BINDING COMPOSITION CONTAINING CONDENSED TANNIN AND FURFURYL ALCOHOL AND ITS APPLICATION Russian patent published in 2009 - IPC C04B26/10 B22C1/16 B22C1/22 B22C9/02 B22C9/04 B28B1/34 

FIELD: chemistry.

SUBSTANCE: forming mixture, including binding agent, which contains a) condensed tannin; and b) furfuryl alcohol, and main amount of forming filler, which can be used for manufacturing moulding form. Moulding form is manufactured by introduction of forming mixture into strickle with formation of form, form hardening without risk of destroying it, removal of form out of strickle. Hardening is realised by heating or cold method by means of hardening catalyst. Forms are used in casting of metal products.

EFFECT: elaboration of efficient forming mixture.

19 cl, 23 ex, 4 tbl