Invention Grant
- Patent Title: Writing, drawing, decorating or cosmetic pencil
- Patent Title (中): 写作,绘画,装饰或化妆铅笔
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Application No.: US13054046Application Date: 2009-07-11
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Publication No.: US08747003B2Publication Date: 2014-06-10
- Inventor: Andreas Thies , Nikolas Lins , Christine Delapierre-Kohl , Johannes Herbolsheimer , Martin Jakob , Harald Lang , Simone Arthen
- Applicant: Andreas Thies , Nikolas Lins , Christine Delapierre-Kohl , Johannes Herbolsheimer , Martin Jakob , Harald Lang , Simone Arthen
- Applicant Address: DE Nürnberg
- Assignee: J.S. Staedtler GmbH & Co. KG
- Current Assignee: J.S. Staedtler GmbH & Co. KG
- Current Assignee Address: DE Nürnberg
- Agency: Lucas & Mercanti, LLP
- Agent Klaus P. Stoffel
- Priority: DE102008034015 20080715
- International Application: PCT/EP2009/005052 WO 20090711
- International Announcement: WO2010/006744 WO 20100121
- Main IPC: B43K19/00
- IPC: B43K19/00

Abstract:
A pencil that includes a polymer-bonded lead, a polymerbonded wood substitute material that includes an organic filler and covers or surrounds the lead along its length, and an adhesion promoter layer disposed between the lead and the wood substitute material. The lead and the wood substitute material each have a polymer. The polymer in the lead being incompatible with the polymer in the wood substitute material so that the polymer of the lead and the polymer of the wood substitute material do not create any connection with one another. The adhesion promoter layer is connected to the polymer in the lead and to the polymer in the wood substitute material so that the adhesion promoter layer forms a connection with the polymer in the lead and with the polymer of the substitute material. The organic filler is formed by particles having a maximum particle size of 250 μm.
Public/Granted literature
- US20110129284A1 WRITING, DRAWING, DECORATING OR COSMETIC PENCIL Public/Granted day:2011-06-02
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