Fiber-reinforced foamed resin structural composite materials and methods for producing composite materials
OwnerC.K. Hari Dharaninventor
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Abstract
A method of continuously producing fiber-reinforced foamed resin structural composite materials is described. One embodiment of the method includes providing a foamable resin between fiber-reinforced layers within a cooled die. Another embodiment of the method includes providing elements through a fiber-reinforced foamed resin composite material for communicating information and/or fluids. Thus, for example, optical fibers, electrical conductors, or water or air ducts may be included through the composite material. The material is inexpensive to produce and can be recycled.
Claims41
A method of producing a fiber-reinforced foamed composite material, said method comprising:
- translating two layers through a heated device, where each of said two layers includes a fiber-reinforced thermoplastic resin;
- supplying a foamable resin between said two layers;
- foaming said foamable resin in said heated device;
- and
- bonding said two layers to the foamable resin.
A method of producing a composite material, said method comprising:
- continuously forming a fiber-reinforced foamed composite material having embedded elements for conducting information or fluids.
A composite material comprising:
- a foam and one or more fiber-reinforced layers, where said fiber-reinforced layer includes a thermoplastic matrix having embedded fibers having a fiber length greater than 0.05 meter.
A composite material comprising a foam and one or more fiber-reinforced layers, where said fiber-reinforced layer includes a thermoplastic matrix, where said material has a Youngs modulus of from 8-20 GPa.
A composite material comprising a foam and one or more fiber-reinforced layers, where said fiber-reinforced layer includes a thermoplastic matrix, where said material has a density of from 200 to 1000 kg/m3.
A composite material comprising a foam and one or more fiber-reinforced layers, where said foam is a closed-cell foam, and where said closed-cell foams include a non-gaseous fluid.
Dependencies are inferred from the claim text.