Normal temperature-curable hard coat composition

A normal temperature-curable hard coat composition consisting of:

• (A) a polysilazane compound having structures shown by the following formula (1)
• wherein R1 represents a hydrogen atom, or a group selected from an aliphatic hydrocarbon group having 1 to 6 carbon atoms, an aromatic hydrocarbon group having 6 to 12 carbon atoms, and an alkoxy group having 1 to 6 carbon atoms,
• each R1 is identical to or different from one another,
• the polysilazane compound contains at least one Si—H bond in one molecule,
• R2 represents a group selected from an aliphatic hydrocarbon group having 1 to 6 carbon atoms, an aromatic hydrocarbon group having 6 to 12 carbon atoms, and an alkoxy group having 1 to 6 carbon atoms, and
• each R2 is identical to or different from one another;
• (B) an alkoxysilane compound;
• and
• optionally, one or more selected from the group consisting of silica fillers, titanium dioxide fillers alumina fillers zirconium oxide fillers calcium carbonate fillers calcium silicate fillers, ferric oxide fillers, zinc oxide fillers, benzophenone ultraviolet absorbers, benzotriazole ultraviolet absorbers, triazine ultraviolet absorbers, organosiloxane oligomers containing at least two kinds of functional groups, organooxysilyl modified isocyanurate compounds and hydrolysis condensates thereof, silicone oils, and solvents;
• wherein a ratio of [a] the number of Si-H bonds from the polysilazane compound and [b] the number of alkoxy groups from the alkoxysilane compound is in a range of [b]/[a]=1.5 to 3;
• wherein normal temperature is 5 to 35° C.;
• wherein the alkoxysilane compound is selected from the group consisting of, 2-(3,4-epoxvcyclohexyl)ethiyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxvsilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropylmethyldiethoxysilane, 3-glycidoxvpropyltriethoxvsilane, p-styryltrimethoxysilane, N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane, N-2-(aminoethyl)-3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-triethoxysily, 1-N-(1,3-dimethyl-butylidene)propylamine, N-phenyl-3-aminopropyltrimethoxvsilane, tris(trimethoxysilylpropyl)isocyanurate3-ureidopropyltrialkoxysilane, 3-mercaptopropylmethyldimethoxysilane, 3-mercaptopropyltrimethoxvsilane, and 3-isocyanatepropyltriethoxysilane.