JP2001277397A - Decorative heat insulation sheet and decorative material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shut off a heat conduction as much as possible without shutting off between a front surface and a rear surface of a heat conductive building member made of an aluminum or the like by a plastic or the like or without suppressing the heat conduction using the building member double or triple and hence without reducing a strength of the member or without bringing about a disadvantage of increasing a thickness of a raw material. SOLUTION: A decorative sheet 3 is laminated on a synthetic resin foamed sheet 2 via an adhesive layer 4a or the like. In this case, a density of the foamed sheet is 0.01 to 0.1 g/cm3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to architectural members and the like to improve the heat insulating properties of the architectural members by imparting heat insulating properties to the surfaces thereof. The present invention relates to a decorative heat insulating sheet capable of adjusting the appearance of a member, and a decorative body obtained by laminating such a decorative heat insulating sheet on a building member.

[0002]

2. Description of the Related Art The purpose of a building is to protect its occupants by shielding it from the outside environment such as wind, rain, and cold.
Those that block the wind and provide some heat insulation have been used. However, recently, not only air conditioning in summer and heating in winter, but also air conditioners are frequently operated around the clock, and energy consumption is increasing, so further improvement in energy efficiency is required. ing.

[0003] Naturally, a heat insulating material has been filled between the outer wall and the inner wall of the house, the space above the ceiling, and the like, and measures have been taken to prevent the temperature inside the room from excessively rising and falling. However, no aggressive insulation measures have been taken for doors, glass doors, windows, and the like, which are opening members. This is because the door is rugged, and the glass doors, windows, etc. are valued for transparency. In addition, most regions in Japan are located in a warm climate zone, so that sufficient sunlight can be obtained throughout the year, and a method that favors ventilation in the summer is traditionally valued. It was common to increase the proportion of openings compared to major European and American countries with lower temperatures.

[0004] The glass often used for the opening member is a relatively poor conductor of heat, but a part of the window frame and the like that surrounds the glass is made of iron or PVC. In most cases, a metal that is a good conductor of heat (= thermal conductivity), such as aluminum, is used. Since this aluminum building member is a good conductor of heat, it transmits the high temperature of the outside air in the summer and the low temperature of the outdoor in the winter, and impairs the effect of cooling and heating, especially in the winter. Moisture in the air may be condensed on the surface of the aluminum building member or, in extreme cases, adhere as water droplets and eventually run down.

[0005] There is a method in which the space between the front and back of a building member is blocked by plastic or the like, or a double or triple sash is used to suppress heat conduction. According to the former method,
According to the latter method, the strength of building members is reduced, and the latter method has the disadvantage of increasing the thickness occupied by a thermally conductive metal such as aluminum, and is expensive due to using the material twice or three times. A disadvantage is inevitable.

[0006]

Accordingly, in the present invention, the space between the front and back of a heat conductive building member made of aluminum or the like is blocked by a plastic or the like, or the building member is used in a double or triple manner to provide heat. An object of the present invention is to block the conduction of heat as much as possible without suppressing the conduction of heat, and therefore, without reducing the strength of the building member or increasing the thickness of the material.

[0007]

In the present invention, various heat-insulating materials have been studied. As a result, it is preferable that the foamed sheet is a closed-cell foam. By specifying the density of the foamed sheet, good heat-insulating properties can be exhibited. It turned out and led to the present invention.

