초록 ▼

A photocatalyst composition containing a substantially non-oxidizable binder which allows large amounts of photocatalytic particles to be adhered to a surface. Upon application to a surface, the composition dries or cures to form an adherent, abrasion-resistant, thermostable, and photocatalytic coat

A photocatalyst composition containing a substantially non-oxidizable binder which allows large amounts of photocatalytic particles to be adhered to a surface. Upon application to a surface, the composition dries or cures to form an adherent, abrasion-resistant, thermostable, and photocatalytic coating.

대표청구항 ▼

[ We claim:] [1.] A composition comprising:particles of a photocatalyst activated by light, said particles having a diameter of about 1-100 nm and a surface area of at least 30 m.sup.2 /g; said photocatalyst capable of catalyzing oxidation or reduction reactions:a binder for adhering said particles

[ We claim:] [1.] A composition comprising:particles of a photocatalyst activated by light, said particles having a diameter of about 1-100 nm and a surface area of at least 30 m.sup.2 /g; said photocatalyst capable of catalyzing oxidation or reduction reactions:a binder for adhering said particles to a surface, said binder consisting essentially of a substantially non-oxidizable polymer having a backbone sequence of 12 or more atoms, where no more than one in six backbone atoms is carbon, the binder consisting of less than 20 wt % oxidizable carbon and hydrogen atoms;wherein the particles are dispersed throughout said binder, and wherein the composition forms an abrasion-resistant, thermostable and adherent film when applied to a surface, the binder transmitting a substantial portion of activating light to activate the photocatalyst particles;said composition, when applied to a surface and in contact with an organic compound, being Effective, in the presence of activating light, to degrade at least a portion of said organic compound.