发明授权
EP1434676B1 OPTIMIZATION OF IN-MOLD COATING INJECTION MOLDED THERMOPLASTIC SUBSTRATES 有权
注射IMC-涂覆工艺的改进模制的热塑性SUBSTRATES

OPTIMIZATION OF IN-MOLD COATING INJECTION MOLDED THERMOPLASTIC SUBSTRATES
摘要:
The present invention is a process for producing an injection-molded thermoplastic workpiece having a thermoset coating bonded thereto, comprising the steps of introducing in three stages into a closed mold a thermoplastic material, such as a polyolefin, heated to a temperature above its melting point and molding said material to form o workpiece; cooling the workpiece to a temperature less than its melt temperature introducing a thermoset coating composition into the closed mold to cover at least a portion of a surface of the workpiece. The mold is then opened and the workpiece is removed after the coating composition has at least partially cured. The invention is also directed to a molded article made by the described process.
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