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AssigneeSumitomo Chemical Company, Limited
InventorsShuji Kitamura, Kiyohiko Nakae, Haruo Hayashida, Seiichi Shibata
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The present invention provides an oxide sol hardened by the irradiation of actinic rays such as UV ray, electron ray, .gamma. ray, X ray etc., by heating or by using a catalyst. Said oxide sol comprises not less than 20% by weight of an oxide such as SiO.sub.2, Al.sub.2 O.sub.3 or the like in a dispersion medium containing at least 80% by mole of a reactive monomer such as acrylic acid, its esters, .alpha.-substituted acrylic acid esters, etc. These oxide sols have a good coating property and stable compatibility with organic solvents and are useful as modifiers for resins, binders for ceramics, thickening agents for cosmetics, coating agents for paper, antistatic agents for fabrics.
A silica or alumina sol comprising 20% to 70% by weight of silica or alumina dispersed in a medium comprising 80 to 100 mole % of a reactive monomer having a polymerizable unsaturated bond and 20 to 0 mole % of water or methanol.
Dependencies are inferred from the claim text.