# US 11,028,250 B2 · Composition with thermal conductivity and laser plating performance by core-shell structure LDS additive with metal compounds coated on mineral filler surface

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- Number: US 11,028,250 B2
- Document ID: US11028250B2
- Status: Granted
- Kind: B2
- Application number: 16/477,036
- Filed: 2018-01-11
- Published: 2020-08-20
- Granted: 2021-06-08
- Earliest claimed: 2017-01-11
- Assignees: Shpp Global Technologies B.V.
- Applicants: SHPP Global Technologies B.V.
- Inventors: Yaqin Zhang; Jian Wang; Mingcheng Guo; Yunan Cheng; Shijie Song
- Web page: https://patentgrep.com/patent/US11028250B2

## CPC

- C08K 3/04: Carbon
- C08K 3/2279: {of antimony}
- C08K 3/346: {Clay}
- C08K 3/38: Boron-containing compounds
- C08K 7/14: Glass
- C08K 9/12: Adsorbed ingredients {, e.g. ingredients on carriers}
- C23C 18/1641: {Organic substrates, e.g. resin, plastic}
- C08K 2003/2241: {Titanium dioxide}
- C08K 2003/385: {Binary compounds of nitrogen with boron}
- C08K 2201/001: Conductive additives
- C08K 2201/005: Additives being defined by their particle size in general
- C08L 23/06: Polyethylene
- C08L 27/18: Homopolymers or copolymers or tetrafluoroethene
- C08L 69/005: {Polyester-carbonates}
- C08L 2203/20: use in electrical or conductive gadgets
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- 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)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

The disclosure concerns thermally conductive polymer compositions comprising: (a) from about 20 wt % to about 80 wt % of at least one polymer component; (b) from greater than about 0 wt % to about 70 wt % of a thermally conductive filler; and (c) from about 0.1 wt % to about 40 wt % of a laser activatable additive having a core-shell structure; wherein the core comprises an inorganic filler and the shell comprises a laser activatable component; wherein the combined weight percent value of all components does not exceed about 100 wt %; wherein all weight percent values are based on the total weight of the composition; and wherein a molded sample of the blended thermoplastic composition has a through plane thermal conductivity of at least about 0.40 W/m·K when determined in accordance with ASTM E1461.

## Claims

### Claim 1

A thermally conductive polymer composition comprising:
a. from about 20 wt % to about 80 wt % of at least one polymer component, wherein the polymer component comprises a polycarbonate;
b. from greater than about 0 wt % to about 70 wt % of a thermally conductive filler; and
c. from about 0.1 wt % to about 40 wt % of a laser activatable additive having a core-shell structure; wherein the core comprises an inorganic filler and the shell comprises a laser activatable component,
wherein the combined weight percent value of all components does not exceed 100 wt %,
wherein all weight percent values are based on the total weight of the composition,
wherein a molded sample of the composition has a through plane thermal conductivity of at least about 0.40 W/m·K when determined in accordance with ASTM E1461, and wherein a molded sample of the composition exhibits a notched Izod impact strength of at least 66 J/m when tested in accordance with ASTM D256 at 23° C.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the thermally conductive filler comprises: a high thermally conductive filler having a thermal conductivity greater than or equal to about 50 W/m·K; or a low thermally conductive filler having a thermal conductivity from about 10 W/m·K to about 30 W/m·K; or a combination thereof.

### Claim 3 (depends on 2)

The composition of claim 2, wherein the high thermally conductive filler is selected from the group consisting of aluminum nitride AlN, aluminum carbide Al4C3, aluminum oxide Al2O3, boron nitride BN, aluminum oxynitrides AlON, magnesium silicon nitride MgSiN2, silicon carbide SiC, silicon nitride Si3N4, graphite, expanded graphite, graphene, carbon fiber, and combinations thereof.

### Claim 4 (depends on 2)

The composition of claim 2, wherein the low thermally conductive filler is selected from the group consisting of Mg(OH)2 (Magnesium hydroxide), steatite H2Mg3(SiO3)4 (Talc), γ-AlO(OH) (boehmite),α-AlO(OH) (diaspore), Al(OH)3 (gibbsite), CaCO3, mica, barium oxide BaO, barium sulfate BaSO4, wollastonite CaSiO3, zirconium oxide ZrO2, silicon oxide SiO2, glass beads, magnesium aluminate MgO.xAl2O3, dolomite CaMg(CO3)2, ceramic-coated graphite, clay, and combinations thereof.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the shell is a metal, metal oxide, or mixed-metal oxide.

### Claim 6 (depends on 1)

The composition of claim 1, wherein the core is a metal oxide, mica, talc, aluminum nitride AlN, Al4C3, BN, MgSiN2, SiC, Si3N4, graphite, expanded graphite, graphene, carbon fiber, ZnS, glass beads, clay, or a combination thereof.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the shell component has a thickness of from about 1 nm to about 50 μm.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the core has a mean particle size of about 50 nm to about 500 μm.

### Claim 9 (depends on 1)

The composition of claim 1, wherein the core component is about 2% to about 70% by weight, with the balance of the laser activatable additive being the shell.

### Claim 10 (depends on 1)

The composition of claim 1, further comprising glass fiber.

### Claim 11 (depends on 1)

The composition of claim 1, further comprising an organic or inorganic flame retardant.

### Claim 12 (depends on 1)

The composition of claim 1, the polymer component further comprising a chemical reactive or non-chemical reactive impact modifier.

### Claim 13 (depends on 1)

The composition of claim 1, further comprising an additive comprising an antioxidant, a lubricant, a thermal stabilizer, an ultraviolet light absorbing additive, a plasticizer, an anti-dripping agent, a mold release agent, an antistatic agent, a dye, a pigment, or a radiation stabilizer, or a combination thereof.

### Claim 14 (depends on 1)

The composition of claim 1, wherein a molded sample of the composition exhibits a plating index value of at least about 0.6.

### Claim 15 (depends on 1)

An article comprising a composition of claim 1.

### Claim 16 (depends on 15)

The article of claim 15, wherein the article is selected from a computer device, electromagnetic interference device, printed circuit, global positioning system device, cellular antenna device, smart phone device, automotive device, medical device, sensor device, security device, shielding device, shadowless lamp, radiofrequency antenna device, light emitting diode device and radio frequency identification device.

### Claim 17 (depends on 1)

A method of manufacturing an article comprising:
a. molding an article from the composition of claim 1;
b. exposing the laser activatable additive to a laser to form an activated area; and
c. plating a metal layer onto the activated area.

### Claim 18 (depends on 1)

The thermally conductive polymer composition of claim 1, comprising:
a. from about 50 wt % to about 70 wt % of the polymer component;
b. from about 10 wt % to about 20 wt % of the thermally conductive filler; and
c. from about 2 wt % to about 10 wt % of the laser activatable additive.

### Claim 19 (depends on 1)

The composition of claim 1, wherein the core is mica, talc, aluminum nitride AlN, Al4C3, Al2O3, BN, AlON, MgSiN2, SiC, Si3N4, graphite, expanded graphite, graphene, carbon fiber, ZnS, CaO, MgO, ZnO, TiO2, Mg(OH)2,γ-AlO(OH) (boehmite), α-AlO(OH) (diaspore), Al(OH)3 (gibbsite), CaCO3, BaO, BaSO4, CaSiO3, ZrO2, SiO2, glass beads, MgO.xAl2O3, CaMg(CO3)2, clay, or a combination thereof.