发明名称 |
Powdered pencil II |
摘要 |
The invention relates to a colored lead or a colored chalk with a porous basic lead body, the primary components of which are a filler material and a non-ionic associative thickener, wherein the cavities in the porous basic lead body are filled with a solid or liquid phase.
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申请公布号 |
US2003100629(A1) |
申请公布日期 |
2003.05.29 |
申请号 |
US20020327073 |
申请日期 |
2002.12.24 |
申请人 |
APPEL REINER;LUGERT GERHARD |
发明人 |
APPEL REINER;LUGERT GERHARD |
分类号 |
C09D13/00;(IPC1-7):C09D13/00 |
主分类号 |
C09D13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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