US 12,269,007 B2
Activated carbon fiber sheet for motor vehicle canister
Daisuke Imai, Tokyo (JP); Yoshihide Watanabe, Tokyo (JP); Yuu Takata, Tokyo (JP); Shunsuke Ozawa, Tokyo (JP); and Chie Yoshida, Tokyo (JP)
Assigned to NIPPON PAPER INDUSTRIES CO., LTD., Tokyo (JP)
Filed by NIPPON PAPER INDUSTRIES CO., LTD., Tokyo (JP)
Filed on Feb. 8, 2022, as Appl. No. 17/667,064.
Application 17/667,064 is a continuation of application No. PCT/JP2020/031503, filed on Aug. 20, 2020.
Claims priority of application No. 2019-151378 (JP), filed on Aug. 21, 2019.
Prior Publication US 2022/0152580 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 53/22 (2006.01); B01D 53/04 (2006.01); B01J 20/20 (2006.01); B01J 20/28 (2006.01); C01B 32/30 (2017.01); D01F 9/16 (2006.01); D06C 7/04 (2006.01); F02M 25/08 (2006.01)
CPC B01J 20/20 (2013.01) [B01D 53/0415 (2013.01); B01J 20/28011 (2013.01); B01J 20/28035 (2013.01); B01J 20/28066 (2013.01); B01J 20/28071 (2013.01); B01J 20/28073 (2013.01); B01J 20/28076 (2013.01); C01B 32/30 (2017.08); D01F 9/16 (2013.01); D06C 7/04 (2013.01); B01D 2253/102 (2013.01); B01D 2253/25 (2013.01); B01D 2253/304 (2013.01); B01D 2253/306 (2013.01); B01D 2253/308 (2013.01); B01D 2253/311 (2013.01); B01D 2259/4516 (2013.01); B01J 2220/42 (2013.01); B01J 2220/66 (2013.01); D10B 2401/10 (2013.01); D10B 2505/12 (2013.01); F02M 25/0854 (2013.01); F02M 2200/9046 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An activated carbon fiber sheet, comprising:
a specific surface area ranging from 1100 to 2300 m2/g;
a density ranging from 0.010 to 0.200 g/cm3;
a thickness ranging from 0.10 to 100.00 mm; and
a fiber size of 13.0 μm or larger,
wherein the activated carbon fiber sheet has a ratio R0.7/2.0 equal to or more than 15% and less than 25%, the ratio R0.7/2.0 being a ratio of a volume of pores having pore sizes of 0.7 nm or less to a volume of pores having pore sizes of 2.0 nm or less.