Method of forming a coating layer on the surface of a molded product within a mold
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United States of America Patent
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Nov 16, 2010
Grant Date -
Apr 13, 2006
app pub date -
Nov 17, 2005
filing date -
Jul 27, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An in-mold coating apparatus providing a mold having a specifically formed auxiliary cavity and an in-mold coating formation method which employs said mold, so that it is possible to prevent a coating material from leaking out of the mold, thereby shortening the molding formation cycle, and making it possible to manufacture a molded product having a stabilized quality. In addition, by using a mold having a specifically shaped sub-cavity, there is provided a still further in-mold coating formation method which can keep mold temperature at a relatively low value, cause the coating material to cure at a predetermined temperature and within a predetermined time period thereby shortening the molding formation cycle, improving the productivity, improving the physical properties of a coating layer, thus obtaining a good molded product.
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