Composite foam structures
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United States of America Patent
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Aug 16, 2005
Grant Date -
N/A
app pub date -
Nov 16, 1999
filing date -
Nov 16, 1998
priority date (Note) -
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Abstract
A composite rigid foam structure that has a skin or coating on at least one of its surfaces. The skin is formed in situ by thermal spray techniques. The skin is bonded substantially throughout the surface of the porous substrate to the peripheries of the pores. The skin on the average does not penetrate the surface of the substrate by more than the depth of about 2 to 5 pores. Thus, thermal spraying the skin onto the rigid foam produces a composite that is tightly and uniformly bonded together without unduly increasing the weight of the composite structure. Both thermal conductivity and bonding are excellent.
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