发明名称 UNBURNED COLOR PENCIL LEAD
摘要 An unburned color pencil lead having improved lead moldability and lead bending strength which comprises a colorant, a binder, a loading material, a wax and/or fat, and a hydrophilic surfactant which is a polyoxyethylene adduct of a fat. This unburned color pencil lead which has improved water resistance contains a water-repellent substance besides the colorant, binder, loading material, wax and/or fat, and hydrophilic surfactant. When the unburned color pencil lead contains platy alumina and/or a platy alumina hydrate as the loading material, it facilitates quality control.
申请公布号 WO0198417(A1) 申请公布日期 2001.12.27
申请号 WO2001JP05237 申请日期 2001.06.15
申请人 SAKURA COLOR PRODUCTS CORPORATION;HASHIMOTO, YUKA;NISHINO, HIROKI 发明人 HASHIMOTO, YUKA;NISHINO, HIROKI
分类号 C09D13/00;(IPC1-7):C09D13/00 主分类号 C09D13/00
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