Use of an aqueous dispersion from a biodegradable polyester...

Details Use of an aqueous dispersion from a biodegradable polyester... Use of an aqueous dispersion from a biodegradable polyester...

C - Chemistry, Metallurgy

05

G

C05G 3/00 (2006.01) C05G 3/10 (2006.01)

Patent

CA 2267349

The present invention relates to a polyester dispersion containing water and a biodegradable copolyester encompassing structural units from (derivates from) a carboxylic acid, intended for use a sheathing material for granulated fertilizer. The invention also relates to the sheathed granulated fertilizer obtained from the polyester dispersion and the fertilizing method whereby said sheathed granulated fertilizer is applied.

Pour encapsuler de l'engrais granulé, il est proposé, selon la présente invention, d'utiliser une dispersion de polyester contenant de eau et un copolyester biodégradable, lequel renferme des unités structurelles à base (de dérivés) d'acide carboxylique. L'invention porte aussi sur l'engrais granulé encapsulé, produit à partir de cette dispersion de polyester, et sur le procédé de fertilisation où ledit engrais granulé encapsulé trouve son application.

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