公开(公告)号：US09944568B2

公开(公告)日：2018-04-17

申请号：US14443090

申请日：2013-11-15

Applicant: BASF SE

Inventor： Raymond A. Neff ,  Alexander Gershanovich ,  Johanne Wilson

IPC: C05G3/00 ,  C05G3/02 ,  C05C9/00 ,  A01N33/18 ,  A01N25/26 ,  C08G18/48 ,  C08G18/66 ,  C09D175/04 ,  C08G18/32

CPC classification number: C05G3/0029 ,  A01N25/26 ,  A01N33/18 ,  C05C9/005 ,  C05G3/02 ,  C08G18/329 ,  C08G18/4829 ,  C08G18/6688 ,  C08G2310/00 ,  C09D175/04

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.

公开(公告)号：US20150291481A1

公开(公告)日：2015-10-15

申请号：US14443090

申请日：2013-11-15

Applicant: BASF SE

Inventor： Raymond A. Neff ,  Alexander Gershanovich ,  Johanne Wilson

IPC: C05G3/00 ,  C05G3/02 ,  C05C9/00 ,  A01N33/18

CPC classification number: C05G3/0029 ,  A01N25/26 ,  A01N33/18 ,  C05C9/005 ,  C05G3/02 ,  C08G18/329 ,  C08G18/4829 ,  C08G18/6688 ,  C08G2310/00 ,  C09D175/04

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.

Abstract translation: 包封的颗粒包括芯颗粒，围绕芯颗粒设置的可转移农药和围绕可转移农药布置的聚氨酯层。 核心颗粒包括肥料，例如尿素。 可转移农药可以包括二硝基苯胺，如二甲戊乐灵。 聚氨酯层通常由最高温度不大于约30℃的反应混合物形成。当包封的颗粒物理接触表面时，聚氨酯层抑制可转移农药转移到不同于核心颗粒的表面。 形成包封颗粒的方法包括以下步骤：用可转移农药包封核心颗粒以形成中间颗粒，将异氰酸酯和多元醇结合以形成反应混合物，并将中间体与反应混合物包封至 形成包封颗粒的聚氨酯层。 聚氨酯层包括异氰酸酯和多元醇的反应产物。