Coagulated yarn and manufacturing method thereof, carbon fiber precursor fiber, and method of manufacturing carbon fiber
AssigneeToray Industries, Inc.
InventorsKentaro Kajiwara, Ayanobu Horinouchi, Haruki Okuda, Tomohisa Noguchi, Fumitaka Watanabe
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Abstract
A coagulated yarn, which is used to manufacture carbon fiber, is a coagulated yarn the surface hole diameter of which is 30 nm or less and the degree of swelling is less than 100% or a coagulated yarn the surface hole diameter of which is 30 nm or less and the inner hole diameter is 30 nm or less. The carbon fiber precursor fiber and the carbon fiber are obtained using such a coagulated yarn.
Claims20
1-11. (canceled)
A coagulated yarn used to produce a precursor fiber for carbon fiber, wherein pore size of the surface layer is 30 nm or less and degree of swelling is less than 100%.
A coagulated yarn used to produce a precursor fiber for carbon fiber, wherein pore size of the surface layer is 30 nm or less and pore size of the inner layer is 30 nm or less.
Dependencies are inferred from the claim text.