[0008] The first invention is a one-sided synthetic resin foam sheet.
In addition, a decorative sheet based on a synthetic resin sheet is laminated
And the density of the foamed sheet is 0.02 to 0.1 g /
cm ^ThreeA decorative heat-insulating sheet, characterized in that:
Things. The second invention is the first invention in which
The foam of the synthetic resin foam sheet has a diameter of 1000 μm.
The following closed cells are provided,
The present invention relates to a decorative heat insulating sheet. The third invention is
In the first or second invention, the synthetic resin foam sheet
The thickness of the sheet is 0.5 mm to 3.0 mm.
And a decorative heat insulating sheet. Fourth invention
Is the synthetic resin according to any one of the first to third inventions,
Flexible foam with foam sheet manufactured using electron beam crosslinking method
A decorative heat-insulating sheet characterized by being a sheet
Things. The fifth invention is directed to any one of the first to third aspects.
In the above, the synthetic resin foam sheet uses a chemical crosslinking method.
Characterized in that it is a soft foam sheet manufactured by
The present invention relates to a decorative heat insulating sheet. The sixth invention is
In any one of the first to third inventions, the synthetic resin foam
The sheet is a non-crosslinked soft foam sheet.
And a decorative heat insulating sheet. Seventh invention
Is the synthetic resin according to any one of the first to sixth inventions,
The foam sheet and the decorative sheet are arranged via an adhesive layer.
A decorative heat insulating sheet characterized by being laminated.
Is what you do. The eighth invention provides any one of the first to seventh aspects.
In the invention, the decorative sheet of the synthetic resin foam sheet is
On the side opposite to the side where it is laminated, the adhesive layer
A decorative heat insulating sheet characterized by being laminated.
Is what you do. A ninth invention is a first or second invention.
In, the resin component constituting the synthetic resin foam layer,
Cosmetic heat insulation, characterized by being a polyolefin resin
It is about a sheet. The tenth invention is directed to the first and second aspects.
In the second or ninth aspect, the decorative sheet is configured.
The characteristic resin component is a polyolefin resin
And a decorative heat insulating sheet. Eleventh
The invention is directed to any one of the first, second, ninth, and tenth aspects.
, At least a top sheet of the decorative sheet
Is made of acrylic resin or fluorine resin
A makeup comprising at least one layer of a sheet
The present invention relates to a heat insulating sheet. The twelfth invention is directed to
In the first or second aspect, the synthetic resin foam sheet
And the resin constituting the base material of the decorative sheet is charcoal.
Consists of elements selected from nitrogen, hydrogen, oxygen, and nitrogen
Cosmetic insulation characterized by being a resin having a basic skeleton
It is related to a functional sheet. The thirteenth invention is directed to the first
Or the synthetic resin foam sheet according to the second aspect of the invention.
And all of the decorative sheets are heat resistant at a temperature of 80 ° C or higher.
Heat insulation properties characterized by having
It is about a sheet. The fourteenth invention is directed to the first to
13. The cosmetic heat-insulating sheet according to any one of the thirteenth invention,
That they are stacked on a board or panel made of material
The present invention relates to a characteristic makeup body. 15th invention
Is the decorative heat insulating sheet of any one of the first to thirteenth inventions
Is laminated on an extruded material made of heat conductive material
A cosmetic body characterized in that [Detailed description of the invention]

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, with reference to the drawings, a decorative heat insulating sheet of the present invention and a cosmetic body using the decorative heat insulating sheet will be described. As shown in FIG. 1A, a decorative heat insulating sheet 1 of the present invention is basically a decorative sheet 3 having a synthetic resin sheet as a base material laminated on a synthetic resin foam sheet 2. is there. Alternatively, as shown in FIG. 1 (b), the decorative heat insulating sheet 1 of the present invention has a decorative sheet 3 having a synthetic resin sheet as a base material laminated on a synthetic resin foam sheet 2 via an adhesive layer 4a. May be done.

The synthetic resin constituting the synthetic resin foam sheet 2 includes polyethylene resin, polypropylene resin, polymethylpentene resin, ethylene-propylene copolymer resin, ethylene-propylene-butene copolymer resin, polyvinyl chloride resin, and polyvinyl chloride. Vinylidene resin, polyvinyl alcohol resin, vinyl chloride-vinyl acetate copolymer resin, ethylene-vinyl acetate copolymer resin, ethylene-vinyl alcohol copolymer resin, polyethylene terephthalate resin,
Polybutylene terephthalate resin, polyethylene naphthalate-isophthalate copolymer resin, phenol resin,
Polymethyl methacrylate resin, polyethyl methacrylate resin, polybutyl acrylate resin, polyamide resin represented by nylon 6 or nylon 66, polyurethane resin, polyisocyanurate resin, cellulose triacetate resin, cellophane, polystyrene resin, polycarbonate Resin, polyarylate resin, polyimide resin, or the like can be used.

