JP2000342359A - Kitchetn furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the labor for wiping off the water by coating doors, front plates of drawers, and a surface of an end rail with a film composed of a graft polymer of a thermosetting polymerizable unsaturated ester and a silicone resin. SOLUTION: A coating film covering doors 3, front plates 4a of drawers 4, and a surface of an end rail 5 of a kitchen furniture for preventing the furniture from being stained by water, is prepared by graft polymerizing a thermosetting polymerizable unsaturated ester and a silicone resin. The thermosetting polymerization type unsaturated ester, 0.17-72 mol times to the thermosetting polymerizable unsaturated ester, of silicone resin, and 0.01-5 mol times to a functional group of the silicon resin, of polymerization starting agent are added to an organic solvent such as xylene, toluene, chloroform, N,N-dimethyl formamide, hexane, benzene, styrene and the like to be reacted under a reaction temperature of -30 through 190 deg.C and a pressure of 0.07 through 1.5 MPa. The graft polymer is prepared by the reaction for a predetermined time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to kitchen furniture such as a sink, a counter, a cooking stove, a system kitchen and the like which is installed in a kitchen and has a door, a drawer or a curtain plate.

[0002]

2. Description of the Related Art Recently, improvement and improvement of cleanability in a kitchen space have been reviewed in houses, and among them, there is a strong demand from manufacturers for improvement of cleanability of kitchen furniture itself installed in a kitchen. Have been. Therefore, in recent years, in order to improve the cleaning performance against oil stains, vinyl chloride plywood with a fluorine coating layer formed by fluorine treatment on a vinyl chloride resin sheet is used as a front plate for kitchen furniture doors, drawer front plates, curtain plates, etc. The products used are on the market.

[0003] Further, a furniture door is constituted by a surface base material having a fluorine coating layer provided on the front side of a paper base material and a core material laminated on the back surface of the surface base material so as to improve the cleaning property. (See, for example, JP-A-9-170381)

[0004] However, when a water splash occurs due to the use of a sink having a sink and the surfaces of the doors, drawer front plates and curtain plates mounted on the front side of the kitchen furniture get wet with water, the conventional technique is used. The antifouling coating formed by applying the antifouling coating material made of fluororesin to the base material as described in, has high water repellency, so that water droplets that come in contact with the surface of the door, drawer front plate or curtain plate etc. Although it becomes a polka dot, it strongly adheres to the surface of the antifouling coating surface due to the water droplet, and thus adheres to the surface without falling. And when water evaporates while adhering to the surface of the door or drawer front plate or curtain plate, salt or sugar of water-soluble dirt dissolved in water precipitates, causing deliquescence and other phenomena. It is very unsanitary to clean the wet parts, such as mold growth, so it is necessary for the user to wipe off the water adhering to the door, the front plate of the drawer or the curtain, etc. Had become.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the adhesion of aqueous dirt in such a state that the substance remaining after the evaporation of water is visually observed as a contaminant, and to prevent the door or drawer from being attached. Water droplets adhering to the front plate or the curtain plate fall naturally to make the kitchen furniture excellent in slipperiness and sanitary, thereby reducing the work of wiping water.

[0006]

The present invention relates to the following kitchen furniture. (1) All or any one of the surfaces of the door, the front plate of the drawer, and the curtain plate is covered with a coating made of a graft polymer of a thermosetting polymerizable unsaturated ester and a silicone resin. And kitchen furniture. (2) The kitchen furniture according to the above (1), wherein the silicone resin is represented by the following formula (1).

[0007]

Embedded image (Wherein, R is a methyl group or a phenyl group, Z is a hydroxyl group, an epoxy group, a carboxyl group, a methacryloxy group, an acryloxy group or a dimethylolalkyl group, and n is 6 to 300.
And k is an integer of 1 to 10, l is an integer of 0 to 1, and m is an integer of 0 to 6. (3) The thermosetting polymerizable unsaturated ester is an unsaturated polyester or a vinyl ester. The kitchen furniture according to the above (1) or (2).

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The coating used for the present invention, which is formed over the surfaces of the doors of kitchen furniture, the front plate of the drawer, and the surface of the curtain plate to prevent adhesion of water-based stains, is a thermosetting polymerizable unsaturated resin. It is obtained by graft polymerization of an ester and a silicone resin.

As the thermosetting polymerizable unsaturated ester used in the present invention, unsaturated polyester, vinyl ester,
Examples thereof include polyarylate, urethane acrylate, polyester acrylate, and polyether acrylate. Preferably, unsaturated polyester and vinyl ester are used. This unsaturated polyester is obtained by polycondensing a polyhydric alcohol with an unsaturated polybasic acid and a saturated basic acid. The vinyl ester is obtained by a reaction between glycidyl (meth) acrylate and a polyhydric phenol such as bisphenol A, and is obtained by a reaction between an epoxy resin and (meth) acrylic acid.

In these thermosetting polymerizable unsaturated esters, the number average molecular weight of the unsaturated polyester or vinyl ester in terms of polystyrene by GPC is 1,1,
500-100,000, preferably 1,500-5
000, more preferably 1,500 to 5,000. If the number average molecular weight is less than 1,500, the durability and antifouling properties of the antifouling coating may be reduced. If the number average molecular weight exceeds 100,000, the viscosity becomes too high, and the handleability becomes poor. become worse.

As the unsaturated polyester and vinyl ester, those having a hydroxyl value of 10 to 400 mgKOH / g, preferably 14 to 250 mgKOH / g are used. If the hydroxyl value is less than 10 mgKOH / g, the degree of crosslinking of the antifouling coating may be reduced and curing may be insufficient, and if it exceeds 250 mgKOH / g, properties such as water resistance of the antifouling coating may be deteriorated. There is a possibility that it will decrease.

The above-mentioned thermosetting polymerizable unsaturated ester is graft-polymerized with a silicone resin represented by the following formula (1).

[0013]

Embedded image (Wherein, R is a methyl group or a phenyl group, Z is a hydroxyl group, an epoxy group, a carboxyl group, a methacryloxy group, an acryloxy group or a dimethylolalkyl group, and n is 6 to 300.
, K is an integer of 1 to 10, l is an integer of 0 to 1, and m is an integer of 0 to 6)

The above dimethylolalkyl group is
-C (CH ₂ OH) ₂ -R (R represents an alkyl group such as a methyl group or an ethyl group) is shown.

The thermosetting polymerizable unsaturated ester and the silicone resin represented by the above formula (1)
The graft polymerization is performed as follows. In an organic solvent such as xylene, toluene, chloroform, N, N-dimethylformamide, hexane, benzene or styrene, a thermosetting polymerizable unsaturated ester, 0.17 to A 72-fold mole of the silicone resin represented by the formula (1), and a polymerization initiator of 0.01 to 5 moles per mole of the functional group of the silicone resin represented by the formula (1) are added, and the reaction temperature is -30 to 190 ° C. The reaction is carried out at a pressure of 0.07 to 1.5 MPa.
Then, a graft polymer is obtained by performing the reaction for a predetermined time.

The polymerization initiator includes protonic acids such as sulfuric acid, phosphoric acid, acetic acid, methanesulfonic acid and trifluoromethanesulfonic acid, Lewis acids such as tin tetrachloride, titanium tetrachloride and aluminum trichloride, and sodium hydroxide. , Bases such as trimethylamine, or tertiary (abbreviated as t)-
Butylperoxybenzoate, benzoyl peroxide, t-butylperoxyisopropyl carbonate, t-hexylperoxyisopropyl carbonate, t-hexylperoxybenzoate, bis (4-
Organic peroxides such as t-butylcyclohexyl) peroxydicarbonate and t-hexylperoxydiethylhexanoate can be mentioned, but Lewis acids are preferably used.

When the graft polymer obtained as described above, that is, the resin material for preventing the adhesion of water-based stains, is applied to a base material such as metal, synthetic resin, wood, ceramics or glass, the organic solvent is evaporated and scattered. A fouling film can be formed. In addition, when it is difficult to form an antifouling film, an antifouling film can be formed by further adding a cross-linking agent to a resin material for preventing adhesion of water-based stain and curing the resin material.

The crosslinking agent (curing agent) for the graft polymer includes diisocyanates such as hexamethylene diisocyanate, toluylene diisocyanate and meta-xylene diisocyanate, t-butyl peroxybenzoate, benzoyl peroxide, t-butyl perisocyanate. Oxyisopropyl carbonate, t-hexylperoxyisopropyl carbonate, t-hexylperoxybenzoate, bis (4-t-butylcyclohexyl) peroxydicarbonate, t-hexylperoxyidethyldihexanoate, cyclohexanone peroxide or methyl ethyl ketone peroxide An organic peroxide such as an oxide is added.

Accordingly, the antifouling film is formed on the substrate by adding a diisocyanate group or a graft polymer having a hydroxyl value of not more than 1.05 times the hydroxyl value of the graft polymer to the resin material for preventing adhesion of aqueous stain. It is performed by adding an organic peroxide to the double bond of the polymer, mixing uniformly, and applying the mixture. After application to the substrate, the coating may be cured at room temperature, or may be heated to accelerate the curing. Since the resin material that prevents the adhesion of water-based dirt due to this configuration has excellent water-sliding properties, it should be coated on the outer surface of parts that are easily wetted by water, such as doors for kitchen sinks, front plates of drawers, and curtain plates. Therefore, for example, even if the door, drawer front plate and the part of the curtain plate get wet with water due to the use of a sink equipped with a sink and the like, the water slides down and the floor part where the kitchen furniture is installed It is possible to keep kitchen furniture sanitary by wiping it a little.

Note that members such as doors, drawer front plates, and curtain plates of kitchen furniture whose surfaces are covered with the antifouling coating include:
It is composed of materials such as wood and synthetic resin. Further, the antifouling film is preferably formed so as to cover all the surfaces of the kitchen furniture provided with all of the door, the front plate of the drawer, and the curtain plate. In the case of furniture, at least the surface of the door should be covered with an antifouling film.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sink as kitchen furniture according to the present invention will be described below with reference to FIG. In FIG. 1, a sink 1 is provided with a door 3 which can be opened and closed by covering a front opening of a cabinet 2 having an open front side, and a drawer 4 which can be pulled out in a plurality of upper and lower stages. Each of the drawers 4 is provided with a curtain plate 4a on the front side of a drawer box (not shown) having an open top surface located in the cabinet 2. In addition, a worktop 6 made of a stainless steel plate or the like having a sink 7 is placed on the upper part of the cabinet 2 to constitute the sink 1.

The door 3 of the sink 1 and the front plate 4a of the drawer 4
A resin material for covering the surface of the curtain plate 5 and preventing adhesion of water-based stains was prepared by charging 100 g of chloroform and vinyl ester (PS615) in a 500 mL glass eggplant-shaped flask.
0; number average molecular weight 1,650, hydroxyl value 131 mg KO
H / g, manufactured by Hitachi Chemical Co., Ltd., 20 g, silicone resin represented by the above formula (1) (Silaprene FM-0521, manufactured by Chisso Corporation, trade name) 14
g and mix. In addition, Silaplane FM-05
21, R is a methyl group, Z is an epoxy group, and n is about 6 on average.
5, k is 3, 1 is 1 and m is 1. Next, 1.18 g of titanium tetrachloride, which is a Lewis acid, was dropped into the eggplant-shaped flask under a nitrogen gas atmosphere.
The reaction was performed for 12 hours at MPa. As a result, a graft polymer of the vinyl ester and the silicone resin represented by the formula (1) was obtained. In this example, 10 parts by mass of the graft polymer of the vinyl ester obtained above and the silicone resin represented by the formula (1), and hexamethylene diisocyanate (Coronate HX, manufactured by Nippon Polyurethane Industry Co., Ltd., trade name) as a crosslinking agent After uniformly mixing 1 part by mass, and using a spray gun to apply to the surface of the door 3 of the sink 1, the front plate 4 a of the drawer 4 and the surface of the curtain plate 5 shown in FIG. 1 respectively,
The coating was heated and cured at 140 ° C. for 1 hour to form an antifouling coating having a thickness of 10 μm.

[0023]

As described above, according to the kitchen furniture of the present invention, the door, the front plate of the drawer and / or the surface of one of the curtain plates are made of a thermosetting polymerizable unsaturated ester and a silicone resin. It is covered with a water-slippery coating composed of a graft polymer, and water droplets attached to the door, the front plate and the drawer of the drawer, or water droplets attached to any of these naturally fall due to water splashing. Adhesion is prevented and sanitary, and the work of wiping off water droplets can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a sink as kitchen furniture according to the present invention.

[Explanation of symbols]

1. Sink 2. Cabinet 3. Door 4. Drawer 4a. Front plate 5. Curtain plate 6. Worktop 7. sink

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) // C09D 167/07 C09D 167/07 F term (Reference) 3B060 CA01 CA08 4J035 BA02 CA01N CA07N CA071 CA082 CA102 CA132 GA03 GA10 LB01 4J038 CP121 DD181 DL031 GA01 GA03 GA06 GA07 PC02

Claims (3)

[Claims] 1. The door, the front plate of the drawer, and the surface of all or any one of the curtain plates are covered with a coating made of a graft polymer of a thermosetting polymerizable unsaturated ester and a silicone resin. Kitchen furniture. 2. The kitchen furniture according to claim 1, wherein the silicone resin is represented by the following formula (1). Embedded image (Wherein, R is a methyl group or a phenyl group, Z is a hydroxyl group, an epoxy group, a carboxyl group, a methacryloxy group, an acryloxy group or a dimethylolalkyl group, and n is 6 to 300.
, K is an integer of 1 to 10, l is an integer of 0 to 1, and m is an integer of 0 to 6) 3. The kitchen furniture according to claim 1, wherein the thermosetting polymerizable unsaturated ester is an unsaturated polyester or a vinyl ester.