KR100575043B1 - Two-component type water-soluble adhesive composition for electric home appliances and metal furniture - Google Patents

Abstract

The present invention relates to a two-component aqueous adhesive composition for household appliances and furniture comprising a surface of a metal, in particular, a rubber latex or emulsion resin, a metal adhesion enhancer, an aqueous solution or emulsion containing OH groups, an inorganic filler, and water It relates to a two-component aqueous adhesive composition for household appliances and metal furniture comprising a curing agent containing a and an isocyanate compound.

The two-component aqueous adhesive composition for household appliances and metal furniture of the present invention is not environmentally friendly and human-friendly because it does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, and fluorine-containing compounds. It has excellent adhesion and durability to metal surfaces, and has excellent effects of heat resistance, moisture resistance, and workability.

Water-based adhesives, home appliances, metal furniture, environmentally friendly, human-friendly, heat resistance, moisture resistance

Description

Two-component aqueous adhesive composition for home appliances and metal furniture {TWO-COMPONENT TYPE WATER-SOLUBLE ADHESIVE COMPOSITION FOR ELECTRIC HOME APPLIANCES AND METAL FURNITURE}

The present invention relates to a two-component aqueous adhesive composition for home appliances and metal furniture, and more particularly, does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, fluorine-containing compounds, etc. The present invention relates to a two-component aqueous adhesive composition for household appliances and metal furniture, which is not only friendly and human-friendly, but also has excellent adhesion and durability to metal surfaces, and which has excellent heat resistance, moisture resistance, and workability.

Currently, home appliances and metal furniture are produced by bonding a high pressure melamin sheet (HPM) or veneer to the metal surface for an elegant appearance. Furniture made of metal frame is produced by attaching melamine impregnating plate or veneer to the surface with particle board on the particle board, and home appliances made of metal also attach the melamine impregnating plate or veneer to the metal surface to protect the metal itself. The method of improving the appearance is mainly used.

However, in the case of the metal furniture, the adhesive used for the production of the particle board and the adhesion of the melamine impregnated plate has various problems such as continuously discharging harmful substances to the human body, and in the case of home appliances have the same problem. There is a situation.

Conventionally, an organic solvent adhesive has been mainly used as an adhesive for attaching a melamine impregnated plate or veneer to a metal surface.

While the organic solvent-based adhesive has a high adhesive strength to the molded product is relatively hard enough to be used in a variety of applications, there is a risk of fire, release of toxic substances including formaldehyde, ozone depletion, flammable, fluorine-containing Due to problems such as the occurrence of compounds, they are subject to environmental regulations, and use of toxic organic solvents such as benzene, toluene, and xylene causes problems such as headaches and shortness of breath due to severe chemical smell during work. .

Recently, an aqueous adhesive has been gradually developed as a substitute for an organic solvent adhesive.

As the water-based adhesive, a water-soluble vinyl acetate-based adhesive was used, but in this case, the curing time is not less than 1 hour, it is applicable only to wood, there is a problem that can not be used for curved surface processing. In addition, the adhesive strength for bonding the molded product to the adhesive is still insufficient, and when used in home appliances, it is difficult to use because it lacks heat resistance and moisture resistance.

Therefore, there is a need for further research on an adhesive that can release not only formaldehyde and an organic solvent, but also be human-friendly and environmentally friendly, and at the same time, improve adhesion, heat resistance, and moisture resistance to metals.

In order to solve the problems of the prior art as described above, the present invention does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, fluorine-containing compounds, etc. It is easy for the worker to work without restraining the odor, and can be used comfortably without feeling the discomfort like piercing the tip of the nose to provide a two-component aqueous adhesive composition for human-friendly appliances and metal furniture For the purpose of

Another object of the present invention is to provide a two-component aqueous adhesive composition for home appliances and metal furniture that is not only environmentally friendly and human-friendly, but also has excellent adhesion and durability to metal surfaces and can significantly improve heat resistance and moisture resistance. will be.

Still another object of the present invention is to provide a two-component aqueous adhesive composition for household appliances and metal furniture having excellent workability such as spreader property and pot life by controlling viscosity deformation and flowability.

