FOAMERS FOR UNLOADING HIGH-CONDENSATE GAS WELLS
    121.
    发明申请
    FOAMERS FOR UNLOADING HIGH-CONDENSATE GAS WELLS 审中-公开
    用于卸载高浓度气体井的泡沫

    公开(公告)号:US20160040056A1

    公开(公告)日:2016-02-11

    申请号:US14774146

    申请日:2014-03-05

    Applicant: STEPAN COMPANY

    CPC classification number: C09K8/584 C09K8/536 C11C3/00 C11C3/10

    Abstract: Foamable compositions useful for deliquifying gas wells, particularly gas wells having at least 40 vol. % of a hydrocarbon condensate, are disclosed. The compositions comprise, in addition to the condensate, an aqueous brine and 250 to 10,000 ppm of a monounsaturated betaine or sulfobetaine. A method for deliquifying the production line of a natural gas well is also disclosed. The method comprises introducing into a gas well a monounsaturated betaine or sulfobetaine to form a foamed composition, and removing at least a portion of the foamed composition from the production line. Certain betaines and sulfobetaines are remarkably effective in producing foams useful for gas well deliquification, particularly gas wells characterized by high or very high condensate levels. The inventive compositions and method provide a cost-effective way to enable thousands of gas wells to be utilized more productively.

    Abstract translation: 可气泡组合物可用于气化气分离,特别是具有至少40vol。 %的烃缩合物。 组合物除冷凝物外还包含水性盐水和250至10,000ppm的单不饱和甜菜碱或磺基甜菜碱。 还公开了天然气井生产线的鉴定方法。 该方法包括向气井中引入单不饱和甜菜碱或磺基甜菜碱以形成发泡组合物,并从生产线除去至少一部分发泡组合物。 某些甜菜碱和磺基甜菜碱在生产可用于气井分离的泡沫体方面是非常有效的,特别是以高或非常高的冷凝液水平为特征的气井。 本发明的组合物和方法提供了一种成本有效的方法,以使得能够更有效地利用数千个气井。

    FABRIC SOFTENER COMPOSITIONS
    122.
    发明申请
    FABRIC SOFTENER COMPOSITIONS 审中-公开
    织物肥皂组合物

    公开(公告)号:US20160010029A1

    公开(公告)日:2016-01-14

    申请号:US14853500

    申请日:2015-09-14

    Applicant: Stepan Company

    Abstract: A fabric conditioning active composition comprising an esterquat mixture of quaternized mono-, di-, and tri-esters of alkanolamine in which the tri-esterquat content of the quaternized esterquat mixture is greater than 25% by weight of the esterquat mixture, and the combined di-esterquat and tri-esterquat content in the esterquat mixture is greater than 78% by weight of the esterquat mixture. Additionally, the free fatty acid content of the composition is greater than 1% by weight based on the weight of the esterquat mixture. The fabric conditioning active composition provides high viscosity when dispersed into water at low concentrations of 0.5% to 12%, without the need for additional polymeric thickeners or other thickening additives.

    Abstract translation: 一种织物调理活性组合物,其包含链烷醇胺的季铵化单 - ,二 - 和三 - 酯的酯季铵盐混合物,其中季铵酯酯混合物的三酯季铵含量大于酯季铵盐混合物的25重量% 酯季铵盐混合物中的二酯季铵盐和三酯季铵盐含量大于酯季铵盐混合物的78重量%。 另外,基于酯季铵盐混合物的重量,组合物的游离脂肪酸含量大于1重量%。 当以0.5%至12%的低浓度分散在水中时,织物调理活性组合物提供高粘度,而不需要另外的聚合物增稠剂或其它增稠添加剂。

    Alkyl lactyllactates and processes of making the same
    123.
    发明授权
    Alkyl lactyllactates and processes of making the same 有权
    烷基乳酸乳酸酯及其制备方法

