JPS56120706A - Preparation of plastic eraser - Google Patents

Preparation of plastic eraser

Info

Publication number
JPS56120706A
JPS56120706A JP2473280A JP2473280A JPS56120706A JP S56120706 A JPS56120706 A JP S56120706A JP 2473280 A JP2473280 A JP 2473280A JP 2473280 A JP2473280 A JP 2473280A JP S56120706 A JPS56120706 A JP S56120706A
Authority
JP
Japan
Prior art keywords
monomer
eraser
plasticizer
base material
resin
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
JP2473280A
Other languages
Japanese (ja)
Other versions
JPH0357123B2 (en
Inventor
Akira Tsutsumi
Toshie Nagatani
Yasuhiro Takahashi
Noritaka Sakurai
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.)
Pentel Co Ltd
Original Assignee
Pentel 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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP2473280A priority Critical patent/JPS56120706A/en
Publication of JPS56120706A publication Critical patent/JPS56120706A/en
Publication of JPH0357123B2 publication Critical patent/JPH0357123B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To obtain the titled eraser having improved strength and erasing properties, by blending a plastic eraser rubber base material consisting of a resin and a plasticizer as main ingredients with a polymerizable vinyl monomer, followed by gelation under heating.
CONSTITUTION: A rubber eraser base material consisting of a resin (polyvinyl chloride, polyvinyl acetate, etc.), and a plasticizer as main ingredients is blended with a polymerizable vinyl monomer having two or more double bonds in one molecule, and gelatinized under heating. A methcrylate, e.g. trimethylolpropane trimethacrylate, a polyfunctional acrylate, e.g., ethylene glycol diacrylate, etc., dially phthalate, etc. is used as the polymerizable monomer. The use of a polymerization initiator together with the monomer widens the possible use range of the monomer and stortens the time required for the polymerization.
COPYRIGHT: (C)1981,JPO&Japio
JP2473280A 1980-02-29 1980-02-29 Preparation of plastic eraser Granted JPS56120706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2473280A JPS56120706A (en) 1980-02-29 1980-02-29 Preparation of plastic eraser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2473280A JPS56120706A (en) 1980-02-29 1980-02-29 Preparation of plastic eraser

Publications (2)

Publication Number Publication Date
JPS56120706A true JPS56120706A (en) 1981-09-22
JPH0357123B2 JPH0357123B2 (en) 1991-08-30

Family

ID=12146317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2473280A Granted JPS56120706A (en) 1980-02-29 1980-02-29 Preparation of plastic eraser

Country Status (1)

Country Link
JP (1) JPS56120706A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485520A (en) * 1979-11-03 1984-12-04 Firma J. S. Staedtler Foamed rubber erasers and process for the production thereof
WO2017178638A1 (en) * 2016-04-15 2017-10-19 Ramlat Limited Composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54155246A (en) * 1978-05-30 1979-12-07 Shinetsu Polymer Co Vinyl chrolide resin based eraser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54155246A (en) * 1978-05-30 1979-12-07 Shinetsu Polymer Co Vinyl chrolide resin based eraser

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485520A (en) * 1979-11-03 1984-12-04 Firma J. S. Staedtler Foamed rubber erasers and process for the production thereof
WO2017178638A1 (en) * 2016-04-15 2017-10-19 Ramlat Limited Composition
US10889711B2 (en) 2016-04-15 2021-01-12 Delta Of Sweden Ab Composition
CN115960426A (en) * 2016-04-15 2023-04-14 瑞典德尔塔公司 Model compound and preparation method and application thereof
US11795318B2 (en) 2016-04-15 2023-10-24 Delta Of Sweden Ab Composition

Also Published As

Publication number Publication date
JPH0357123B2 (en) 1991-08-30

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