# US 9,435,035 B2 · Metalized plastic articles and methods thereof

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- Number: US 9,435,035 B2
- Document ID: US9435035B2
- Status: Granted
- Kind: B2
- Application number: 13/103,859
- Filed: 2011-05-09
- Published: 2011-09-01
- Granted: 2016-09-06
- Earliest claimed: 2010-01-15
- Assignees: BYD Company Limited
- Applicants: Qing Gong; Liang Zhou; Weifeng Miao; Xiong Zhang
- Inventors: Qing Gong; Liang Zhou; Weifeng Miao; Xiong Zhang
- Web page: https://patentgrep.com/patent/US9435035B2

## CPC

- C23C 28/021: {including at least one metal alloy layer}
- B05D 1/36: Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D 3/06: by exposure to radiation (B05D3/02 takes precedence {; plasma treatment B05D3/141})
- B05D 7/54: {No clear coat specified}
- C23C 18/1641: {Organic substrates, e.g. resin, plastic}
- C23C 18/20: of organic surfaces, e.g. resins
- C23C 18/2006: {by other methods than those of C23C18/22 - C23C18/30}
- C23C 18/204: {Radiation, e.g. UV, laser}
- C23C 18/50: with alloys based on iron, cobalt or nickel
- C25D 5/56: of plastics
- Y10T 428/12569: Synthetic resin
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- C25D: PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Metalized plastic substrates, and methods thereof are provided herein. The method includes providing a plastic having a plurality of accelerators dispersed in the plastic. The accelerators have a formula ABO3, wherein A is one or more elements selected from Groups 9, 10, and 11 of the Periodic Table of Elements, B is one or more elements selected from Groups 4B and 5B of the Periodic Table of Elements, and O is oxygen. The method includes the step of irradiating a surface of plastic substrate to expose at least a first accelerator. The method further includes plating the irradiated surface of the plastic substrate to form at least a first metal layer on the at least first accelerator, and then plating the first metal layer to form at least a second metal layer.

## Claims

### Claim 1

A method of metalizing a plastic substrate comprising:
providing a plastic substrate having a plastic and a plurality of accelerators dispersed in the plastic, the accelerators having a formula ABO3, wherein A is one or more elements selected from Groups 9, 10, 11 of the Periodic Table of Elements and optionally one or more elements selected from Groups 1 and 2, and the lanthanide series of the Periodic Table of Elements, B is one or more elements selected from Groups 4B and 5B of the Periodic Table of Elements, and O is oxygen;
irradiating a surface of the plastic substrate to expose at least a first accelerator without reducing the accelerators to pure metals;
plating the irradiated surface of the plastic substrate to form at least a first metal layer on the at least first accelerator; and
plating the first metal layer to form at least a second metal layer.

### Claim 2 (depends on 1)

The method of claim 1, wherein the accelerator has a first valance state before the irradiation step and the accelerator as about the same valance state after the irradiation step.

### Claim 3 (depends on 1)

The method of claim 1, wherein the at least one element of the accelerator has a first valance state before the irradiation step and the accelerator as about the same valance state after the irradiation step.

### Claim 4 (depends on 3)

The method of claim 3, wherein the at least one element of the accelerator is copper.

### Claim 5 (depends on 1)

The method of claim 1, wherein the plastic is selected from group consisting of a thermoplastic and a thermoset; the accelerator has a perovskite structure; the accelerator is evenly distributed throughout the plastic; the irradiated surface of the plastic substrate is copper-plated or nickel plated; the surface of the plastic substrate is irradiated by exposure to a laser radiation; and the first metal layer is electroplated or chemical plated.

### Claim 6 (depends on 1)

The method of claim 1, wherein the plastic substrate may be provided by a molding process selected from a group consisting of injection molding, blow molding, extraction molding, and hot press molding.

### Claim 7 (depends on 5)

The method of claim 5, wherein the laser radiation has a wave length of about 157 nanometers to about 10.6 microns.

### Claim 8 (depends on 5)

The method of claim 5, wherein the metal layers have a structure selected from the group consisting of Ni—Cu—Ni; Ni—Cu—Ni—Au; Cu—Ni; and Cu—Ni—Au.

### Claim 9 (depends on 8)

The method of claim 8, wherein the nickel layers each have a thickness ranging from about 0.1 microns to about 50 microns; the copper layers each have a thickness ranging from about 0.1 microns to about 100 microns; and the aurum layers each have a thickness ranging from about 0.01 microns to about 10 microns.

### Claim 10 (depends on 1)

The method of claim 1, wherein the accelerators each have an average diameter ranging from about 20 nanometers to about 100 microns.

### Claim 11 (depends on 1)

The method of claim 1, wherein the accelerator is selected from the group consisting of: Na0.04Ca0.98Cu3Ti4O12, La0.01Ca0.99Cu3Ti4O12, CuTiO3, CuNiTi2O6, CuNbO3, CuTaO3 and CuZrO3.

### Claim 12 (depends on 1)

The method of claim 1, wherein the accelerator is about 1 wt % to about 40 wt % of the plastic substrate.

### Claim 13 (depends on 1)

The method of claim 1, wherein the plastic further comprises at least one additive selected from the group consisting of: an antioxidant, a light stabilizer, a lubricant, and inorganic fillers.
