发明名称 Multi-color crayon or oil pastel and method of producing the same
摘要 A multi-color crayon or oil pastel which features excellent drawing property, vividness of color and intimate adhesion of multi-color picture in combination, and a method of preparing the same. The multi-color crayon or oil pastel comprises a continuous matrix of a crayon or oil pastel material and a plurality of kinds of granular coloring phases dispersed in the matrix, the granular coloring phases being formed of a collapsible granular material which includes a coloring matter of a hue different from that of the continuous matrix, a body, and a water-soluble or solvent-soluble high molecular material or a water-swelling clay mineral (e.g., bentonite).
申请公布号 US6673138(B2) 申请公布日期 2004.01.06
申请号 US20020096309 申请日期 2002.03.13
申请人 BUNCHO CORPORATION;DONG-A PENCEL CO., LTD. 发明人 SEKI KOJI;KANO YOSHIMI
分类号 C09D11/16;C09D13/00;(IPC1-7):C09D13/00 主分类号 C09D11/16
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