申请人:BORAL IP HOLDINGS (AUSTRALIA) PTY LIMITED
公开号:US10030126B2
公开(公告)日:2018-07-24
Polyurethane composites and methods of preparation are described herein. The polyurethane composites can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols, (b) a particulate filler having a bulk density of 1 g/cm3 or greater, (c) optionally a fiber material, and (d) a lightweight filler having a bulk density from 0.01 g/cm3 to less than 1 g/cm3. In some examples, the lightweight filler can be selected from expanded perlite, expanded clay, foamed glass, and combinations thereof. Articles such as building materials comprising the polyurethane composites are also disclosed.
本文描述了聚氨酯复合材料及其制备方法。聚氨酯复合材料可包括:(a) 由以下物质反应形成的聚氨酯:(i) 选自二异氰酸酯、多异氰酸酯及其混合物组的一种或多种异氰酸酯;(ii) 一种或多种多元醇;(b) 体积密度为 1 g/cm3 或更大的颗粒填料;(c) 可选的纤维材料;(d) 体积密度为 0.01 g/cm3 至小于 1 g/cm3 的轻质填料。在某些例子中,轻质填料可以选自膨胀珍珠岩、膨胀粘土、发泡玻璃及其组合。此外,还公开了由聚氨酯复合材料组成的建筑材料等物品。