In order to achieve the above object, the present invention is a two-component aqueous adhesive composition for home appliances and furniture comprising a surface of a metal,

a) i) 20 to 100 parts by weight of rubber latex or emulsion resin;

  Ii) 1 to 50 parts by weight of the metal adhesion enhancer;

  V) 1 to 50 parts by weight of an aqueous OH group-containing polymer solution or emulsion;

  Iii) 5 to 100 parts by weight of an inorganic filler; And

  Iii) 1 to 50 parts by weight of water

  Subject containing; And

b) hardeners containing isocyanate compounds

It provides a two-component aqueous adhesive composition for home appliances and metal furniture comprising a 10: 0.5 to 2.0 by weight ratio.

Hereinafter, the present invention will be described in detail.

The two-component aqueous adhesive composition for household appliances and metal furniture of the present invention is 20 to 100 parts by weight of rubber latex or emulsion resin, 1 to 50 parts by weight of metal adhesion enhancer, 1 to 50 parts by weight of OH group-containing polymer aqueous solution or emulsion, inorganic filler 5 To 100 parts by weight, and a curing agent containing a main and an isocyanate compound containing 1 to 50 parts by weight of water in a weight ratio of 10: 0.5 to 2.0, the aqueous adhesive composition comprises a formaldehyde and an organic solvent It is environmentally friendly and human-friendly because it is not used, has excellent adhesion and durability to the metal surface, and can exhibit excellent heat resistance, moisture resistance, and workability.

The rubber latex or emulsion resin of a) iii) used in the subject of the aqueous adhesive composition of the present invention is used as the main component in the subject.

The rubber latex is chloroprene rubber (CR), styrene-butadiene rubber (styrene-butadiene rubber (SBR), or acrylonitrile-butadiene rubber (acrylo nitrile butadiene (NBR), methyl methacrylate-butadiene rubber ( methyl methacrylate butadiene (MBR), polybutadiene rubber (polybutadiene, BR), or butyl rubber may be used.

It is preferable that the emulsion resin is in an emulsified state containing 20 to 60% of water by emulsion polymerization by adding an emulsifier to water.

Resin used in the emulsion resin is ethylene vinyl acetate (ethylene vinylacetate, EVA), polyvinyl chloride (polyvinylchloride), water-soluble acrylic resin, polyvinylacetate (PVAC), polybutadiene, polyvinylidene chloride, or polyurethane ( polyurethane, PU) and the like, and particularly, in the case of ethylene vinyl acetate, the cohesive force is strong, so that the strength of the adhesive composition can be maintained to a certain degree, which is more effective.

The rubber latex is preferably contained in 20 to 100 parts by weight of the subject. When the content is in the above range, the cohesive force is applied to the adhesive composition, thereby maintaining the strength of the adhesive composition in an appropriate range, thereby preventing warpage of floorboards that may occur during operation, thereby improving workability.

The metal adhesion enhancer of a) ii) used in the subject of the aqueous adhesive composition of the present invention serves to improve the adhesion and durability to the metal surface of household appliances and metal furniture.

The metal adhesion enhancer may be an acrylic resin containing a carboxyl group, polyvinyl acetate, modified ethylene vinyl acetate or polyvinyl butyral resin.

The metal adhesion enhancer is preferably included 1 to 50 parts by weight in the subject. When the content is in the above range, the adhesion strength of the metal and HPM, veneer, plywood and the like to be adhered to improve the durability and workability.

The aqueous OH group-containing aqueous solution or emulsion of a) iii) used in the subject of the aqueous adhesive composition of the present invention may be any compound containing ordinary OH groups used in the art, and in particular, starch, polyvinyl alcohol ( polyvinyl alcohol (PVA), carboxyl methyl cellulose (CMC), protein, or polyvinyl acetate (PVAc).

The OH group-containing polymer aqueous solution or emulsion is preferably contained in 1 to 50 parts by weight in the subject. When the content is in the above range, there is an effect of further improving the heat resistance, moisture resistance, and adhesion of the aqueous adhesive.

The inorganic filler of a) iii), which is used in the subject of the aqueous adhesive composition of the present invention, adjusts the viscosity of the adhesive to reduce shrinkage during curing to complement workability, reduce costs, and improve the heat resistance and durability of the adhesive. To act.

