Biodegradable polymer blends suitable for laminate coatings, wraps and other packaging materials are manufactured from at least one “hard” biopolymer and at least one “soft” biopolymer. “Hard” biopolymers tend to be more brittle and rigid and typically have a glass transition temperature...http://www.google.fr/patents/US7297394?utm_source=gb-gplus-shareBrevet US7297394 - Biodegradable films and sheets suitable for use as coatings, wraps and packaging materials
Biodegradable films and sheets suitable for use as coatings, wraps and ...
