TWI466151B - Solvent-containing composition for manufacturing laminated ceramic component and use thereof - Google Patents

Description

Solvent composition for the production of laminated ceramic parts and use thereof

The present invention relates to a laminate which is formed by a paste which is applied to a member having a coated surface (hereinafter, sometimes referred to as a "coated surface member") in a step of manufacturing a laminated ceramic component to form a wiring or a coating film. Solvent composition for the manufacture of ceramic parts.

As the laminated ceramic parts, capacitors, inductors, varistors, thermal resistors, speakers, actuators, antennas, solid oxide fuel cells (SOFC), and the like are known. These are formed by a superposed ceramic layer or a thin layer composed of a ceramic layer and a conductor layer. Capacitors, inductors, varistors, thermistors, speakers, actuators, and antennas are mainly composed of a combination of a ceramic layer and a conductor layer; a solid oxide fuel cell (SOFC) is a layer of a plurality of separate ceramics. The layer is dominated by the master.

In the method of laminating a thin layer such as a ceramic layer, it is known that a paste for forming a wiring or a coating film is applied onto a fired layer, and a method of performing a so-called baking step (continuous firing method) is repeated; A method of forming a layered sheet by coating and drying a paste for forming a wiring or a coating film, and then integrally firing the layered sheet; further, integrally laminating the layered sheet by superposition and pressing, and then integrally laminating method. Among these lamination methods, in view of excellent productivity and cost reduction, a method in which a plurality of layers are laminated before the firing treatment and then integrally fired (integral firing method) is generally employed.

In an example of a laminated ceramic part, a multilayer capacitor can generally be manufactured by the following steps.

1. The ceramic powder is obtained by dispersing a binder resin such as a polyvinyl acetal resin such as polyvinyl butyral or an acrylic resin with a solvent to form a slurry, and forming a green sheet.

2. A conductor paste containing a conductive metal material such as nickel or palladium, an organic solvent such as ethyl cellulose or terpineol as a main component is applied onto a green sheet by a screen printing method or the like to form a wiring or a coating film.

3. Dry the organic solvent in the above conductor paste.

4. The green sheet on which the wiring or the coating film is formed is cut into a predetermined size, and a plurality of sheets are stacked and heated and pressed to form a laminated body.

5. An electrode or the like is mounted on the laminated body, and when it is fired at a high temperature, a laminated ceramic capacitor can be obtained.

In the above step, when the conductor paste is applied onto the green sheet, the organic solvent in the conductor paste may dissolve the binder resin contained in the green sheet. This phenomenon is called the "sheet attack" phenomenon. The phenomenon of sheet invasion causes cavities or wrinkles on the ceramic layer of the laminated ceramic capacitor, which causes a defect in wiring or coating film formation and a decrease in yield of sheets.

These problems are also the same in other laminated ceramic parts manufactured by the integrated firing method. Previously, due to the thick film thickness of each layer, the problem of erosion of the coated surface member was not so great. However, in recent years, with the increase in performance and miniaturization of laminated ceramic parts, it is required to reduce the thickness of the conductor layer and the ceramic layer constituting the device. As a result, erosion of the coated surface member was remarkably observed.

In the method of suppressing the erosion of the coated surface member, various improvements have been made on the improvement of the organic solvent used in the paste for forming the wiring or the coating film. For example, in Patent Documents 1 and 2, an acetate of a terpineol hydride, a terpineol acetate or a terpineol hydride is used as an organic solvent. However, it is difficult to completely prevent the attack on the coated surface member only by using the above organic solvent; in the general use of the polyvinyl butyral resin as the binder resin constituting the coated surface member, the degree of butyralization must also be selected. The lower one. Further, in the case where ethyl cellulose is used as the binder resin for forming the paste of the wiring or the coating film, since the solubility of the ethyl cellulose is low, the viscosity of the paste over time changes greatly, and there is so-called printing. It is easy to cause bad problems.

Further, in Patent Document 3, an organic solvent used for forming a paste of a wiring or a coating film is disclosed using ethyl hexanoate or 2-ethylhexyl acetate. However, in an organic solvent such as ethyl hexanoate or 2-ethylhexyl acetate, the solubility of the binder resin contained in the coated surface member increases due to an increase in temperature in the drying step, so that it is impossible to effectively prevent the pair. The problem of erosion of coated surface members.

