发明名称 Lead for writing, illustrating and/or marking devices and manufacturing method
摘要 <p>Cartridge comprises at least one filler, at least one binding agent, at least one lubricant, and a wax based on hydrocarbon and/or paraffin with a melting point of greater than 75[deg] C, where the filler exhibits a layer form or flake form crystal structure and/or less particle size. An independent claim is included for producing the cartridge, comprising mixing the binding agent, lubricant, filler, wax and optionally further additives in a mixer, adding water to the cartridge to provide a defined humidity, forming the cartridge preblock, extruding the cartridge preblock to a pressed cartridge, and drying the cartridge.</p>
申请公布号 EP2133214(A1) 申请公布日期 2009.12.16
申请号 EP20090007260 申请日期 2009.05.30
申请人 J.S. STAEDTLER GMBH & CO. KG 发明人 WOHLLEB, THOMAS
分类号 B43K19/00;B43K19/18;C09D13/00 主分类号 B43K19/00
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