a biodegradable injection moldable polymer having the 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 polyvinylacetate , polyvinyl alcohol and copolymers of ethylene and vinylalcohol which have a melting point compatible with the molten state of the starch components c ) from 10 to 35 % by weight of a polyol plasticizer d ) from 0 . 5 to 10 % of a polyethylene oxide or polyethylene glycol e ) from 0 to 1 . 5 % by weight of a c 12 - 22 fatty acid or salt and f ) from 0 . 25 % to 3 % of a food grade emulsifier . the polymers are suitable for biodegradable , flushable tampon applicators and other medical or industrial products where flushability and bio degradability are desirable .