It is disclosed in Patent Document 4 that it is produced by using a triacetin (boiling point: 260 ° C) as a base and adding ethyl cellulose in a specific ratio to show a soluble low-boiling organic solvent. The solvent composition can prevent corrosion of the surface member to be coated as an organic solvent for forming a paste for a wiring or a coating film, wherein a polyvinyl acetal resin such as polyvinyl butyral or an acrylic resin is used in the triacetin. The binder resin such as a resin and ethyl cellulose exhibit insolubility, and the triacetin has a boiling point close to the upper limit of the temperature band that can be used in the production step. However, after applying the paste containing the solvent composition, it takes a long time to heat and dry at normal pressure. However, it is seen that the laminate is softened and deformed by a polyvinyl acetal resin as a binder resin due to long-time heating. The problem. In addition, in recent years, the thickness of each of the laminated ceramic parts has become thinner, and the number of laminated layers tends to increase. Since each layer takes the same drying time as before, the manufacturing time of each laminated ceramic part is prolonged, so There is a problem of so-called low productivity. Therefore, when a paste in which a wiring or a coating film is formed is applied to a surface member to be coated, a solvent which evaporates in a short period of time under a drying condition (for example, 40 to 100 ° C) which does not evaporate or under low temperature is required. However, Patent Document 4 In the solvent composition described, since a large amount of triacetin having a slow evaporation rate under the above-described low-temperature drying conditions is contained, it is difficult to shorten the drying time under low temperature conditions.

Prior technical literature Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 07-240340

Patent Document 2: Japanese Patent No. 2976268

Patent Document 3: Japanese Laid-Open Patent Publication No. 2005-116504

Patent Document 4: Japanese Laid-Open Patent Publication No. 2009-147202

Therefore, an object of the present invention is to provide a solvent composition for producing a laminated ceramic part which can sufficiently exhibit the adhesive property of an adhesive resin such as ethyl cellulose, and can be excellent in accuracy without causing corrosion to the surface member to be coated. The fine pattern or film is formed, and evaporative drying is easy and the production efficiency of the laminated ceramic member can be remarkably improved.

In order to solve the above problems, the inventors of the present invention have found that if the solubility of ethyl cellulose is high, and the degree of butyralization of the polyvinyl butyral resin is broad, the solvent composition is insoluble, that is, for B. The base cellulose and the polyvinyl acetal resin have excellent balance of solubility, and are selected from alkylene glycol dialkyl ethers having a low boiling point (the terminal ether chain is asymmetric), dialkyl alkyl dioxane At least one of a solvent of a base ether (asymmetric terminal ether chain) and an alkyl lactate acetate can be used as a solvent composition for the production of a laminated ceramic part to form a fine pattern or film with high precision, and is prevented from being coated. The erosion of the surface member reduces the time required for evaporation drying, so that the softening and deformation of the laminated sheet can be prevented, and the manufacturing efficiency of the laminated ceramic part can be remarkably improved. The present invention has been completed based on these findings.

That is, the present invention provides a solvent composition for producing a laminated ceramic part comprising a selected from the group consisting of alkylene glycol dialkyl ethers (the terminal ether chain is asymmetric) and dialkyl alkyl glycol dialkyl ether (end) At least one of an ether chain is asymmetric) and an alkyl lactate acetate.

The solvent composition for producing a laminated ceramic part according to the present invention contains a propylene glycol methyl propyl ether, propylene glycol butyl methyl ether, propylene glycol methyl amyl ether, dipropylene glycol methyl propyl ether, dipropylene glycol butyl group. At least one of a group ether, dipropylene glycol methyl amyl ether and ethyl lactate acetate is preferred.

In the case of laminated ceramic parts, a laminated ceramic capacitor is preferred.

