| 专利名称 | Catalyst for producing aliphatic polycarbonate and the preparation thereof | 申请号 | US20010943217 | 专利类型 | US | 公开（公告）号 | US6815529 | 公开（授权）日 | 2004.11.09 | 申请（专利权）人 | 中国科学院长春应用化学研究所 | 发明（设计）人 | WANG FOSONG (CN); WANG XIANHONG (CN); ZHAO XIAOJIANG (CN) | 主分类号 | C08G64/34 | IPC主分类号 | C08G64/34;B01J31/20;B01J31/16;B01J27/20 | 专利有效期 | Catalyst for producing aliphatic polycarbonate and the preparation thereof 至Catalyst for producing aliphatic polycarbonate and the preparation thereof | 法律状态 | 说明书摘要 | This invention relates to a catalyst for producing aliphatic polycarbonate, which is composed of a rare-earth coordination compound; an alkyl metal compound; a polyol; and a carbonate. The catalytic efficiency of the catalyst of the present invention is more than 8x10<4 >g polymer/mol RE(RE is rare earth metal). The number average molecular weight of the polymer is higher than 30,000. The degree of carbon dioxide fixation is more than 42 wt % and the content of alternative sequence structure exceeds 97%. |
1、源头对接，价格透明
2、平台验证，实名审核
3、合同监控，代办手续
4、专员跟进，交易保障