Title:
筆記用具、製図用具および／または描画用具のための芯、並びにその製造方法
Document Type and Number:
Japanese Patent JP7368601
Kind Code:
B2
Abstract:
A core for writing, drawing and/or painting implements, including at least one binder, at least one wax, at least one coloring substance and at least one filler. The core is in the form of a lead core and/or colored core, the at least one binder is hyroxypropyl cellulose and the content of the at least one binder is 7 to 45 wt. %.
Inventors:
Martin Jacob
Application Number:
JP2022513408A
Publication Date:
October 24, 2023
Filing Date:
August 20, 2020
Export Citation:
Assignee:
STAEDTLER Mars GmbH & Co. KG
International Classes:
C09D11/16
Domestic Patent References:
| JP2008088263A | ||||
| JP49012925A | ||||
| JP2011528045A | ||||
| JP2008045043A | ||||
| JP5039449A | ||||
| JP49063525A |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Taku Morita
Junichi Maekawa
Hideo Nagashima
Ueshima class
Taku Morita
Junichi Maekawa
Hideo Nagashima
Ueshima class
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