公开(公告)号：US5551632A

公开(公告)日：1996-09-03

申请号：US472303

申请日：1995-06-07

申请人： Frederick A. Kish ,  Herbert S. Golinkin ,  Daniel C. Abt

发明人： Frederick A. Kish ,  Herbert S. Golinkin ,  Daniel C. Abt

IPC分类号： E01B9/68 ,  E01B9/62

CPC分类号： E01B9/681 ,  E01B9/683 ,  E01B9/685

摘要： In a railroad track comprising a railroad rail having a lower flange, a railroad tie made from concrete, and a polyurethane pad mounted between the lower flange of the railroad rail and an upper surface of the railroad tie, a particulate layer is interposed between the polyurethane pad and the railroad tie and comprises particles bonded to the polyurethane pad. Preferably, the bonded particles are polycarbonate, acrylic, or nylon particles, either granules or fibers. Alternatively, the bonded particles are particles of quartz, silica sand, silicon carbide, or aluminum oxide. An adhesive layer is interposed between the polyurethane pad and the railroad tie, comprises a methacrylate ester composition, and is bonded to particles among the bonded particles and to the railroad tie, whereby the polyurethane pad and the railroad tie are bonded to one another via the particulate and adhesive layers.

摘要翻译： 在包括具有下凸缘的铁路轨道的铁路轨道，由混凝土制成的铁路连接件以及安装在铁路轨道的下凸缘和铁路连接件的上表面之间的聚氨酯垫片之间，在聚氨酯 垫和铁路系带，并且包括结合到聚氨酯垫的颗粒。 优选地，粘合颗粒是聚碳酸酯，丙烯酸或尼龙颗粒，颗粒或纤维。 或者，粘合颗粒是石英，硅砂，碳化硅或氧化铝的颗粒。 粘合剂层介于聚氨酯垫和铁路连接件之间，包括甲基丙烯酸酯组合物，并且粘合到粘结颗粒和铁路连接件之间的颗粒上，由此聚氨酯垫和铁路连接件通过 颗粒和粘合剂层。