Chemistry: fertilizers – Processes and products – Forms or conditioning
Reexamination Certificate
2006-03-28
2006-03-28
Sayala, C. (Department: 1761)
Chemistry: fertilizers
Processes and products
Forms or conditioning
C071S027000, C071S028000
Reexamination Certificate
active
07018441
ABSTRACT:
The present invention provides a granular fertilizer which is coated with a thermosetting resin layer (first thermosetting resin layer), a water-insoluble material layer and a thermosetting resin layer (second thermosetting resin layer) from inner to outer layers, and it can release fertilizer ingredients for a long time, by a smaller amount of coating materials than known coated fertilizers.
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patent: 6663686 (2003-12-01), Geiger et al.
patent: 199930152 (1999-12-01), None
patent: 54-39298 (1979-11-01), None
patent: 2001-163691 (2001-06-01), None
Sayala C.
Sumitomo Chemical Company Limited
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