Novamont S.p.a.

Consiglio Nazionale Delle Richerche

Consiglio Nazionale Delle Ricerche

Claudio Russo

Catia Bastioli

Luigi Capuzzi

Tiziana Milizia

Gianfranco Del Tredici

Roberto Vallero

Roberto Ponti

Italo Guanella

Sebastia Gesti Garcia

Tommaso Martinelli

Paola Comazzi

Mariangela Aiani

Pier Simone Ingui'

A multilayer film comprising two layers, A and B, having a A/B/A arrangement, wherein layers A and B differ from each other. Layer A comprises an aliphatic and/or aliphatic-aromatic biodegradable polyester or a polyvinyl alcohol or copolymers thereof and does not contain starch. Layer B comprises 30-95% by weight of at least an aliphatic-aromatic polyester (AAPE), 0.1-50% by weight of at least a polymer of natural origin, and 1-40% by weight of at least a polyhydroxyalkanoate (PHA). The multilayer biodegradable film which is particularly suitable for the manufacture of packaging and has appreciable optical transparency properties in addition to high level mechanical properties.

Multilayer biodegradable film

This invention relates to biodegradable films characterised by high resistance to processes of the photodegradative type, mainly activated by the ultraviolet component of sunlight, which are particularly suitable for use in the mulch film sector. These films comprise a composition containing at least one polyphenol of plant origin.

Photodegradation-resistant biodegradable films

The invention relates to a mixture of biodegradable polyesters comprising: (A) a polyhydroxy acid of the poly-&#x3b5;-caprolactone type and its copolymers, (B) aliphatic polyester, and (C) a polymer of polylactic acid, in which the concentration of (A) varies with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of (C) with respects to (A+B+C) lies between 2 and 30%.

Ternary mixture of biodegradable polyesters and products obtained therefrom

Growing community of inventors

Novara, Italy

Claudio Russo