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    Polyurethane thickeners useful for clear and high gloss aqueous based systems a process for providing rheological properties to clear aqeous-based systems using such thickeners and clear aqueous-based systems containing such thickeners
    1.
    发明授权
    Polyurethane thickeners useful for clear and high gloss aqueous based systems a process for providing rheological properties to clear aqeous-based systems using such thickeners and clear aqueous-based systems containing such thickeners 失效
    用于透明和高光泽水基体系的聚氨酯增稠剂用于使用这种增稠剂和含有这种增稠剂的透明含水系统提供流变性能以清除基于酸的体系的方法

    公开(公告)号：US5973063A

    公开(公告)日：1999-10-26

    申请号：US937027

    申请日：1997-09-24

    申请人： Joseph Doolan ,  Charles Cody ,  Wilbur Mardis ,  Anthony Ricci ,  Fred Whitton

    发明人： Joseph Doolan ,  Charles Cody ,  Wilbur Mardis ,  Anthony Ricci ,  Fred Whitton

    IPC分类号： C08G18/12 ,  C09D7/00 ,  C09D175/08 ,  C08J3/00 ,  C08K3/20 ,  C08L75/00

    CPC分类号： C09D175/08 ,  C08G18/12 ,  C09D7/002

    摘要： The present invention relates to improved thickening compositions, often referred to as Theological additives, used to provide viscosity control, flow, leveling and other rheological properties to clear aqueous systems such as automotive clear-coat paints and coatings. The invention hereof involves the synthesis of a new family of Theological additives by combining, through a reaction process, chemicals used to make specified polyurethane polymer compositions. These novel copolymers provides the good flow and leveling and gloss retention that polyurethane associative thickeners impart to water-based systems, without the loss of clarity that such polymers have caused in the past. Levels of the rheological thickening composition, varying between about 0.01% and about 10%, based on the total weight of the system to be thickened, have been found to be useful to create novel clear aqueous systems containing such thickening compositions.

    摘要翻译： 本发明涉及改进的增稠组合物，通常称为神学添加剂，用于提供粘度控制，流动，流平和其它流变性能以清除水性体系如汽车透明涂料和涂料。 本发明涉及通过反应过程将用于制备特定聚氨酯聚合物组合物的化学品结合在一起来合成新的神学添加剂系列。 这些新型共聚物提供聚氨酯缔合增稠剂赋予水基体系的良好的流动性和流平性和光泽保持性，而不会使过去这些聚合物引起的透明度降低。 已经发现流变增稠组合物的水平基于待增稠体系的总重量在约0.01％至约10％之间变化，可用于产生含有这种增稠组合物的新型透明含水体系。