Salt-free composite marking based on chiral liquid crystal precursors comprising chiral acrylate dopants

Salt-free composite marking based on chiral liquid crystal precursors comprising chiral acrylate dopants

  • CN 105,899,643 B
  • Filed: 11/06/2014
  • Issued: 07/16/2021
  • Est. Priority Date: 11/08/2013
  • Status: Active Grant
First Claim
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1. A substrate having thereon a marking or layer comprising a cured chiral liquid crystal precursor composition, wherein said chiral liquid crystal precursor composition is salt-free and comprises (I) one or more nematic compounds a and (ii) one or more chiral dopant compounds B capable of inducing a cholesteric state of said chiral liquid crystal precursor composition and having the formula (I):

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