The solvent composition for producing a laminated ceramic part of the present invention contains a dialkyl ether selected from an alkylene glycol dialkyl ether (the terminal ether chain is asymmetric) and a dialkyl alkyl glycol dialkyl ether (the terminal ether chain is not At least one of symmetrical) and alkyl lactate acetate, and such a polyvinyl acetal resin such as polyvinyl butyral used as a binder resin when forming a coated surface member is not dissolved, and has a dissolution forming wiring or Since the paste of the coating film has properties such as ethyl cellulose used as the binder resin, it is formed by mixing a conductive metal material such as nickel or palladium or a ceramic material and a binder resin such as ethyl cellulose. The paste of the coating film can form a fine pattern or a film with high precision, and can correspond to the miniaturization and high-density wiring of the wiring pattern or the coating film. Moreover, it is possible to exhibit an effect of suppressing or preventing the erosion of the excellent coated surface member. Moreover, an alkyl diol dialkyl ether (the terminal ether chain is asymmetric), a dialkyl diol dialkyl ether (the terminal ether chain is asymmetric), and an alkyl lactate acetate, even at low temperatures Underneath, it can still dry quickly and shorten the drying time. Thereby, softening and deformation of the laminated sheet in the heating and drying step can be prevented, and the manufacturing efficiency of the laminated ceramic part can be remarkably improved.

[Pattern for implementing the invention]

The solvent composition for producing a laminated ceramic part of the present invention contains a selected from the group consisting of alkylene glycol dialkyl ether (the terminal ether chain is asymmetric) and dialkyl alkyl glycol dialkyl ether (the terminal ether chain is not At least one of symmetrical) and alkyl lactate acetate is characterized. Further, the solvent composition for producing a laminated ceramic part of the present invention does not need to be blended with triacetin, and it is preferably less than 1% by weight even if it is blended.

In the solvent composition for producing a laminated ceramic part according to the present invention, it is selected from an alkylene glycol dialkyl ether (the terminal ether chain is asymmetric) and a dialkyl alkyl glycol dialkyl ether (the terminal ether chain is The content of at least one of the asymmetry) and the alkyl lactate acetate (inclusive of two or more kinds thereof, in terms of the total content thereof) is, for example, 50% by weight or more, and preferably 80% by weight or more, and preferably 90% by weight. More than % is particularly good, and 95% by weight or more is the best.

Examples of the alkylene glycol dialkyl ether (the terminal ether chain is asymmetric) include, for example, ethylene glycol ethyl methyl ether, ethylene glycol methyl propyl ether, ethylene glycol butyl methyl ether, and B. Glycol methyl amyl ether, ethylene glycol ethyl propyl ether, ethylene glycol butyl ethyl ether, ethylene glycol ethyl amyl ether, ethylene glycol butyl propyl ether, ethylene glycol pentyl propyl Ethylene glycol dialkyl ethers having different terminal ether chain groups such as ether and ethylene glycol butyl amyl ether (linear and branched differences are also considered as different species); propylene glycol ethyl methyl ether, propylene glycol methyl Propyl ether, propylene glycol butyl methyl ether, propylene glycol methyl amyl ether, propylene glycol ethyl propyl ether, propylene glycol butyl ethyl ether, propylene glycol ethyl amyl ether, propylene glycol butyl propyl ether, propylene glycol pentyl propyl ether A propylene glycol dialkyl ether having different terminal ether chain groups such as propylene glycol butyl amyl ether (linear or branched differences are also considered as different species) (including isomers) and the like. Among these, propylene glycol methyl propyl ether, propylene glycol butyl methyl ether, and propylene glycol methyl amyl ether are preferably used.

As the dialkyl alkyl glycol dialkyl ether (the terminal ether chain is asymmetric), for example, diethylene glycol ethyl methyl ether, diethylene glycol methyl propyl ether, diethylene glycol butyl group can be cited. Ether, diethylene glycol methyl amyl ether, diethylene glycol ethyl propyl ether, diethylene glycol butyl ethyl ether, diethylene glycol ethyl amyl ether, diethylene glycol butyl Diethylene glycol dialkyl ethers having different terminal ether chains such as ether, diethylene glycol pentyl propyl ether and diethylene glycol butyl amyl ether (linear and branched differences are also considered as different species) Dipropylene glycol ethyl methyl ether, dipropylene glycol methyl propyl ether, dipropylene glycol butyl methyl ether, dipropylene glycol methyl amyl ether, dipropylene glycol ethyl propyl ether, dipropylene glycol butyl ethyl ether, dipropylene glycol Dipropylene glycol dialkyl ethers with different terminal ether chain groups such as ethyl amyl ether, dipropylene glycol butyl propyl ether, dipropylene glycol pentyl propyl ether, dipropylene glycol butyl amyl ether (straight chain, branched chain difference) Also considered as different species (including isomers). Among these, dipropylene glycol methyl propyl ether, dipropylene glycol butyl methyl ether, and dipropylene glycol methyl amyl ether are preferably used.

