Karen Kay Kalla,Matthew David Butts,Darryl Stephen Williams,Sarah Elizabeth Genovese
申请号：
US14736331
公开号：
US09469545B2
申请日:
2015.06.11
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Methods for making comprising hollow silica particles from a composition comprising a silicon-containing compound selected from the group consisting of tetraalkoxysilanes, trialkyloxysilanes and derivatives thereof, dialkoxysilanes and derivatives thereof, alkoxysilanes and derivatives thereof, silicone oligomers, oligomeric silsesquioxanes and silicone polymers distributed over a polymer template core that is eliminated from the particle in a two-stage heating process. The particles of the present invention have a substantially uniform particle size and exhibit low permeability to liquids.
