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    Gas hydrate inhibitors
    1.
    发明申请
    Gas hydrate inhibitors 有权

    公开(公告)号：US20070032689A1

    公开(公告)日：2007-02-08

    申请号：US11544475

    申请日：2006-10-06

    申请人： Gordon Rivers ,  Daniel Crosby

    发明人： Gordon Rivers ,  Daniel Crosby

    IPC分类号： F17D1/00 ,  C07C9/00

    CPC分类号： C09K8/52 ,  C09K2208/22 ,  Y10S585/95 ,  Y10T137/0329 ,  Y10T137/0391

    摘要： A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule involves adding a reaction product to the mixtures in an effective amount to inhibit formation of the hydrocarbon hydrates under conditions otherwise effective to form the hydrocarbon hydrates in the absence of the reaction product. The product is made by the reaction of first reactant that is an amine or polyamine, or alcohol or polyalcohol, with a second, aldehyde reactant and a third reactant that is an alcohol or polyalcohol or, an amide or polyamide. Preferably, if the first and third reactants are both an alcohol or both a polyalcohol, they are not the same. A non-limiting example of a suitable amine would be a fatty alkyl amine, while formaldehyde would be a non-limiting of a suitable aldehyde and polyacrylamide would be a suitable third reactant.

    Process and composition for lower toxicity quaternary ammonium compounds
    2.
    发明申请
    Process and composition for lower toxicity quaternary ammonium compounds 有权
    低毒季铵化合物的工艺和组成

    公开(公告)号：US20050069515A1

    公开(公告)日：2005-03-31

    申请号：US10945121

    申请日：2004-09-20

    申请人： Gordon Rivers ,  Joann McMahon

    发明人： Gordon Rivers ,  Joann McMahon

    IPC分类号： C07C227/08 ,  C07C229/12 ,  A61K7/075 ,  A61K7/08 ,  C07C229/06

    CPC分类号： C07C229/12

    摘要： Betaine ester quaternary ammonium compounds with reduced toxicity and improved biodegradability are formed by esterification of a haloacetic acid with an alcohol containing at least 4 carbon atoms, followed by quaternization of the halo-acetate with a tertiary amine containing at least 4 carbon atoms. In one non-limiting embodiment the alkyl substituents on the nitrogen of the tertiary amine have at least 2 carbon atoms, and in another non-limiting embodiment are each n-butyl.

    摘要翻译： 通过卤代乙酸与含有至少4个碳原子的醇酯化，随后用含有至少4个碳原子的叔胺季铵化卤代乙酸酯，形成具有降低的毒性和改进的生物降解性的甜菜碱季铵化合物。 在一个非限制性实施方案中，叔胺的氮上的烷基取代基具有至少2个碳原子，在另一个非限制性实施方案中，每个是正丁基。

    Method and compositions for inhibiting formation of hydrocarbon hydrates
    5.
    发明申请
    Method and compositions for inhibiting formation of hydrocarbon hydrates 失效
    抑制烃水合物形成的方法和组合物

    公开(公告)号：US20060106265A1

    公开(公告)日：2006-05-18

    申请号：US10526298

    申请日：2003-09-03

    申请人： Gordon Rivers ,  Daniel Crosby

    发明人： Gordon Rivers ,  Daniel Crosby

    IPC分类号： C07C9/00

    CPC分类号： C10L3/10 ,  C09K8/52 ,  C09K2208/22

    摘要： A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule has been discovered that involves adding a composition to the mixtures in an amount that is effective in inhibiting formation of the hydrocarbon hydrates under conditions otherwise effective to form the hydrocarbon hydrates in the absence of the reaction product. The composition includes at least one dendrimeric compound having a number average molecular weight of at least 1,000 atomic mass units (amu); and at least one small molecular weight species having less than 1,000 amu, selected from the group consisting of polyalkyleneimine, polyallylamine, starch, sugars, and polymers or copolymers of vinyl alcohol or allyl alcohol; and, optionally, at least one surfactant.

    摘要翻译： 已经发现了一种用于在水和形成水合物的客体分子的混合物中抑制烃水合物的形成的方法，其涉及将组合物以有效阻碍烃形成水合物的有效成分 碳氢化合物在不存在反应产物的情况下。 所述组合物包括数均分子量为至少1,000原子质量单位（amu）的至少一种树枝状大分子化合物; 和至少一种具有小于1,000amu的小分子量物质，其选自聚亚烷基亚胺，聚烯丙胺，淀粉，糖和乙烯醇或烯丙醇的聚合物或共聚物; 和任选的至少一种表面活性剂。

    Enhancement modifiers for gas hydrate inhibitors
    6.
    发明申请
    Enhancement modifiers for gas hydrate inhibitors 审中-公开
    天然气水合物抑制剂增强改性剂

    公开(公告)号：US20050261529A1

    公开(公告)日：2005-11-24

    申请号：US11129799

    申请日：2005-05-16

    申请人： Daniel Crosby ,  Gordon Rivers ,  Lynn Frostman

    发明人： Daniel Crosby ,  Gordon Rivers ,  Lynn Frostman

    IPC分类号： C07C7/20 ,  C07C9/00 ,  E21B37/06

    CPC分类号： C07C7/20 ,  C10L3/107

    摘要： A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule involves adding an ion pair to the mixtures in an amount effective to inhibit formation of the hydrocarbon hydrates under conditions otherwise effective to form the hydrocarbon hydrates in the absence of the ion pair. In one non-limiting embodiment of the invention the ion pair includes a cationic component that may be a quaternary ammonium compound or an onium compound and a non-cationic counter-ion component that could be an anionic compound, a non-ionic compound and/or an amphoteric compound. Two specific, suitable non-cationic counter-ion components include sodium dodecyl sulfate and ammonium alkyl ether sulfate.

    摘要翻译： 在水和形成水合物的客体分子的混合物中抑制烃水合物的形成的方法包括在有效阻止在不存在的情况下形成烃水合物的条件下有效抑制烃水合物形成的量向混合物中加入离子对 的离子对。 在本发明的一个非限制性实施方案中，离子对包括可以是季铵化合物或鎓化合物的阳离子组分和可以是阴离子化合物的非阳离子抗衡离子组分，非离子化合物和/ 或两性化合物。 两种特定的合适的非阳离子抗衡离子组分包括十二烷基硫酸钠和烷基醚硫酸铵。