In the case of the alkyl lactate acetate, the alkyl group may be any of a linear alkyl group or a branched alkyl group, and examples thereof include methyl lactate acetate, ethyl lactate acetate, and propyl lactate acetate. And isopropyl lactate acetate, butyl lactate acetate, and butyl lactate acetate. In the present invention, it is preferred to use ethyl lactate acetate among these.

The alkylene glycol dialkyl ether (the terminal ether chain is asymmetric), the dialkyl alkyl glycol dialkyl ether (the terminal ether chain is asymmetric) and the alkyl lactate acetate in the present invention In particular, those having a boiling point of 125 ° C or more and 250 ° C or less are preferred. When the boiling point exceeds the above range, there is a tendency that it is difficult to rapidly dry at a low temperature condition; on the other hand, if the boiling point is lower than the above range, the solvent volatilizes when the paste for forming a wiring or a coating film is adjusted or coated, and has a composition. After the change, there is a tendency that it is difficult to form a stable wiring or a coating film.

Further, in the present invention, in addition to the above alkylene glycol dialkyl ether (the terminal ether chain is asymmetric), the dialkyl alkyl glycol dialkyl ether (the terminal ether chain is asymmetric) and the lactate B Other than the acid ester, it is not necessary to add another solvent. However, other organic solvents and additives may be added to the extent that the effect is not impaired, and the physical properties may be adjusted in accordance with the use. Examples of the solvent to be added include a cycloalkanol, a cycloalkyl acetate, an alkylene glycol, an alkylene glycol diacetate, an alkylene glycol monoalkyl ether, and the like. Alkylene glycol dialkyl ether, alkylene glycol monoalkyl ether acetate, dialkyl alkyl glycol monoalkyl ether, dialkyl alkyl glycol dialkyl ether other than the above, dialkylene Glycol monoalkyl ether acetate, trialkylene glycol monoalkyl ether, trialkylene glycol monoalkyl ether acetate, 3-methoxybutanol, 3-methoxybutyl Alcohol acetate, tetrahydrofurfuryl alcohol, tetrahydrofurfuryl acetate, anthraquinone compounds and derivatives thereof, and the like.

Examples of the cycloalkanol include cyclohexanol, cyclopentanol, cyclooctanol, methylcyclohexanol, ethylcyclohexanol, propylcyclohexanol, isopropylcyclohexanol, and butyl ring. a cycloalkanol having a substituent such as a C _1-5 alkyl group such as hexanol, isobutylcyclohexanol, secondary butyl cyclohexanol, tert-butylcyclohexanol or pentylcyclohexanol; 15 members of cycloalkanol and the like.

Examples of the cycloalkyl acetate include cyclohexyl acetate, cyclopentyl acetate, cyclooctyl acetate, methylcyclohexyl acetate, ethylcyclohexyl acetate, propylcyclohexyl acetate, and isopropyl acetate. Cyclohexyl ester, butylcyclohexyl acetate, isobutylcyclohexyl acetate, secondary butylcyclohexyl acetate, tertiary butylcyclohexyl acetate, pentylcyclohexyl acetate, etc. have C _1-5 a cycloalkyl acetate of a substituent such as an alkyl group; a cycloalkane acetate of 3 to 15 members.

The alkylene glycol may, for example, be ethylene glycol, propylene glycol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 1, 6-hexanediol and the like.

Examples of the alkylene glycol diacetate include ethylene glycol diacetate, propylene glycol diacetate, 1,3-propanediol diacetate, and 1,3-butylene glycol diacetate. Ester, 1,4-butanediol diacetate, 1,5-pentanediol diacetate, 1,6-hexanediol diacetate, and the like.

Examples of the alkylene glycol monoalkyl ethers include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, and ethylene glycol. Ethylene glycol mono C _1-5 alkyl ether such as monopentyl ether; propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol monopentyl ether, etc. _1-5 alkyl ether and the like.

Examples of the alkylene glycol dialkyl ethers include ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dipropyl ether, ethylene glycol dibutyl ether, and ethylene glycol. Ethylene glycol C _1-5 alkyl C _1-5 alkyl ether such as dipentyl ether; propylene glycol dimethyl ether, propylene glycol diethyl ether, propylene glycol dipropyl ether, propylene glycol dibutyl ether, propylene glycol dipentyl Propylene glycol such as ether C _1-5 alkyl C _1-5 alkyl ether or the like.

