| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 12.99 |
| PATENT ASSIGNEE | Minnesota Mining & Mfg (St. Paul; Minn) |
| PATENT CLAIMS |
Coating compn comprising - Inorganic metal oxide sol capable of forming a porous inor ganic metal oxide network which provides anti-reflective properties to a substrate - Surfactant having soly. in water < 10% at 23C & comprised of hydrophobic & hydrophilic anionic group; the hydrophi lic anionic group comprising -OSO3 anion; wherein the hy drophobic group comprises hydrocarbon chain comprising > 4 C Wherein the coating compn when coated on one side of light transmissive substrate & dried provides a coated substrate with - Porous inorganic metal oxide network of uniform thickness - Drop diam. > 4 mm when tested in accordance with the Wetting Test described herein - % transmission at 550 nm > 20% greater than that of the uncoated substrate |
| PATENT PHOTOCOPY | Available on request |
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