The inorganic filler may be used by changing the type and amount according to the material and the type and amount of the resin to be used, in particular, light coal, such as calcium carbonate (CaCO ₃ ), calcium sulfide, barium sulfide, back clay , Clays such as Dixclay, or sulfur clays, diatomaceous earths such as ash, or silica (SiO ₂ ), and the like, and preferably, light coals such as calcium carbonate (CaCO ₃ ), calcium sulfide, or barium sulfide Is to use

The inorganic filler is preferably included in 5 to 100 parts by weight on the subject. When the content is in the above range, it is possible to effectively control the viscosity of the adhesive to significantly reduce the shrinkage during curing, and the effect of significantly improving the heat resistance and moisture resistance of the adhesive.

The water of a) iii) used in the subject matter of the two-part aqueous adhesive composition of the present invention is preferably included in the amount of 1 to 50 parts by weight.

The water is used as a solvent in the two-component aqueous adhesive composition, and by using the water as a solvent to solve the problem of environmental damage caused by the use of the organic solvent, not only environmentally friendly, severe chemical smell during construction or after construction It is possible to improve the work efficiency by improving the work efficiency of the worker by suppressing the occurrence of, and when the tenants move into the constructed building, there is an advantage of living comfortably without feeling the unpleasant odor of the nose.

The subject matter of a) consisting of the above components are nonionic and anionic surfactants, non-silicone antifoaming agents, preservatives, drying retardants, ceramics, dispersants, stabilizers, etc. The additive may further include a leveling agent, a gas absorbent, a moisture absorbent, or a catalyst.

The surfactant may be an ethylene oxide nonionic surfactant, anionic surfactant, carboxylic acid salt, or the like, and the antifoaming agent may be a non-silicon such as a metal soap system.

The two-component aqueous adhesive composition of the present invention comprising the above components may further include a thermosetting resin as necessary.

The thermosetting resin may be used a conventional thermosetting resin used in the art, it is particularly preferred to use a melamine resin, phenol resin, epoxy resin or the like.

The thermosetting resin is preferably included 1 to 50 parts by weight based on 100 parts by weight of the main body. When the content is in the above range, it is possible to give a suitable adhesive strength and heat resistance to the metal surface and improve the workability, but when the content exceeds 10 parts by weight too much, there is a problem that the adhesive strength and heat resistance is lowered.

The main ingredient of a) including the above components is 45 to 63% by weight of solid content, and the viscosity is preferably 70 to 150 Pa · s (PS) as measured by a Brookfield viscometer at 25 ° C. When the viscosity is in the above range, the adhesion to the metal surface of home appliances and furniture is excellent, and workability can be improved, which is better.

The isocyanate compound of b) used in the curing agent of the aqueous adhesive composition of the present invention has excellent solubility in water, and the curing agent may be uniformly mixed with the main body to shorten the curing time by maintaining a suitable viscosity and hardness, and the main and curing agent Prolongs pot life during mixing, which significantly improves workability.

It is preferable that the said isocyanate compound contains 25 to 35% of NCO groups.

 The isocyanate compound is preferably a compound containing two or more isocyanate groups in one molecule, in particular, toluen-diisocyanate (TDI), hydrogenated TDI, trimethyl propane-TDI, triphenylmethane -Triisnylmethane-triisocyanate (TTI), diphenylmethane-4,4-diisocyanate (dipehenyl methane-4,4-diisocianate (MDI), hydrogenated MDI, or hexanemethylene-diisocyanate (HDI) It is preferable to use an isocyanate compound, and more preferably to use a isocyanate compound containing a blocking agent.

The curing agent containing such an isocyanate compound may further include a blocking agent.

The blocking agent may be a compound having an active hydrogen, such as alcohols (alcol), oximes (amines), amines (amine), amides (aminde), or lactam (lactam).

The blocking agent is preferably included in an amount of 1 to 30 parts by weight with respect to 100 parts by weight of the curing agent, when the content is in the above range has the effect of obtaining an adhesive composition of a suitable viscosity, pot life when mixing the main agent and the curing agent It can significantly improve workability by prolonging pot life.

The final performance varies depending on the a) main ingredient and b) the amount of the curing agent, but even if the amount of curing agent is small, the state adhesive strength is obtained, but the water resistance is insufficient, and when the amount of the curing agent is high, the viscosity increases in a short time and the pot life This shortens but improves its performance. In addition, since the water-based adhesive agent of the present invention is a crosslinking reaction type adhesive, the viscosity is gradually increased after the crosslinking agent is mixed and foaming occurs, and after a long time, the adhesive strength is also lowered. The thickening rate of the after-products is proportional to the amount of crosslinking agent, which requires special attention in summer use.

