Cubic liquid crystalline compositions and methods for their...

Details Cubic liquid crystalline compositions and methods for their... Cubic liquid crystalline compositions and methods for their...

2006-03-07

2006-03-07

Spear, James M. (Department: 1618)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

C424S489000, C424S493000, C424S494000

Reexamination Certificate

active

07008646

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.

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