阅读说明：本技术 用于保水应用的亲水性聚氨酯泡沫 (Hydrophilic polyurethane foams for water retention applications ) 是由 C·舍恩内 Y·N·斯里瓦斯塔瓦 于 2019-09-17 设计创作，主要内容包括：公开了一种亲水性聚氨酯泡沫,所述亲水性聚氨酯泡沫从具有指定异氰酸酯和氧乙烯含量的基于二苯甲烷的准预聚物产生。所述泡沫具有异常良好的保水能力,即使在压缩力下也如此。以水饱和时,它们也显示出至多中等的溶胀。所述泡沫可用作水容纳系统(如绿色屋面或蓝色屋面系统)的层。(Disclosed is a hydrophilic polyurethane foam produced from a diphenylmethane-based quasi-prepolymer having a specified isocyanate and oxyethylene content. The foam has exceptionally good water retention even under compressive forces. They also show at most moderate swelling upon saturation with water. The foam may be used as a layer of a water containment system, such as a green or blue roofing system.)