Back to results
US 12,624,308 B2Granted
Biodegradable delivery particles
AssigneeEncapsys, LLC
InventorsSusana Fernández Prieto, Valerie Francine Hans Eykens, Rita Del Pezzo, Johan Smets, Linsheng Feng, Fadi Selim Chakar, Travis Ian Bardsley, Robert Stanley Bobnock
Life of this patent
Estimating the term…
Abstract
A biodegradable delivery particle having a benefit agent containing core and a shell.
Claims28
A delivery particle comprising a core and a wall encapsulating said core, wherein:
- the core comprises a benefit agent and a partitioning modifier;
- the wall is formed by a radical polymerization reaction between:
- a) a water soluble hydroxyl containing linear carbon-chain polymer comprising 1,2-diol and/or 1,3-diol functionality;
- b) a multifunctional (meth)acrylate monomer and/or oligomer;
- c) optionally, a mono- and/or di-functional monomer and/or oligomer;
- d) at least one water soluble thermal free radical initiator;
- e) at least one oil soluble thermal free radical initiator;
- wherein at least one of the water-soluble initiators is a persulfate and the water soluble hydroxyl containing linear carbon-chain polymer forms carbon/carbon and/or oxygen/carbon bonds with the multifunctional (meth)acrylate monomer and/or oligomer.
5 more elements
Dependencies are inferred from the claim text.