US 12,274,771 B2
Polyurea capsule compositions
Yabin Lei, Union Beach, NJ (US); Lewis Michael Popplewell, Union Beach, NJ (US); Li Xu, Union Beach, NJ (US); John Brahms, Union Beach, NJ (US); and Xiang Fei, Union Beach, NJ (US)
Assigned to INTERNATIONAL FLAVORS & FRAGRANCES INC., New York, NY (US)
Filed by International Flavors & Fragrances Inc., New York, NY (US)
Filed on Feb. 3, 2020, as Appl. No. 16/780,158.
Application 16/780,158 is a continuation of application No. 16/045,179, filed on Jul. 25, 2018, granted, now 10,555,879.
Application 16/045,179 is a continuation of application No. 15/047,364, filed on Feb. 18, 2016, granted, now 10,085,925, issued on Oct. 2, 2018.
Application 15/047,364 is a continuation in part of application No. 14/911,433, granted, now 10,092,486, issued on Oct. 9, 2018, previously published as PCT/US2014/051309, filed on Aug. 15, 2014.
Application 14/911,433 is a continuation in part of application No. 13/968,862, filed on Aug. 16, 2013, granted, now 10,226,405, issued on Mar. 12, 2019.
Application 14/911,433 is a continuation in part of application No. 13/969,038, filed on Aug. 16, 2013, granted, now 9,687,424, issued on Jun. 27, 2017.
Application 14/911,433 is a continuation in part of application No. 13/967,800, filed on Aug. 15, 2013.
Claims priority of provisional application 62/272,740, filed on Dec. 30, 2015.
Prior Publication US 2020/0170895 A1, Jun. 4, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/11 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61K 8/84 (2006.01); A61K 8/87 (2006.01); A61K 8/92 (2006.01); A61Q 5/12 (2006.01); A61Q 13/00 (2006.01); A61Q 19/00 (2006.01); C11D 3/50 (2006.01); C11D 17/00 (2006.01)
CPC A61K 8/11 (2013.01) [A61K 8/731 (2013.01); A61K 8/8111 (2013.01); A61K 8/8117 (2013.01); A61K 8/84 (2013.01); A61K 8/87 (2013.01); A61K 8/922 (2013.01); A61Q 19/00 (2013.01); C11D 3/505 (2013.01); C11D 17/0039 (2013.01); A61K 2800/10 (2013.01); A61K 2800/412 (2013.01); A61Q 5/12 (2013.01); A61Q 13/00 (2013.01)] 13 Claims
 
1. A microcapsule composition comprising a first microcapsule and a second microcapsule, wherein
the first microcapsule has a zeta potential of 10 mV or greater,
the second microcapsule has a zeta potential of −10 mV or less,
the first microcapsule has a first oil core containing a first active material, and a first microcapsule wall encapsulating the first oil core,
the second microcapsule has a second oil core containing a second active material, and a second microcapsule wall encapsulating the second oil core, and
the first microcapsule wall or the second microcapsule wall comprises a polyfunctional amine selected from the group consisting of a protein and chitosan.