METHOD OF PREPARING SOLID PREPARATION FOR CULTIVATED PLANT PROTECTION AND SOLID PREPARATION FOR CULTIVATED PLANT PROTECTION Russian patent published in 1999 - IPC

Abstract RU 2130723 C1

FIELD: plant protection. SUBSTANCE: method consists in extrusion of active ingredient with thermoplastic polymer and is distinguished by using, as thermoplastic polymer, polyvinylpyrrolidone and carrying out the process according to melting temperature or to graduated temperature profile in such a manner as to ensure extrudate temperature near the extruder cylinder outlet between 50 and 200 C, after which extrudate is cooled to fragility state (5-25 C) and powdered. The thus obtained solid composition contains 0.1 to 41% of active ingredient. EFFECT: increased dispersing capability and biological activity. 7 cl, 2 tbl, 4 ex

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RU 2 130 723 C1

Authors

Dejvid Dzhon Uehdlok

Gerkhard De Lind Van Vejngarden

Dates

1999-05-27Published

1993-10-06Filed