THERMOPLASTIC POLYMERIC COMPOSITION AND METHOD OF PREPARATION THEREOF Russian patent published in 1997 - IPC

FIELD: chemistry of polymers. SUBSTANCE: claimed thermoplastic composition comprises starch, at least one synthetic polymer and plasticizer. The plasticizer is at least one compound selected from the group consisting of polyols containing 1-20 recurring hydroxylated units each of which contains 2 to 6 carbon atoms provided that when polyol contains one recurring unit, the latter contains at least 4 carbon atoms, except for sorbitol; ethers, thioethers, inorganic and organic esters, acetals and polyol amino derivatives containing 1-20 recurring hydroxylated units each of which contains 2 to 6 carbon atoms, except for acetic acid esters and glycerol, triethyl citrate and tributyl citrate; products of reaction of polyol containing 1 to 20 recurring hydroxylated units each of which contains 2 to 6 carbon atoms, with chain elongators; polyol oxidation products containing 1 to 20 recurring hydroxylated units each of which contains 2 to 6 carbon atoms and containing at least one aldehyde or carboxy functional group, or salts thereof. EFFECT: improved properties. 17 cl, 1 tbl