公开(公告)号：US10792632B2

公开(公告)日：2020-10-06

申请号：US15736693

申请日：2016-06-14

Applicant: STEPAN COMPANY

Inventor： Brian K. Mirous

IPC: B01F17/00 ,  C04B24/16 ,  C04B28/14 ,  C04B40/00 ,  C04B103/40 ,  C04B111/00

Abstract: A surfactant composition is disclosed comprising branched alkyl sulfate having 8 to 12 carbon atoms; optionally a linear alkyl sulfate having 8 to 12 carbon atoms; and optionally an alkyl ether sulfate having 8 to 13 carbon atoms. A gypsum slurry or gypsum board core is disclosed comprising gypsum, water, and a surfactant composition as described above. The foam voids in the core have a greater median diameter than foam voids made with corresponding linear alkyl sulfate. A method of controlling the median foam void diameter in a gypsum board is disclosed. A first foam water composition is provided comprising a linear alkyl sulfate surfactant. A second foam water composition is also provided comprising a branched alkyl sulfate surfactant. The proportions of the first and second foam water compositions employed in a gypsum composition are selected, or if desired changed, to provide the desired median foam void diameter.

公开(公告)号：US10287530B2

公开(公告)日：2019-05-14

申请号：US15606285

申请日：2017-05-26

Applicant: Stepan Company

Inventor： David R. Allen ,  Randal J. Bernhardt ,  Aaron Brown ,  Gregory P. Dado ,  Xue Min Dong ,  Wilma Gorman ,  Ronald Masters ,  Patti Skelton

IPC: C11D1/14 ,  C07C305/10 ,  A01N25/00 ,  A01N25/30

Abstract: Surfactant compositions comprising an alkoxylate, a sulfate, or ether sulfate of a C10-C12 monounsaturated alcohol are disclosed. The alkoxylate, sulfate, or ether sulfate may derive from undecylenic acid or undecylenic alcohol. Compared with their saturated analogs, the monounsaturated alkoxylates, sulfates, and ether sulfates are less irritating, making them valuable for personal care, laundry, cleaners, and other household applications. Microscopy studies show that the alkoxylates, sulfates, and ether sulfates have favorable phase behavior over a wide range of actives levels, expanding opportunities for products with greater compaction. When combined with cationic surfactants, the alkoxylates, sulfates, and ether sulfates exhibit synergy, and they have improved solubility compared with their saturated analogs. The surfactants find value for the personal care, laundry and cleaning, emulsion polymerization, agricultural products, oilfield applications, and specialty foams industries.

公开(公告)号：US09963629B2

公开(公告)日：2018-05-08

申请号：US14774146

申请日：2014-03-05

Applicant: Stepan Company

Inventor： Nicholas S. Pendleton ,  Christopher D. Smith

IPC: C09K8/584 ,  C09K8/536 ,  C11C3/00 ,  C11C3/10

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.

公开(公告)号：US09777248B2

公开(公告)日：2017-10-03

申请号：US14426362

申请日：2013-09-05

Applicant: Stepan Company

Inventor： Ronald A. Masters ,  Wilma Gorman

IPC: C11D1/02 ,  C11D1/66 ,  C11D3/32 ,  C11D1/72 ,  C11D3/20 ,  C11D1/29 ,  C11D1/83 ,  C11D1/52 ,  C11D1/65 ,  C11D1/835 ,  C11D1/94

CPC classification number: C11D3/32 ,  C11D1/02 ,  C11D1/29 ,  C11D1/521 ,  C11D1/65 ,  C11D1/66 ,  C11D1/72 ,  C11D1/83 ,  C11D1/835 ,  C11D1/94 ,  C11D3/2082 ,  C11D3/2086

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.

