Method for manufacturing thermoplastic resin pre-impregnated fiber structure
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United States of America Patent
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Jan 7, 2014
Grant Date -
Oct 20, 2011
app pub date -
Jan 9, 2009
filing date -
Jan 9, 2009
priority date (Note) -
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Abstract
A process of manufacturing a fibrous article includes submerging a fiber substrate in a bath of first thermoplastic resin to impregnate the fiber substrate with the first thermoplastic resin; heating the fiber substrate until the fiber substrate becomes a thick continuous fiber substrate; cutting the thick continuous fiber substrate into units; stacking the fiber substrate units; pressing and heating the stacked fibrous structure units until a stacked fibrous structure is formed; heating a mold; conveying the stacked fibrous structure to the mold to melt; cooling the mold to shape the molten fibrous structure into a half-finished article; removing the half-finished article out of the mold; eliminating burrs and sharp edges of the half-finished article; conveying the half-finished article to the mold; and uniformly applying a molten second thermoplastic resin on an inner surface of the half-finished article by injection molding to produce the finished fibrous article.
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