BENZOTRIAZOLE DERIVATIVE COMPOUND

Abstract

Provided are benzotriazole derivative compounds of the general formula that are novel compounds capable of strongly absorbing light in the ultraviolet range, particularly 300-330 nm, while strongly absorbing light in the visible light short-wavelength range up to around 450 nm and being used suitably as a light absorber having high light fastness with a light-blocking function over an extended period of time. [Preferably, R.sub.1 is a hydrogen atom or alkyl group, R.sub.2 is a C1-8 alkyl group, R.sub.3 is a hydrogen atom, alkyl group, acryloyloxyalkyl group, or methacryloyloxyalkyl group]

Claims

1. A benzotriazole derivative compound represented by the following general formula (1): ##STR00011## wherein in general formula (1), R.sub.1 represents a hydrogen atom or an alkyl group whose carbon number is 1 to 8, R.sub.2 represents a hydrogen atom, an alkyl group whose carbon number is 1 to 18, a carboxyalkyl group whose alkyl carbon number is 1 to 7, an alkyl oxycarbonylalkyl group of which a total of each alkyl carbon number is 2 to 15,a hydroxyalkyl group whose carbon number is 1 to 8, an alkylcarbonyloxyalkyl group of which a total of each alkyl carbon number is 2 to 15, an acryloyloxyalkyl group whose alkyl carbon number is 1 to 4, an acryloyloxyhydroxyalkyl group whose alkyl carbon number is 1 to 4, a methacryloyl oxyalkyl group whose alkyl carbon number is 1 to 4, or a methacryloyl oxyhydroxyalkyl group whose alkyl carbon number is 1 to 4, R3 represents a hydrogen atom or an alkyl group whose carbon number is 1 to 18, a carboxyalkyl group whose alkyl carbon number is 1 to 7, an alkyloxycarbonylalkyl group of which a total of each alkyl carbon number is 2 to 15, phenyl group, tolyl group, an acryloyl oxyalkyl group whose alkyl carbon number is 1 to 4, an acryloyloxyalkyl group whose alkyl carbon number is 1 to 4, an acryloyloxyhydroxyalkyl group whose alkyl carbon number is 1 to 4, a methacryloyloxyalkyl group whose alkyl carbon number is 1 to 4, a methacryloyloxyhydroxyalkyl group whose alkyl carbon number is 1 to 4.

2. The benzotriazole derivative compound according to claim 1, wherein R.sub.1 in the above general formula (1) is a hydrogen atom, or an alkyl group whose carbon number is 1 to 8, wherein R.sub.2 in the above general formula (1) is an alkyl group whose carbon number is 1 to 8, and wherein R.sub.3 in the above general formula (1) is a hydrogen atom, an alkyl group whose carbon number is 1 to 8, an acryloyl oxyalkyl group whose alkyl carbon number is 1 to 2, or a methacryloyl oxyalkyl group whose alkyl carbon number is 1 to 2.

3. The benzotriazole derivative compound according to claim 1, wherein R.sub.1 in the above general formula (1) is a hydrogen atom, or an alkyl group whose carbon number is 1 to 8, wherein R.sub.2 in the above general formula (1) is an alkyl group whose carbon number is 1 to 8, and wherein R.sub.3 in the above general formula (1) is an acryloyl oxyalkyl group whose alkyl carbon number is 1 to 2 or a methacryloyl oxyalkyl group whose alkyl carbon number is 1 to 2.

4. A light-absorber including the benzotriazole derivative compound according to claim 1.

5. A light-absorbing resin composition wherein the benzotriazole derivative compound according to claim 1 is compounded in a resin.

Description

BRIEF EXPLANATION OF DRAWINGS

[0098] FIG. 1 shows UV-visible absorption spectrum of a compound (a).

[0099] FIG. 2 shows UV-visible absorption spectrum of a compound (b).

[0100] FIG. 3 shows UV-visible absorption spectrum of a compound (c).

[0101] FIG. 4 shows UV-visible absorption spectrum of a compound (d).

[0102] FIG. 5 shows UV-visible absorption spectrum of a compound (e).

[0103] FIG. 6 shows UV-visible absorption spectrum of a compound (f).