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Electrically conductive ink, and laminate having electrically conductive pattern attached thereto and process for production thereof

A technology of conductive ink and conductive pattern, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, conductive layers on insulating carriers, etc., can solve the problems of complicated manufacturing steps, weakening of physical impact, and Many problems, to achieve the effect of excellent resistance value stability

Active Publication Date: 2012-03-28
TOYO INK SC HOLD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Etching is a kind of chemical processing. Although it is mainly processed to obtain the desired pattern shape on the metal film, generally speaking, the manufacturing steps are extremely complicated, and because waste liquid treatment is required in the subsequent steps, it is costly. cost, many problems
In addition, since the conductive circuit formed by etching is made of metal materials such as aluminum or copper, it has the problem of being weakened by physical impacts such as bending.

Method used

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  • Electrically conductive ink, and laminate having electrically conductive pattern attached thereto and process for production thereof
  • Electrically conductive ink, and laminate having electrically conductive pattern attached thereto and process for production thereof
  • Electrically conductive ink, and laminate having electrically conductive pattern attached thereto and process for production thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0255] Example 1

[0256] Mixing with a disperser: the binder (1) solution containing 40 parts by weight of epoxy resin: 100 parts by weight; the metal chelate compound A containing 0.81 parts by weight of ethyl acetoacetate aluminum diisopropionate: 0.9 parts by weight Parts, silver powder A: 330 parts by weight, diethylene glycol monoethyl ether acetate: 40 parts by weight, dispersed with three rolls, and prepared conductive ink.

[0257] The obtained conductive ink had a solid content of about 79% by weight, in a total of 370 parts by weight of the epoxy resin and silver powder, about 89% by weight of the silver powder, and 11% by weight of the epoxy resin.

[0258] Next, using a rheometer (rheometer) "AR-G2" manufactured by TA Instruments Co., Ltd., at a temperature of 25°C, fixed at a frequency of 1 Hz, and under a vibration stress range of 1.0 to 100,000 Pa, dynamics such as the storage elastic coefficient G' were measured. Regarding the viscoelastic properties, the st...

Embodiment 2 to 9、 comparative example 1 to 9

[0259] Examples 2 to 9, Comparative Examples 1 to 9

[0260] Silver powder, binder resin solution, metal chelate, hardener, and solvent were mixed in a disperser at the mixing ratio shown in Tables 1 and 2, and then dispersed with three rolls to prepare conductive ink in the same manner as in Example 1. The properties of the obtained conductive ink were measured by the following methods.

[0261] [Preparation of test piece]

[0262] On a corona-treated polyethylene terephthalate film (hereinafter referred to as PET) with a thickness of 75 μm, the conductive inks of Examples 1 to 12 and Comparative Examples 1 to 9 are screen-printed into a pattern of 15 mm × 30 mm shape, and dried in a 150°C oven for 30 minutes to obtain a conductive printed matter with a film thickness of 8 to 10 μm.

[0263]

[0264] The film thickness of the said printed matter was measured using the MH-15M type measuring device by Sendai Nikon company.

[0265]

[0266] The said printed matter surfa...

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PUM

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Abstract

Disclosed are: a low-temperature-processing-type electrically conductive ink which enables the formation of an extremely fine electrically conductive pattern by screen printing, does not require any specialized process for production thereof, and has excellent resistance value stability; a laminate having an electrically conductive pattern attached thereto, which is produced using the electrically conductive ink; and a process for producing the laminate. The electrically conductive ink comprises electrically conductive particles each having a tap density of 1.0 to 10.0 (g / cm3), a D50 particle diameter of 0.3 to 5 [mu]m and a BET specific surface area of 0.3 to 5.0 m2 / g, an epoxy resin having a number average molecular weight (Mn) of 10,000 to 300,000 and a hydroxy value of 2 to 300 (mgKOH / g), and a metal chelate capable of achieving an alcohol interchange reaction with a hydroxy group in the epoxy resin and contained in an amount of 0.2 to 20 parts by weight relative to 100 parts by weight of the epoxy resin, and has a storage modulus (G') of 5,000 to 50,000 (Pa).

Description

technical field [0001] The present invention relates to a conductive ink, a laminate having a conductive pattern obtained by using the conductive ink, and a manufacturing method thereof. Background technique [0002] An etching method and a printing method are generally known as means for forming an electronic component, a thin film for shielding electromagnetic waves, or a means for forming a conductive circuit. Etching method refers to chemically or electrochemically dissolving and removing the surface or shape of metal, and it has the meaning of processing technology in a broad sense including its surface treatment. Etching is a kind of chemical processing. Although it is mainly processed to obtain the desired pattern shape on the metal film, generally speaking, the manufacturing steps are extremely complicated, and because waste liquid treatment is required in the subsequent steps, it is costly. Fees are very problematic. In addition, since the conductive circuit forme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/00B32B9/00B32B27/38H01B1/22H01B5/14H01B13/00B22F1/00C08G59/22C08L63/00C09D5/24C09D7/12C09D11/02C09D11/033C09D11/52C09D163/00
CPCC09D11/52H01B1/22B32B9/00H01B5/14
Inventor 加藤俊一馆野宏之白石欣也大泉圭
Owner TOYO INK SC HOLD CO LTD
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