Therefore, it is preferable to mix the said main ingredient of a) and the hardening | curing agent of b) in the weight ratio of 10: 0.5-2.0.

The main agent and the curing agent are directly added and mixed with a curing agent, which is an isocyanate compound, in the aqueous polymer solution of the main body as shown in Scheme 1 below to form a macromolecule by branching linear molecules in the main body into a plurality of resorcinol resins which were not found in general aqueous adhesives. It will have a water resistance and heat resistance equivalent to.

Scheme 1

The water-based adhesive agent of the present invention can be used for bonding a metal surface, such as iron plate, aluminum plate, galvanized steel sheet and melamine impregnated plate (high pressure melamin sheet (HPM) or veneer), the aqueous adhesive 50 to 300 to the adhered surface After coating about g / ㎡, it can be produced immediately after the application after 50 to 50 minutes after pressing, and then cured for 30 to 60 minutes or more, in particular, it is preferable to assemble and adhere the adhered surface immediately after application of the aqueous adhesive, the curing It is preferable to carry out more than 24 hours.

The two-component aqueous adhesive composition for home appliances and metal furniture according to the present invention does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, fluorine-containing compounds, etc. It is easy for the worker to work without restraining the occurrence of chemical smell, and it can be used comfortably without feeling the discomfort like sticking the tip of the nose. In addition, it has excellent adhesion to the metal surface and durability, can significantly improve the heat resistance and moisture resistance, and has excellent advantages in the workability, such as spreader (spreader), pot life by adjusting the viscosity deformation and flow.

Hereinafter, preferred examples are provided to help understanding of the present invention, but the following examples are merely to illustrate the present invention, and the scope of the present invention is not limited to the following examples.

EXAMPLE

Example 1

Chloroprene rubber latex (C-74, Bayer) 80 parts by weight, carboxyl modified polyvinyl acetate 20 parts by weight, polyvinyl alcohol solution (PVA-P17, P05, Tong Yang Steel Chemical) 30 parts by weight, CaCO ₃ 30 parts by weight, 1 part by weight of an ethylene oxide-based nonionic surfactant (NP-1018, Southeast Synthetic), 1 part by weight of a metal soap-based antifoaming agent (NXZ, Sanofko Corp.), and 1 part by weight of a preservative, wherein the final solid content of the subject Water was mixed so as to be 56-61% by weight to prepare a subject having a viscosity of 70-90 Pa.s (measured at 25 ° C). Then, a curing agent containing an isocyanate compound containing 30 to 33% of NCO groups was prepared. The two-part aqueous adhesive composition was prepared by uniformly mixing the prepared main ingredient and the curing agent in a ratio of 10: 1.5.

Example 2

75 parts by weight of ethylene vinyl acetate emulsion (EVA-706, Air Product Korea), 20 parts by weight of carboxyl modified ethylene vinyl acetate (EVA-920, Air Product), carboxyl methyl cellulose (CMC) 20 parts by weight, CaCO ₃ 10 parts by weight, ethylene oxide-based nonionic surfactant (NP-1018, Southeast Synthetic) 1 part by weight, metal soap-based antifoaming agent (NXZ, Sannov Co.) 1 part by weight, and 1 part by weight of preservatives Then, water was mixed so that the final solid content of the main material was 56 to 61% by weight to prepare a main material having a viscosity of 70 to 90 Pa · s (measured at 25 ° C.). Then, a curing agent containing an isocyanate compound containing 30 to 33% of NCO groups was prepared. The two-part aqueous adhesive composition was prepared by uniformly mixing the prepared main ingredient and the curing agent in a ratio of 10: 1.5.

Example 3

75 parts by weight of acrylic resin emulsion (EMA-508, Ampol Korea), 20 parts by weight of carboxy-modified polyvinyl acetate, 5 parts by weight of polyvinyl alcohol solution (PVA-F17, P05, Dongyang Steel Chemical), 10 parts by weight of CaCO ₃ , 1 part by weight of epoxy resin (KH-700, Kukdo Chemical), 1 part by weight of ethylene oxide-based nonionic surfactant (NP-1018, Dongnam Synthetic), 1 part by weight of a metal soap-based antifoaming agent (NXZ, Sanofko Corp.), and 1 part by weight of a preservative was mixed and water was mixed therein to give a final solids content of 56-61% by weight to prepare a main body having a viscosity of 70-90 Pa · s (measured at 25 ° C.). Then, an isocyanate compound containing 30 to 33% of NCO groups was prepared by mixing with a blocking agent to prepare a curing agent. The two-part aqueous adhesive composition was prepared by uniformly mixing the prepared main ingredient and the curing agent in a ratio of 10: 1.5.

