Title:
TRANSPARENT ERASER
Document Type and Number:
Japanese Patent JP2023029204
Kind Code:
A
Abstract:
To provide a transparent eraser which is excellent in erasability and resistance to migration of a plasticizer, and is hardly whitened by water absorption.SOLUTION: A total of 110 to 127 pts.mass of a benzoic acid ester plasticizer and an alkylsulfonate plasticizer are blended with respect to 100 pts.mass of a vinyl chloride resin having a viscosity average polymerization degree of 1,700 or more and less than 2,800. Further, the content of the alkyl sulfonate plasticizer is set to be less than 30 mass% (excluding 0 mass%) of the total mass of the plasticizer, or 43 to 48 mass% of vinyl chloride resin having a viscosity average polymerization degree of 1,700 or more and less than 2,800, 35 to 55 mass% of the benzoic acid ester plasticizer, and 1 to 17 mass% of the alkylsulfonate plasticizer are blended to make the transparent eraser.SELECTED DRAWING: None
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Inventors:
ITO HITOMI
MITARAI CHIKA
YAMAUCHI TAKASHI
MIYAZAKI KEIICHI
MITARAI CHIKA
YAMAUCHI TAKASHI
MIYAZAKI KEIICHI
Application Number:
JP2022068760A
Publication Date:
March 03, 2023
Filing Date:
April 19, 2022
Export Citation:
Assignee:
PLUS KK
International Classes:
B43L19/00; C08K5/10; C08K5/42; C08L27/06
Attorney, Agent or Firm:
Ciel International Patent Office
Keiko Omori
Keiko Omori