Among these resins, those containing halogen such as chlorine are not preferable in consideration of disposal by incineration or the like.
Preferred resins from the viewpoint of disposal are those whose skeleton is composed of carbon, hydrogen, oxygen, and nitrogen.
Those consisting of carbon, hydrogen and oxygen are preferred.

[0012] Other than disposal, among the above, polyethylene resin, polypropylene resin, phenol resin,
Polystyrene resin, polyethylene terephthalate resin,
A polyvinyl chloride resin, a polyurethane resin, or a polyisocyanurate resin is more suitable, and in particular, a polyolefin resin such as a polyethylene resin or a polypropylene resin is more preferable, because harmful substances are less likely to be generated at the time of disposal.

As the state of foaming of the synthetic resin foam sheet 2, two types of open cells and closed cells are known. In principle, any of them can be used. There are differences. The open-cell synthetic resin foam sheet has a series of air bubbles, which allows air to move between the air bubbles, increasing the effect of convection,
Alternatively, since internal dew condensation occurs and the heat insulating performance is reduced, depending on the use environment, as described later, another means for preventing moisture from entering the bubbles is often required.
Even if such a measure is taken, there is a possibility that moisture may enter the air bubbles if the measure is damaged. In the closed cell synthetic resin foam sheet, since each of the cells is sealed, the influence of convection is small, and the entry of moisture into the cells can be prevented,
If used carefully, it can be used alone as a practical heat insulating sheet. Therefore, when applied to a building member or the like, as a synthetic resin foam sheet, a closed cell synthetic resin foam sheet is more preferable than an open cell synthetic resin foam sheet.

The synthetic resin foam sheet 2 includes a hard sheet and a soft sheet. The resin constituting the synthetic resin foam sheet 2 is a thermosetting resin, and among the foams having closed cells, the foam sheet made of an epoxy resin, a urea resin, or a phenol resin is hard. A synthetic resin foam sheet made of a cellulose acetate resin is hard.

[0015] In addition, as a material made of a resin capable of producing both hard and soft foamed sheets, polyethylene resin, polypropylene resin, polystyrene resin, polystyrene resin or the like may be used as the material made hard by adjusting the expansion ratio or the hardness of the resin. There are synthetic resin foam sheets made of vinyl chloride resin, polyvinyl alcohol resin, polyurethane resin, polyester resin (for example, polyethylene terephthalate resin), polyisocyanurate or silicon resin. However,
Among these resins, in the case of a synthetic resin foam sheet made of a polystyrene resin, semi-rigid ones can be manufactured in addition to hard ones.

Among these foamed sheets, soft ones include (a) ones manufactured by using an electron beam crosslinking method,
(B) those produced by the chemical crosslinking method, and (c)
Non-crosslinked ones are also available. Of these, (a)
The synthetic resin and a foaming agent such as azodicarbonamide are melted and mixed, extruded into a sheet, the extruded sheet is irradiated with an electron beam, crosslinked, and then heated and foamed. In the case of (a), the above synthetic resin and a foaming agent such as azodicarbonamide, a chemical crosslinking agent such as dicumyl peroxide are mixed and foamed while being extruded, or after extruding a sheet,
It is manufactured by heating and foaming. Further, (c) is manufactured by melting, mixing, extruding, and foaming the above synthetic resin and a foaming agent.

