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    • 4. 发明授权
    • Emulsification systems and emulsions
    • 乳化系统和乳液
    • US06831107B2
    • 2004-12-14
    • US09865296
    • 2001-05-29
    • Christian Joseph DederenThierry WetzelGuido Serrien
    • Christian Joseph DederenThierry WetzelGuido Serrien
    • A01N2504
    • A61K8/60A61K8/062A61K8/066A61K8/73A61Q1/02A61Q19/00B01F17/0021B01F17/0028B01F17/0042B01F17/0085B01F17/0092C08J3/03C08J2391/00Y10S514/939Y10S514/941
    • Personal care or cosmetic oil in water emulsions include an oil emulsifier and a combination of a Xanthan polysaccharide and a polyglucomannan polysaccharide to provide enhanced stability even at low emulsifier stabiliser levels. The emulsifier stabiliser system provides stable emulsions without dominating system rheology, particularly viscosity. Thus, the emulsions can have a low viscosity suitable for formulation as milks or thin lotions, or can be thickened, desirably by thickening agents other than the Xanthan and/or polyglucomannan, to provide emulsion creams or gels. This enables the system to be used very flexibly in end use applications. The emulsifier is desirably a non-ionic emulsifier and particularly is a combination of a low HLB and a high HLB emulsifier and can be formulated with conventional alcohol ethoxylate surfactants or from non-EO surfactants e.g. sucrose ester high HLB surfactants and citrate or sorbitan ester low HLB surfactants.
    • 个人护理或化妆品水包油乳剂包括油乳化剂和黄原胶多糖和聚葡甘聚糖多糖的组合,即使在低乳化剂稳定剂水平下也能提供更高的稳定性。 乳化剂稳定剂系统提供稳定的乳液,而不主导系统流变性,特别是粘度。 因此,乳液可以具有适合于配方乳液或薄洗剂的低粘度,或者可以通过除了黄原胶和/或聚葡甘露聚糖之外的增稠剂来增稠,以提供乳液乳膏或凝胶。 这使得系统能够在最终用途应用中非常灵活地使用。 乳化剂理想地是非离子乳化剂,特别是低HLB和高HLB乳化剂的组合,并且可以与常规醇乙氧基化物表面活性剂或非EO表面活性剂配制。 蔗糖酯高HLB表面活性剂和柠檬酸盐或脱水山梨醇酯低HLB表面活性剂。
    • 5. 发明授权
    • Method of preparing small particle dispersions
    • 制备小颗粒分散体的方法
    • US5800866A
    • 1998-09-01
    • US758749
    • 1996-12-06
    • David Lewis MyersLeonid Anthony Turkevich
    • David Lewis MyersLeonid Anthony Turkevich
    • C08J3/205C08J3/22B05D7/00B05D1/38B05D3/12
    • C08J3/2056C08J3/226C08J2391/00C08J2491/00
    • A method of preparing a dispersion of small particles in a polymeric precursor, which method involves providing a mixture of a particulate material and a surfactant in a nonaqueous solvent, forming a dispersion of the particulate material in the nonaqueous solvent, combining the resulting dispersion of particulate material in the nonaqueous solvent with a precursor material, and heating the combination of the dispersion of particulate material and the precursor material, with mixing, to a temperature sufficient to volatilize the nonaqueous solvent. The surfactant is soluble in the nonaqueous solvent and is adapted to stabilize the particulate material against agglomeration. The nonaqueous solvent swells the polymeric precursor near the boiling point of the nonaqueous solvent. The boiling point of the nonaqueous solvent is greater than a temperature at which the polymeric precursor may be mixed and below a temperature at which the polymeric precursor polymerizes or decomposes. In certain embodiments, the particulate material is an inorganic material. For example, the inorganic material may be a ferroelectric material, such as barium titanate and lead titanate. In other embodiments, the particulate material is a ferromagnetic material, such as magnetite and barium ferrite.
    • 一种在聚合物前体中制备小颗粒分散体的方法,该方法包括在非水溶剂中提供颗粒材料和表面活性剂的混合物,在非水溶剂中形成颗粒材料的分散体,将得到的颗粒分散体 在具有前体材料的非水溶剂中的材料,并将颗粒材料和前体材料的分散体的组合加热至足以挥发非水溶剂的温度。 表面活性剂可溶于非水溶剂中,适于稳定颗粒材料以防止团聚。 非水溶剂使聚合物前体在非水溶剂的沸点附近溶胀。 非水溶剂的沸点大于聚合物前体可以混合的温度,并且低于聚合物前体聚合或分解的温度。 在某些实施方案中,颗粒材料是无机材料。 例如,无机材料可以是铁电材料,例如钛酸钡和钛酸铅。 在其他实施例中,颗粒材料是铁磁材料,例如磁铁矿和钡铁氧体。