coating composition, coating, process for providing a surface coating, article, method for removing polluting gases from the environment, and use of a coating
ANN SARAH WAN,DARREN J. WATERS,JOHN L. EDWARDS,JOHN ROBB,KARL LOWRY
申请号：
BR112018010055
公开号：
BR112018010055A2
申请日:
2016.11.17
申请国别(地区):
BR
年份:
2018
代理人:
摘要：
The invention provides a coating composition suitable for use in forming a coating that can reduce the concentration of polluting gases in the environment, the coating composition comprising polymeric material together with mesoporous titanium oxide particles. the particles have a continuous outer convex surface and a particle diameter greater than or equal to 1 µm but less than or equal to 50 µm, and a specific concrete surface area of 30 m2 / g to 350 m2 / g, and a diameter of modal pore greater than or equal to 5 nm but less than or equal to 50 nm, and a pore size distribution such that 85% or more of the total pore volume is associated with pores with a diameter of 10 microns or less. the coating composition comprises from 0.01% to 10% by volume of said particles relative to the total volume of the coating composition and comprises from 5% to 99.99% by volume of polymeric material relative to the total volume of the coating composition. coating composition. The coating composition formed from said composition may be used for the removal of polluting gases, especially under conditions in which the coating is exposed to UV radiation from sunlight.a invenção provê uma composição de revestimento adequada para uso na formação de um revestimento que pode reduzir a concentração de gases poluentes no meio ambiente, sendo que a composição de revestimento compreende material polimérico juntamente com partículas de óxido de titânio mesoporosas. as partículas têm uma superfície convexa exterior contínua e um diâmetro de partícula maior ou igual a 1 µm, mas menor ou igual a 50 µm, e uma área de superfície específica de bet de 30 m2/g a 350 m2/g, e um diâmetro de poro modal maior ou igual a 5 nm, mas menor ou igual a 50 nm, e uma distribuição do tamanho de poro de modo que 85% ou mais do volume total do poro esteja associado a poros a um diâmetro de 10 mícrons ou menos. a composição de revestimento compreende de 0,01% a 10% em volume das ditas partículas, em relação ao volume
