申请人:Evoco Ltd.
公开号:US10934384B1
公开(公告)日:2021-03-02
A polyurethane elastomer composition of (a) an organic diisocyanate, (b) a polyester resin; (c) a chain extender comprised of a polyhydric alcohol, (d) a crosslinker, (e) a plasticizer, (f) a surfactant, (g) a blowing or foaming agent, and (h) an optional dye; and where the elastomer has, for example, a hardness value of, for example, from about 20 Asker C to about 60 Asker C, a tensile strength of, for example, from about 1 MPa to about 10 MPa, a resilience of, for example, from about 30 percent to about 60 percent, an elongation at break of from about 150 percent to about 700 percent, and a tear strength of, for example, from about 2 Newtons/millimeters2 to about 4 Newtons/millimeters2.
一种聚氨酯弹性体组合物,由以下物质组成:(a) 有机二异氰酸酯;(b) 聚酯树脂;(c) 由多元醇组成的扩链剂;(d) 交联剂;(e) 增塑剂;(f) 表面活性剂;(g) 发泡剂;(h) 任选染料;例如,弹性体的硬度值从约 20 阿氏摄氏度到约 60 阿氏摄氏度,拉伸强度从约 1 兆帕到约 10 兆帕,回弹率从约 30%到约 60%,断裂伸长率从约 150%到约 700%,撕裂强度从约 2 牛顿/毫米2 到约 4 牛顿/毫米2。