Foam forming techniques capable of permitting foaming of biodegradable resin to be positively and uniformly accomplished to provide a biodegradable resin foam with satisfactory quality. The biodegradable resin foam is made of biodegradable resin consisting of a main biodegradable resin ingredient of...http://www.google.es/patents/US5602188?utm_source=gb-gplus-sharePatente US5602188 - Biodegradable resin foam and method and apparatus for producing same
Biodegradable resin foam and method and apparatus for producing same
