US 11,849,756 B2
Hydrophobic capsule
Aurélien Guyard, Orbe (CH); Laurent Lavanant, Evian-les Bains (FR); and Yves Jordil, Lausanne (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Filed by PHILIP MORRIS PRODUCTS S.A., Neuchâtel (CH)
Filed on Jul. 6, 2021, as Appl. No. 17/368,578.
Application 17/368,578 is a division of application No. 16/307,867, granted, now 11,064,730, issued on Jul. 20, 2021, previously published as PCT/IB2017/053871, filed on Jun. 28, 2017.
Claims priority of provisional application 62/360,923, filed on Jul. 11, 2016.
Prior Publication US 2021/0337860 A1, Nov. 4, 2021
Int. Cl. A24D 3/06 (2006.01); A24D 3/14 (2006.01); A24F 7/04 (2006.01); A24D 1/20 (2020.01); A24D 3/17 (2020.01)
CPC A24D 3/061 (2013.01) [A24D 1/20 (2020.01); A24D 3/14 (2013.01); A24D 3/17 (2020.01); A24F 7/04 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A capsule for use in a smoking article, the capsule comprising:
a liquid sensory enhancing material; and
a shell surrounding the liquid sensory enhancing material, the shell having an outer surface rendered hydrophobic by hydrophobic groups covalently bonded to the outer surface of the shell.