Porous structural unit and a method of preparing the same

Details Porous structural unit and a method of preparing the same Porous structural unit and a method of preparing the same

B - Operations, Transporting

32

B

18/641

B32B 5/14 (2006.01) B29C 43/00 (2006.01) B29C 43/20 (2006.01) B29C 44/04 (2006.01) G10K 11/162 (2006.01)

Patent

CA 2001757

The present invention concerns a method of preparing a porous structural unit comprising a plurality of layers having different specific gravities by pressing and heating a material including resin particles between opposing molds having a temperature difference to thereby cause the fusion or bonding of the resin particles, and a porous structural unit which improves acoustic absorption properties and heat insulation properties and in which the specific gravity is continuously changed.

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