Composite Body of Metal and Thermoplastic Resin

Patent metadata

Field	Value
Publication number	US-2016185088-A1
Application number	US-201414911569-A
Country	US
Kind code	A1
Filing date	Aug 12, 2014
Priority date	Aug 12, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

Provided is a composite body in which a resin and a metal are contact-bonded with excellent adhesive force. Also provided is a composite body which is suppressed in decrease of bonding strength between a resin and a metal due to water absorption of the resin even if the composite body is left in rain or water, or is left in a high humidity environment or the like for a long period of time.
The present invention relates to a composite body which is obtained by contact-bonding a thermoplastic resin (A) and a metal (B), and which is characterized in that the thermoplastic resin (A) is a polyamide elastomer (1A) or a thermoplastic resin composition (2A) that contains a water absorbent thermoplastic resin (2a) and a metal hydroxide (2b).

First claim

1 .- 18 . (canceled)

19 . A composite body obtained by contact-bonding a thermoplastic resin (A) and a metal (B), wherein the thermoplastic resin (A) is a polyamide elastomer (1A), or a thermoplastic resin composition (2A) containing a water absorbent thermoplastic resin (2a) and a metal hydroxide (2b), and the metal (B) is a surface-treated metal or surface-untreated metal.

20 . The composite body according to claim 19 , wherein the polyamide elastomer (1A) is a polyamide elastomer composition containing a polyether amide elastomer and an inorganic filler (1b).

21 . The composite body according to claim 20 , wherein the inorganic filler (1b) is at least one member selected from the group consisting of silicate mineral, hydroxide, graphite, and metal oxide.

22 . The composite body according to claim 21 , wherein the inorganic filler (1b) is at least one member selected from the group consisting of talc, magnesium hydroxide, graphite, and magnesium oxide.

23 . The composite body according to claim 20 , wherein the inorganic filler (1b) is contained in the polyamide elastomer composition in an amount of 0.01 weight % to 50 weight %.

24 . The composite body according to claim 20 , wherein the polyamide elastomer composition contains an aminosilane coupling agent.

25 . The composite body according to claim 24 , wherein the aminosilane coupling agent is contained in the polyamide elastomer composition in an amount of 0.01 weight % to 1.0 weight %.

26 . The composite body according to claim 22 , wherein the magnesium hydroxide is contained in the thermoplastic resin composition (2A) in an amount of 0.1 weight % to 20 weight %.

27 . The composite body according to claim 19 , wherein the thermoplastic resin composition (2A) further contains an inorganic filler that increases the crystallization temperature of the thermoplastic resin composition by 3° C. or more.

28 . The composite body according to claim 27 , wherein the inorganic filler is talc.

29 . The composite body according to claim 19 , wherein the thermoplastic resin composition (2A) further contains a glass fiber.

30 . The composite body according to claim 19 , wherein the thermoplastic resin (A) and the metal (B) are contact-bonded through injection molding.

31 . The composite body according to claim 19 , wherein the surface treatment is a treatment for fine uneven surface processing to the surface thereof such that the metal surface is covered by microscopic recesses or hole openings of number-average diameter of 10 to 100 nm, or fixing a chemical substance to the surface thereof.

Assignees

• Ube Industries

Inventors

• Akatsu Hiroki
• Fujimura Hideki
• Sasaki Riyousuke
• Hirayama Shinichi
• Hiroki Tetsurou
• Harada Hideki

Classifications

• B32B2307/728

  Hydrophilic · CPC title

• B32B2605/08

  Cars · CPC title

• B32B2307/7242

  Non-permeable · CPC title

• B32B2307/202

  Conductive · CPC title

• B32B2274/00

  Thermoplastic elastomer material · CPC title