| 发明名称 | Granule coated with urethane resin | ||
| 摘要 | A coated granule is obtained by coating a bioactive substance-containing granule with a urethane resin obtained by reaction of an aromatic diisocyanate with a polyol mixture containing a polyesterpolyol and a C2-C8 polymethylene glycol, wherein the molar ratio of the polyesterpolyol to the polymethylene glycol is 1:20 to 20:1. The granule is capable of controlling elution of the bioactive substance appropriately, and the urethane resin forming the coating film shows degradability in soil. | ||
| 申请公布号 | US9163110(B2) | 申请公布日期 | 2015.10.20 |
| 申请号 | US200712671127 | 申请日期 | 2007.08.13 |
| 申请人 | Sumitomo Chemical Company, Limited | 发明人 | Watanabe Atsushi;Takebayashi Yoshihiro;Otsubo Toshiro |
| 分类号 | C05G3/00;C05G5/00;C08G18/76;A01N25/26;C08G18/66 | 主分类号 | C05G3/00 |
| 代理机构 | Panitch Schwarze Belisario & Nadel LLP | 代理人 | Panitch Schwarze Belisario & Nadel LLP |
| 主权项 | 1. A coated granule obtained by coating a bioactive substance-containing granule with a urethane resin obtained by reaction of an aromatic diisocyanate with a polyol mixture consisting of a polycaprolactonepolyol and a C2-C8 polymethylene glycol, and an opional additional triol, wherein the molar ratio of the polycaprolactonepolyol to the polymethylene glycol is 1:20 to 20:1. | ||
| 地址 | Tokyo JP | ||