    公开(公告)号:US09133092B2

    公开(公告)日:2015-09-15

    申请号:US14146662

    申请日:2014-01-02

    Applicant: Stepan Company

    Abstract: Provided are alkyl lactyllactate compositions that can be prepared from (1) lactide or alternatively lactic acid, and (2) a hydroxyl containing compound such as an alcohol, preferably a fatty alcohol or an alkoxylated alcohol, with (3) an acid catalyst. Preferably, the fatty alcohol contains from about 6 to 18 carbon atoms, such as lauryl alcohol. The alkyl lactyllactates can be used as surfactants, emulsifiers, skin feel agents, film formers, thickeners, rheological modifiers, etc., for personal care and other application areas. Compositions containing at least one alkyl lactyllactate are also provided. The compositions can further contain at least one surfactant.

    Abstract translation: 本发明提供可由(1)丙交酯或乳酸制备的乳酸乳糖酯组合物,和(2)含羟基化合物如醇,优选脂肪醇或烷氧基化醇与(3)酸催化剂。 优选地,脂肪醇含有约6至18个碳原子,例如月桂醇。 乳酸乳酸烷基酯可用作个人护理和其他应用领域的表面活性剂,乳化剂,皮肤感觉剂,成膜剂,增稠剂,流变改性剂等。 还提供了含有至少一种乳糖基乳酸酯的组合物。 组合物还可以含有至少一种表面活性剂。

    AQUEOUS HARD SURFACE CLEANERS BASED ON MONOUNSATURATED FATTY AMIDES
    124.
    发明申请
    AQUEOUS HARD SURFACE CLEANERS BASED ON MONOUNSATURATED FATTY AMIDES 审中-公开
    基于蒙脱石脂肪酸的水性硬表面清洁剂

    公开(公告)号:US20150225674A1

    公开(公告)日:2015-08-13

    申请号:US14426362

    申请日:2013-09-05

    Applicant: Stepan Company

    Abstract: Aqueous hard surface cleaners and concentrates are disclosed. In one aspect, the cleaners comprise water, a monounsaturated C8-C14 fatty N,N-dialkylamide, and at least one anionic, cationic, nonionic, or amphoteric surfactant. The cleaners have a pH within the range of 6.0 to 9.0. Dilutable hard surface cleaner concentrates comprising the monounsaturated N,N-dialkylamide and a surfactant are also disclosed. Also included are aqueous hard surface cleaners which comprise a monounsaturated N,N-dialkylamide, and which by measure of ASTM D4488-95 A5 soil, provide superior percent cleaning at a pH less than 10 than they do at pH 10 and higher. Surprisingly, when a monounsaturated C8-C14 fatty N,N-dialkylamide is included in the aqueous hard surface cleaner or concentrate, rapid and thorough cleaning performance can be achieved even at relatively neutral pH. Consequently, the hard surface cleaners are effective on greasy soils, including baked-on soils, despite their low alkalinity.

    Abstract translation: 公开了水性硬表面清洁剂和浓缩物。 一方面,清洁剂包括水,单不饱和C8-C14脂肪N,N-二烷基酰胺和至少一种阴离子,阳离子,非离子或两性表面活性剂。 清洁剂的pH值在6.0至9.0的范围内。 还公开了包含单不饱和N,N-二烷基酰胺和表面活性剂的可稀释的硬表面清洁剂浓缩物。 还包括含有单不饱和N,N-二烷基酰胺的水性硬表面清洁剂,并且通过测量ASTM D4488-95 A5土壤,在比pH10和更高的pH小于10的pH下提供优异的百分比清洗。 令人惊奇的是,当含水硬质表面清洁剂或浓缩物中包含单不饱和C8-C14脂肪N,N-二烷基酰胺时,即使在相对中性的pH下也能实现快速彻底的清洗性能。 因此,硬表面清洁剂对油腻的土壤(包括烤土壤)有效,尽管它们的碱度低。

