When Biodegradable Plastic Isn't (image) American Chemical Society Share Print E-Mail Caption An oxo-biodegradable plastic bag could still hold 5 pounds of groceries without tearing after being submerged in the ocean for 3 years. Credit American Chemical Society Usage Restrictions Please credit the American Chemical Society. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.