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Patent Agency Ranking
公开(公告)号：US20160031761A1
公开(公告)日：2016-02-04
申请号：US14885231
申请日：2015-10-16
Applicant: Stepan Company
Inventor： Lawrence Munie , Jarrod Kaltenbach , Mary B. Odisho , Brian K. Mirous
CPC classification number: E04C2/04 , C04B28/14 , C04B38/106 , C04B2111/0062 , E04C2/043 , C04B2103/40 , C04B24/12 , C04B24/16 , C04B40/0028
Abstract: A gypsum composition including calcined gypsum, water, and a foaming agent composition which comprises at least one betaine, either alone or in combination with at least one alkyl sulfate and/or at least one alkyl ether sulfate, is disclosed. The gypsum composition can be used to prepare foamed gypsum wallboard.
Abstract translation: 公开了包括煅烧石膏，水和发泡剂组合物的石膏组合物，其包含单独或与至少一种烷基硫酸盐和/或至少一种烷基醚硫酸盐组合的至少一种甜菜碱。 石膏组合物可用于制备泡沫石膏墙板。
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公开(公告)号：US20180141014A1
公开(公告)日：2018-05-24
申请号：US15736693
申请日：2016-06-14
Applicant: STEPAN COMPANY
Inventor： Brian K. Mirous
CPC classification number: B01F17/0057 , B01F17/0085 , C04B24/16 , C04B28/14 , C04B40/0039 , C04B2103/40 , C04B2111/0062 , C04B38/106
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：US12180116B2
公开(公告)日：2024-12-31
申请号：US18199529
申请日：2023-05-19
Applicant: STEPAN COMPANY , SAINT-GOBAIN PLACO
Inventor： Brian K. Mirous , Hamouda Jaffel
Abstract: A surfactant composition is disclosed comprising a first alkyl sulfate surfactant, optionally a second alkyl sulfate surfactant, and optionally an alkyl ether sulfate. The first and second alkyl sulfate surfactants have Formula (1): R1—OSO3−+M1 (1) and the alkyl ether sulfate has Formula (2): R2—(OCH2CH2)yOSO3−+M2 (2) in which R1 and R2 are independently selected linear or branched alkyl or a combination thereof having from 6 to 14 carbon atoms, y has an average value from 0.1 to 5, and M1 and M2 are cations independently selected from sodium, calcium, ammonium, or a combination of two or all of these. Use of the composition as a foaming agent for gypsum slurries, and of the gypsum slurries for formation of gypsum boards, are disclosed.
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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：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
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。
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