Coated granular fertilizer capable of controlling the effect of

Details Coated granular fertilizer capable of controlling the effect of Coated granular fertilizer capable of controlling the effect of

1981-09-03

1983-01-18

Bashore, Jr., S. Leon

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 27, 71 63, C05C 502

Patent

active

043690556

ABSTRACT:
Fertilizers coated with coating layer having a controlled moisture permeability and a controlled temperature dependency of moisture permeability are presented by the production method which comprises ejecting hot drying air to the spout of granular fertilizer and spraying a hot solution of polyolefin type resin, ethylene-vinyl acetate copolymer or vinylidene type resin upon said fertilizer granules and drying said fertilizer granules upon being sprayed with solution having the property capable of forming a solution while it is hot but turning into jelly-like gel when it is cooled but as a most characteristic feature of this method uniformly dispersed fine powder is incorporated in said drying air or in said solution so as to have a coated layer of said resin containing uniformly distributed fine powder.

REFERENCES:
patent: 3372019 (1968-03-01), Fox
patent: 4015970 (1977-04-01), Hennart
patent: 4019890 (1977-04-01), Fujita et al.

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