Examples 4-7

A two-component aqueous adhesive composition was prepared in the same manner as in Example 2, except that the ingredients of the subject matter were used in Example 2 in the following composition ratios. At this time, the unit of Table 1 is a weight part.

division Example 2 Example 3 Example 4 Example 5 Example 6 subject Ethylene Vinyl Acetate Emulsion 75 75 75 75 75 Modified polyvinylacetate 20 5 10 30 50 Polyvinyl alcohol 30 30 30 30 30 CaCO ₃ 10 10 10 10 10 Epoxy resin One One One One One

Comparative Example 1

An oily chloroprene-based adhesive 7254 (Ohpo Corporation) was used.

Comparative Example 2

100 (Okupo Co., Ltd.) which is an aqueous EVA adhesive was used.

Comparative Example 3

195W (Okupo Co., Ltd.) which is an aqueous EVA adhesive was used.

Comparative Example 4

FA-780C (Opoong Co., Ltd.), which is an aqueous acrylic adhesive, was used.

Comparative Example 5

1984 (Casconobel), an aqueous polymeric isocyanate adhesive, was used.

Comparative Example 6

SL-460 (National starch), an aqueous polymeric isocyanate adhesive, was used.

As a result of attaching the melamine impregnated plate or veneer to the aluminum plate using the adhesive compositions of Examples 1 to 7 and Comparative Examples 1 to 7, the aqueous adhesive of Examples 1 to 7 according to the present invention is a conventional oil-based adhesive It showed the adhesive strength equivalent to 1, and excellent durability, reducing the odor of the chemicals generated during the work hardly smells, it was confirmed that the heat resistance and moisture resistance also improved significantly. In addition, compared with the conventional aqueous adhesives Comparative Examples 2 to 6 it was confirmed that the adhesion to the metal surface is excellent, heat resistance and moisture resistance is also significantly improved.

In addition, by using the aqueous adhesive composition of Examples 1 to 2 and Comparative Examples 1 to 6, the odor, adhesion between the metal surface and veneer, heat resistance, moisture resistance, and workability were measured, and the results are shown in the following table. 4 is shown. At this time, 5 points for no smell at all, 3 points for slightly flying, and 1 point for severe flying were repeated 10 times, and the average value was described. In addition, the workability was repeated 10 times with 5 points of excellent, 3 points of normal and 1 point of bad, and the average value was described.

A) Adhesion-After curing the adhesive of Examples 1 or 2 and Comparative Examples 1 to 6 for 7 days at 20, 65% of conditions, the adhesion was measured and evaluated according to Table 3 below.

B) Heat resistance—The adhesives of Examples 1 or 2 and Comparative Examples 1 to 6 were cured for 7 days at 20 ° C. and 65% of conditions, and left to stand for 3 to 4 cycles at 30 ° C. and 80 ° C., and then heat resistance was measured. And evaluated according to Table 3 below.

C) Hot water resistance—The adhesives of Examples 1 or 2 and Comparative Examples 1 to 6 were cured for 7 days at 20 ° C. and 65% of conditions, immersed in boiling water for 1 hour, and then hot water resistance was measured and Evaluation was made according to Table 3.

D) moisture resistance—The adhesives of Examples 1 or 2 and Comparative Examples 1 to 6 were cured for 7 days at 20 ° C. and 65% of the conditions, and left for 100 hours under 99% humidity. Evaluation was made according to Table 3.

