Invention Grant
- Patent Title: Encapsulated particle
- Patent Title (中): 封装颗粒
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Application No.: US12490771Application Date: 2009-06-24
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Publication No.: US08303680B2Publication Date: 2012-11-06
- Inventor: Donald C. Mente
- Applicant: Donald C. Mente
- Applicant Address: DE Rheinland-Pfalz
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Rheinland-Pfalz
- Agency: Howard & Howard Attorneys PLLC
- Main IPC: C05D9/02
- IPC: C05D9/02 ; A01N25/00 ; B32B5/16 ; B32B9/00 ; B32B15/02 ; B32B17/02 ; B32B19/00 ; B32B21/02 ; B32B23/02 ; B32B27/02

Abstract:
An encapsulated particle comprises a core particle and a polyurethane layer disposed about the core particle. The core particle can be various particles, such as fertilizer, biocides, flame retardants, seeds, etc. The polyurethane layer comprises the reaction product of an isocyanate component and an isocyanate-reactive component. The isocyanate-reactive component comprises a graft polyol having a continuous phase and polymeric particles. A method of forming the encapsulated particle comprises the steps of providing the core particle, applying the isocyanate and isocyanate-reactive components to the core particle, and reacting the isocyanate and isocyanate-reactive components to form the polyurethane layer. The encapsulated particle has excellent physical properties, such as increased water repellency, resiliency and shelf life.
Public/Granted literature
- US20100326152A1 ENCAPSULATED PARTICLE Public/Granted day:2010-12-30
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