UREA COMPOSITION, WITH LOW COMPACTABILITY, CAKING CAPACITY AND DUST FORMATION, AND METHOD PRODUCING SAID COMPOSITION Russian patent published in 2009 - IPC C05C9/00 

FIELD: agriculture.

SUBSTANCE: invention relates to a urea composition, consisting of a mixture of urea and, at least, two different biodegradable polymers, where at least one biodegradable polymer is a polyalkenyl compound with formula (C - CX)_n(C - CY)_m, where n ranges from 2 to 2000000, m ranges from 0 to 2000000, X is NH₂, CH₂NH₂, NH - HC=O, NH - RC=O, CH₂NHR, Y is H, NH₂, CH₂NH₂, NH - HC=O, NH - RC=O, CH₂NHR, R is an alkyl or alkenyl group, containing from 1 to 30 carbon atoms, and the second biodegradable polymer has general formula (CHX - CHY)_n, where n is an integer from 4 to 10000, and X and Y are independently chosen from hydrogen, carboxyl, ester, hydroxyl, amino- or amido- group.

EFFECT: reduced compactability, caking capacity and moisture sensitivity.

10 cl, 5 tbl, 4 ex