Silver paste and coatings produced therefrom

A silver paste and silver alloy technology, applied in coatings, rosin coatings, metal-free paints, etc., can solve the problems of unstable metal decorations and insufficient adhesion between metal decorations and substrates, and achieve high metal decoration. Glossy, good adhesion effect

Pending Publication Date: 2021-03-16
MERCK PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, if the SiO of the ornament 2 If the content is too low, insufficient adhesion of the metal decoration to the substrate is also a problem
[0006] In particular, it is disadvantageous that metal decorations known in the prior art are exposed to H-containing 2 Unstable in the atmosphere of S

Method used

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  • Silver paste and coatings produced therefrom
  • Silver paste and coatings produced therefrom
  • Silver paste and coatings produced therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Will consist of 50% Dymerex TM A resin solution prepared with (rosin resin from Eastman) and 50% 1-methoxy-2-propanol was used as a binder. First 3 g of the above solution are introduced. Then add 4 g of silver nanoparticle paste (D 50 =70nm,D 90 =115nm, in ethanol, solid content is 45%, NanoComposix), 2g of polymer mixture (Dowsil TM Fluid 593: Dimethicone / silicone resin blend, Dow Chemicals), 0.1 g of platinum resinate MR7801-P (Alfa Chemistry), 0.2 g of bismuth(III) 2-ethylhexanoate (ABCR) and 0.7 g of 1-methoxy-2-propanol. The resulting mixture was stirred until homogeneous.

[0105] The silver paste obtained in this way, which is particularly suitable for brushing, is then applied to the glass by brushing. After drying, the decorated glass was sintered at 560 °C for 30 minutes. In this way, a particularly lustrous dark platinum-like decoration is obtained on glass surfaces.

Embodiment 2

[0107] Will consist of 70% Dymerex TM A resin solution prepared with (rosin resin from Eastman) and 30% Dowanol DPM (dipropylene glycol monomethyl ether) was used as a binder. First 4 g of the above solution are introduced. Then add 4 g of silver nanoparticle paste (D 50 =70nm,D 90 = 115 nm, in ethanol, solids content 45%, NanoSaar AG), 1 g of polymer mixture (Dowsil TM Fluid 593: Dimethicone / silicone resin blend, Dow Chemicals), 0.1 g of platinum resinate MR7801-P (Alfa Chemistry), 0.2 g of bismuth(III) 2-ethylhexanoate (ABCR) and 0.7 g of 1-methoxy-2-propanol. The resulting mixture was stirred until homogeneous.

[0108] The viscous silver paste suitable for printing obtained in this way was then applied to the glass. After drying, the decorated glass was sintered at 560 °C for 30 minutes. In this way, a lustrous platinum-like decoration is obtained on the glass surface.

Embodiment 3

[0110] Will consist of 60% Poly-Pale TM (Partially dimerized rosin resin from Eastman) and 40% terpineol were used as binders. First 4 g of the above solution are introduced. Then add 4 g of silver nanoparticle paste (D 50 =70nm,D 90 = 115 nm, in DPM, 45% solids, DOWA Electronics Materials Co., Ltd.), 1 g of polymer mixture (DX175 from Shin-Etsu), 0.1 g of platinum resinate (Fuji), 0.2 g of 2 - Bismuth(III) ethylhexanoate and 0.7 g of 1-methoxy-2-propanol. The resulting mixture was stirred until homogeneous.

[0111] The resulting metal paste was then applied on glass by screen printing. After drying, the decorated glass was sintered at 560 °C for 30 minutes. In this way, a silky platinum-like decoration is obtained.

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Abstract

The invention relates to an oxidation-stable silver paste comprising silver nanoparticles, and to the use of such a paste for producing decorative elements with metallic luster on articles having silicate outer surfaces, such as porcelains, ceramics, bone porcelains, glasses or enamels, metal coatings on such substrates, and to a method for producing such coatings.

Description

technical field [0001] The present invention relates to an oxidation-stable silver paste comprising silver nanoparticles and to the use of this paste for the production of decorative elements with a metallic luster on articles having a silicate outer surface, such as porcelain, ceramics, bone china, glass or enamel , Metallic coatings on such substrates and methods of producing such coatings. Background technique [0002] Decorative metallic coatings are highly desirable for a variety of merchandise and architectural decorative elements. In particular, decorative elements colored with precious metals such as gold, palladium and platinum provide such goods with a sense of value and uniqueness. [0003] Typically, precious metal-containing formulations for the decoration of glass, porcelain, bone china, ceramic or similar surfaces consist of fluxes, binders and solutions of organogold, organopalladium and / or organoplatinum compounds dissolved in suitable organic solvents. co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D193/04C09D183/04C09D5/38C09D7/65C09D7/20C03C17/00C22C32/00
CPCC09D193/04C09D183/04C09D5/38C09D7/65C09D7/20C03C17/009C22C32/0094C08K2003/0806C08K2201/011C03C2217/72C03C2218/114C03C2218/32C03C2218/119C03C2218/112C08L83/04C08K3/08C08L93/04C08L83/14B41M1/34B41M5/007H01B1/22C09D17/006B82Y40/00C08K5/098C08K2201/003C08L83/16
Inventor A·基利安L·马利格林冠群
Owner MERCK PATENT GMBH
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