公开(公告)号：US09593072B2

公开(公告)日：2017-03-14

申请号：US15017465

申请日：2016-02-05

Applicant: STEPAN COMPANY

Inventor： Bing Wang ,  Gregory P. Dado

IPC: C07C231/02 ,  C07D233/64 ,  C07D207/16 ,  C07C233/47

CPC classification number: C07C231/02 ,  C07C233/47 ,  C07D207/16 ,  C07D233/64 ,  C07C237/22

Abstract: N-Acyl amino acid salt compositions and an improved process for making them from fatty alkyl esters are disclosed. The process comprises reacting a fatty alkyl ester with an amino acid salt in the presence of an alkoxide catalyst at a pressure of at least 5 psig. At least 10 mole percent of catalyst is used based on the amount of fatty alkyl ester used as a reactant. Pressure and a minimum level of alkoxide catalyst are needed to give high fatty alkyl ester conversions and good yields of the desired N-acyl amino acid salt. The resulting N-acyl amino acid salt compositions have low color, an acceptable level of fatty acid soaps, and a small proportion of di-acylated by-products. Single-phase mixtures produced by combining various amino acid salts with glycinates, or by using an excess of either the fatty alkyl ester or amino acid salt, promote high conversions when the mixtures are reacted to give the desired N-acyl amino acid salt.

Abstract translation: 公开了N-酰基氨基酸盐组合物和由脂肪烷基酯制备它们的改进方法。 该方法包括在烷氧基催化剂存在下，在至少5psig的压力下使脂肪烷基酯与氨基酸盐反应。 基于用作反应物的脂肪烷基酯的量，使用至少10摩尔％的催化剂。 需要压力和最低水平的醇盐催化剂以产生高脂肪烷基酯转化率和所需N-酰基氨基酸盐的良好产率。 所得N-酰基氨基酸盐组合物具有低颜色，可接受水平的脂肪酸皂和少量二酰化副产物。 通过将各种氨基酸盐与甘氨酸盐组合或通过使用过量的脂肪烷基酯或氨基酸盐产生的单相混合物在混合物反应得到所需的N-酰基氨基酸盐时促进高转化率。

公开(公告)号：US09567512B2

公开(公告)日：2017-02-14

申请号：US14115865

申请日：2012-05-14

Applicant: Ramakrishna Ravikiran ,  Jieyuan Zhang

Inventor： Ramakrishna Ravikiran ,  Jieyuan Zhang

IPC: C09K8/584

CPC classification number: C09K8/584

Abstract: Surfactant compositions useful for oil recovery comprise from 10 to 80 wt. % of a prapoxylated C12-C20 alcohol sulfate, from 10 to 80 wt. % of a C12-C20 internal olefin sulfonate, and from 0.1 to 10 wt. % of an ethoxylated C4-C12 alcohol sulfate. A minor proportion of the ethoxylated alcohol sulfate reduces or eliminates the need to rely on costly cosolvents for achieving good performance in enhanced oil recovery processes. Low interfaoial tensions and low microemulsion viscosities can be achieved when the ethoxylated alcohol sulfate accompanies the propoxytated alcohol sulfate and internal olefin sulfonate. Aqueous concentrates comprising water and the surfactant compositions described above are also disclosed. Dilution of the surfactant composition or aqueous concentrate with water or brine to the desired anionic actives level provides an injectable composition useful for EOR applications. Stable, low-viscosity oil-in-water microemulsions comprising crude oil, water, and the surfactant compositions are also disclosed.

Abstract translation: 用于油回收的表面活性剂组合物包含10至80wt。 ％丙二酸化的C 12 -C 20醇硫酸盐，10至80重量％ ％的C 12 -C 20内烯烃磺酸盐，和0.1至10wt。 ％的乙氧基化C4-C12醇硫酸盐。 少量的乙氧基化醇硫酸盐减少或消除了在增强的油回收方法中获得良好性能的需要，依赖于昂贵的助溶剂。 当乙氧基化醇硫酸盐伴随丙氧基醇硫酸盐和内部烯烃磺酸盐时，可以实现低内在张力和低微乳液粘度。 还公开了包含水和上述表面活性剂组合物的水性浓缩物。 将表面活性剂组合物或含水浓缩物用水或盐水稀释至所需的阴离子活性物质水平，提供了可用于EOR应用的可注射组合物。 还公开了包含原油，水和表面活性剂组合物的稳定的低粘度水包油微乳液。

