Coating material composition having photocatalytic activity

Details Coating material composition having photocatalytic activity Coating material composition having photocatalytic activity

2007-11-20

2007-11-20

Moore, Margaret G. (Department: 1712)

Compositions: coating or plastic

Coating or plastic compositions

Alkali metal silicate containing

C106S635000

Reexamination Certificate

active

10474938

ABSTRACT:
Disclosed herein is a photocatalytic coating composition that enables control of refractive index, film density and hydrophilicity and gives a film with improved strength and adhesion. The photocatalytic coating composition comprises: (1) an alkali silicate aqueous solution having: (A) a molar ratio of silicon to an alkali (SiO2/(A2O+B) (A: alkali metal, B: NH3)) in the range of 4 to 30; and (B) a silicon concentration in terms of oxide (SiO2concentration) in the range of 6.8 to 30% by weight; and (2) a photocatalytic compound.

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