| 摘要 |
To provide a transparent resin molded product with less yellowing due to thermal deterioration of a dispersant by melting and kneading during molding process, and having excellent visible light transmittance and excellent heat ray shielding function. Then, a high heat resistant masterbatch is provided, which is used for manufacturing a heat ray shielding transparent molded resin, comprising: a thermoplastic resin; composite tungsten oxide particles expressed by a general formula WO x (satisfying 2.45 ‰¤ X ‰¤ 2.999) and/or composite tungsten oxide particles expressed by a general formula M Y WO Z (satisfying 0.1 ‰¤ Y ‰¤ 0.5, 2.2 ‰¤ Z 3.0) and having a crystal structure of hexagonal crystal; and a high heat resistant dispersant having a thermal decomposition temperature of 230°C or more, satisfying a range of 10 ‰¥ [weight of the high heat resistant dispersant/(weights of tungsten oxide particles and/or composite tungsten oxide particles)] ‰¥ 0.5. |
