发明申请
US20220063320A1 LEAD CASING FOR PENCIL, AND PENCIL THEREOF FOR WRITING, DRAWING, MARKING, PLOTTING, AND COLORING
有权
基本信息:
- 专利标题： LEAD CASING FOR PENCIL, AND PENCIL THEREOF FOR WRITING, DRAWING, MARKING, PLOTTING, AND COLORING
- 申请号：US17414926 申请日：2019-12-17
- 公开(公告)号：US20220063320A1 公开(公告)日：2022-03-03
- 发明人： Julien GOUEREC, I
- 申请人： SOCIÉTÉ BIC
- 申请人地址： FR CLICHY
- 专利权人： SOCIÉTÉ BIC
- 当前专利权人： SOCIÉTÉ BIC
- 当前专利权人地址： FR CLICHY
- 优先权： EP18306715.6 20181218
- 国际申请： PCT/EP2019/085747 WO 20191217
- 主分类号： B43K19/02
- IPC分类号： B43K19/02 ; B43K19/16
摘要：
There is a lead casing for pencil for writing, drawing, marking, plotting, and/or coloring. The casing is made of a composition having, by weight relative to the total weight of the lead casing for pencil: a) from 50 to 95% of a mixture of polylactic acid and bio-polyethylene in a weight ratio polylactic acid/bio-polyethylene ranging from 60/40 to 90/10, and b) from 5 to 40% of mineral fillers chosen in the group consisting of shellfish shells, more specifically oyster shells, and even more specifically milled oyster shells. There is also a pencil including the lead casing of the disclosure for writing, drawing, marking, plotting, and/or coloring, as well as a method for manufacturing such a pencil.
公开/授权文献:
IPC结构图谱:
| B | 作业；运输 |
| --B43 | 书写或绘图器具；办公用品 |
| ----B43K | 书写或绘图器具 |
| ------B43K19/00 | 非活动铅笔；铁笔；彩笔；粉笔 |
| --------B43K19/02 | .铅笔；彩色铅笔 |