Evaluation standard 5 90-100% 4 60 to 90% 3 40-60% 2 10 to 40% One 0-10%

division Example Comparative example One 2 One 2 3 4 5 6 smell 5 5 One 3 3 3 5 5 Adhesion 4.9 5 4.8 3 4 0.1 3.5 3.5 Heat resistance 5 5 4.3 2.3 3 0.2 2.3 2.3 Hot water resistant 4.8 4.9 2.7 0.1 0.1 0.1 2.3 2.3 Moisture resistance 4.9 4.9 3 0.2 0.1 0.1 2.3 2.3 Workability 5 5 One 3 3 3 5 5

Through the above Table 4, the adhesive of Examples 1 to 2 according to the present invention, compared to the oil-based adhesive of Comparative Example 1 and the conventional aqueous EVA-based, acrylic, water-based polymer isocyanate adhesive of Comparative Examples 2 to 6 has a strong chemical smell In addition to significantly lowering, it was confirmed that the adhesion to the metal surface is significantly improved and excellent durability, heat resistance and moisture resistance is also excellent. In addition, it can be seen that the adhesive agent of Example 1 according to the present invention is also excellent in workability due to viscosity deformation and flow control as compared with the adhesives of Comparative Examples 1 to 7.

The two-component aqueous adhesive composition for home appliances and metal furniture according to the present invention does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, fluorine-containing compounds, etc. It is easy for the worker to work without restraining the occurrence of chemical smell, and it can be used comfortably without feeling the discomfort like poking the tip of the nose, which has a human-friendly effect. In addition, it has excellent adhesion to the metal surface and durability, can significantly improve the heat resistance and moisture resistance, and has excellent workability such as spreader (spreader), pot life by adjusting the viscosity deformation and flow.

Claims (10)

In the two-component aqueous adhesive composition for home appliances and furniture comprising a metal surface, a) i) 20 to 80 parts by weight of a rubber latex or emulsion resin;   Ii) 5 to 50 parts by weight of the metal adhesion enhancer;   V) 1 to 50 parts by weight of an aqueous OH group-containing polymer solution or emulsion;   Iii) 1 to 50 parts by weight of an inorganic filler; And   Iii) 1 to 50 parts by weight of water   Subject containing; And b) hardeners containing isocyanate compounds A two-component aqueous adhesive composition for household electrical appliances and metal furniture comprising a 10: 0.5 to 2.0 by weight. The method of claim 1, The home appliance wherein the rubber latex of a) iii) is selected from the group consisting of chloroprene rubber, styrene-butadiene rubber, and acrylonitrile-butadiene rubber, methyl methacrylate-butadiene rubber, polybutadiene rubber, and butyl rubber Two-component aqueous adhesive composition for products and metal furniture. The method of claim 1, The resin used in the emulsion resin of a) iii) is water-soluble acrylic resin, ethylene vinyl acetate (ethylene vinylacetate, EVA), polyvinyl chloride, polyvinylacetate (PVAC), polyylbutadiene, polyvinylidene, And polyurethane (polyurethane, PU). The two-component aqueous adhesive composition for household appliances and metal furniture selected from the group consisting of: The method of claim 1, Wherein the metal adhesion enhancer of a) ii) at least one member selected from the group consisting of a modified acrylic resin containing a carboxyl group, modified polyvinyl acetate, modified ethylene vinyl acetate, and polyvinyl butyral resin for household appliances and metal furniture Two-part aqueous adhesive composition. The method of claim 1, OH group-containing polymer aqueous solution or emulsion of a) iii) is at least one member selected from the group consisting of starch, polyvinyl alcohol, carboxymethyl cellulose, protein, and polyvinyl acetate 2 Liquid aqueous adhesive composition. The method of claim 1, The subject of a) is selected from the group consisting of nonionic and anionic surfactants, non-silicone antifoaming agents, preservatives, drying retardants, ceramics, dispersants, stabilizers, leveling agents, gas absorbers, moisture absorbers, and catalysts. Two-component aqueous adhesive composition for home appliances and metal furniture further comprising an additive. delete The method of claim 1, A two-component aqueous adhesive composition for household appliances and metal furniture having a viscosity of 70 to 90 Pa · s (PS, measured at 25 ° C.). The method of claim 1, The two-component aqueous adhesive composition for household appliances and metal furniture, wherein the isocyanate compound of b) contains 25 to 35% of NCO groups. The method of claim 1, Blocking of at least one selected from the group consisting of alcohols (alcol), oximes, amines (amines), amides (aminde), and lactams having the active hydrogen of the b) A two-component aqueous adhesive composition for household appliances and metal furniture further comprising 1 to 30 parts by weight based on 100 parts by weight of the curing agent.