公开(公告)号：US20160031765A1

公开(公告)日：2016-02-04

申请号：US14763198

申请日：2014-04-24

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Avery L Watkins ,  Juan Carlos Medina ,  Dwight D. Latham

IPC: C05G3/00 ,  C05C9/00 ,  C09D175/04

CPC classification number: C05G3/0029 ,  C05C9/00 ,  C08G18/4854 ,  C08G18/6688 ,  C08G18/7664 ,  C08K9/10 ,  C09D175/04 ,  C08L75/08

Abstract: Embodiments relate to a polyurethane coating film that has improved water barrier properties combined with mechanical strength. According to embodiments, a polyurethane encapsulate includes a polyurethane film that is a reaction product of an aromatic isocyanate and a polyol, and the polyol includes a butylene oxide based polyether polyol in an amount of at least 35 wt % based on a total weight of the polyol. The polyurethane encapsulate further includes a particulate material that is enclosed by the polyurethane film.

Abstract translation: 实施例涉及具有改善的阻水性能和机械强度的聚氨酯涂膜。 根据实施方案，聚氨酯封装包括作为芳族异氰酸酯和多元醇的反应产物的聚氨酯膜，多元醇包含基于总重量为至少35重量％的环氧丁烷基聚醚多元醇 多元醇。 聚氨酯封装还包括由聚氨酯膜封闭的颗粒材料。