公开(公告)号：EP3564284A1

公开(公告)日：2019-11-06

申请号：EP16925084.2

申请日：2016-12-30

申请人： Wanhua Chemical Group Co., Ltd. ,  Wanhua Chemical (Guangdong) Co., Ltd.

发明人： JI, Xueshun ,  JIN, Yunquan ,  ZHOU, Tianwen ,  ZHAO, Weiguo ,  WANG, Haimei ,  LIU, Yunling ,  WANG, Zhen ,  ZHANG, Bin ,  CAO, Yuyang ,  SUN, Jiakuan

IPC分类号： C08G18/66 ,  C08G18/44 ,  C08G18/42 ,  C08G18/48 ,  C08G18/32 ,  C08G18/12 ,  C09D175/08 ,  C09D175/06 ,  C09J175/08 ,  C09J175/06 ,  C08J3/03

摘要： A self-crosslinkable polyurethane or polyurethane-urea aqueous dispersion, a preparation method therefor, and a use thereof. Side chains of the polyurethane or polyurethane-urea contain non-sterically-hindered siloxy groups. During the drying and activation of the aqueous dispersion, the siloxys in the side chains are hydrolyzed and crosslinked with each other to increase the cross-linking density, significantly improving the heat resistance, the humidity resistance, and other properties of an adhesive obtained therefrom. The aqueous dispersion itself has a good stability. In addition, an application system based thereon has an excellent stability and a long storage time. The aqueous dispersion is suitable for the preparation of high quality paints and sealants, especially adhesives.