Title:
PHOTOCHROMIC DRAWING MATERIAL
Document Type and Number:
Japanese Patent JPH07188590
Kind Code:
A
Abstract:
PURPOSE: To obtain a photochromic drawing material reversibly coloring, dying away in color and changing in color with ultraviolet light, providing pleasure which has never existed, containing a photochromic color material as a colorant.
CONSTITUTION: These colors comprise a photochromic color material, a water- soluble polymer (e.g. glue, gum arabic or dextrin), a wetting agent (e.g. ethylene glycol or glycerol) and an extender pigment (e.g. calcium carbonate, kaolin or talc). pigment.
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Inventors:
TAKAGISHI IKUO
Application Number:
JP34872493A
Publication Date:
July 25, 1995
Filing Date:
December 27, 1993
Export Citation:
Assignee:
PENTEL KK
International Classes:
C09K9/00; C09D5/06; C09D11/00; C09D13/00; (IPC1-7): C09D5/06; C09D11/00; C09D13/00
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