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1. (WO2018181256) BENZOTRIAZOLE-BASED (CO)POLYMER, ULTRAVIOLET-ABSORBING COATING MATERIAL CONTAINING SAME, AND FILM COATED WITH SAID COATING MATERIAL

Pub. No.:    WO/2018/181256    International Application No.:    PCT/JP2018/012309
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 28 01:59:59 CEST 2018
IPC: C08F 20/36
B32B 27/00
C09D 5/32
C09D 179/04
Applicants: SHIN-NAKAMURA CHEMICAL CO., LTD
新中村化学工業株式会社
Inventors: SHIMENO Takahito
〆野 孝仁
Title: BENZOTRIAZOLE-BASED (CO)POLYMER, ULTRAVIOLET-ABSORBING COATING MATERIAL CONTAINING SAME, AND FILM COATED WITH SAID COATING MATERIAL
Abstract:
Provided is a benzotriazole-based (co)polymer obtained by polymerizing a starting material comprising a resorcinol type benzotriazole monomer of the general formula. The benzotriazole-based (co)polymer is a polymer having little coloration and has excellent performance in absorbing ultraviolet light having wavelengths in the range of 300-400 nm, which corresponds to the spectral irradiance distribution of the ultraviolet components of ground sunlight arriving from the sun, in particular, in absorbing ultraviolet light having wavelengths in the range of 330-400 nm, where the integrated energy is high. [Preferably, R1 and R2 are each H, R3 is an alkyl, and R4 is H, an alkyl, an alkyacryloyloxyalkyl, or a methacryloyloxyalkyl.]