A fiber and a process for the manufacture thereof
AssigneeStora Enso OYJ
InventorsNiklas Garoff, Robert Protz, Jens Erdmann, Johnannes Ganster, André Lehmann
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Abstract
The present invention relates to a method for manufacturing thermally stabilized, non-sticky and stretchable fibers, which may be further processed into intermediate carbon fibers and finally also carbon fibers. Uses of said fibers are also disclosed. Also a highly oriented intermediate carbon fiber is disclosed together with a highly oriented carbon fiber.
Claims29
A highly oriented intermediate carbon fiber having a Modulus of from about 40 to about 60 GPa.
A highly oriented carbon fiber having an elastic modulus of at least about 100 GPa, and a tensile strength of at least about 1.1 GPa.
A method for manufacturing a thermally stabilized, non-sticky and stretchable fiber, suitable for making an intermediate carbon fiber, comprising the following steps:
- a. providing cellulose and/or a cellulose derivative,
- b. providing lignin and/or a lignin derivative,
- c. dissolution of said components followed by subsequent mixing thus providing a dope,
- d. performing a solution spinning of the dope to a precursor material, and
- e. performing a stabilization, thus providing a thermally stabilized, non-sticky and stretchable fiber.
(canceled)
A method for manufacturing a highly oriented carbon fiber comprising the following steps:
- a.) providing a highly oriented intermediate carbon fiber having a Modulus of from about 40 to about 60 GPa, and
- b.) performing a carbonization step, thus providing a highly oriented carbon fiber.
(canceled)
Dependencies are inferred from the claim text.