Resin molding and decorative sheet

By using UV absorbers and light stabilizers with specific pKa values and an acid-modified resin layer, the decorative sheets achieve enhanced weather resistance and durability by preventing decomposition and adhesion loss.

JP2024170665AActive Publication Date: 2024-12-10TOPPAN HOLDINGS INC
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Patent Information

Application Number
JP2024161598
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-19
Publication Date
2024-12-10
Estimated Expiration
2037-06-02

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Abstract

To provide a resin molding and a decorative sheet which are excellent in weather resistance.SOLUTION: A decorative sheet 1 has a resin molding as a protective layer 3, and the resin molding contains an ultraviolet absorber having a pKa at the time of irradiation with light of -4.5 to -5.5, and a light stabilizer having a pKa of 3.0 to 7.0. Contents of the ultraviolet absorber and the light stabilizer are 3.0 pts.wt. or less per 100 pts.wt. of the resin molding, respectively. The ultraviolet absorber has a triazine skeleton.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Decorative sheet

    JP2003276138A

  • Woody synthetic resin composition having improved weather resistance and molded body thereof

    JP2009209205A

  • Decorative sheet

    JP2010179491A

  • Method for producing mildewproof resin composition, bathroom or bathtub good and bathroom or bathtub handrail

    JP2014062149A

  • Polyolefin resin composition and molded article using the same

    JP2018062565A