Invention Grant
- Patent Title: Substrate with a modified liquid crystal polymer marking
- Patent Title (中): 基材与改性液晶聚合物标记
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Application No.: US13479913Application Date: 2012-05-24
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Publication No.: US08821756B2Publication Date: 2014-09-02
- Inventor: Thomas Tiller , Olivier Rozumek , Tristan Jauzein , Andrea Callegari , Frédéric Gremaud , Brahim Kerkar
- Applicant: Thomas Tiller , Olivier Rozumek , Tristan Jauzein , Andrea Callegari , Frédéric Gremaud , Brahim Kerkar
- Applicant Address: CH Prilly
- Assignee: Sicpa Holding SA
- Current Assignee: Sicpa Holding SA
- Current Assignee Address: CH Prilly
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: EP11168536 20110601
- Main IPC: C09K19/58
- IPC: C09K19/58 ; C09K19/54 ; B42D15/00 ; B41M3/14 ; B41M5/28 ; C09K19/34 ; C09K19/04
Abstract:
The present invention relates to a marking on an item or substrate, which marking is based on a chiral nematic (also called cholesteric) liquid crystal precursor composition. Prior to curing the chiral liquid crystal precursor composition in the chiral liquid crystal state at least one optical property exhibited by the composition is modified by two modifying agents of different types in at least one area of the item or substrate.
Public/Granted literature
- US20120328852A1 SUBSTRATE WITH A MODIFIED LIQUID CRYSTAL POLYMER MARKING Public/Granted day:2012-12-27
Information query
