Methods of Using a Non-Photocatalytic Porous Coating as an Antisoiling Coating
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United States of America Patent
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Issued Date -
Dec 15, 2011
app pub date -
Jul 1, 2009
filing date -
Jul 1, 2008
priority date (Note) -
Abandoned
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Abstract
The present invention relates to the use as an antisoiling coating of a porous coating comprising a polysiloxane matrix and a porous volume such that the potential filling ratio of the total volume of said coating by oleic acid is at least 25% by volume, having a porosity rate ranging from 25 to 70% by volume and having no photocatalytic properties. The antisoiling porous coating is self-cleaning, easy to clean and can be regenerated by simple washing. It is mainly intended for use in ophthalmic optics, and proves to be very effective against sebum. In the preferred embodiment of the invention, this coating has a mesoporous structure.
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