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US 2021/0230775 A1Published application
A process for producing carbon fibers and carbon fibers made therefrom
AssigneeCytec Industries Inc.
InventorsJeremy MOSKOWITZ, Thomas TAYLOR, Amy TUCKER, Alan THOMAS, Billy HARMON
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Abstract
The present disclosure relates to a process for producing carbon fibers utilizing a salt of an organic cation containing C═N imine group, and carbon fibers produced by such process.
Claims29
A process for producing carbon fibers, the process comprising:
- a) preparing a polymer solution or a molten polymer;
- b) spinning the polymer solution or the molten polymer prepared in step (a);
- thereby forming carbon fiber precursor fibers;
- c) drawing the carbon fiber precursor fibers through one or more draw and wash baths, resulting in drawn carbon fiber precursor fibers that are substantially free of solvent;
- and
- d) oxidizing the drawn carbon fiber precursor fibers of step c) to form stabilized carbon fiber precursor fibers and then carbonizing the stabilized carbon fiber precursor fiber, thereby producing carbon fibers;
- wherein at least one salt of an organic cation containing a C═N imine group is present in at least one of the steps a) to c).
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Dependencies are inferred from the claim text.