US 12,458,942 B2
Capsules
Steven Daryl Smith, Fairfield, OH (US); Valerie Wong, Mason, OH (US); Roland Vanderstraeten, Brussels (BE); Andre Martim Barros, Woluwe Saint Etienne (BE); Mariana B T Cardoso, Ixelles (BE); and Pierre Daniel Verstraete, Lambert (BE)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Oct. 11, 2021, as Appl. No. 17/498,016.
Claims priority of provisional application 63/092,618, filed on Oct. 16, 2020.
Prior Publication US 2022/0118417 A1, Apr. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 13/16 (2006.01); A61K 8/11 (2006.01); A61Q 13/00 (2006.01)
CPC B01J 13/16 (2013.01) [A61K 8/11 (2013.01); A61Q 13/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A population of capsules, the capsules comprising:
an oil-based core comprising a benefit agent; and
a substantially inorganic shell surrounding the core, the shell comprising:
a first shell component comprising:
a condensed layer comprising a condensation product of a precursor, and
wherein the precursor comprises at least one compound of Formula (I)
(MvOzYn)w  (Formula I)
where M is one or more 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, halo,

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 comprising from 1 to 3 ring heteroatoms selected from O, N, and S,
R3 is a H, C1 to C20 alkyl, C1 to C20 alkylene, C6 to C22 aryl, or a 5-12 membered heteroaryl comprising from 1 to 3 ring heteroatoms selected from O, N, and S,
n is from 0.7 to (v-1), and
w is from 2 to 2000;
wherein the substantially inorganic shell comprises up to 1% organic content; and
wherein the shell comprises an organic emulsifier.