Examples of the alkylene glycol monoalkyl ether acetate include ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, and ethylene glycol monopropyl ether acetate. Ethylene glycol mono C _1-5 alkyl ether acetate such as ester, ethylene glycol monobutyl ether acetate, ethylene glycol monopentyl ether acetate; propylene glycol monoethyl ether acetate, propylene glycol single Propylene glycol mono C _1-5 alkyl ether acetate such as propyl ether acetate, propylene glycol monobutyl ether acetate or propylene glycol monopentyl ether acetate (including an isomer).

The dialkylene glycol monoalkyl ether may, for example, be diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether or diethylene glycol monobutyl. Diethylene glycol mono C _1-5 alkyl ether such as ether, diethylene glycol _monopentyl ether; dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl Dipropylene glycol mono C _1-5 alkyl ether or the like (including an isomer) such as a base ether or a dipropylene glycol _monopentyl ether.

The dialkylene glycol dialkyl ether may, for example, be diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dipropyl ether or diethylene glycol dibutylate. Diethylene glycol C _1-5 alkyl C _1-5 alkyl ether such as ether, diethylene glycol dipentyl ether; dipropylene glycol dimethyl ether, dipropylene glycol diethyl ether, dipropylene glycol dipropyl ether And dipropylene glycol C _1-5 alkyl C _1-5 alkyl ether such as dipropylene glycol dibutyl ether or dipropylene glycol dipentyl ether (including an isomer).

The dialkylene glycol monoalkyl ether acetate may, for example, be diethylene glycol monomethyl ether acetate, diethylene glycol monopropyl ether acetate or diethylene glycol monobutyl. Diethylene glycol mono C _1-5 alkyl ether acetate such as ether ether acetate, diethylene glycol _monopentyl ether acetate; dipropylene glycol monoethyl ether acetate, dipropylene glycol monopropyl ether Dipropylene glycol mono C _1-5 alkyl ether acetate or the like (including an isomer) such as acetate, dipropylene glycol monobutyl ether acetate or dipropylene glycol monopentyl ether acetate.

Examples of the trialkylene glycol monoalkyl ether include triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monopropyl ether, and triethylene glycol monobutyl. Triethylene glycol mono C _1-5 alkyl ether such as ether, triethylene glycol _monopentyl ether; tripropylene glycol monomethyl ether, tripropylene glycol monoethyl ether, tripropylene glycol monopropyl ether, tripropylene glycol monobutyl A tripropylene glycol mono C _1-5 alkyl ether or the like (including an isomer) such as an ether or tripropylene glycol _monopentyl ether.

Examples of the trialkylene glycol monoalkyl ether acetate include triethylene glycol monomethyl ether acetate, triethylene glycol monoethyl ether acetate, and triethylene glycol monopropyl acetate. Triethylene glycol mono C _1-5 alkyl ether acetate such as ether ether acetate, triethylene glycol monobutyl ether acetate, triethylene glycol monopentyl ether acetate; tripropylene glycol monomethyl Tripropylene glycol mono C, such as ether ether acetate, tripropylene glycol monoethyl ether acetate, tripropylene glycol monopropyl ether acetate, tripropylene glycol monobutyl ether acetate, tripropylene glycol monopentyl ether acetate _1-5 alkyl ether acetate, etc. (including isomers).

Examples of the lanthanoid compound and its derivative include terpineol, terpineol acetate, dihydroterpineol, indoline alcohol acetate, dihydrofurfuryl alcohol propionate, and hydrazine. Alkene, menthane, menthol, and the like.

According to the above-described configuration, the solvent composition for the production of the laminated ceramic parts of the present invention can sufficiently exhibit the adhesive properties of the binder resin such as ethyl cellulose, and can form the fine pattern or the film with high precision without causing corrosion to the surface to be coated. And evaporative drying is easy and can significantly improve the production efficiency of laminated ceramic parts. The solvent composition for manufacturing a laminated ceramic part according to the present invention is a laminated ceramic part (especially a laminated layer) as a capacitor, an inductor, a varistor, a thermistor, a speaker, an actuator, an antenna, a solid oxide fuel cell (SOFC), or the like. Ceramic capacitors are useful for the solvent composition for manufacturing.

[Examples]

Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited by the examples.

