Serkan Unal,Yuliya Berezkin,Peter D. Schmitt,Karl W. Haider,Robert N. Hunt
申请号：
US13278274
公开号：
US20130101540A1
申请日:
2011.10.21
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The present disclosure is directed to aqueous dispersions comprising polyurethane and nanoparticles, and processes for preparing the aqueous dispersions. The dispersions comprise aqueous polyurethane dispersions having nanoparticles covalently incorporated into the polymer matrix. The dispersions are prepared by reacting isocyanate groups present on the polyurethane chain ends with free amine groups on a hydroxy- or amino-functionalized nanoparticle to covalently attach the polyurethane and the nanoparticle through urethane or urea linkages, respectively.