公开(公告)号：US09487467B2

公开(公告)日：2016-11-08

申请号：US14004887

申请日：2012-03-07

Applicant: Douglas Hillshafer ,  Andrew Guo

Inventor： Douglas Hillshafer ,  Andrew Guo

IPC: C07C67/08 ,  C08G18/08 ,  C08G18/34 ,  C08G18/42 ,  C08G63/181 ,  C09D175/06 ,  C09J175/06

CPC classification number: C07C67/08 ,  C08G18/14 ,  C08G18/341 ,  C08G18/4211 ,  C08G18/4252 ,  C08G63/181 ,  C09D175/06 ,  C09J175/06

Abstract: A method for producing a polyester polyol is disclosed. The method comprises reacting phthalic anhydride with a diol selected from the group consisting of ethylene glycol, propylene glycol, 1,3-propanediol, 2-methyl-1,3-propanediol, neopentyl glycol, 1,6-hexanediol, polyethylene glycols having a number average molecular weight within the range of 200 g/mol to 600 g/mol, and mixtures thereof at a diol to phthalic anhydride molar ratio within the range of 1.1 to 1.6. The resulting o-phthalate polyester polyol has a hydroxyl value in the range of 18 to 400 mg KOH/g, an acid value in the range of 0.2 to 5.0 mg KOH/g, and 1 wt. % or less of cyclic esters.

Abstract translation: 公开了一种聚酯多元醇的制造方法。 该方法包括使邻苯二甲酸酐与选自乙二醇，丙二醇，1,3-丙二醇，2-甲基-1,3-丙二醇，新戊二醇，1,6-己二醇，具有 数均分子量在200g / mol至600g / mol的范围内，以及其在二醇与邻苯二甲酸酐摩尔比在1.1至1.6范围内的混合物。 得到的邻苯二甲酸酯聚酯多元醇的羟基值在18-400mg KOH / g的范围内，酸值在0.2-5.0mg KOH / g的范围内，和1wt。 ％以下的环状酯。

公开(公告)号：US09475955B2

公开(公告)日：2016-10-25

申请号：US14833554

申请日：2015-08-24

Applicant: Stepan Company

Inventor： Gary Luebke ,  Renee Luka ,  Andrew D Malec ,  Michael R Terry ,  Patrick Shane Wolfe

IPC: C09D133/12 ,  C09D7/12 ,  C08J5/18 ,  C09D167/08 ,  C09J167/08

CPC classification number: C09D133/12 ,  C08J5/18 ,  C09D7/63 ,  C09D167/08 ,  C09J167/08 ,  C08K5/20

Abstract: A film may be formed from film forming compositions which comprise at least one carboxamide based coalescing solvent. These coalescing solvents impart equivalent or improved wet-scrub resistance, block resistance, gloss, dirt pick-up resistance and leveling characteristics to the films on a substrate, without contributing to total VOC levels, when replacing conventional coalescing solvents. The present invention also includes a method for forming a film comprising applying a film forming composition comprising polyunsaturated reactive carboxamides to a substrate and curing the film under ambient conditions. The coalescing carboxamide solvents are suitable for paint, latex based caulk, adhesives and floor care applications.

公开(公告)号：US09150740B2

公开(公告)日：2015-10-06

申请号：US13699280

申请日：2011-05-23

Applicant: Gary Luebke ,  Renee Luka ,  Andrew D. Malec ,  Michael R. Terry ,  Patrick Shane Wolfe

Inventor： Gary Luebke ,  Renee Luka ,  Andrew D. Malec ,  Michael R. Terry ,  Patrick Shane Wolfe

IPC: C09D7/12 ,  C08J5/18 ,  C09D167/08 ,  C09J167/08

CPC classification number: C09D133/12 ,  C08J5/18 ,  C09D7/63 ,  C09D167/08 ,  C09J167/08 ,  C08K5/20

Abstract: A film may be formed from film forming compositions which comprise at least one carboxamide based coalescing solvent. These coalescing solvents impart equivalent or improved wet-scrub resistance, block resistance, gloss, dirt pick-up resistance and leveling characteristics to the films on a substrate, without contributing to total VOC levels, when replacing conventional coalescing solvents. The present invention also includes a method for forming a film comprising applying a film forming composition comprising polyunsaturated reactive carboxamides to a substrate and curing the film under ambient conditions. The coalescing carboxamide solvents are suitable for paint, latex based caulk, adhesives and floor care applications.

