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US 6,783,845 B2Granted
Anti-fogging coating material, anti-fogging coating, and anti-fogging optical member
AssigneeCanon Kabushiki Kaisha
InventorsZuyi Zhang, Teigo Sakakibara, Masayuki Yamada, Yoshinori Kotani
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Abstract
An anti-fogging coating material is disclosed which comprises a phosphoric acid compound binder; and oxide particles having an average particle diameter of 1 to 300 nm mixed with the phosphoric acid compound binder and provides an anti-fogging coating with a high hydrophilic property and a high water absorption property, capable of retaining the high hydrophilic property for a long period of time.
Claims10
An anti-fogging coating material for forming a transparent anti-fogging coating film, comprising
- a phosphoric acid compound binder;
- and
- oxide particles having an average particle diameter of 1 to 300 nm mixed and cross-linked with the phosphoric acid compound binder, wherein a weight ratio on solids basis for the phosphoric acid compound binder and the oxide particles is 0.12/0.88 to 0.5/0.5.
Dependencies are inferred from the claim text.