申请人:THE DOW CHEMICAL COMPANY
公开号:EP0149028A2
公开(公告)日:1985-07-24
Polymer concrete compositions are made from norbornyl modified unsaturated polyesteramide compositions. The curable concrete composition contains 2 to 20 percent by weight of the polyesteramide composition and 98 to 80 percent by weight of an aggregate such as sand, gravel, silica flour, etc. The polyesteramide composition contains norbornyl modified polyesteramide, ethylenically unsaturated monomers, such as styrene with or without a vinyl reactive additive. The polyesteramide can be further modified to' contain a copolymerized polyether polyol having a function- arty of three or more, a copolymerized poly(2-alkyl-2-oxazoline) or a copolymerized carboxylated rubber. The vinyl reactive additive can be a vinyl ester resin or a vinyl terminated urethane oligomer: When cured, the curable concrete composition gives a polymer concrete with better tensile and compressive strength with the advantage that the composition cures under water and in the presence of moisture.
聚合物混凝土组合物由降冰片烷基改性的不饱和聚酯酰胺组合物制成。可固化混凝土组合物含有 2%至 20%(按重量计)的聚酯酰胺组合物和 98%至 80%(按重量计)的骨料,如砂、砾石、硅粉等。聚酯酰胺组合物含有降冰片烷基改性聚酯酰胺、乙烯基不饱和单体,如苯乙烯,可添加或不添加乙烯基反应添加剂。聚酯酰胺还可进一步改性为含有官能度为 3 或 3 以上的共聚聚醚多元醇、共聚聚(2-烷基-2-噁唑啉)或共聚羧基橡胶。乙烯基活性添加剂可以是乙烯基酯树脂或乙烯基端聚氨酯低聚物:固化后的混凝土组合物具有更好的抗拉强度和抗压强度,同时还具有在水中和潮湿环境下固化的优点。