Invention Grant
US09228276B2 Processes for preparing carbon fibers using gaseous sulfur trioxide
有权
使用气态三氧化硫制备碳纤维的方法
- Patent Title: Processes for preparing carbon fibers using gaseous sulfur trioxide
- Patent Title (中): 使用气态三氧化硫制备碳纤维的方法
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Application No.: US14413457Application Date: 2013-07-03
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Publication No.: US09228276B2Publication Date: 2016-01-05
- Inventor: Bryan E. Barton , Zenon Lysenko , Mark T. Bernius , Eric J. Hukkanen
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Agent Christopher A. Johnson
- International Application: PCT/US2013/049189 WO 20130703
- International Announcement: WO2014/011457 WO 20140116
- Main IPC: D01F9/21
- IPC: D01F9/21 ; D01F9/14 ; D01F9/20
Abstract:
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.
Public/Granted literature
- US20150167201A1 PROCESSES FOR PREPARING CARBON FIBERS USING GASEOUS SULFUR TRIOXIDE Public/Granted day:2015-06-18
Information query
IPC分类:
