US 12,030,295 B2
Fiber-reinforced resin composite material and method of manufacturing fiber-reinforced resin composite material
Naoyuki Sekine, Tokyo (JP); and Yuta Inoue, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Jun. 1, 2020, as Appl. No. 16/889,128.
Claims priority of application No. 2019-142648 (JP), filed on Aug. 2, 2019.
Prior Publication US 2021/0031486 A1, Feb. 4, 2021
Int. Cl. B32B 5/26 (2006.01); B29C 70/74 (2006.01); B29K 63/00 (2006.01); B29K 105/08 (2006.01); B29K 277/00 (2006.01); B32B 5/02 (2006.01); B32B 7/09 (2019.01); B32B 27/34 (2006.01); B32B 37/02 (2006.01); B32B 38/00 (2006.01); C08J 5/24 (2006.01)
CPC B32B 5/26 (2013.01) [B29C 70/745 (2013.01); B32B 5/024 (2013.01); B32B 5/026 (2013.01); B32B 7/09 (2019.01); B32B 27/34 (2013.01); B32B 37/02 (2013.01); B32B 38/0036 (2013.01); C08J 5/247 (2021.05); C08J 5/249 (2021.05); B29K 2063/00 (2013.01); B29K 2105/089 (2013.01); B29K 2277/00 (2013.01); B32B 2038/0076 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0261 (2013.01); B32B 2363/00 (2013.01); C08J 2379/04 (2013.01); C08J 2463/00 (2013.01); C08J 2477/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A fiber-reinforced resin composite material comprising:
a first member including a first fiber and a first matrix resin, the first fiber including a reinforcing fiber and having a sheet shape and being impregnated with the first matrix resin, the reinforcing fiber having a melting point and a tensile strength that are higher than a melting point and a tensile strength of an aliphatic polyamide fiber, the first matrix resin being cured; and
a second member including a stack and a second matrix resin, and provided on a surface of the first member, the stack including a second fiber and a third fiber that are stacked alternately and that are filled with the second matrix resin, the second fiber including the reinforcing fiber and having a sheet shape, the third fiber having a sheet shape, the second matrix resin being cured, wherein
the second matrix resin includes a component common to a component of the first matrix resin, and includes a first polyamide resin that comprises an aliphatic polyamide resin, and
the third fiber includes a second polyamide resin, the second polyamide resin comprising an aliphatic polyamide resin and having a melting point higher than a melting point of the first polyamide resin by 7 degrees centigrade to 50 degrees centigrade.