Expandable films and molded products therefrom
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United States of America Patent
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Mar 14, 1995
Issued Date -
N/A
app pub date -
Aug 10, 1993
filing date -
Apr 30, 1991
priority date (Note) -
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Abstract
A thin, tacky, non-pourable film of incompatible in situ-expandable thermoplastic particles and thermosettable matrix resin that contains an essentially uniform density and thickness across the breadth of the film. The in situ-expandable mass is not pourable yet can be easily dispensed in a uniform manner within a mold and thereafter expanded to the dimensions of the mold. Composites and reinforced compositions, as well as methods of molding, are disclosed.
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