Patent ID: 8569402

Claim:
A biodegradable injection mouldable polymer composition comprising, on a dry weight basis of total polymer composition: a) from 50 to 85% by weight of a starch and/or a modified high amylose starch; b) from 4 to 13% by weight of a water soluble polymer selected from the group consisting of polyvinyl alcohol and copolymers of polyvinyl alcohol/polyvinylacetate which have a melting point compatible with the molten state of the starch components; c) from 0.5 to 10% by weight of a polyethylene oxide polyethylene glycol; d) from 20 to 35% by weight of sorbitol and two or more other polyol plasticizers selected from the group consisting of glycerol, maltitol, xylitol, erythritol, mannitol, ethylene glycol, and diethylene glycol; and e) from 0.25 to 3% by weight of a food grade emulsifier.