Abstract: A population of core/shell delivery particles, where the shell is made, at least in part, of a polymeric material that is the reaction product of a plant-based flour material crosslinking an isocyanate monomer, oligomer, or prepolymer. Related methods of making and using such compositions are described.

Abstract: Populations of benefit agent delivery particles are disclosed, the particles having a core and a shell encapsulating the core, the shell comprising certain multifunctional (meth)acrylate-based polymers, along with processes for making and uses of such compositions. The delivery particle has a core to polymer wall ratio by weight from about 96:4 to about 99.5 to 0.5 and a volume-weighted particle size from about 30 to about 50 microns. The compositions deliver core content with a desired delivery profile, such as fragrance delivery at desired touchpoints with higher efficiency. The delivery particle has high pay load, yet exhibits decreased benefit agent leakage, and provides a desired delivery profile.

Abstract: The invention describes a core shell microcapsule wherein the capsule shell is an interfacial copolymer formed of a modified polysaccharide free radical cross-linked with a multifunctional (meth)acrylate. The polysaccharide is hydrophobically modified with an adduct containing at least one unsaturated bond. The modification imparts hydrophobic character to the polysaccharide to act as an emulsifier, driving the modified polysaccharide to an oil-water interface of an encapsulation emulsion described, and creates an active bonding site for free-radical polymerization between the polysaccharide and multifunctional (meth)acrylate, thereby forming a microcapsule shell surrounding the core material.

Abstract: The invention describes a core shell microcapsule wherein the capsule shell is an interfacial copolymer formed of a modified polysaccharide free radical cross-linked with a multifunctional (meth)acrylate. The polysaccharide is hydrophobically modified with an adduct containing at least one unsaturated bond. The modification imparts hydrophobic character to the polysaccharide to act as an emulsifier, driving the modified polysaccharide to an oil-water interface of an encapsulation emulsion described, and creates an active bonding site for free-radical polymerization between the polysaccharide and multifunctional (meth)acrylate, thereby forming a microcapsule shell surrounding the core material.

Abstract: Compositions comprising a population of delivery particles comprising a core and a polymer wall surrounding the core are disclosed. The delivery particles are obtainable by a process comprising the steps of providing core materials and wall-forming materials, and encapsulating the core materials in the polymer wall. The wall-forming materials comprise structural monomers and a free radical initiating agent. The core materials comprise a benefit agent and a shielding agent. The benefit agent comprises aldehyde-containing benefit agents, ketone-containing benefit agents, or a combination thereof. The shielding agent is capable of complexing with the aldehyde-containing benefit agents, ketone-containing benefit agents, or a combination thereof. The population of core/shell delivery particles formed has a weight ratio of the core materials and the wall polymer of at least 95:5. Related articles, methods of making and using such compositions and articles are also disclosed.

Abstract: An improved delivery particle comprising a benefit agent core material and a shell encapsulating the core material is described, along with a process for forming such a delivery particle and articles of manufacture. The shell is the reaction product of an ATEC (amine-thiol ene) conjugate, which can be further reacted with one or more multifunctional (meth)acrylates or isocyanates, or both.

Abstract: A biodegradable delivery particle having a benefit agent containing core and a shell.

Abstract: A composition that comprises encapsulates, the encapsulates having a core that includes perfume characterized by an acid value of greater than 5.0 mg KOH/g of perfume, the encapsulates also including a shell that includes a (meth)acrylate material. Methods of making and using such compositions.

Abstract: Populations of benefit agent delivery particles are disclosed, the particles having a core and a polymer wall surrounding the core, the polymer wall comprising multifunctional (meth)acrylate-based polymers, along with processes for making and uses of such compositions, and articles made with such particles. The polymer wall comprises a (meth)acrylate polymer derived, at least in part, from wall monomers and at least one free radical initiator, wherein the wall monomers comprise at least 50%, by weight of the wall monomers, of (meth)acrylate monomers, wherein the at least one free radical initiator is present at a level of from about 15% to about 60%, by weight of the polymer wall, wherein the core comprises a benefit agent, wherein the core and the polymer wall are present in a weight ratio of from about 95:5 to about 99.5:0.5. The compositions deliver core content with a desired delivery profile.

Abstract: Controlled release biodegrading microcapsules comprising polypeptide chains.

Abstract: Microcapsules encapsulating oily core materials have a shell material of hybrid polyurea and poly(beta-amino esters) (PU/PBAE). The microcapsules may have a single shell of hybrid PU/PBAE, dual shells including hybrid PU/PBAE in an inner shell and PBAE in an outer shell crosslinked and deposited to the inner shell, or multiple shells including PU in an inner shell, hybrid PU/PBAE in a transitioning shell, and PBAE in an outer shell. Formation of the microcapsules includes polymerization between multifunctional amine and multifunctional acrylate to produce a water soluble PBAE; polymerization between polyisocyanate in oil phase and multifunctional amine in aqueous solution to produce PU microcapsule, polymerization between polyisocyanate and the amine moiety of PBAE prepolymer to produce hybrid PU/PBAE microcapsule wall; and polymerization between multifunctional acrylate and primary or secondary amine moiety of the PBAE prepolymer to form a PBAE outer shell.

Abstract: The present invention teaches a composition and process for irreversibly agglomerated charge stable core shell microcapsules, each microcapsule containing a benefit agent core material, which may be the same or different, the polymeric all or walls comprising one or more (meth)acrylate polymers, or optionally combinations with other polymers, along with a polyvalent cation. The capsules of the invention adhere better to surfaces, are more stable and are useful for delivery of benefit agents.

Abstract: An aqueous slurry composition containing microcapsules dispersed in an aqueous medium. The microcapsules contain an ionic acrylate copolymer shell encapsulating an oily medium. Upon drying, the microcapsules release the oily medium. The slurry is useful in delivering a variety of water-insoluble substances via an aqueous medium including cosmetic or agricultural agents.

Abstract: A biodegradable delivery particle having a benefit agent containing core and a shell.

Abstract: A biodegradable delivery particle having a benefit agent containing core and a shell.

Abstract: An improved process of forming polyurea and chitosan microcapsules encapsulating a benefit agent is described. The process comprises forming a water phase comprising hydrolyzing chitosan in an acidic medium at a pH of 6.5 or less for an extended period and combining with a polyisocyanate. The reaction product of the hydrolyzed chitosan and polyisocyanate yields a microcapsule having improved release characteristics, with enhanced degradation characteristics in OECD test method 301B.

Abstract: Core shell microcapsules are provided wherein the capsule shell is an interfacial copolymer formed of a gelatin and an isocyanate.

Abstract: An article of manufacture is described comprising the combination of an adjunct material and a delivery particle. The delivery particle comprising a benefit agent core material and a shell encapsulating the core material is described, along with a process for forming such a delivery particle and articles of manufacture. The shell is the reaction product of: i) an isocyanate or acid chloride or acrylate with ii) an amine-containing natural material having free amino moieties, and iii) an ?, ?-unsaturated compound, the ?, ?-unsaturated compound forming C—N covalent bonds with the amine moieties of the natural material. The delivery particle of the invention has improved release characteristics, with enhanced degradation characteristics in OECD test method 301B.

Abstract: An improved delivery particle comprising a benefit agent core material and a shell encapsulating the core material is described, along with a process for forming such a delivery particle and articles of manufacture. The shell is the reaction product of: i) an isocyanate or acid chloride or acrylate with ii) an amine-containing natural material having free amino moieties, and iii) an a, ? -unsaturated compound, the a, ? -unsaturated compound forming C-N covalent bonds with the amine moieties of the natural material. The delivery particle of the invention has improved release characteristics, with enhanced degradation characteristics in OECD test method 301B.

Abstract: Controlled release biodegrading microcapsules comprising polypeptide chains.