发明名称 METHOD OF MAKING WRITABLE ERASABLE ARTICLES AND ARTICLES THEREFROM
摘要 A method of making erasable article (100) comprises: providing an electret film (110) having first and second opposed major surfaces; applying a polymerizable precursor composition to at least a portion of the first major surface (120); polymerizing the polymerizable precursor composition to form a non-tacky crosslinked polymeric layer (130); and exposing the electret film (110) and non-tacky crosslinked polymeric layer (130) to a direct current corona discharge, wherein the second major surface (122) is free of adhesive material. Erasable articles and kits containing them are also disclosed.
申请公布号 WO2004021379(A3) 申请公布日期 2004.05.13
申请号 WO2003US20786 申请日期 2003.07.02
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 BHARTI, VIVEK;JONES, CLINTON, L.;GUSTAFSON, FREDERICK, J.
分类号 B43L1/10;B32B27/10;B41M5/00;B41M5/50;B41M5/52;B43L1/00;C08J7/16;C09D4/00;C09D4/02;C09D7/12 主分类号 B43L1/10
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