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Optical and capacitance type, phase transition, humidity-responsive devices

  • US 5,082,588 A
  • Filed: 08/02/1990
  • Issued: 01/21/1992
  • Est. Priority Date: 07/27/1987
  • Status: Expired due to Term
First Claim
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1. A lyotropic liquid crystal precursor salt complex that is an alkali metal salt of an aryl substituted keto organic acid, the salt having an ionic polar ring complex phase having(A) an organic aryl ring structure, and(B) a ring formed from the keto group of the organic acid portion, intervening ring-members, and the alkali metal ion, the ring having at least 5 members in which the alkali metal ion is a ring member that bonds to the keto group to form the ring complex, the complex having the general structure:

  • ##STR2## in which the 5 to 13 member ring is formed from the alkali metal (Me) ring member that bonds to the keto group according to the following structure;

    ##STR3## where RM is one or more ring members when the complex ring is a 6 to 13 member ring; and

    the following structure represents the 5 member ring;

    ##STR4##

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