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Biodegradable solid preparation of a phytopathologicalagent with delayed active substance release

  • US 20040259736A1
  • Filed: 03/23/2004
  • Published: 12/23/2004
  • Est. Priority Date: 09/28/2001
  • Status: Abandoned Application
First Claim
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1. A method for the preparation of a solid formulation of a slow-release crop protection product, which comprises carrying out a melt extrusion of a composition comprising (a) 0.1 to 80% by weight of at least one fungicidal active ingredient;

  • (b) 0 to 80% by weight of at least one herbicidal, acaricidal, insecticidal or growth-regulatory active ingredient;

    (c) 3 to 80% by weight of a thermoplastic, water-insoluble polymer from the group of the polylactides;

    (d) 5 to 80% by weight of at least one polybutylene adipate terephthalate;

    (e) 10 to 80% by weight of at least one mineral filler; and

    (f) 0 to 20% by weight of inorganic or organic additives;

    the total of components (a) to (f) being 100%, and subsequently shaping the extrudate.

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