	US 12,291,605 B2
	Composite structure and manufacturing method thereof
Kenji Nakamura, Ichihara (JP); and Tomomichi Kanda, Ichihara (JP)
Assigned to DIC Corporation, Tokyo (JP)
Appl. No. 17/788,367
Filed by DIC Corporation, Tokyo (JP)
PCT Filed Dec. 11, 2020, PCT No. PCT/JP2020/046336 § 371(c)(1), (2) Date Jun. 23, 2022, PCT Pub. No. WO2021/131804, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 2019-238247 (JP), filed on Dec. 27, 2019.
Prior Publication US 2023/0040667 A1, Feb. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 75/0259 (2016.01); B29C 45/14 (2006.01); B29K 81/00 (2006.01); B29K 705/02 (2006.01); B32B 3/26 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); C08G 75/0281 (2016.01); C08K 5/54 (2006.01)

CPC C08G 75/0259 (2013.01) [B32B 3/26 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); C08G 75/0281 (2013.01); C08K 5/54 (2013.01); B29C 45/14311 (2013.01); B29K 2081/00 (2013.01); B29K 2705/02 (2013.01); B32B 2266/045 (2013.01); B32B 2266/104 (2016.11)]

12 Claims

1. A composite structure in which a metal member having a roughened surface and a resin member are joined in a state in which at least a portion of the roughened surface is included, wherein

the resin member is made of a molded article obtained by melt-molding a polyarylene sulfide resin composition containing a polyarylene sulfide resin (A),

in the roughened surface, a cumulative pore volume of a pore diameter in a range of 0.1 μm to 20 μm is in a range of 0.5 nL/mm²or more and 5 nL/mm²or less measured by mercury porosimetry,

the roughened surface has a pore diameter of 5 μm or less in which a pore distribution shows a maximum value in the pore diameter in the range of 0.1 μm to 20 μm measured by the mercury porosimetry, and

the polyarylene sulfide resin (A) has a melt viscosity in a range of 5 Pa's or more and 500 Pa's or less, wherein the melt is viscosity measured using a Koka flow tester after being held at 300° C., a load of 1.96×106 Pa, and L/D=10 (mm)/1 (mm) for 6 minutes.