| 发明名称 | Processes for cross-linking cellulose ethers under mild conditions | ||
| 摘要 | The present technology provides processes for cross-linking cellulose ethers under mild conditions. The processes include exposing a substantially dry cellulose ether film to a polyisocyanate to provide a cross-linked cellulose ether film, wherein the substantially dry cellulose ether film comprises alkoxide groups on the cellulose. The resulting cellulose ether films are highly cross-linked by polyurethane linkages and may be used as membranes in a variety of applications. | ||
| 申请公布号 | US9024011(B2) | 申请公布日期 | 2015.05.05 |
| 申请号 | US201013377493 | 申请日期 | 2010.09.02 |
| 申请人 | University of Calcutta | 发明人 | Kundu Patit Paban;Singh Ratan Pal |
| 分类号 | C08B11/08;C08B11/20;C07H1/00;C08J3/24;B01D67/00;B01D71/22;C08G18/64;C08J5/18 | 主分类号 | C08B11/08 |
| 代理机构 | Foley & Lardner LLP | 代理人 | Foley & Lardner LLP |
| 主权项 | 1. A process comprising exposing a substantially dry cellulose ether film to a polyisocyanate in a suspension of a base in a suitable organic solvent and drying the resulting cellulose ether film to provide a cross-linked cellulose ether film, wherein the substantially dry cellulose ether film comprises alkoxide groups on the cellulose and no more than about 0.1% water by weight. | ||
| 地址 | Kolkata IN | ||