Patent ID: 8470421

Claim:
A biodegradable resin bottle having a wall formed by a biodegradable resin and a vacuum-evaporated film, formed by a plasma CVD method, on an inner surface of the wall, wherein said vacuum-evaporated film exhibits hydrocarbon peaks stemming from CH, CH 2 and CH 3 in a region of a wave number of 3200 to 2600 cm −1 as measured by FT-IR, and per the sum of CH, CH 2 and CH 3 calculated from the hydrocarbon peaks, a CH 2 ratio is not larger than 35% and a CH 3 ratio is not smaller than 40%; the vacuum-evaporated film exhibits, as measured by FT-IR, a peak stemming from an OH group in a region of a wave number of 3200 to 3800 cm −1 ; and the biodegradable resin is a polylactic acid.