JP2011136846A5 - - Google Patents

Claims (6)

A glass plate, and an ultraviolet shielding film formed on the glass plate,
The ultraviolet shielding film, together with silicon oxide,
As an ultraviolet shielding component, it contains fine particles of organic compound A that has two or more functional groups represented by the following formula (1) in the molecule and is solid at room temperature,
A glass article having ultraviolet shielding ability, wherein the fine particles have an average particle size of 150 nm or less.

Here, A _{1 to} A ₅ are each independently a hydrogen atom, a hydroxyl group, a linear or branched alkyl group having 1 to 20 carbon atoms, or a functional group represented by the following formula (2). _At least one of _{1 to} A ₅ is a functional group represented by the following formula (2).

The glass article according to claim 1, wherein the organic compound A has two or more functional groups represented by the following formula (3) in the molecule.

Here, R ₁ is a linear or branched alkyl group having 1 to 20 carbon atoms.   The glass article according to claim 2, wherein the organic compound A has a structural unit in which two functional groups represented by the formula (3) are bonded by an alkylene group having 3 or less carbon atoms. The glass article according to any one of claims 1 to 3 , wherein the ultraviolet transmittance TUV380 calculated according to ISO9050 (1990 version) is 2% or less. The glass article according to any one of claims 1 to 4 , wherein the light transmittance at a wavelength of 550 nm exceeds 70%. The glass article according to any one of claims 1 to 5 , wherein the ultraviolet shielding film further contains an organic compound B corresponding to at least one selected from a polyether compound, a polyol compound, polyvinylpyrrolidones, and polyvinylcaprolactams.