Process for producing extruded foam of polyhydroxyalkanoate resin and extruded foam obtained by the process
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United States of America Patent
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N/A
Issued Date -
May 21, 2009
app pub date -
Mar 15, 2006
filing date -
Mar 28, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An extruded foam excelling in environmental friendliness and having biodegradability; and a stable process for producing the same. There is provided a process for producing an extruded foam of P3HA resin, characterized by melt-kneading a copolymer (poly(3-hydroxyalkanoate), P3HA) having at least one type of repeating unit of the formula: —O—CHR—CH2—CO— (1) (wherein R is an alkyl group represented by CnH2n+1 and n is an integer of 1 to 15) produced by a microorganism, a volatile foaming agent, a fatty acid amide compound and/or liquid paraffin to thereby obtain a mixture and extruding the mixture through molding die into a low-pressure zone.
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Cited Art Landscape
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