IP Library Granted Patent US 10,306,774
Granted Patent B2
US 10,306,774 · App. 16/099,876 · Granted May 28, 2019

Laminate structure of metal coating

Inventor: Masahiro Ito (Hiratsuka, JP)
Assignee: ELECTROPLATING ENGINEERS OF JAPAN LIMITED.
H05K3/387B32B15/01B32B15/08C23C18/42C23C28/00C25D5/54H05K3/185H05K1/032H05K1/09H05K2203/072H05K2203/0709H05K2203/1105
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Quick Facts
Patent No.
US 10,306,774
App. No.
16/099,876
Granted
May 28, 2019
Kind
B2
Abstract

A laminate structure of metal coating is laminated on a base material, and includes a primer layer, a catalyst layer and a plating deposited layer. The primer layer is a resin layer with a glass transition temperature (Tg) of 40 to 430° C. The catalyst layer is a metal nanoparticle group arranged in a plane on the primer layer, wherein the metal nanoparticle group is a metal in Group 11 or Groups 8, 9 and 10 in a periodic table, and the metal nanoparticles are surrounded by the primer layer. Ends of the metal nanoparticles are attached to the plating deposited layer.

Claims (10)

1. A laminate structure of metal coating to be laminated on a base material, comprising:

a primer layer, which is a resin layer with a glass transition temperature (Tg) of 40 to 430° C.,

a catalyst layer, which is a metal nanoparticle group arranged in a plane on the primer layer, wherein the metal nanoparticle group is a metal in Group 11 or Groups 8, 9 and 10 in a periodic table, and metal nanoparticles at one side of the nanoparticle group are surrounded by the primer layer, and

a plating deposited layer, the metal nanoparticles at another side of the nanoparticle group being attached to the plating deposited layer.

2. The laminate structure of metal coating according to claim 1 , wherein the metal nanoparticles are gold (Au), silver (Ag), platinum (Pt) or palladium (Pd).

3. The laminate structure of metal coating according to claim 1 , wherein an average particle diameter of the metal nanoparticles is 1 to 100 nm.

4. The laminate structure of metal coating according to claim 3 , wherein a particle diameter of the metal nanoparticles has a variation coefficient C.V.<0.8.

5. The laminate structure of metal coating according to claim 1 , wherein the glass transition temperature (Tg) of the primer layer is 50 to 350° C.

6. The laminate structure of metal coating according to claim 1 , wherein the plating deposited layer is an electroless plating deposited layer and an electroplating deposited layer.

7. The laminate structure of metal coating according to claim 1 , wherein the catalyst layer is partly arranged on the primer layer, and the plating deposited layer thereon forms a metallic circuit.

Assignments (2)
CHANGE OF NAME Recorded Aug 31, 2022
From: ELECTROPLATING ENGINEERS OF JAPAN LIMITED
To: EEJA LTD.
Reel/Frame 061364/0853 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2019
From: ITO, MASAHIRO
To: ELECTROPLATING ENGINEERS OF JAPAN LIMITED.
Reel/Frame 048479/0833 →
Priority Claims (1)
JP 2016-185414 · Sep 23, 2016 · national
Continuity (1)
Related Publication 20190090357A1 · Mar 21, 2019