US 12,467,170 B2
Fiber-reinforced composite material and method for producing the same
Taiyo Yoshioka, Tsukuba (JP); Tsunenori Kameda, Tsukuba (JP); Akimune Asanuma, Tsukuba (JP); and Norihiko Fukuoka, Tsukuba (JP)
Assigned to NATIONAL AGRICULTURE AND FOOD RESEARCH ORGANIZATION, Tsukuba (JP); and KOWA COMPANY, LTD., Nagoya (JP)
Appl. No. 17/437,667
Filed by NATIONAL AGRICULTURE AND FOOD RESEARCH ORGANIZATION, Tsukuba (JP); and KOWA COMPANY, LTD., Nagoya (JP)
PCT Filed Mar. 13, 2020, PCT No. PCT/JP2020/010995
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/184697, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 2019-046521 (JP), filed on Mar. 13, 2019.
Prior Publication US 2022/0127768 A1, Apr. 28, 2022
Int. Cl. D04H 1/4266 (2012.01); C08J 5/04 (2006.01)
CPC D04H 1/4266 (2013.01) [C08J 5/045 (2013.01); D10B 2211/04 (2013.01); D10B 2401/061 (2013.01); D10B 2401/063 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A fiber-reinforced composite material with a sheet-like shape consisting of a polymer matrix and a nonwoven fabric consisting of at least one bagworm silk thread and an additional fiber,
wherein the additional fiber is at least one organic fiber other than bagworm silk thread, at least one inorganic fiber, and/or a combination of these fibers,
wherein the bagworm silk thread consists of at least one continuous fiber silk thread wherein the fiber-reinforced composite material is isotropic in terms of elastic modulus, strength and elongation.