- 专利标题： Lead casing for pencil, and pencil thereof for writing, drawing, marking, plotting, and coloring
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申请号： US17414927申请日： 2019-12-17
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公开(公告)号： US12070966B2公开(公告)日： 2024-08-27
- 发明人: Julien Gouerec
- 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
- 代理机构： Ruggiero McAllister & McMahon LLC
- 优先权： EP 306712 2018.12.18
- 国际申请： PCT/EP2019/085570 2019.12.17
- 国际公布： WO2020/127209A 2020.06.25
- 进入国家日期： 2021-06-16
- 主分类号： B43K19/14
- IPC分类号： B43K19/14 ; B29C48/00 ; B29C48/06 ; B29C48/21 ; B43K19/02 ; B43K19/16 ; B29K9/06 ; B29K33/18 ; B29K67/00 ; B29K105/00 ; B29K511/14 ; B29L31/00
摘要：
There is a lead casing for pencil for writing, drawing, marking, plotting, and/or coloring, 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 polybutylene adipate terephthalate in a weight ratio polylactic acid/polybutylene adipate terephthalate ranging from 60/40 to 90/10, and
b) from 5 to 40% of vegetable fillers chosen in the group consisting of wood fibers.
There is also a pencil including the lead casing for the pencil of the disclosure for writing, drawing, marking, plotting, and/or coloring, as well as a method for manufacturing such a pencil.
a) from 50 to 95% of a mixture of polylactic acid and polybutylene adipate terephthalate in a weight ratio polylactic acid/polybutylene adipate terephthalate ranging from 60/40 to 90/10, and
b) from 5 to 40% of vegetable fillers chosen in the group consisting of wood fibers.
There is also a pencil including the lead casing for the pencil of the disclosure for writing, drawing, marking, plotting, and/or coloring, as well as a method for manufacturing such a pencil.
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