5 (enExample) 2024-03-22
JP7857930B2 true JP7857930B2 (ja) 2026-05-13

Family

ID=84527073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023529624A Active JP7857930B2 (ja) 2021-06-18 2022-03-30 多孔質非焼成鉛筆芯体及び多孔質非焼成鉛筆芯体の製造方法

Country Status (6)

Country Link
US (1) US20240209230A1 (enExample)
EP (1) EP4357430A4 (enExample)
JP (1) JP7857930B2 (enExample)
KR (1) KR20240022534A (enExample)
CN (1) CN117396568A (enExample)
WO (1) WO2022264643A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2026046120A (ja) * 2024-08-30 2026-03-13 三菱鉛筆株式会社 非焼成鉛筆芯およびその製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069315A (ja) 2006-09-15 2008-03-27 Japan Atomic Energy Agency カルボキシメチルセルロースゲルの製造方法
JP2015209506A (ja) 2014-04-28 2015-11-24 三菱鉛筆株式会社 非焼成色鉛筆芯
CN108129914A (zh) 2017-12-08 2018-06-08 陕西科技大学 一种挠曲强度高的彩色铅笔芯及其制备方法
WO2020004390A1 (ja) 2018-06-25 2020-01-02 三菱鉛筆株式会社 非焼成鉛筆芯

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2726198B2 (ja) * 1992-06-03 1998-03-11 三菱鉛筆株式会社 非焼成色鉛筆芯とその製造方法
JP3922803B2 (ja) 1998-05-27 2007-05-30 株式会社サクラクレパス 非焼成色鉛筆芯
JP2006182969A (ja) * 2004-12-28 2006-07-13 Mitsubishi Pencil Co Ltd 非焼成色鉛筆芯
JP4919652B2 (ja) 2005-11-18 2012-04-18 三菱鉛筆株式会社 固形描画材及びその製造方法
US9090784B2 (en) 2010-08-05 2015-07-28 Mitsubishi Pencil Company, Limited Solid drawing material and solid drawing tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069315A (ja) 2006-09-15 2008-03-27 Japan Atomic Energy Agency カルボキシメチルセルロースゲルの製造方法
JP2015209506A (ja) 2014-04-28 2015-11-24 三菱鉛筆株式会社 非焼成色鉛筆芯
CN108129914A (zh) 2017-12-08 2018-06-08 陕西科技大学 一种挠曲强度高的彩色铅笔芯及其制备方法
WO2020004390A1 (ja) 2018-06-25 2020-01-02 三菱鉛筆株式会社 非焼成鉛筆芯

Also Published As

Publication number Publication date
JPWO2022264643A1 (enExample) 2022-12-22
US20240209230A1 (en) 2024-06-27
EP4357430A1 (en) 2024-04-24
CN117396568A (zh) 2024-01-12
EP4357430A4 (en) 2025-06-25
KR20240022534A (ko) 2024-02-20
WO2022264643A1 (ja) 2022-12-22

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