    Method of Sulfonation of Block Polymers
    125.
    发明申请
    Method of Sulfonation of Block Polymers 有权
    块状聚合物的磺化方法

    公开(公告)号:US20150005439A1

    公开(公告)日:2015-01-01

    申请号:US14486604

    申请日:2014-09-15

    Applicant: Stepan Company

    Abstract: Improved methods for preparing sulfonated block polymers with acyl sulfates in non-halogenated aliphatic solvents are provided. The methods include the sulfonation of a precursor block polymer with an acyl sulfate in a reaction mixture further comprising at least one non-halogenated aliphatic solvent to form a sulfonated block polymer, wherein the initial concentration of the precursor block polymer is in the range of from about 0.1 wt % to a concentration that is below the limiting concentration of the precursor block polymer based on the total weight of the reaction mixture. A sulfonation degree of greater than about 1.0 milliequivalent sulfonic acid per gram sulfonated block polymer can be achieved substantially free of polymer precipitation and free of disabling gelation.

    Abstract translation: 提供了在非卤代脂族溶剂中制备具有酰基硫酸盐的磺化嵌段聚合物的改进方法。 所述方法包括在还含有至少一种非卤代脂族溶剂的反应混合物中使用酰基硫酸酯磺化前体嵌段聚合物以形成磺化嵌段聚合物,其中前体嵌段聚合物的初始浓度范围为 约0.1重量%至低于前体嵌段聚合物的极限浓度的浓度,基于反应混合物的总重量。 可以实现大于约1.0毫当量磺酸/克磺化嵌段聚合物的磺化度,基本上不含聚合物沉淀并且没有失效的凝胶化。

    Dilutable Biocidal Compositions and Methods of Use
    127.
    发明申请
    Dilutable Biocidal Compositions and Methods of Use 有权
    可稀释的杀菌组合物和使用方法

    公开(公告)号:US20130101677A1

    公开(公告)日:2013-04-25

    申请号:US13708503

    申请日:2012-12-07

    Applicant: STEPAN COMPANY

    Abstract: The present technology, in general, relates to antimicrobial and biocidal compositions, for example bucket dilutable biocidal compositions, and the various applications and/or processes of utilizing them as hard surface disinfectants and/or cleaners. The biocidal composition of the present technology comprises hydrogen peroxide, a quaternary ammonium compound, an appropriate acid and an amine oxide in specific concentrations to provide a 5 minute or less microbial contact kill time for at least one biocidal target.

    Abstract translation: 本技术通常涉及抗微生物和杀生物剂组合物,例如桶可稀释的杀生物组合物,以及将其用作硬表面消毒剂和/或清洁剂的各种应用和/或方法。 本技术的杀生物组合物包含特定浓度的过氧化氢,季铵化合物,适当的酸和氧化胺,以提供至少一种杀生物靶标的5分钟或更少的微生物接触杀灭时间。

    Method of making alkyl esters
    128.
    发明申请
    Method of making alkyl esters 审中-公开
    制备烷基酯的方法

    公开(公告)号:US20040254387A1

    公开(公告)日:2004-12-16

    申请号:US10828594

    申请日:2004-04-21

    Applicant: Stepan Company

    CPC classification number: C11C3/10 C11C3/003 Y02E50/13

    Abstract: A method for making biodiesel from a vegetable oil source is described. The method involves simultaneously reacting the free fatty acids and glycerides of the vegetable oil source with methanol, under pressure up to 250 psig, into fatty acid alkyl esters for use as biodiesel. The conversion is catalyzed by an acid at temperatures between about 80null C. to about 200null C.

    Abstract translation: 描述了从植物油源生产生物柴油的方法。 该方法包括同时使植物油来源的游离脂肪酸和甘油酯与压力达250psig的甲醇一起反应成用作生物柴油的脂肪酸烷基酯。 转化率在约80℃至约200℃的温度下由酸催化。

Patent Agency Ranking