Composition for forming conductive pattern, method for forming conductive pattern using the same, and resin components having conductive pattern thereon

Patent metadata

Field	Value
Publication number	US-9992864-B2
Application number	US-201514912005-A
Country	US
Kind code	B2
Filing date	Apr 16, 2015
Priority date	Apr 16, 2014
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

The present invention relates to a composition for forming a conductive pattern capable of forming a fine conductive pattern reducing degradation of mechanical physical properties and having excellent adhesion strength, on a polymeric resin product or resin layer, a method for forming a conductive pattern using the same, and a resin component having the conductive pattern. The composition for forming a conductive pattern includes: a polycarbonate-based resin; and particles of a non-conductive metal compound including a first metal and a second metal and having a spinel structure, wherein the particles have a particle diameter of 0.1 to 6 μm; wherein a metal nuclei including the first metal, the second metal, or an ion thereof is formed from the particles of the non-conductive metal compound by electromagnetic wave irradiation. The non-conductive metal compound may have an average specific surface area of about 0.5 to 10 m 2 /g, preferably about 0.5 to 8 m 2 /g, more preferably about 0.7 to about 3 m 2 /g.

First claim

The invention claimed is:

1. A composition for forming a conductive pattern by electromagnetic wave irradiation, comprising:
a polycarbonate-based resin; and
particles of a non-conductive metal compound including a first metal element and a second metal element and having a spinel structure, wherein the particles have a particle diameter of 0.1 to 6 μm,
wherein a metal nuclei including the first metal element, the second metal element, or an ion thereof is formed from the particles of the non-conductive metal compound by electromagnetic wave irradiation.

2. The composition of claim 1 , wherein the particles of the non-conductive metal compound include at least one of non-conductive metal compounds represented by following of Chemical Formula 1, 2 or 3:
AB 2 X 4   [Chemical Formula 1]

B(AB)X 4   [Chemical Formula 2]

[A (1-a) M (a) ][B (2-b) M (b) ]X 4   [Chemical Formula 3]

wherein:
A and B are independently of each other the first and the second metal elements, and one of which is at least one metal selected from the group consisting of Cu, Ag, Pd, Au, Pt, Ni and Sn, and the other of which is at least one metal selected from the group consisting of Cr, Fe, Mo, Mn, Co and W;
M is at least one metal selected from the group consisting of Cr, Fe, Mo, Mn, Co and W, and different from A or B;
a is a real number more than 0 less than 1, and b is a real number more than 0 less than 2; and
X is oxygen, nitrogen or sulfur.

3. The composition of claim 1 , wherein the polycarbonate-based resin is a resin including a polycarbonate resin alone, or a resin including a polycarbonate resin and further, at least one resin selected from the group consisting of an ABS resin, an aromatic or aliphatic (meth)acrylate resin, a rubber modified vinyl-based graft copolymer resin, and a polyalkyene terephthalate resin.

4. The composition of claim 1 , wherein the particles of the non-conductive metal compound are present in an amount of 0.1 to 7 wt %, based on the total composition.

5. The composition of claim 1 , further comprising at least one additive selected from the group consisting of an inorganic filler, a colorant, a flame retardant, an impact reinforcing agent, and a functional reinforcing agent.

6. A method for forming a conductive pattern by direct electromagnetic wave irradiation, the method comprising:
molding the composition for forming a conductive pattern of claim 1 into a resin product, or applying the composition to another product so as to form a resin layer;
irradiating a predetermined region of the resin product or the resin layer with an electromagnetic wave, so as to generate a metal nuclei including a first metal element, a second metal element, or an ion thereof from the non-conductive metal compound particles; and
chemically reducing or plating the region where the metal nuclei are generated, so as to form a conductive metal layer.

7. The method of claim 6 , wherein the electromagnetic wave is a laser.

8. The method of claim 7 , wherein the laser electromagnetic wave has a wavelength of 248 nm, 308 nm, 355 nm, 532 nm, 755 nm, 1064 nm, 1550 nm, or 2940 nm.

9. The method of claim 6 , wherein as the generating of a metal nuclei proceeds, the particles of the non-conductive metal compound are partially exposed on a surface of a predetermined region of the resin product or the resin layer, and a metal nuclei is generated therefrom, thereby forming an adhesion-activated surface activated so as to have a higher adhesion property.

10. The method of claim 9 , wherein the conductive metal layer is formed on the adhesion-activated surface by electroless plating.

11. A resin component having a conductive pattern, comprising:
a polycarbonate-based resin substrate;
particles of a non-conductive metal compound including a first metal element and a second metal element and having a spinel structure, wherein the particles have a particle diameter of 0.1 to 6 and are dispersed in the polycarbonate-based resin substrate;
an adhesion-activated surface including a metal nuclei including a first metal element, a second metal element or an ion thereof exposed on a surface of a predetermined region of the polycarbonate-based resin substrate; and
a conductive metal layer formed on the adhesion-activated surface.

12. The resin component of claim 11 , wherein the predetermined region where the adhesion-activated surface and the conductive metal layer are formed corresponds to the region of the polycarbonate-based resin substrate irradiated with an electromagnetic wave.

13. The resin component of claim 11 , wherein the conductive metal layer is formed on the polycarbonate-based resin substrate with adhesion strength of a delamination area of the metal layer being 0% (class 0), or more than 0% to 5% or less (class 1), of the area of the target metal layer to be tested, when tested according to the standard ISO 2409.

14. The resin component of claim 11 , having impact strength of 4.0 J/cm or more as measured according to ASTM D256 standard.

15. The composition of claim 1 , wherein the particles of the non-conductive metal compound have a specific surface area of about 0.5 to about 10 m 2 /g.

Assignees

• Lg Chemical Ltd

Inventors

• Jun Shin Hee
• Kim Jae Hyun
• Park Cheol-Hee
• Park Chee-Sung
• Kim Jae Jin
• Jeong Han Nah
• Seong Eun Kyu
• Lee Su Jeong

Classifications

• C23C18/1612

  through irradiation means · CPC title

• H05K3/181

  by electroless plating (adhesives therefor H05K3/387) · CPC title

• C09D5/24

  Electrically-conducting paints {(conductive materials H01B1/00)} · CPC title

• H05K1/0373

  containing additives, e.g. fillers (H05K1/036 takes precedence) · CPC title

• C23C18/1641

  Organic substrates, e.g. resin, plastic · CPC title