Process of producing foamed molding from expanded polypropylene resin beads
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United States of America Patent
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May 12, 2009
Grant Date -
Dec 23, 2004
app pub date -
Oct 31, 2002
filing date -
Nov 1, 2001
priority date (Note) -
Expired
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Abstract
A process of producing a foamed molding, wherein expanded, substantially non-crosslinked polypropylene-based resin beads are heated in a mold to fuse-bond the beads together into a unitary body. Each of the expanded beads has been surface-modified with an organic peroxide.
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