Method of in-mold coating
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United States of America Patent
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Jan 30, 2001
Grant Date -
N/A
app pub date -
Jan 25, 1999
filing date -
Jan 27, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method of in-mold coating, comprising steps of forming a molded product by applying a clamping pressure to a mold to mold a synthetic resin molding material in the mold according to an injection molding method, an injection compression molding method or an injection press molding method, then coating a surface of the molded product with a coating material in the mold, wherein the coating material is injected in such a state that the molded product has cured or solidified to such an extent that the surface of the molded product can withstand an injection pressure and a flow pressure of the coating material, and the clamping of the mold after injection of the coating material is carried out under certain multistagewise variable clamping pressures with certain clamping pressure transitional periods of time.
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