公开(公告)号：US20240336880A1

公开(公告)日：2024-10-10

申请号：US18724124

申请日：2023-01-12

申请人： INTERNATIONAL FLAVORS & FRAGRANCES INC.

发明人： Takashi SASAKI ,  Jason HACKENBERG ,  Ryan CHIN ,  Lewis Michael POPPLEWELL ,  Ronald GABBARD ,  Yabin LEI ,  Sorin Nicolae SAUCA ,  Timothy YOUNG ,  Tram TRAN ,  Helen LU ,  Min ZHAO ,  Julie Ann WIELAND

IPC分类号： C11D3/50 ,  B01J13/16 ,  C11D3/00 ,  C11D3/37 ,  C11D11/00 ,  C11D17/00

CPC分类号： C11D3/505 ,  B01J13/16 ,  C11D3/0015 ,  C11D3/3726 ,  C11D11/0082 ,  C11D17/0039

摘要： This disclosure relates to a biodegradable core-shell microcapsule that includes (a) a shell containing the reaction product of an isocyanate-functionalized prepolymer with a crosslinker and optionally a polyelectrolyte under an aqueous condition, and (b) a core containing an active material, wherein the isocyanate-functionalized prepolymer is the reaction product of a polyisocyanate with a biopolymer and/or an amphiphilic compound under an anhydrous condition, and the microcapsule shell is substantially free of or free of a self-condensed polyisocyanate. This disclosure also relates to a process of preparing such biodegradable core-shell microcapsule. This disclosure also relates to a consumer product containing such biodegradable core-shell microcapsule. This disclosure also relates to a process of making the isocyanate-functionalized prepolymer.