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    • 2. 发明申请
    • ENCAPSULATED PARTICLE
    • 封装颗粒
    • US20130309499A1
    • 2013-11-21
    • US13896975
    • 2013-05-17
    • BASF SE
    • Raymond NeffAlexander GershanovichDonald C. Mente
    • C09D175/08B32B27/40
    • C05G3/0088B01J13/14B01J13/22B32B27/40C05C9/00C05G3/0029C09D175/08Y10T428/2998
    • An encapsulated particle includes a core particle, a polyurethane layer, and a wax. The polyurethane layer is disposed about the core particle and the wax is disposed about the polyurethane layer. The polyurethane layer includes the reaction product of an isocyanate and a polyol component. The polyol component includes a catalytic polyol derived from an aromatic amine-based initiator and a polyether polyol that is different from the catalytic polyol in a weight ratio of from about 1:2 to about 10:1. A method of encapsulating the core particle includes the steps of providing the core particle, the isocyanate, the polyol component, and the wax. The method also includes the steps of mixing and reacting the isocyanate and the polyol component to form a polyurethane, encapsulating the core particle with the polyurethane layer which comprises the polyurethane, and encapsulating the polyurethane layer with the wax.
    • 包封的颗粒包括核心颗粒,聚氨酯层和蜡。 聚氨酯层设置在芯颗粒周围,并且蜡围绕聚氨酯层设置。 聚氨酯层包括异氰酸酯和多元醇组分的反应产物。 多元醇组分包括衍生自芳族胺类引发剂的催化多元醇和与催化多元醇不同的聚醚多元醇,重量比为约1:2至约10:1。 包封核心颗粒的方法包括提供核心颗粒,异氰酸酯,多元醇组分和蜡的步骤。 该方法还包括混合和反应异氰酸酯和多元醇组分以形成聚氨酯的步骤,将核心颗粒与包含聚氨酯的聚氨酯层包封,并将聚氨酯层与蜡包封。
    • 5. 发明申请
    • Encapsulated Particle
    • 封装粒子
    • US20150158781A1
    • 2015-06-11
    • US14401854
    • 2013-05-20
    • BASF SE
    • Raymond NeffAlexander GershanovichDonald Mente
    • C05G3/00C05C9/00
    • C05G3/0088B01J13/14B01J13/22B32B27/40C05C9/00C05G3/0029C09D175/08Y10T428/2998
    • An encapsulated particle includes a core particle and a polyurethane layer. The polyurethane layer is disposed about the core particle and includes the reaction product of an isocyanate and a polyol component. The polyurethane layer is formed in the presence of a silicone surfactant. The polyol component includes a first polyol having a nominal functionality of at least 2.5 and a hydroxyl number of from 20 to 300 mg KOH/g. A method of encapsulating the core particle includes the steps of providing the core particle, the silicone surfactant, the isocyanate, and the polyol component. The method also includes the steps of mixing the isocyanate and the polyol component and encapsulating the core particle with the polyurethane layer.
    • 包封的颗粒包括核心颗粒和聚氨酯层。 聚氨酯层设置在核心颗粒周围,并且包括异氰酸酯和多元醇组分的反应产物。 在硅氧烷表面活性剂的存在下形成聚氨酯层。 多元醇组分包括名义官能度为至少2.5,羟值为20至300mg KOH / g的第一多元醇。 包封核心颗粒的方法包括提供核心颗粒,硅氧烷表面活性剂,异氰酸酯和多元醇组分的步骤。 该方法还包括混合异氰酸酯和多元醇组分并将核心颗粒与聚氨酯层包封的步骤。
    • 8. 发明授权
    • Encapsulated particle
    • 封装颗粒
    • US09067842B2
    • 2015-06-30
    • US13896975
    • 2013-05-17
    • BASF SE
    • Raymond NeffAlexander GershanovichDonald C. Mente
    • C09D175/08B32B27/40C05G3/00B01J13/14B01J13/22
    • C05G3/0088B01J13/14B01J13/22B32B27/40C05C9/00C05G3/0029C09D175/08Y10T428/2998
    • An encapsulated particle includes a core particle, a polyurethane layer, and a wax. The polyurethane layer is disposed about the core particle and the wax is disposed about the polyurethane layer. The polyurethane layer includes the reaction product of an isocyanate and a polyol component. The polyol component includes a catalytic polyol derived from an aromatic amine-based initiator and a polyether polyol that is different from the catalytic polyol in a weight ratio of from about 1:2 to about 10:1. A method of encapsulating the core particle includes the steps of providing the core particle, the isocyanate, the polyol component, and the wax. The method also includes the steps of mixing and reacting the isocyanate and the polyol component to form a polyurethane, encapsulating the core particle with the polyurethane layer which comprises the polyurethane, and encapsulating the polyurethane layer with the wax.
    • 包封的颗粒包括核心颗粒,聚氨酯层和蜡。 聚氨酯层设置在芯颗粒周围,并且蜡围绕聚氨酯层设置。 聚氨酯层包括异氰酸酯和多元醇组分的反应产物。 多元醇组分包括衍生自芳族胺类引发剂的催化多元醇和与催化多元醇不同的聚醚多元醇,重量比为约1:2至约10:1。 包封核心颗粒的方法包括提供核心颗粒,异氰酸酯,多元醇组分和蜡的步骤。 该方法还包括混合和反应异氰酸酯和多元醇组分以形成聚氨酯的步骤,将核心颗粒与包含聚氨酯的聚氨酯层包封,并将聚氨酯层与蜡包封。