| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a polymeric ultraviolet absorber which is excellent in compatibility with resins and has bleed resistance, volatilization resistance, solvent (oil) extraction resistance, etc., and excellent ultraviolet absorbency, without deterioration of various performances such as strength properties of resins. <P>SOLUTION: The polymeric ultraviolet absorber is a copolymer including a monomer unit represented by the general formula (1) (wherein, R1 represents a hydrogen atom or 1-30C alkyl group, R2, R3, R4, and R5 represent identical or different hydrogen atoms or 1-4C alkyl groups, and X represents -O- or -OCO-). <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
