Title:
METHOD FOR MANUFACTURING COATED GRANULAR FERTILIZER, AND COATED GRANULAR FERTILIZER
Document Type and Number:
WIPO Patent Application WO/2022/131217
Kind Code:
A1
Abstract:
Provided are a method for manufacturing a coated granular fertilizer that has high homogeneity in a resin coating, and this coated granular fertilizer. The method for manufacturing a coated granular fertilizer that is composed of a granular fertilizer and a urethane resin coating film coating the granular fertilizer, said method comprising a step for adding a polyisocyanate component, a polyol component and diazabicyclononene to the granular fertilizer in a rotated state, and a step for performing polyaddition of the polyisocyanate component and the polyol component while maintaining the granular fertilizer in the rotated state to thereby form the urethane resin coating film on the surface of the granular fertilizer; and the coated granular fertilizer that has high homogeneity in the resin coating.
Inventors:
SASAKAWA MITSUHIRO (JP)
Application Number:
PCT/JP2021/045850
Publication Date:
June 23, 2022
Filing Date:
December 13, 2021
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
B01J2/00; C05G5/30; C05G3/00; C05G3/40; C05G5/12
Domestic Patent References:
| WO2019086440A1 | 2019-05-09 |
Foreign References:
| US20200385319A1 | 2020-12-10 | |||
| US20200385321A1 | 2020-12-10 | |||
| JP2004307736A | 2004-11-04 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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