Abstract translation: 可以由包含至少一种基于羧酰胺的聚结溶剂的成膜组合物形成膜。 当代替常规的聚结溶剂时，这些聚结溶剂赋予基材上的膜相当或改进的耐湿擦洗性，阻燃性，光泽度，抗污垢性和流平性，而不影响总VOC水平。 本发明还包括一种形成膜的方法，包括将包含多不饱和反应性甲酰胺的成膜组合物施加到基底上并在环境条件下固化该膜。 聚合羧酰胺溶剂适用于油漆，胶乳基填缝料，粘合剂和地板护理应用。

公开(公告)号：US09056964B2

公开(公告)日：2015-06-16

申请号：US14175911

申请日：2014-02-07

Applicant: Stepan Company

Inventor： Rick Tabor ,  Brian K. Mirous ,  Timothy L. Lambert ,  Michael E. O'Brien ,  Matthew I. Levinson ,  Daniel J. Dershowitz

IPC: C07C67/29 ,  C08K5/12 ,  C08K5/134 ,  C07C67/03 ,  C07C69/82

CPC classification number: C08K5/1345 ,  C07C67/03 ,  C07C67/29 ,  C07C69/82 ,  C08K5/12 ,  Y02P20/582

Abstract: A process for making bis(aryloxyalkyl)terephthalates useful as antiplasticizers for thermoplastic polyesters is disclosed. Dimethyl terephthalate is reacted with an excess of an aryloxyalkanol in the presence of a condensation catalyst to produce an intermediate mixture comprising a bis(aryloxyalkyl)terephthalate, a mono(aryloxyalkyl)terephthalate, and unreacted aryloxyalkanol. This mixture continues to react at reduced pressure while unreacted aryloxyalkanol is removed and the mono-ester content is reduced to less than 1 mole % based on the combined amounts of mono- and bis-esters. Both steps are performed substantially in the absence of oxygen. Additional unreacted aryloxyalkanol is then removed to provide a purified bis(aryloxyalkyl)terephthalate having an overall purity of at least 98 mole % and a yellowness index less than 10. Careful control over catalysis, exposure to air, and other process conditions enables the preparation of high yields of bis(aryloxyalkyl)terephthalates that have low color and other valuable attributes. A method of producing bis(aryloxyalkyl)terephthalate articles having improved compressive strength is also disclosed.

Abstract translation: 公开了一种制备用作热塑性聚酯的抗增塑剂的双（芳氧基烷基）对苯二甲酸酯的方法。 在缩合催化剂的存在下，对苯二甲酸二甲酯与过量的芳氧基烷醇反应，以产生包含双（芳氧基烷基）对苯二甲酸酯，单（芳氧基烷基）对苯二甲酸酯和未反应的芳氧基烷醇的中间体混合物。 该混合物在减压下继续反应，同时除去未反应的芳氧基烷醇，并且基于单酯和双酯的组合量，单酯含量降低至小于1摩尔％。 两个步骤基本上在不存在氧的情况下进行。 然后除去另外的未反应的芳氧基烷醇，以提供纯度为至少98摩尔％，黄度指数小于10的纯化双（芳氧基烷基）对苯二甲酸酯。小心控制催化，暴露于空气和其它工艺条件使得能够制备 具有低颜色和其他有价值属性的双（芳氧基烷基）对苯二甲酸酯的高收率。 还公开了一种制备具有改善的抗压强度的双（芳氧基烷基）对苯二甲酸酯制品的方法。