. . "Dependent Claim 3 reads as follows:The film of Claim 1, characterized in that R1 is a C1 alkyl and n is 1, and wherein the biodegradable copolymer comprises between 50% and 95% of the first randomly repeating monomer unit, and between 50% and 5% of the second randomly repeating monomer unit.The second auxiliary request differs from the main request in that Claim 3 of the main request has been de" . .