Antiperspirant and deodorant compositions comprising capsules

1. An antiperspirant or deodorant composition comprising

a population of capsules,

the capsules comprising a core and a shell surrounding the core,

wherein the core comprises perfume raw materials,

wherein the shell comprises:

a substantially inorganic first shell component comprising

a condensed layer and a nanoparticle layer, wherein the condensed layer comprises a condensation product of a precursor,

wherein the nanoparticle layer comprises inorganic nanoparticles, and

wherein the condensed layer is disposed between the core and the nanoparticle layer;

an inorganic second shell component surrounding the first shell component, wherein the second shell component surrounds the nanoparticle layer;

wherein the precursor comprises at least one compound from the group consisting of Formula (I), Formula (II), and a mixture thereof,

wherein Formula (I) is (M v O z Y n ) w ,

wherein Formula (II) is (M v O z Y n R 1 p ) w ,

wherein for Formula (I), Formula (II), or the mixture thereof:

each M is independently selected from the group consisting of silicon, titanium, and aluminum,

v is the valence number of M and is 3 or 4,

z is from 0.5 to 1.6,

each Y is independently selected from —OH, —OR 2 , halogen,

—NH 2 , —NHR 2 , —N(R 2 ) 2 , and

wherein R 2 is a C 1 to C 20 alkyl, C 1 to C 20 alkylene, C 6 to C 22 aryl, or a 5-12 membered heteroaryl, wherein the heteroaryl comprises from 1 to 3 ring heteroatoms selected from O, N, and S,

wherein R 3 is a H, C 1 to C 20 alkyl, C 1 to C 20 alkylene, C 6 to C 22 aryl, or a 5-12 membered heteroaryl, wherein the heteroaryl comprises from 1 to 3 ring heteroatoms selected from O, N, and S,

w is from 2 to 2000;

wherein for Formula (I),

n is from 0.7 to (v−1); and

wherein for Formula (II),

n is from 0 to (v−1),

each R 1 is independently selected from the group consisting of: a C 1 to C 30 alkyl; a C 1 to C 30 alkylene; a C 1 to C 30 alkyl substituted with a member selected from the group consisting of a halogen, —OCF 3 , —NO 2 , —CN, —NC, —OH, —OCN, —NCO, alkoxy, epoxy, amino, mercapto, acryloyl, —CO 2 H, —C(O)-alkyl, —C(O)O-aryl, and —C(O)O-heteroaryl; and a C 1 to C 30 alkylene substituted with a member selected from the group consisting of a halogen, —OCF 3 , —NO 2 , —CN, —NC, —OH, —OCN, —NCO, alkoxy, epoxy, amino, mercapto, acryloyl, —C(O)OH, —C(O)O-alkyl, —C(O)O-aryl, and —C(O)O-heteroaryl; and

p is a number that is greater than zero and is up to pmax,

wherein p max=60/[9 *Mw (R 1 )+8],

 wherein Mw(R 1 ) is the molecular weight of the R 1 group.

2. The composition of claim 1 , wherein the precursor comprises at least one compound according to Formula (I).

3. The composition claim 1 , wherein the precursor comprises at least one compound according to Formula (II).

4. The composition of claim 1 , wherein the population of capsules is characterized by one or more of the following:

(a) a mean volume weighted capsule diameter of about 10 μm to about 200 μm;

(b) an average shell thickness of about 170 nm to about 1000 nm;

(c) a volumetric core/shell ratio of from about 50:50 to 99:1;

(d) the first shell component comprises no more than about 5% of organic content, by weight of the first shell component; or

(e) a mixture thereof.

5. The composition of claim 1 , wherein the compounds of Formula (I), Formula (II), or both are characterized by one or more of the following:

(a) a Polystyrene equivalent Weight Average Molecular Weight (Mw) of from about 700 Da to about 30,000 Da;

(b) a degree of branching of 0.2 to about 0.6;

(c) a molecular weight polydispersity index of about 1 to about 20; or

(d) a mixture thereof.

6. The composition of claim 1 , wherein for Formula (I), Formula (II), or both, M is silicon.

7. The composition of claim 1 , wherein for Formula (I), Formula (II), or both, Y is OR, wherein R is selected from a methyl group, an ethyl group, a propyl group, or a butyl group.

8. The composition of claim 1 , wherein the second shell component comprises a material selected from the group consisting of calcium carbonate, silica, and a combination thereof.

9. The composition of claim 1 , wherein the inorganic nanoparticles of the first shell component comprise at least one of metal nanoparticles, mineral nanoparticles, metal-oxide nanoparticles and/or semi-metal oxide nanoparticles.

10. The composition of claim 1 , wherein the inorganic second shell component comprises at least one of SiO 2 , TiO 2 , Al 2 O 3 , CaCO 3 , Ca 2 SiO 4 , Fe 2 O 3 , Fe 3 O 4 , iron, silver, nickel, gold, copper, and/or clay.

11. The composition of claim 1 , further comprising ethanol.

12. The composition of claim 1 , further comprising from about 5% to about 10%, by weight of the composition, ethanol.

13. The composition of claim 1 , further comprising at least about 5%, by weight of the composition, water.

14. The composition of claim 1 , further comprising at least about 70%, by weight of the composition, water.

15. The composition of claim 1 , wherein the composition comprises an emulsion.

16. The composition of claim 1 , wherein the composition is substantially without water.

17. The composition of claim 1 , further comprising at least about 25%, by weight of the composition, of a glycol.

18. The composition of claim 1 , further comprising a short-chain alcohol.

19. The composition of claim 1 , wherein the composition is substantially free of an antiperspirant active.

20. The composition of claim 1 , wherein the composition is substantially free of cyclopentasiloxane.