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公开(公告)号：US11066550B2
公开(公告)日：2021-07-20
申请号：US16571970
申请日：2019-09-16
Applicant: STEPAN COMPANY
Inventor： Warren A. Kaplan , Jennifer S. Westfall
Abstract: Polyether-epoxide polymer compositions are disclosed. The compositions comprise a reaction product of a polyepoxide compound and a polyol composition comprising a polyether polyol. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.5:1 to 3:1. The polyether-epoxide composition has a Tg within the range of −40° C. to 60° C. The polyether polyol has a hydroxyl value within the range of 150 to 800 mg KOH/g and an average hydroxyl functionality within the range of 3.5 to 8.0. In some aspects, the polyol composition further comprises a polyester polyol. Low- and elevated-temperature processes catalyzed by bases or Lewis acids for making the polyether-epoxide compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for coatings, elastomers, adhesives, sealants, and other valuable products is assembled from readily available starting materials without reliance on polyamines or polyisocyanates.
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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.
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公开(公告)号：US20200040279A1
公开(公告)日：2020-02-06
申请号：US16601726
申请日：2019-10-15
Applicant: STEPAN COMPANY
Inventor： Randal J. BERNHARDT , Xue Min DONG
IPC: C11D1/65 , A61K8/41 , A61Q5/02 , A61Q19/10 , A01N25/04 , A61K8/46 , A61K8/49 , A61Q19/00 , C09K8/584 , C11D11/00
Abstract: Synergistic surfactant blends are disclosed. In one aspect, the blend comprises an anionic surfactant and a metathesis-based cationic surfactant comprising a quaternized derivative. The quaternized derivative is a quaternized fatty amine, quaternized fatty amidoamine, imidazoline quat, or esteramine quat made from a metathesis-derived C10-C17 monounsaturated acid or its ester derivative. Also disclosed are synergistic surfactant blends comprising a cationic surfactant and a metathesis-based anionic surfactant comprising a sulfonated derivative. The sulfonated derivative is a fatty ester sulfonate, fatty acid sulfonate, sulfoestolide, fatty amide sulfonate, sulfonated fatty ester alkoxylate, imidazoline quat sulfonate, sulfonated amidoamine oxide, or sulfonated amidoamine betaine. The synergistic blends have a negative β value or a reduced interfacial tension (IFT) when compared with an expected IFT value calculated from the individual surfactant components. Blends of the invention also exhibit surprisingly favorable solubility profiles. The surfactant blends are useful for laundry detergents, dish detergents, household or industrial cleaners, personal care products, agricultural products, building materials, oil recovery compositions, emulsion polymers, and other practical applications.
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公开(公告)号：US20200032043A1
公开(公告)日：2020-01-30
申请号：US16594556
申请日：2019-10-07
Applicant: STEPAN COMPANY , CARLISLE INTANGIBLE COMPANY
Inventor： Warren KAPLAN , Sarah WOLEK , Mike HEISHMAN , William SCHNEIDER
Abstract: A promoted membrane suitable for use in single-ply roofing applications is disclosed. The membrane comprises EPDM rubber and 0.1 to 10 wt. % of an adhesion promoter. The promoter comprises a polyester resin having a hydroxyl number within the range of 28 to 250 mg KOH/g, a content of terephthalate recurring units within the range of 40 to 65 wt. % based on the amount of polyester resin, and a glass-transition temperature within the range of 40° C. to 80° C. Roofing systems comprising the promoted EPDM membranes are also disclosed. Compared with an unpromoted membrane, the promoted membranes provide a substantial and unexpected boost in peel strength such that the roofing systems resist weather-induced failure of the bond between the roofing membrane and the roof substrate. The invention helps roofers minimize or limit the aggravation and cost of warranty claims from customers whose buildings and contents may otherwise be damaged or destroyed by exposure to wind and/or rain.
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公开(公告)号：US20190382521A1
公开(公告)日：2019-12-19
申请号：US16556396
申请日：2019-08-30
Applicant: STEPAN COMPANY
Inventor： Warren A. KAPLAN , Jennifer S. WESTFALL
Abstract: Isocyanate-modified polyester-epoxide polymer (i-PEEP) compositions are disclosed. The i-PEEP compositions comprise a reaction product of a polyepoxide compound, a polyisocyanate, and a polyester polyol composition. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.2 to 2. The i-PEEP index as defined herein is within the range of 100 to 200. The i-PEEP composition has a Tg within the range of −30° C. to 35° C. Low- and elevated-temperature processes catalyzed by bases or Lewis acids for making the i-PEEP compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for coatings, elastomers, adhesives, sealants, and other valuable products is assembled from readily available starting materials without reliance on the polyamines typically used to cure epoxy systems.
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Patent Agency Ranking
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.
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公开(公告)号：US20180305258A1
公开(公告)日：2018-10-25
申请号：US15767750
申请日：2016-10-14
Applicant: CSR BUILDING PRODUCTS LIMITED , STEPAN COMPANY
Inventor： Greg Neil , Dylan Riessen , Brian Mirous
CPC classification number: C04B24/16 , B28B19/0015 , B32B13/04 , C04B28/14 , C04B38/106 , C04B40/0039 , C04B2103/40 , C04B2111/0062 , C11D1/146 , C11D1/29 , C11D1/37 , C04B38/10
Abstract: Disclosed is a surfactant composition and its use in the production of a gypsum product. Also disclosed is a method of producing gypsum plasterboard, as well as gypsum plasterboard that is formed from foamed slurry comprising the surfactant composition. The surfactant composition comprises from 60 to 99 wt. % by total surfactant weight of an alkyl sulphate component having the structure: R1—OSO3−+M1, in which R1 is an alkyl having from 9 to 11 carbon atoms and M1 is a cation. The surfactant composition also comprises from 1 to 40 wt. % by total surfactant weight of an alkyl ether sulphate component having the structure: R2—(OCH2CH2)yOSO3−+M2, in which R2 is an alkyl having from 8 to 10 carbon atoms, y has an average value of 0.1 to 5 and M2 is a cation.
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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
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.
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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.
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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。
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