Patent · US Active

Encapsulation method

US11162056B2 · kind B2 · utility

1Cited by
2References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 10, 2018
Grant dateNov 2, 2021
Priority date—
Expiry dateJul 10, 2038

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC11D17/0039
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A method of encapsulating an active comprising preparing a first mixture comprising the active, a compound that functions as a Michael donor, and a compound that functions as a Michael acceptor, preparing a second mixture comprising water and an emulsifier; preparing a reaction mixture by combining the first mixture, the second mixture, and a compound that functions as a Michael catalyst; agitating the reaction mixture; wherein the active has a water solubility of at most 0.5% (w/w) at 25° C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.