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LEAD, CHALK OR COLOR TABLET FOR WRITING, DRAWING AND/OR COSMETICS PURPOSES, PENCIL CONTAINING A LEAD, AND METHOD FOR PRODUCING A LEAD, CHALK OR COLOR TABLET
专利权人:
FABER-CASTELL AG
发明人:
HARALD VON GODIN,REINER APPEL,GERHARD LUGERT
申请号:
US15591143
公开号:
US20180021230A1
申请日:
2017.05.10
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A lead or chalk or color tablet for writing, drawing and/or cosmetics purposes, contains at least one sugar and/or sugar alcohol and/or pentaerythritol, at least one cellulose derivative and/or starch derivative and at least one surfactant. The at least one surfactant is selected from the group of sulfuric acid fatty acid ester salts and/or fatty acid sulfoalkyl esters and/or ethoxylated forms of alkali metal fatty acid sulfates. A pencil having such a lead and to a method for producing a lead or chalk or color tablet are also provided.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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