JPS56109266A - Noncalcined pencil lead - Google Patents

Noncalcined pencil lead

Info

Publication number
JPS56109266A
JPS56109266A JP1103680A JP1103680A JPS56109266A JP S56109266 A JPS56109266 A JP S56109266A JP 1103680 A JP1103680 A JP 1103680A JP 1103680 A JP1103680 A JP 1103680A JP S56109266 A JPS56109266 A JP S56109266A
Authority
JP
Japan
Prior art keywords
noncalcined
extender
org
mixt
coloring matter
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.)
Pending
Application number
JP1103680A
Other languages
Japanese (ja)
Inventor
Mitsuru Yoshida
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
Priority to JP1103680A priority Critical patent/JPS56109266A/en
Publication of JPS56109266A publication Critical patent/JPS56109266A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE: To provide the noncalcined pancil lead which has high flexural strength, by a method wherein a coloring matter and an extender are treated with an org. titanate coupling agent and then blended.
CONSTITUTION: A coloring matter (e.g. carbon black or an org. pigment) and an extender (e.g. talc or calcium carbonate) are introduced into a high-speed powder mixer such as Henschel mixer, while mixing at ordinary temperatures, an org. titanate coupling agent (e.g. a monoalkoxy titanate or a coordinate titanate) is added dropwise to the mixt. Then a wax, a binder (a high-molecular material), a plasticizer and a solvent are added to the resulting mixt. of the surface-treated coloring matter and extender. The mixt. is kneaded to form a compsn. which is then molded to obtain the noncalcined pencil lead.
COPYRIGHT: (C)1981,JPO&Japio
JP1103680A 1980-02-01 1980-02-01 Noncalcined pencil lead Pending JPS56109266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1103680A JPS56109266A (en) 1980-02-01 1980-02-01 Noncalcined pencil lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1103680A JPS56109266A (en) 1980-02-01 1980-02-01 Noncalcined pencil lead

Publications (1)

Publication Number Publication Date
JPS56109266A true JPS56109266A (en) 1981-08-29

Family

ID=11766829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1103680A Pending JPS56109266A (en) 1980-02-01 1980-02-01 Noncalcined pencil lead

Country Status (1)

Country Link
JP (1) JPS56109266A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02173077A (en) * 1988-12-24 1990-07-04 Tombow Pencil Co Ltd Stone marking chalk
JP2005116525A (en) * 2003-09-25 2005-04-28 Ge Medical Systems Global Technology Co Llc X-ray tube energy absorption device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02173077A (en) * 1988-12-24 1990-07-04 Tombow Pencil Co Ltd Stone marking chalk
JP2005116525A (en) * 2003-09-25 2005-04-28 Ge Medical Systems Global Technology Co Llc X-ray tube energy absorption device

Similar Documents

Publication Publication Date Title
JPS56109266A (en) Noncalcined pencil lead
JPS5413409A (en) Method and equipment for producing steel-making pellets using sludge containing oil and iron
JPS56112975A (en) Rust-preventing material for automobile and rust- preventing treatment
JPS5480331A (en) Colorant for thermoplastic resin
JPS57198769A (en) Ink for writing utensils
JPS57174327A (en) Color-improved polyolefin composition
JPS53102333A (en) High solid paint composition
JPS55133438A (en) Polyolefin resin composition
JPS5232024A (en) Method for the preparation of pigment
JPS53121827A (en) Manufacture of coating powder
JPS5711829A (en) Yellow type pigment
JPS57178251A (en) Manufacture of toner
JPS55127474A (en) Production of color pencil lead
JPS5672059A (en) Aqueous resin paint
JPS55152736A (en) Electroconductive resin composition
JPS57149341A (en) Colorant for polyolefin
JPS5693769A (en) Preparation of powder paint
JPS5790014A (en) Epoxy resin composition
JPS55112282A (en) Manufacture of pencil core
JPS53149228A (en) Preparation of powder coating compound
JPS5647463A (en) Solid painting material
JPS5728169A (en) Preparation of water-dispersible coating material
JPS5271546A (en) Method for dispersing pigments in to synthetic resins
JPS54106540A (en) Anti-fouling agent for underwater
JPS5560566A (en) Paint