Examples 1 to 7 and Comparative Examples 1 to 6

In the solvent composition described in the following Table 1, "S-LEC BL-S" (trade name, manufactured by Sekisui Chemical Co., Ltd.) was added as a polyvinyl butyral resin so that the resin concentration was 5% by weight. "S-LEC BL-1" (trade name, manufactured by Sekisui Chemicals Co., Ltd.), "S-LEC BH-3" (trade name, manufactured by Sekisui Chemical Co., Ltd.), and "Ethocel STD" as ethyl cellulose (trade name, manufactured by Dow Chemical Co., Ltd.), and then heated and dissolved at a liquid temperature of 65 ° C for 3 hours, and then allowed to cool.

Evaluation

In the examples and comparative examples, the time at which the liquid was heated at 65 ° C for 3 hours, the time of the heat-dissolving operation (described as "65 ° C" in the following table), and the subsequent cooling at room temperature (25 ° C) (in the table below) It is described as "room temperature", and whether the resin exhibits solubility in each solvent composition by visual observation is evaluated by the following criteria, and the solvent performance of each solvent composition is comprehensively evaluated based on the following criteria.

<Evaluation criteria of resin solubility>

◎: The resin is completely dissolved

○: The resin is roughly dissolved

△: Part of the resin is dissolved

×: resin is insoluble

<Evaluation criteria of solvent performance of solvent composition>

Any of "S-LEC BL-S", "S-LEC BL-1", and "S-LEC BH-3" exhibits insolubility (Δ or ×) at room temperature (25 ° C), and Solvent composition of "Ethocel STD" completely dissolved (◎): ○ (It is not easy to cause sheet attack, and it can exhibit the adhesive properties of ethyl cellulose).

Solvent composition other than the above: ×

The abbreviations in the table are as follows.

DPNMP: Dipropylene glycol methyl propyl ether (made by Daicel Chemical Industry Co., Ltd.)

ELA: Ethyl lactate acetate (Daicel Chemical Industry Co., Ltd.)

PNBM: propylene glycol butyl methyl ether (manufactured by Daicel Chemical Industry Co., Ltd.)

PNMP: propylene glycol methyl propyl ether (made by Daicel Chemical Industry Co., Ltd.)

DPNBM: Dipropylene glycol butyl methyl ether (Daicel Chemical Industry Co., Ltd.)

PNMPE: propylene glycol methyl amyl ether (Daicel Chemical Industry Co., Ltd.)

DPNMPE: Dipropylene glycol methyl amyl ether (Daicel Chemical Industry Co., Ltd.)

α-TPO: α-terpineol (manufactured by Tokyo Chemical Industry Co., Ltd., reagent)

Menthol: Dihydrofurfuryl alcohol (made by Nippon Spice Co., Ltd.)

Menthol AC: Dihydrofurfuryl alcohol acetate (manufactured by Nippon Spice Co., Ltd.)

Triacetin: glycerin triacetate (Daicel Chemical Industry Co., Ltd.)

DMM: Dipropylene glycol dimethyl ether (manufactured by Daicel Chemical Industry Co., Ltd.)

Diglyme: Diethylene glycol dimethyl ether (manufactured by Wako Pure Chemical Industries Co., Ltd., reagent).

Claims (4)

A solvent composition for forming a paste for forming a wiring or a coating film on a laminated ceramic layer, which comprises a solvent selected from the group consisting of propylene glycol dialkyl ether (terminal ether chain is asymmetric), dipropylene glycol dialkyl ether (terminal ether chain) It is at least one of asymmetry) and alkyl lactate acetate. A solvent composition for forming a wiring or a coating paste for a laminated ceramic layer according to the first aspect of the patent application, which comprises a propylene glycol methyl propyl ether, propylene glycol butyl methyl ether, propylene glycol methyl amyl group. At least one of ether, dipropylene glycol methyl propyl ether, dipropylene glycol butyl methyl ether, dipropylene glycol methyl amyl ether, and ethyl lactate acetate. A solvent composition for forming a paste for a wiring or a coating film on a laminated ceramic layer according to the first or second aspect of the patent application is used for producing a laminated ceramic capacitor. A use of a solvent composition for forming a wiring or a coating film for a laminated ceramic layer, the solvent composition comprising a propylene glycol dialkyl ether (a terminal ether chain is asymmetric), a dipropylene glycol dialkyl ether (terminal ether) At least one of a chain is asymmetric) and an alkyl lactate acetate.