Invention Grant
- Patent Title: Encapsulated fertilizer particle containing pesticide
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Application No.: US14443090Application Date: 2013-11-15
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Publication No.: US09944568B2Publication Date: 2018-04-17
- Inventor: Raymond A. Neff , Alexander Gershanovich , Johanne Wilson
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: DLA Piper LLP (US)
- International Application: PCT/US2013/070270 WO 20131115
- International Announcement: WO2014/078642 WO 20140522
- Main IPC: C05G3/00
- IPC: C05G3/00 ; C05G3/02 ; C05C9/00 ; A01N33/18 ; A01N25/26 ; C08G18/48 ; C08G18/66 ; C09D175/04 ; C08G18/32

Abstract:
An encapsulated particle comprises a core particle, a transferrable-pesticide disposed about the core particle, and a polyurethane layer disposed about the transferrable-pesticide. The core particle comprises a fertilizer, such as urea. The transferrable-pesticide can comprise a dinitroaniline, such as pendimethalin. The polyurethane layer is generally formed from a reaction mixture having a maximum temperature of no greater than about 30° C. The polyurethane layer inhibits the transferrable-pesticide from transferring to a surface different from the core particle when the encapsulated particle physically contacts the surface. A method of forming the encapsulated particle comprises the steps of encapsulating the core particle with the transferrable-pesticide to form an intermediate-particle, combining an isocyanate and a polyol to form the reaction mixture, and encapsulating the intermediate-particle with the reaction mixture to form the polyurethane layer of the encapsulated particle. The polyurethane layer comprises the reaction product of the isocyanate and polyol.
Public/Granted literature
- US20150291481A1 Encapsulated Fertilizer Particle Containing Pesticide Public/Granted day:2015-10-15
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