PROCESS FOR COATING A SOLID, WATER-INSOLATED PRIVATE MATERIAL WITH A METAL OXIDE, COATED PARTICULATED MATERIALS, METHODS TO TREAT A SURFACE CONDITION ON AN INDIVIDUAL, AND TO PREVENT, REDUCE, OR ELIMINATE, OR ELIMINATE, USE OF COATED PRIVATE MATERIAL
OFER TOLEDANO,HAIM BAR-SIMANTOV,NISSIM BILMAN,LEORA SHAPIRO,RAED ABU-REZIQ,SRIKANTH SRIADIBHATLA,WILLIAM T. SOMMER
申请号：
BRPI0808160
公开号：
BRPI0808160A2
申请日:
2008.02.03
申请国别(地区):
BR
年份:
2014
代理人:
摘要：
The invention relates to a process for coating a solid, water-insoluble particulate matter, with a metal oxide comprising: (a) contacting the solid, water-insoluble particulate matter with an ionic additive and an aqueous medium to obtain a dispersion of said particulate matter having positive charges on its surface； (b) subjecting the particulate matter to a coating procedure comprising precipitating a metal oxide salt onto the surface of the particulate matter to form a metal oxide layer thereon to thereby obtain particulate matter coated by a metal oxide coating layer； (c) repeating step (b) at least 4 more times； and (d) aging said coating layer. The invention further relates to particles comprising a particulate matter coated by a metal oxide layer, to a use of the particles for topical administration, and to a method for preventing, reducing, or eliminating pests at a locus, using the particles.
