Patent ID: 9234310
Filing Date: 2016-01-12
CPC Classification: C11D,D06M,Y10T

Claim Text:
1. A method for treating a fabric for ultraviolet radiation protection, enhanced resistance to degradation, and enhanced resistance to fire comprising the steps of: suspending zinc oxide nanoparticles in a mixture of an aqueous buffer and an organosilane or phosphonate with a reactive group, adding multidentate ligand to form a durable reactive layer on the zinc oxide nanoparticles, and adding an oxide, alkoxide, or salt of a metal other than zinc to form a surface layer of an oxide other than zinc oxide on the zinc oxide nanoparticles; collecting the zinc oxide nanoparticles by centrifugation; washing the collected zinc oxide nanoparticles; re-suspending the zinc oxide nanoparticles in a buffer; adding the zinc oxide nanoparticles in the buffer to a solution of 3-glycidyloxypropyl-trimethoxysilane; placing a fabric in the mixture of the zinc oxide particles and 3-glycidyloxypropyl-trimethoxysilane; curing the fabric; washing the fabric; and exposing the fabric to ultraviolet radiation.