US 11,701,864 B2
Metal/resin composite structure and manufacturing method of metal/resin composite structure
Masaki Misumi, Yokohama (JP); Kazuki Kimura, Sodegaura (JP); and Kaoru Minagawa, Toyota (JP)
Assigned to MITSUI CHEMICALS, INC., Tokyo (JP)
Appl. No. 16/758,475
Filed by MITSUI CHEMICALS, INC., Tokyo (JP)
PCT Filed Oct. 25, 2018, PCT No. PCT/JP2018/039737
§ 371(c)(1), (2) Date Apr. 23, 2020,
PCT Pub. No. WO2019/082983, PCT Pub. Date May 2, 2019.
Claims priority of application No. JP2017-208197 (JP), filed on Oct. 27, 2017.
Prior Publication US 2020/0254728 A1, Aug. 13, 2020
Int. Cl. B29C 45/14 (2006.01); B32B 15/088 (2006.01); B32B 15/20 (2006.01); B32B 27/20 (2006.01); B32B 27/34 (2006.01); B32B 3/30 (2006.01); C08L 77/06 (2006.01); C08K 5/098 (2006.01); B29K 77/00 (2006.01); B29K 705/02 (2006.01); B29L 9/00 (2006.01)
CPC B32B 15/088 (2013.01) [B29C 45/14 (2013.01); B32B 3/30 (2013.01); B32B 15/20 (2013.01); B32B 27/20 (2013.01); B32B 27/34 (2013.01); C08K 5/098 (2013.01); C08L 77/06 (2013.01); B29K 2077/00 (2013.01); B29K 2705/02 (2013.01); B29L 2009/00 (2013.01); C08L 2205/02 (2013.01); C08L 2205/16 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A metal/resin composite structure comprising:
a metal member (M) having a fine uneven surface comprising a plurality of protrusions; and
a polyamide-based resin member (A) bonded to the fine uneven surface of the metal member (M), wherein the polyamide-based resin member (A) is formed from a polyamide resin which comprises
at least one semi-aromatic polyamide selected from the group consisting of polyhexamethylene isophthalamide (polyamide 6I), polyhexamethylene adipamide/polyhexamethylene isophthalamide copolymer (polyamide 66/6I), polyhexamethylene isophthalamide/polycaproamide copolymer (polyamide 6I/6), polyhexamethylene adipamide/polyhexamethylene terephthalamide/polyhexamethylene isophthalamide copolymer (polyamide 66/6T/6I), polyhexamethylene adipamide/polycaproamide/-polyhexamethylene isophthalamide copolymer (polyamide 66/6/6I), polyhexamethylene isophthalamide/polyhexamethylene terephthalamide copolymer (polyamide 6116T), and poly(2-methylpentamethylene terephthalamide)/poly(2-methylpentamethylene isophthalamide) copolymer (polyamide M5T/M5I); and
at least one polyamide selected from the group consisting of polyhexamethylene terephthalamide (polyamide 6T), polyhexamethylene adipamide/polyhexamethylene terephthalamide copolymer (polyamide 66/6T), and polyhexamethylene terephthalamide/polyhexamethylene isophthalamide copolymer (polyamide 6T/6I),
wherein the polyamide-based resin member (A) satisfies the following condition [A1] and condition [A2]:
[A1] a glass transition temperature (Tg) observed by a differential scanning calorimeter (DSC) equal to or higher than 85° C. and equal to or lower than 140° C.; and
[A2] a crystallization temperature (Tc) observed by a DSC is equal to or higher than 250° C. and equal to or lower than 292° C., and
wherein the polyamide-based resin member (A) includes a metal soap, wherein the metal soap includes montanic acid soap and 12-hydroxystearic acid soap, and the content of the montanic acid soap relative to 100% by mass of the metal soap is more than 20% by mass and less than 100% by mass.