ALKYL SULFATE / ALKYL ETHER SULFATE GYPSUM FOAMER

    公开(公告)号:WO2018187560A1

    公开(公告)日:2018-10-11

    申请号:PCT/US2018/026242

    申请日:2018-04-05

    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): R 1 -OSO 3 - + M 1 (1) and the alkyl ether sulfate has Formula (2): R 2 -(OCH 2 CH 2 )yOSO 3 - + M 2 (2) in which R 1 and R 2 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 M 1 and M 2 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.

    BRANCHED ALKYL SULFATE GYPSUM FOAMER
    3.
    发明申请
    BRANCHED ALKYL SULFATE GYPSUM FOAMER 审中-公开
    分支式亚硫酸钙泡沫

    公开(公告)号:WO2016205170A1

    公开(公告)日:2016-12-22

    申请号:PCT/US2016/037322

    申请日:2016-06-14

    Applicant: STEPAN COMPANY

    Inventor: MIROUS, Brian K.

    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.

    Abstract translation: 公开了一种表面活性剂组合物,其包括具有8至12个碳原子的支链烷基硫酸盐; 任选具有8至12个碳原子的直链烷基硫酸盐; 和任选的具有8至13个碳原子的烷基醚硫酸盐。 公开了一种石膏浆料或石膏板芯,其包含如上所述的石膏,水和表面活性剂组合物。 核心中的泡沫空隙具有比用相应的直链烷基硫酸盐制成的泡沫空隙更大的中值直径。 公开了一种控制石膏板中间泡沫空隙直径的方法。 提供了包含直链烷基硫酸盐表面活性剂的第一泡沫水组合物。 还提供了包含支链烷基硫酸盐表面活性剂的第二泡沫水组合物。 选择在石膏组合物中使用的第一和第二泡沫水组合物的比例,或如果需要改变,以提供所需的中等泡沫空隙直径。

    BRANCHED ALKYL SULFATE GYPSUM FOAMER
    5.
    发明公开
    BRANCHED ALKYL SULFATE GYPSUM FOAMER 审中-公开
    分支的硫酸烷基酯石膏发泡剂

    公开(公告)号:EP3310732A1

    公开(公告)日:2018-04-25

    申请号:EP16812216.6

    申请日:2016-06-14

    Applicant: Stepan Company

    Inventor: MIROUS, Brian K.

    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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