Fabric of thermoplastic fiber and continuous reinforcing fiber
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United States of America Patent
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Mar 2, 1993
Grant Date -
N/A
app pub date -
Aug 31, 1990
filing date -
Aug 31, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a fabric of thermoplastic fibers and continuous reinforcing fibers in which the shrinkage of the thermoplastic fibers is minimal, thus providing a product well-suited for processing as a thermoplastic composite prepreg. The thermoplastic fibers have a melting point lower than that of the reinforcing fibers, and are preheated at a temperature of from 50.degree. to 15.degree. C. below the melting point of the thermoplastic material before being processed to form the fabric. Fabrics of thermoplastic fibers and reinforcing fibers according to the present invention can be used in applications where sheets of fabrics must be drapeable, so that when subjected to cold forming they conform to the mold for the thermoforming process. Fabrics according to the present invention are especially useful in applications where the use of high-grade, fiber-reinforced plastics is advantageous. Examples of applications include the automotive industry, sporting goods, domestic articles, housings for electronic apparatus, satellite dishes, the aircraft industry, shipbuilding, house construction, furniture, vessels, and helmets.
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