US 11,938,349 B2
Antiperspirant and deodorant compositions comprising capsules
Jonathan Robert Cetti, Mason, OH (US); Andre Martim Barros, Woluwe Saint Etienne (BE); Mariana B T Cardoso, Brussels (BE); Johan Smets, Lubbeek (BE); Steven Daryl Smith, Fairfield, OH (US); Pierre Daniel Verstraete, Woluwe Saint Lambert (BE); and Valerie Wong, Mason, OH (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Oct. 14, 2021, as Appl. No. 17/500,984.
Claims priority of provisional application 63/092,592, filed on Oct. 16, 2020.
Prior Publication US 2022/0118287 A1, Apr. 21, 2022
Int. Cl. A61Q 15/00 (2006.01); A61K 8/02 (2006.01); A61K 8/06 (2006.01); A61K 8/25 (2006.01); A61K 8/26 (2006.01); A61K 8/34 (2006.01); A61K 8/58 (2006.01)
CPC A61Q 15/00 (2013.01) [A61K 8/0233 (2013.01); A61K 8/06 (2013.01); A61K 8/25 (2013.01); A61K 8/26 (2013.01); A61K 8/34 (2013.01); A61K 8/585 (2013.01); A61K 2800/34 (2013.01); A61K 2800/412 (2013.01); A61K 2800/413 (2013.01); A61K 2800/56 (2013.01); A61K 2800/805 (2013.01)] 20 Claims
OG exemplary drawing
 
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 (MvOzYn)w,
wherein Formula (II) is (MvOzYnR1p)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, —OR2, halogen,

OG Complex Work Unit Chemistry
—NH2, —NHR2, —N(R2)2, and

OG Complex Work Unit Chemistry
wherein R2 is a C1 to C20 alkyl, C1 to C20 alkylene, C6 to C22 aryl, or a 5-12 membered heteroaryl, wherein the heteroaryl comprises from 1 to 3 ring heteroatoms selected from O, N, and S,
wherein R3 is a H, C1 to C20 alkyl, C1 to C20 alkylene, C6 to C22 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 R1 is independently selected from the group consisting of: a C1 to C30 alkyl; a C1 to C30 alkylene; a C1 to C30 alkyl substituted with a member selected from the group consisting of a halogen, —OCF3, —NO2, —CN, —NC, —OH, —OCN, —NCO, alkoxy, epoxy, amino, mercapto, acryloyl, —CO2H, —C(O)-alkyl, —C(O)O-aryl, and —C(O)O-heteroaryl; and a C1 to C30 alkylene substituted with a member selected from the group consisting of a halogen, —OCF3, —NO2, —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(R1)+8],
 wherein Mw(R1) is the molecular weight of the R1 group.