Liquids and viscoelastic material repellent and anti-biofouling coatings

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United States of America Patent

PATENT NO 11485863
APP PUB NO 20210222014A1
SERIAL NO

17202512

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Abstract

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A process for preparing a repellant smooth surface includes applying a coating composition onto a smooth surface of a substrate having hydroxyl functional groups thereon and an average roughness Ra of less than 4 μm. The coating composition includes: (i) a polymerizable silane or siloxane or both selected from the group consisting of dimethyldimethoxysilane, dimethoxy-methyl(3,3,3-trifluoropropyl)silane, dimethoxy(methyl)octylsilane, diethoxydimethylsilane, (ii) a solvent and (iii) an acid catalyst. The process further includes polymerizing the silane or siloxane or both from the hydroxyl functional groups on the smooth surface of the substrate to form a chemical layer of graft polymers having ends anchored to the smooth surface and applying a lubricant coating over the formed chemical layer to adhere and maintain the lubricant on the smooth surface and form a lubricant-entrenched smooth surface as the repellant smooth surface.

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Patent Owner(s)

Patent OwnerAddress
THE PENN STATE RESEARCH FOUNDATION304 OLD MAIN UNIVERSITY PARK PA 16802

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wang, Jing University Park, US 1745 13464
Wong, Tak-Sing University Park, US 17 22

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