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5 条记录 (耗时 0.012 秒)

    Process for providing barrier properties to porous substrates
    3.
    发明授权
    Process for providing barrier properties to porous substrates 失效
    为多孔基材提供阻隔性能的方法

    公开(公告)号：US07029725B2

    公开(公告)日：2006-04-18

    申请号：US10795630

    申请日：2004-03-08

    申请人： Frank Ralph Pepe ,  Charles Raymond Hegedus ,  John Joseph Rabasco

    发明人： Frank Ralph Pepe ,  Charles Raymond Hegedus ,  John Joseph Rabasco

    IPC分类号： B05D3/02

    CPC分类号： C04B41/4869 ,  B27K3/15 ,  C04B41/009 ,  C04B41/63 ,  C04B2111/27 ,  C08F218/08 ,  C08L1/284 ,  C08L97/02 ,  C09D123/0853 ,  C09D131/04 ,  C04B41/4861 ,  C04B28/02 ,  C08L2666/26 ,  C08L23/06 ,  C08L31/04

    摘要： The invention relates to an improvement in a process for imparting barrier properties to porous substrates, such as, concrete, masonry products, and wood products. The process comprises the steps of: applying an aqueous based sealing composition comprising a polymeric resin to said porous substrate, evaporating the water and forming a water repellent coating of said polymeric resin on said porous substrate. The improvement comprises: deriving the polymeric resin from an aqueous based polymer emulsion comprising a polymer comprised of emulsion polymerized units of vinyl acetate and ethylene, preferably with a carboxylic acid monomer, the polymer containing amorphous and crystalline ethylene segments and having: (a) a crystalline melting point (Tm) ranging from 35 to 110° C., preferably 50 to 100° C.; measured at a heat rate of 20° C./minute; and, (b) a tensile storage modulus of at least 1×105 dynes/cm2 at 115° C. measured at 6.28 rad/sec.

    摘要翻译： 本发明涉及对诸如混凝土，砖石制品和木制品的多孔基材赋予阻隔性能的方法的改进。 该方法包括以下步骤：将包含聚合物树脂的含水基密封组合物施加到所述多孔基材上，蒸发水并在所述多孔基材上形成所述聚合树脂的拒水涂层。 该改进包括：从含水基聚合物乳液衍生聚合物树脂，其包含由乙酸乙烯酯和乙烯的乳液聚合单元，优选与羧酸单体组成的聚合物，所述聚合物含有无定形和结晶的乙烯链段，并具有：（a） 结晶熔点（℃）为35〜110℃，优选为50〜100℃。 以20℃/分钟的加热速率测量; 和（b）以6.28rad / sec测量在115℃下的至少1×10 5达因/ cm 2的拉伸储能模量。

    Aqueous polymer emulsion-polyester polyol blend for reducing or eliminating flooding and floating in water-based two component polyurethane coatings
    5.
    发明授权
    Aqueous polymer emulsion-polyester polyol blend for reducing or eliminating flooding and floating in water-based two component polyurethane coatings 有权
    水性聚合物乳液 - 聚酯多元醇混合物，用于减少或消除水性双组分聚氨酯涂料中的溢流和漂浮

    公开(公告)号：US06395820B1

    公开(公告)日：2002-05-28

    申请号：US09439445

    申请日：1999-11-15

    申请人： Denise Luise Lindenmuth ,  Charles Raymond Hegedus ,  Frank Ralph Pepe

    发明人： Denise Luise Lindenmuth ,  Charles Raymond Hegedus ,  Frank Ralph Pepe

    IPC分类号： C08J300

    CPC分类号： C09D175/04

    摘要： A substantially solvent free, aqueous, pigmented, two component polyurethane-polyurea dispersion comprising: (a) an aqueous mixture of an acid-containing polymeric polyol and a polyol free of acid groups, wherein the mixture has an average hydroxyl functionality of at least 1.5 and an acid number between about 15 and 200; and an amine or a blend of amines having an average active hydrogen functionality of at least 1.5, the amine or blend of amines being present in a sufficient amount to substantially neutralize the acid-containing polymeric polyol; (b) one or more polyisocyanates; and (c) two or more different pigments; characterized by reducing or eliminating flooding of the pigments with (d) an aqueous polymer emulsion present in an amount sufficient to impart thixotropy to the mixture of (a) and (d).

    摘要翻译： 一种基本上无溶剂的含水颜料的双组分聚氨酯 - 聚脲分散体，其包含：（a）含酸聚合多元醇和不含酸基团的多元醇的含水混合物，其中该混合物的平均羟基官能度至少为1.5 和酸值在约15和200之间; 平均活性氢官能度至少为1.5的胺或胺的共混物，胺或胺的混合物以足够的量存在以基本上中和含酸的聚合多元醇;（b）一种或多种多异氰酸酯; （c）两种或更多种不同的颜料;其特征在于用（d）以足以赋予（a）和（d）的混合物触变性的量存在的聚合物水乳液来减少或消除颜料的淹水。