TRAFFIC SIGNAL HOUSING AND ROAD SIGN OBTAINED USING HIGH-STRENGTH FIBRE COMPOSITE
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United States of America Patent
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Issued Date -
May 14, 2015
app pub date -
Apr 24, 2013
filing date -
May 7, 2012
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Abstract
Provided are a traffic signal housing and a road sign which are higher in weather resistance and lighter in weight as compared with conventional traffic signal housings and road signs using metal plates. A traffic signal housing and a road sign each made of a high-strength fiber composite in which a surface of a prepreg in which a thermoplastic resin has been combined with a sheet-shaped high-strength fiber including carbon fiber or basalt fiber has been coated with a thermosetting resin, wherein the prepreg is one prepared b thermally pressing a laminate in Which a sheet-shaped thermoplastic resin and said sheet-shaped high-strength fiber have been laminated together in a sandwich structure, are high in weather resistance to salt damage and so on, and moreover since they are lightweight, poles with reduced strength can be used therefor.
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