Title:
MULTILAYER FLAKE WITH HIGH LEVEL OF CODING
Document Type and Number:
WIPO Patent Application WO/2013/143829
Kind Code:
A3
Abstract:
Coding flake or film including at least two chiral liquid crystal polymer (CLCP) layers with a first CLCP layer (1) that has a first detectable parameter and a second CLCP layer (3) including a second detectable parameter; at least one additional layer (2) including a third detectable parameter, the at least one additional layer comprising a material that is not a chiral liquid crystal polymer; and wherein at least the third detectable parameter is different from each of the first detectable parameter and the second detectable parameter.
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Inventors:
CALLEGARI ANDREA (CH)
GREMAUD FREDERIC (CH)
PASQUIER CECILE (CH)
JAUZEIN TRISTAN (CH)
ROZUMEK OLIVIER (CH)
KERKAR BRAHIM (CH)
TILLER THOMAS (CH)
RASCAGNERES STEPHANIE (FR)
GREMAUD FREDERIC (CH)
PASQUIER CECILE (CH)
JAUZEIN TRISTAN (CH)
ROZUMEK OLIVIER (CH)
KERKAR BRAHIM (CH)
TILLER THOMAS (CH)
RASCAGNERES STEPHANIE (FR)
Application Number:
PCT/EP2013/054815
Publication Date:
December 19, 2013
Filing Date:
March 11, 2013
Export Citation:
Assignee:
SICPA HOLDING SA (CH)
International Classes:
C09D4/06; B42D15/00; G06K19/08; C09K11/06; C09K19/38
Foreign References:
| US20030085380A1 | 2003-05-08 | |||
| EP2028225A1 | 2009-02-25 | |||
| US6582781B1 | 2003-06-24 | |||
| GB2282145A | 1995-03-29 | |||
| US20080106725A1 | 2008-05-08 | |||
| US20100200649A1 | 2010-08-12 | |||
| US7702108B2 | 2010-04-20 | |||
| US7162035B1 | 2007-01-09 | |||
| US20070071951A1 | 2007-03-29 |
Other References:
See also references of EP 2830887A2
Attorney, Agent or Firm:
DOSSMANN, Gérard (8 Avenue Percier, Paris, FR)
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