- Patent Title: Method for recovering carbon fibers from composite material waste
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Application No.: US16482430Application Date: 2018-03-30
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Publication No.: US11319489B2Publication Date: 2022-05-03
- Inventor: Gang Sui , Xiaoping Yang , Xin Jin , Zhu Ming , Zhandong Wang
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Walters & Wasylyna LLC
- Priority: CN201710213479.0 20170401
- International Application: PCT/US2018/025389 WO 20180330
- International Announcement: WO2018/183838 WO 20181004
- Main IPC: D01F9/12
- IPC: D01F9/12 ; C10B57/06 ; C01B32/05 ; C10B53/07 ; B29B17/04
Abstract:
A method for recovering carbon fibers from composite material waste includes coating a solid acid powder onto a surface of a composite material waste having carbon fibers and a resin matrix, pyrolyzing the resin matrix of the coated composite material waste in an inert environment, and oxidizing the pyrolyzed resin of the composite material waste in an air environment.
Public/Granted literature
- US20200002619A1 METHOD FOR RECOVERING CARBON FIBERS FROM COMPOSITE MATERIAL WASTE Public/Granted day:2020-01-02
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