In embodiments where the deposition protein is a protein-silanol copolymer, a protein-silane copolymer, a protein-siloxane copolymer, or a combination thereof, the microcapsules are coated at a temperature between 35 to 75° C. In other embodiments, the microcapsules are coated with a second deposition aid. before, during or after curing the microcapsules. In some embodiments, the microcapsules are coated with the deposition protein at a temperature between 0 to 250° C. The method involves the steps of (a) providing a microcapsule slurry having a plurality of microcapsules each containing a polymeric wall and an active material encapsulated within the polymeric wall and (b) curing the microcapsules and coating each of the microcapsules with a deposition protein. In further embodiments, the microcapsule composition includes a second deposition aid.Ī method for preparing the microcapsule composition of the invention is also provided. In other embodiments, the polymeric wall is composed of polyacrylate, polyurea, polyurethane, polyacrylamide, poly(acrylate-co-acrylamide), starch, silica, gelatin and gum Arabic, poly(melamine-formaldehyde), poly(urea-formaldehyde), or a combination thereof.
Chimex turmeric skin#
In some embodiments, the active material of the microcapsule composition can include a fragrance, pro-fragrance, flavor, malodor counteractive agent, anti-inflammatory agent, anesthetic, analgesic, anti-viral agent, anti-infectious agent, anti-acne agent, skin lightening agent, insect repellant, emollient, skin moisturizing agent, vitamin or derivative thereof, nanometer to micron size inorganic solid, polymeric or elastomeric particle, or combination thereof. Deposition proteins of the microcapsule composition can include a modified vegetable protein, wheat protein, marine collagen protein, keratin protein, silk protein, or milk protein, wherein the deposition protein has a molecular weight in the range of 1000 to 500,000. Wherein R is a protein residue R 1 is a protein cross-linker group R 2 and R 3 are each independently hydrogen, hydroxyl, halo, C 1-C 6 alkyl, or C 1-C 6 alkoxy and n is 1 to 100. In certain embodiments, the deposition protein has the structure of Formula I or Formula II: In some embodiments, the deposition protein is a cationically modified protein (e.g., a protein-acrylate copolymer comprising at least one nitrogen-containing acrylic moiety such as a tertiary or quaternary amine group), a protein-silanol copolymer, a protein-silane, a protein-siloxane copolymer, or a combination thereof. The present invention provides a microcapsule composition composed of a plurality of microcapsules each containing a polymeric wall and an active material encapsulated within the polymeric wall, wherein the polymeric wall is coated with a deposition protein. WO 2012/001604 describes a coacervated capsule having a core composed of a mixture of a fatty component and a flavor or fragrance material encapsulated within a coating layer composed essentially of a protein, and optionally a non-protein polymer. WO 2011/056904 provides an encapsulate containing a core, a shell having an inner and outer surface and a coating, wherein the coating is on the outer surface of the shell and is composed of a cationic polymer, e.g., a protein, and an anionic polymer, e.g., a protein.
Chimex turmeric free#
WO 2009/080401 discloses capsules composed of a shell and a carrier oil core, wherein the shell is permeable to free perfume and is composed of an aminoplast, protein, polyurethane, polysaccharide, gum or polymethylmethacrylate. WO 2008/142637 describes a coacervated capsule, wherein the core is composed of a hydrophobic material, and the shell is composed of a protein such as an albumin, vegetable globulin or gelatine, and optionally a non-protein polymer. Therefore, there is a need in the art for microcapsule compositions with improved deposition characteristics suitable for rinse-off consumer product applications. The challenge however is when the intended use of the product is to clean and rinse particles, oils and dirt, as is the case with shampoos, detergents, body wash and hair conditioners. Fragrance microcapsules are efficient delivery systems that can provide lasting release of fragrance in variety of applications.
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