| Abstract: |
Bag made of a breathable biodegradable uniform film having thickness from 10 to 40 μm and with permeability to water greater than 950 g 30 μm/m2 24 h in which the biodegradable film comprises starch and possibly a thermoplastic polymer insoluble in water with melting temperature between 60° C. and 150° C. |
| Inventor: |
Bastioli, Catia (Novara, IT); Del Tredici, Gianfranco (Sesto Calende, IT); Ponti, Roberto (Marano Ticino, IT); Tosin, Maurizio (Serravalle Sesia, IT) |
| Applicant: |
Bastioli, Catia (Novara, IT); Del Tredici, Gianfranco (Sesto Calende, IT); Ponti, Roberto (Marano Ticino, IT); Tosin, Maurizio (Serravalle Sesia, IT) |
| Face Assignee: |
Novamont S.p.A. (Novara, IT) |
| Filed: |
2005-04-07 |
| Issued: |
2014-06-10 |
| Claims: |
9 |
|
US8747971
|
1. A bag made of a breathable biodegradable uniform film comprising starch blended with an aliphatic-aromatic polyester of the diacid-diol type, wherein the amount of starch is between 25% and 60% of the total composition, said film having a thickness of from 10 to 40 μm, a permeability to water greater than 950 g 30 μm/m2 24 h, and the following tensile properties measured on 25-30 μm films at 23° C. and 55% RH: ultimate tensile strength greater than 16 MPa, modulus >50 MPa, and ultimate elongation >300%.
(8)
(0)
|
|
