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AUTOMOTIVE MOLDED-IN-COLOR THERMOPLASTIC POLYOLEFIN WITH CLEAR COATING FOR PAINT REPLACEMENT AND HIGH GLOSS APPLICATIONS
AUTOMOTIVE MOLDED-IN-COLOR THERMOPLASTIC POLYOLEFIN WITH CLEAR COATING FOR PAINT REPLACEMENT AND HIGH GLOSS APPLICATIONS
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机译：汽车塑料型热塑性聚烯烃，具有透明涂料的涂料更换和高光泽应用
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摘要
Molded-in-color thermoplastic polyolefin (TPO) compositions useful for making automotive components, such as injection molded parts, as well as other articles of manufacture are described. The molded-in-color composition has a ΔE* value≤2.0 (compared to a painted color master), a gloss measured at 60° from about 76 to about 90 GU, a density ranging from about 0.9 to about 0.97 g/cm3, a melt mass flow rate from about 15 to about 40 g/10 min (ASTM D 1238, 230° C./2.16 kg), a flexural modulus between about 600 to about 2000 MPa, and an as-molded shrinkage between about 0.6% and about 1.4%. The compositions can be used to prepare molded-in-color components that can undergo additional clear coating steps as required by the automotive application. The clear coated molded-in-color components have a gloss measured at 20° from about 85 to about 95 GU and a gloss retention after mar between about 85% and about 93%.
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机译：描述了用于制造用于制造汽车部件的彩色热塑性聚烯烃（TPO）组合物，例如注塑部件，以及其他制品。 模塑成型组合物具有ΔE*值≤2.0（与涂漆的颜色主体相比），在60°以约76至约90μg测量的光泽度，密度范围为约0.9至约0.97g / cm 3， 熔体质量流量为约15至约40g / 10min（ASTM D 1238,230℃/ 2.16千克），弯曲模量在约600至约2000mPa之间，并且在约0.6％之间的成型收缩率 约1.4％。 该组合物可用于制备可以根据汽车应用要求进行额外的透明涂层步骤的模塑组件。 透明的涂覆的模塑含有含有光泽度在20°以约85至约95μg的光泽度，并在3月后的光泽保留在约85％和约93％之间。
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