JPS5734170A - Ball point ink - Google Patents

Ball point ink

Info

Publication number
JPS5734170A
JPS5734170A JP10848980A JP10848980A JPS5734170A JP S5734170 A JPS5734170 A JP S5734170A JP 10848980 A JP10848980 A JP 10848980A JP 10848980 A JP10848980 A JP 10848980A JP S5734170 A JPS5734170 A JP S5734170A
Authority
JP
Japan
Prior art keywords
polynorbornane
boiling
ink
solvent
pigment
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.)
Granted
Application number
JP10848980A
Other languages
Japanese (ja)
Other versions
JPS625471B2 (en
Inventor
Noriaki Tsunoda
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 JP10848980A priority Critical patent/JPS5734170A/en
Publication of JPS5734170A publication Critical patent/JPS5734170A/en
Publication of JPS625471B2 publication Critical patent/JPS625471B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To provide the titled ink which can be erased only by mechanically rubbing it with a conventional eraser for pencils after writing, by incorporating a pigment and polynorbornane into a mixture of low-boiling and high-boiling org. solvents.
CONSTITUTION: 12W30pts.wt. pigment (A) and 15W45pts.wt. polynorbornane having a repeating unit of formula I and an MW of not less than 2,000,000 or mixture (B) of said polynorbornane and trans-1,4-polyisoprene having a repeating unit of formula II are incorporated with a mixed solvent consisting of 10W50pts.wt. low-boiling org. solvent (C) having a b.p. of not higher than 180°C and serving as a plasticizer for component B, such as xylene, and 15W35pts.wt. high-boiling org. solvent having a b.p. of not lower than 300°C such as dioctyl phthalate.
EFFECT: The setting speed of the ink is quick. Even immediately after writing, there can be formed drawing having high setting strength to paper.
COPYRIGHT: (C)1982,JPO&Japio
JP10848980A 1980-08-07 1980-08-07 Ball point ink Granted JPS5734170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10848980A JPS5734170A (en) 1980-08-07 1980-08-07 Ball point ink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10848980A JPS5734170A (en) 1980-08-07 1980-08-07 Ball point ink

Publications (2)

Publication Number Publication Date
JPS5734170A true JPS5734170A (en) 1982-02-24
JPS625471B2 JPS625471B2 (en) 1987-02-05

Family

ID=14486054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10848980A Granted JPS5734170A (en) 1980-08-07 1980-08-07 Ball point ink

Country Status (1)

Country Link
JP (1) JPS5734170A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980476A (en) * 1982-10-29 1984-05-09 Pilot Pen Co Ltd:The Erasable ink for ball-point pen
JPS60190481A (en) * 1984-03-13 1985-09-27 Mitsubishi Pencil Co Ltd Ink for ball-point pen
DE3913618A1 (en) * 1988-04-25 1989-11-02 Matsushita Electric Works Ltd PERMANENT MAGNET ROTOR

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980476A (en) * 1982-10-29 1984-05-09 Pilot Pen Co Ltd:The Erasable ink for ball-point pen
JPH0354712B2 (en) * 1982-10-29 1991-08-21
JPS60190481A (en) * 1984-03-13 1985-09-27 Mitsubishi Pencil Co Ltd Ink for ball-point pen
DE3913618A1 (en) * 1988-04-25 1989-11-02 Matsushita Electric Works Ltd PERMANENT MAGNET ROTOR
US4954736A (en) * 1988-04-25 1990-09-04 Matsushita Electric Works, Ltd. Permanent magnet rotor with magnets secured by synthetic resin

Also Published As

Publication number Publication date
JPS625471B2 (en) 1987-02-05

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