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US 2002/0153509 A1Published application
Functionalized cubic liquid crystalline phase materials and methods for their preparation and use
AssigneeThe Procter & Gamble Company
InventorsMatthew Lawrence Lynch, Patrick Thomas Spicer
Life of this patent
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Abstract
Functionalized cubic gel precursors, functionalized cubic liquid crystalline gels, dispersions of functionalized cubic gel particles and functionalized cubic gel particles are disclosed. Methods for preparing and using the precursors, gels, dispersions, and particles are also disclosed. The precursors, gels, dispersions, and particles are used to deliver active ingredients to substrates.
Claims20
A cubic liquid crystalline phase precursor comprising:
- (A) an amphiphile capable of forming a cubic liquid crystalline phase,
- (B) an optional solvent,
- (C) an additive selected from the group consisting of an anchor, a tether, and combinations thereof, and
- wherein (A), (B), and (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), and wherein 1.0>a>0, 1.0>b 0, 1.0>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 (A), (B), and (C).
4 more elements
A bulk cubic liquid crystalline gel comprising:
- (A) an amphiphile capable of forming a cubic liquid crystalline phase,
- (B) a solvent,
- (C) an additive selected from the group consisting of an anchor, a tether, and combinations thereof, and
- wherein (A), (B), and (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), and wherein 1.0>a>0, 1.0>b>0, 1.0>c>0;
- and with the proviso that a, b, and c fall within a cubic liquid crystalline phase region on a phase diagram representing phase behavior of (A), (B), and (C).
4 more elements
A disperison of cubic liquid crystalline gel particles comprising:
- (A) an amphiphile capable of forming a cubic liquid crystalline phase,
- (B) a solvent, and
- (C) an additive selected from the group consisting of an anchor, a tether, and combinations thereof,
- wherein (A), (B), and (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), and wherein 1.0>a>0, 1.0>b>0, 1.0>c>0;
- and with the proviso that a, b, and c fall within a region representing cubic liquid crystalline phase in combination with at least one other phase on a phase diagram representing phase behavior of (A), (B), and (C), with the proviso that the dispersion has a form of functionalized cubic liquid crystalline gel particles dispersed in the other phase.
4 more elements
Dependencies are inferred from the claim text.