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    • 32. 发明申请
    • Saponified Fatty Acids as Viscosity Modifiers for Viscoelastic Surfactant-Gelled Fluids
    • 皂化脂肪酸作为粘弹性表面活性剂胶凝液的粘度改性剂
    • US20080108526A1
    • 2008-05-08
    • US11931832
    • 2007-10-31
    • James Crews
    • James Crews
    • C09K8/86
    • C09K8/506C09K8/518C09K8/52C09K8/602C09K8/68C09K8/70C09K8/86C09K8/94C09K2208/26C09K2208/30Y10S516/90
    • Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities affected (increased or reduced) by the indirect or direct action of a composition that contains at least one fatty acid that has been affected, modified or reacted with an alkali metal halide salt, an alkaline earth metal halide salt, and/or an ammonium salt and a water soluble base. The composition containing the resulting saponification product is believed to either act as a co-surfactant with the VES itself to increase viscosity and/or possibly by disaggregating or otherwise affecting the micellar structure of the VES-gelled fluid. In a non-limiting instance, a brine fluid gelled with an amine oxide surfactant has its viscosity broken with a composition containing naturally-occurring fatty acids in canola oil reacted with a water soluble base such as NaOH, KOH, NH4OH, and the like with an alkali halide salt such as CaCl2, MgCl2, NaCl, NH4Cl and the like.
    • 用粘弹性表面活性剂(VES)粘稠的流体可能通过含有至少一种已经与碱金属卤化物盐影响,改性或反应的脂肪酸的组合物的间接或直接作用而影响(增加或减少)粘度, 碱土金属卤化物盐和/或铵盐和水溶性碱。 据信含有所得皂化产物的组合物可以作为与VES本身的助表面活性剂以增加粘度和/或可能通过解聚或以其它方式影响VES凝胶化流体的胶束结构。 在非限制性的情况下,用氧化胺表面活性剂凝胶化的盐水溶液的粘度由含有天然存在的脂肪酸的组合物破坏,其中卡诺拉油与水溶性碱例如NaOH,KOH,NH 4, OH等与碱金属卤化物盐如CaCl 2,MgCl 2,NaCl,NH 4 Cl等进行反应, 。
    • 36. 发明授权
    • Stable multiple X/O/Y-emulsion
    • 稳定的多个X / O / Y-乳液
    • US06171600B2
    • 2001-01-09
    • US08652531
    • 1997-05-23
    • Gerd H. Dahms
    • Gerd H. Dahms
    • A61K9113
    • C11D17/0026A61K9/113B01F17/00C11D3/43Y10S514/943Y10S514/944Y10S516/90Y10S516/928
    • The stable multiple emulsion of the X/O/Y type contains at least one X/O phase in which X is an oil-immiscible component and O an oil phase. The X/O phase can contains an active substance, possibly in solid form, for example for medical, cosmetic or technical applications. The Y phase can be an aqueous phase, an aqueous liquid, preferably liquid-crystalline, gel or a W/O/W emulsion and serves as carrier for the at least one X/O phase. The X/O phase is produced using an emulsifier that has an HLB value equal to or less than 6 and/or is a W/O emulsifier. The preparation of the X/O phase itself and its diffusion in the Y phase are done with standard stirring tools. The drops of the X/O phase have long-term stability and, even when greatly diluted, do not interact with the Y phase or the drops or other X/O phases dispersed therein.
    • X / O / Y型稳定的多重乳液含有至少一个X / O相,其中X是油不混溶组分,O是油相。 X / O相可以包含活性物质,可能是固体形式,例如用于医疗,化妆品或技术应用。 Y相可以是水相,水性液体,优选液晶,凝胶或W / O / W乳液,并用作至少一个X / O相的载体。 使用HLB值等于或小于6的乳化剂和/或是W / O乳化剂来生产X / O相。 X / O相本身的制备及其在Y相中的扩散用标准搅拌工具进行。 X / O相的液滴具有长期的稳定性,即使大大稀释,也不会与分散在其中的Y相或液滴或其它X / O相相互作用。