| 发明名称 |
Processes for preparing carbon fibers using gaseous sulfur trioxide |
| 摘要 |
Disclosed herein are processes for preparing carbonized polymers, such as carbon fibers, comprising: sulfonating a polymer with a sulfonating agent that comprises SO3 gas to form a sulfonated polymer; treating the sulfonated polymer with a heated solvent, wherein the temperature of said solvent is at least 95° C.; and carbonizing the resulting product by heating it to a temperature of 500-3000° C. |
| 申请公布号 |
US9228276(B2) |
申请公布日期 |
2016.01.05 |
| 申请号 |
US201314413457 |
申请日期 |
2013.07.03 |
| 申请人 |
Dow Global Technologies LLC |
发明人 |
Barton Bryan E.;Lysenko Zenon;Bernius Mark T.;Hukkanen Eric J. |
| 分类号 |
D01F9/21;D01F9/14;D01F9/20 |
主分类号 |
D01F9/21 |
| 代理机构 |
|
代理人 |
Johnson Christopher A. |
| 主权项 |
1. Processes for preparing carbonized polymer, the processes comprising
a) sulfonating a polymer with a sulfonating agent that comprises SO3 gas to form a sulfonated polymer; b) treating the sulfonated polymer with a heated solvent, wherein the heated solvent is sulfuric acid at a temperature of at least 95° C.; and c) carbonizing the resulting product by heating it to a temperature of 500-3000° C. |
| 地址 |
Midland MI US |
