Title: Grahular fertilizer with a decomposable coating and process for producing the same
Application Number: 87105842 Application Date: 1987.08.04
Publication Number: 1016607 Publication Date: 1988.02.24
Approval Pub. Date: 1993.04.21 Granted Pub. Date: 1993.04.21
International Classifi-cation: C05G3/00
Applicant(s) Name: Chisso Corp. Address:
Inventor(s) Name: Toshio Funita
Attorney & Agent: YANG LIQIN
Abstract:
    A granular fertilizer with a coating which is decomposable by soil microorganisms, preferably a coating which is decomposed and degraded both on the surface layer of the soil and in the soil, and a process for producing the granular fertilizer, which coating contains a poly 3-hydroxy-3-alkylpropionic acid as an indispensable ingredient, and if necessary, a resin or a low-molecular resin and further, if necessary, an inorganic or organic powder, and which process comprises adding an organic solvent solution of the poly 3-hydroxy-3-alkylpropionic acid, and if necessary, the resin, and if necessary the powder dispersed in the solution to a granular fertilizer in fluided state in the form of spray, and when added, blowing a high speed hot air stream onto the fertilizer to thereby instantaneously remove the solvent and also dry the resulting fertilizer.
Time: 4