Back to results
US 11,596,922 B2Granted
Porous fiber, adsorbent material, and purification column
AssigneeToray Industries, Inc.
InventorsHiroaki Fujieda, Yoshiyuki Ueno, Kazumi Tanaka
Life of this patent
Estimating the term…
Abstract
A solid fiber is described, where the solid fiber is characterized by (a) a modification degree Do/Di, in a cross section of the solid fiber of 1.20 to 8.50 where the inscribed circle diameter is denoted by Di and the circumscribed circle diameter is denoted by Do; and (b) a porous specific surface area of not less than 30 m2/g.
Claims16
A porous fiber having pores inside the fiber and comprising a modified solid cross-section, wherein the porous fiber satisfies the following (a) and (b):
- (a) a modification degree Do/Di in the modified solid cross-section is 1.20 to 8.50 where an inscribed circle diameter of the modified solid cross-section is denoted by Di and a circumscribed circle diameter of the modified solid cross-section is denoted by Do;
- and
- (b) a porous specific surface area of the fiber is not less than 170 m2/g.
Dependencies are inferred from the claim text.