Polylactic acid resin foamed molding and process for...

Details Polylactic acid resin foamed molding and process for... Polylactic acid resin foamed molding and process for...

2005-10-21

2010-06-01

Dye, Rena L (Department: 1794)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C521S079000, C264S045900, C264S512000, C264S513000, C264S514000, C264S515000

Reexamination Certificate

active

07727606

ABSTRACT:
A polylactic acid resin foamed molding obtained by placing in a mold a cylindrical body having a foamed layer, which is formed by extruding a foamable molten resin composition prepared by kneading together a polylactic acid resin and a physical blowing agent from a die into a low-pressure zone, and molding it, whereinthe molding's foamed layer constituting the foamed molding has a difference (ΔHendo:2° C./min−ΔHexo:2° C./min) between the endothermic calorific value (ΔHendo:2° C./min) and the exothermic calorific value (ΔHexo:2° C./min) obtained by heat flux differential scanning calorimetry (heating rate of 2° C./min) of 10 J/g or more and a melt tension at 190° C. of 2 cN or more.

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patent: 2003-183433 (2003-07-01), None
European Search Report for EP-05023248 (Dec. 18, 2007).

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