摘要:
A multi-layer dressing and controlled-release composition for topical application to a substrate include an emulsion and an active agent incorporated into the emulsion. The active agent includes a protein. A method of delivering the active agent to the substrate provides the emulsion and incorporates the active agent into the emulsion for delivery of the active agent to the substrate.
摘要:
Cosmetic compositions comprising bi-modal water continuous emulsions are disclosed. In particular, the cosmetic compositions comprise a bi-modal water continuous emulsion (E) comprising at least 70 weight percent of: a first dispersed phase containing a hydrophobic oil, wherein the hydrophobic oil is provided as a non-emulsified hydrophobic oil, and a second dispersed phase containing a silicone, wherein the silicone is provided from a water continuous silicone emulsion containing at least one surfactant. The cosmetic compositions further comprise at least one cosmetic ingredient (C). Optionally, the cosmetic ingredient (C) is in a cosmetically acceptable medium. Preparation methods and uses of the cosmetic compositions are also disclosed.
摘要:
Provided in various embodiments are methods of loading solid microparticles and nanoparticles of silver, including silver-based compounds, on silicone particles to surface modify the silicone particles. The silver-loaded microparticles and silver-loaded nanoparticles can be dispersed or loaded into silicones for use in antimicrobial and other applications.
摘要:
The present disclosure relates to compositions comprising: i) an aqueous silicone emulsion comprising; A) 0.5 wt % to 95 wt % of a silicone gum, resin, or PSA, B) 0.1 to 90 wt % of an ethylene oxide/propylene oxide block copolymer, and sufficient amount of water to sum all ingredients of the silicone gum emulsion to 100 weight percent, ii) a healthcare active, and iii) an optional enhancer(s).
摘要:
A process for preparing emulsions of silicone gums is disclosed based on using an ethylene oxide/propylene oxide block copolymer as the emulsifier. The emulsions produced by the present process are useful as coatings additives for both water-based and oil-based coatings to obtain improved slip and anti-mar properties. The emulsions may also be used in the manufacture of tires as band ply lubricants. They may also be used in personal care applications.
摘要:
A method and apparatus for making silicone-in-water emulsions comprising high viscosity silicone polymers is provided. In various aspects, polyorganosiloxanes are polymerized into high viscosity silicone polymers then emulsified in a continuous process, wherein the process is carried out using a single apparatus. In some aspects, the provided apparatus is an extruder for polymerizing polyorganosiloxanes into high viscosity silicone polymers and then emulsifying such polymers.
摘要:
Compositions useful for providing water repellent characteristics to substrates contain (i) 0. 1-99 percent by weight of a methylhydrogensiloxane; (ii) 0. 1-99 percent by weight of a silanol endblocked siloxane; (iii) 0. 1 -99 percent by weight of a silicone resin; (iv) 0. 1 -10 percent by weight of at least one surface active agent; and (v) 0.01-5 percent by weight of at least one additive selected from the group consisting of a preservative, an antifoam, a mildewcide, a UV absorber/UV light stabilizer, and a freeze-thaw additive. The balance of the composition to 100 percent by weight is water.
摘要:
A storage-stable composition is disclosed which is adapted for imparting water-repellent properties to masonry materials. Said composition comprises an aqueous emulsion which has a continuous aqueous phase and a discontinuous organosilicon phase. The emulsion is formulated from components comprising: (A) a water-insoluble alkoxysilane of the average general formula Rn-Si-R'(4-n) wherein n is a number from 1 to 2, R is a C5 - C20 monovalent hydrocarbon radical and R' is a C1 - C4 alkoxy group; (B) a hydrogen-functional polysiloxane having at least two silicon-bonded hydrogen atoms per molecule, at least five siloxy units per molecule and a kinematic viscosity between 0.5 x 10-6 and 1,000 x 10-6m2/sec. at 25 °C; (C) an emulsifier; and (D) water. The discontinuous organosilicon phase comprises components (A and B) and the continuous aqueous phase is water. Components (A and B) are present in the organosilicon phase in a weight ratio of (A):(B) such that said emulsion is physically and chemically stable after storage for six months at room temperature, or for six weeks at 50 °C.
摘要:
Cosmetic compositions comprising bi-modal water continuous emulsions are disclosed. In particular, the cosmetic compositions comprise a bi-modal water continuous emulsion (E) comprising at least 70 weight percent of: a first dispersed phase containing a hydrophobic oil, wherein the hydrophobic oil is provided as a non-emulsified hydrophobic oil, and a second dispersed phase containing a silicone, wherein the silicone is provided from a water continuous silicone emulsion containing at least one surfactant. The cosmetic compositions further comprise at least one cosmetic ingredient (C). Optionally, the cosmetic ingredient (C) is in a cosmetically acceptable medium. Preparation methods and uses of the cosmetic compositions are also disclosed.