Sandwich composite material using an air-laid process and wet glass
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United States of America Patent
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N/A
Issued Date -
Jun 29, 2006
app pub date -
Dec 29, 2004
filing date -
Dec 29, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A sandwich composite material formed of a core layer positioned between first and second skin layers is provided. Either the core layer or the first and second skin layers are formed of a composite material that includes reinforcement fibers and organic fibers. Preferably, the reinforcing fibers are wet use chopped strand glass fibers. The composite material may be formed by opening the reinforcement fibers, blending the reinforcement and organic fibers, forming the reinforcement and organic fibers into a sheet, and bonding the sheet. The core layer and first and second skin layers may be attached by adhesives or resin tie layers. The sandwich composite material may include a facing layer affixed to an exposed major surface of one or both of the first and second skin layers. The strength, stiffness, and load deflection of the sandwich composite material may be modified by changing the amount and/or type of fibers present.
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