Polyurea Capsules Patented by IFF

These polyurea microcapsule compositions include  a first microcapsule and a second microcapsule.

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By: TOM BRANNA

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US 12,274,771 B2. Yabin Lei, Union Beach, NJ; Lewis Michael Popplewell, Union Beach, NJ; Li Xu, Union Beach, NJ; John Brahms, Union Beach, NJ and Xiang Fei, Union Beach, NJ. Assignee: International Flavors & Fragrances, New York, NY. These polyurea microcapsule compositions include  a first microcapsule and a second microcapsule, wherein the: • first microcapsule has a zeta potential of 10 mV or greater; • second microcapsule has a zeta potential of −10 mV or less; • first microc...

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