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    • 7. 发明申请
    • Reversibly Switchable Surfactants and Methods of Use Thereof
    • 可逆切换表面活性剂及其使用方法
    • US20130087072A1
    • 2013-04-11
    • US13616900
    • 2012-09-14
    • Philip G. Jessop
    • Philip G. Jessop
    • C08K5/29
    • C08K5/29B01D17/047B01D21/01B01F17/0042B03D1/01C07B63/02C07C257/14C08F2/24Y02W10/37
    • Reversible switchable surfactants are provided. A surfactant is the salt of an amidine or guanidine having at least one R group that is a hydrophobic moiety selected from the group consisting of higher aliphatic moiety, higher siloxyl moiety, higher aliphatic/siloxyl moiety, aliphatic/aryl moiety, siloxyl/aryl moiety, and aliphatic/siloxyl/aryl moiety. The other R groups are smaller moieties such as H, C1 to C4 aliphatic or the like. The surfactant is turned on by a gas that liberates hydrogen ions, such as, for example, carbon dioxide, which liberates hydrogen ions in the presence of water. The surfactant is turned off by exposure to a flushing gas and/or heating. When “on” the surfactants are useful to stabilize emulsions, and when “off” they are useful to separate immiscible liquids or a liquid and a solid. The surfactants find uses in polymerization and in the oil industry.
    • 提供可逆切换表面活性剂。 表面活性剂是具有至少一个R基团的脒或胍的盐,所述R基团是选自高级脂族部分,高级甲硅烷氧基部分,高级脂族/甲硅烷氧基部分,脂族/芳基部分,硅氧烷/芳基部分 ,和脂族/硅氧基/芳基部分。 其它R基团是较小的部分,例如H,C 1至C 4脂族基等。 表面活性剂通过释放氢离子的气体导通,例如二氧化碳,二氧化碳在水存在下释放出氢离子。 通过暴露于冲洗气体和/或加热来关闭表面活性剂。 当表面活性剂可用于稳定乳液时,并且当它们脱离时它们可用于分离不混溶的液体或液体和固体。 表面活性剂用于聚合和石油工业。
    • 8. 发明授权
    • Reversibly switchable surfactants and methods of use thereof
    • 可逆切换的表面活性剂及其使用方法
    • US08283385B2
    • 2012-10-09
    • US11599623
    • 2006-11-15
    • Philip G. Jessop
    • Philip G. Jessop
    • B01F17/16B01F17/04B01F17/22B01F3/08C07B63/02B01D17/04B01D17/05C07C257/10C07C279/02C07D233/06C07D239/06C07F7/10C08F2/22C08F2/32
    • C08K5/29B01D17/047B01D21/01B01F17/0042B03D1/01C07B63/02C07C257/14C08F2/24Y02W10/37
    • Reversible switchable surfactants are provided. A surfactant is the salt of an amidine or guanidine: having at least one R group that is a hydrophobic moiety selected from the group consisting of higher aliphatic moiety, higher siloxyl moiety, higher aliphatic/siloxyl moiety, aliphatic/aryl moiety, siloxyl/aryl moiety, and aliphatic/siloxyl/aryl moiety. The other R groups are smaller moieties such as H, C1 to C4 aliphatic or the like. The surfactant is turned on by a gas that liberates hydrogen ions, such as, for example, carbon dioxide, which liberates hydrogen ions in the presence of water. The surfactant is turned off by exposure to a flushing gas and/or heating. When “on” the surfactants are useful to stabilize emulsions, and when “off” they are useful to separate immiscible liquids or a liquid and a solid. The surfactants find uses in polymerization and in the oil industry.
    • 提供可逆切换表面活性剂。 表面活性剂是脒或胍的盐:具有至少一个R基团,其是疏水部分,其选自高级脂族部分,高级甲硅烷氧基部分,高级脂族/硅氧烷基部分,脂族/芳基部分,硅氧烷/芳基 部分和脂肪族/酪醇酰/芳基部分。 其它R基团是较小的部分,例如H,C 1至C 4脂族基等。 表面活性剂通过释放氢离子的气体导通,例如二氧化碳,二氧化碳在水存在下释放出氢离子。 通过暴露于冲洗气体和/或加热来关闭表面活性剂。 当表面活性剂可用于稳定乳液时,并且当它们脱离时它们可用于分离不混溶的液体或液体和固体。 表面活性剂用于聚合和石油工业。
    • 10. 发明申请
    • Water with Switchable Ionic Strength
    • 水可切换离子强度
    • US20130105377A1
    • 2013-05-02
    • US13578290
    • 2011-02-10
    • Philip G. JessopSean M. MercerR. Stephen BrownTobias Robert
    • Philip G. JessopSean M. MercerR. Stephen BrownTobias Robert
    • C02F1/44
    • A method and system for reversibly converting water between an initial ionic strength and an increased ionic strength, using a switchable additive, is described. The disclosed method and system can be used, for example, in distillation-free removal of water from solvents, solutes, or solutions. Following extraction of a solute from a medium by dissolving it in water, the solute can then be isolated from the aqueous solution or “salted-out” by converting the water to a solution having an increased ionic strength. The solute then separates from the increased ionic strength solution as a separate phase. Once the solute is, for example, decanted off, the increased ionic strength aqueous solution can be converted back to water having its original ionic strength and reused. Switching from lower to higher ionic strength is readily achieved using low energy methods such as bubbling with CO2, CS2 or COS. Switching from higher to lower ionic strength is readily achieved using low energy methods such as bubbling with air, heating, agitating, introducing a vacuum or partial vacuum, or any combination or thereof.
    • 描述了使用可切换添加剂在初始离子强度和增加的离子强度之间可逆地转化水的方法和系统。 所公开的方法和系统可以用于例如从溶剂,溶质或溶液中蒸馏除去水。 在通过将溶解在水中从介质中提取溶质后,可以通过将水转化为具有增加的离子强度的溶液,从溶液中分离溶质或“盐析”。 然后,溶质作为分离相与增加的离子强度溶液分离。 例如,一旦溶质脱出,增加的离子强度水溶液可以转化回具有其原始离子强度的水并重复使用。 使用低能量方法(例如用CO 2,CS 2或COS起泡)容易地实现从低到高的离子强度的切换。使用低能量方法容易地实现从较高离子强度到较低离子强度的切换,例如用空气鼓泡,加热,搅拌,引入 真空或部分真空,或其任何组合。