Cubic liquid crystalline compositions and methods for their preparation
OwnerPatrick Thomas Spicer, William Broderick Small, II +1inventors
InventorsPatrick Thomas Spicer, William Broderick Small, II, Matthew Lawrence Lynch
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Abstract
A dry powder cubic gel precursor comprising an encapsulating compound, an amphiphile capable of forming a cubic liquid crystalline phase, and optionally a solvent. The encapsulating compound (A), amphiphile (B), and optional solvent (C) are present in mass fractions relative to each other such that 1.0=a+b+c wherein a is the mass fraction of A, b is the mass fraction of B, and c is the mass fraction of C. Further, 1.0>a>0, 1.0>b>0, 1.0>c>0 and a, b, and c do not fall within a cubic liquid crystalline phase region on a phase diagram representing phase behavior of A, B, and C.
Claims16
A cubic gel precursor comprising:
- (A) an encapsulating compound, (B) an amphiphile capable of forming a cubic liquid crystalline phase, and optionally (C) a solvent, wherein ingredients (A), (B), and optionally (C) are present in mass fractions relative to each other such that 1.0=a+b+c wherein a is the mass fraction of ingredient (A), b is the mass fraction of ingredient (B), and c is the mass fraction of ingredient (C), and wherein the mass-fractional relationship between a, b and c is 0.75≧a≧0.5, 0.5≧b≧0.25, and 0.2≧c≧0;
- and with the proviso that a, b, and c do not fall within a cubic liquid crystalline phase region on a phase diagram representing phase behavior of ingredients (A), (B), and (C).
Dependencies are inferred from the claim text.