Swellable phyllosilicates
    39.
    发明申请
    Swellable phyllosilicates 有权
    可膨胀的页硅酸盐

    公开(公告)号:US20040037894A1

    公开(公告)日:2004-02-26

    申请号:US10362305

    申请日:2003-05-21

    Abstract: A swellable layer silicate is described based on smectite or sepiolite/palygorskite for use in media containing di- or polyvalent cations that reduce swellability, characterized by a swelling volume of about 5 to 50 mL, measured by addition of 2 g layer silicate (air-dried) to 100 mL water, and by a fineness of maximum 5 wt. % >40 nullm and maximum 20% >20 nullm, as dry sieve residue.

    Abstract translation: 基于蒙脱石或海泡石/坡缕石描述可溶胀层状硅酸盐,用于含有二价或多价阳离子的介质中,所述二价或多价阳离子可降低溶胀性,其特征在于溶胀体积为约5至50mL,通过加入2g层状硅酸盐(空气 - 干燥)至100mL水,细度最大为5wt。 %> 40mum,最大20%> 20mum,作为干筛残渣。

    Polyfunctional dispersants for controlling viscosity of phyllosilicates
    40.
    发明申请
    Polyfunctional dispersants for controlling viscosity of phyllosilicates 失效
    用于控制页硅酸盐粘度的多官能分散剂

    公开(公告)号:US20040014823A1

    公开(公告)日:2004-01-22

    申请号:US10452818

    申请日:2003-06-02

    Inventor: David J. Chaiko

    Abstract: This invention provides phyllosilicates and polyfunctional dispersants which can be manipulated to selectively control the viscosity of phyllosilicate slurries. The polyfunctional dispersants used in the present invention, which include at least three functional groups, increase the dispersion and exfoliation of phyllosilicates in polymers and, when used in conjunction with phyllosilicate slurries, significantly reduce the viscosity of slurries having high concentrations of phyllosilicates. The functional groups of the polyfunctional dispersants are capable of associating with multivalent metal cations and low molecular weight organic polymers, which can be manipulated to substantially increase or decrease the viscosity of the slurry in a concentration dependent manner. The polyfunctional dispersants of the present invention can also impart desirable properties on the phyllosilicate dispersions including corrosion inhibition and enhanced exfoliation of the phyllosilicate platelets.

    Abstract translation: 本发明提供页硅酸盐和多官能分散剂,其可被操作以选择性地控制页硅酸盐浆料的粘度。 本发明中使用的包括至少三个官能团的多官能分散剂增加聚合物中页硅酸盐的分散和剥离,并且当与页硅酸盐浆料结合使用时,显着降低具有高浓度页硅酸盐的浆料的粘度。 多官能分散剂的官能团能够与多价金属阳离子和低分子量有机聚合物缔合,其可被操作以基于浓度依赖的方式显着增加或降低浆料的粘度。 本发明的多官能分散剂也可以对页硅酸盐分散体赋予理想的性质,包括抑制叶片和增强页硅酸盐片的剥离。

Patent Agency Ranking