A comparison of the three types of foam sheets (a) to (c) has characteristics. In the case of using (a) the electron beam cross-linking method, the closed cell diameter is fine and uniform, so that the feel when touched by hand is hard. Also, the surface roughness is small and the foam sheet surface is smooth. (B) Those manufactured by the chemical crosslinking method are (a)
Compared to those manufactured using the electron beam cross-linking method, the bubble diameter is larger and the sheet surface is slightly rough. The non-crosslinked product (c) has a large cell diameter and a considerably rough sheet surface. However, since the sheet is not crosslinked, there is an advantage that the sheet is soft and suitable for recycling.

A hard material is generally thick and is difficult to apply to the present invention as it is. However, foaming in a mold having a predetermined gap, or cutting or slicing a thick foam sheet is required. Thus, a thin sheet having a predetermined thickness of about 2 mm or less can be obtained.

When comparing the soft type and the hard type,
Generally speaking, a rigid foam sheet has better heat insulation performance. In particular, the rigid foamed sheet of polyurethane resin is excellent in heat insulation performance since closed cells are filled with fluorocarbon gas or the like having a low thermal conductivity. In addition, since the soft foam sheet is made of a soft material, it is excellent in moldability and followability to the shape to be stuck, has high applicability, and has a heat insulation performance close to that of the hard foam sheet. .

As a preferred synthetic resin foam sheet used in the present invention, considering the mechanism of heat conduction,
It is preferable to minimize each of (1) heat conduction of the solid portion and the gas portion constituting the synthetic resin foam sheet, (2) convection inside the bubbles, and (3) radiation. Among them, the portion due to the radiation of (3) is not so large, and it is a good measure to suppress the heat conduction by the former (1) and (2).

Regarding the thermal conductivity of (1), it is important not only to select and use a synthetic resin having a low thermal conductivity value, but also to lower the density. Among the preferred synthetic resins, among the polyolefin-based resins more preferable from the viewpoint of disposal, the thermal conductivity of the polypropylene resin is 0.24 W / mK, and the thermal conductivity of the polyethylene resin is 0.36 W / mK. For this reason, it is particularly preferable to use a polypropylene resin film.

Since the thermal conductivity of the synthetic resin foam sheet naturally depends on the density, it is better to reduce the density. However, since the extremely low density sheet has poor strength, the preferable density range is as follows. 0.02 g / cm ^{3 to} 0.1 g /
cm ³ . If the value is less than the lower limit, the bubbles are continuous with each other, and the radiant heat increases. On the other hand, when the ratio exceeds the upper limit, the heat insulating property becomes poor, which is not practical.

Regarding the convection inside the bubble (2), the diameter of the bubble is preferably made as small as possible, and the diameter of the bubble is preferably 10 μm to 1000 μm, more preferably 50 μm to 500 μm. If the diameter of the bubble is too large, gas molecules collide with each other and heat conduction occurs, which is not preferable. When the diameter of the bubbles is less than 50 μm, the production stability is slightly poor.

The thickness of the synthetic resin foam sheet 2 is required to be a certain thickness or more from the viewpoint of heat insulation, and the thicker the better, the better. It is also possible to apply to the body, it is difficult to apply an excessively thick one to the adherend whose dimensions are determined by customs and standards.For example, in the case of a sliding door, two doors are in the groove of the threshold Or when traveling on rails, the distance between the two doors is very narrow,
More preferably, it is about 3.0 mm.

However, the thickness of the synthetic resin foam sheet 2 is
Is there not much unevenness on the surface of the adherend, or when applying the decorative heat insulating sheet of the present invention to the outgoing corner or the inward corner, the bent portion of the decorative heat insulating sheet may be rounded, Alternatively, if there is no restriction on the thickness at the portion where the decorative heat insulating sheet is applied, the upper limit is 5.0.
It can be used up to about 0.5 mm, and if heat conduction is somewhat allowed, it can be used up to about 0.5 mm as a lower limit.

The synthetic resin foam sheet 2 having the above-mentioned density and thickness.
Is preferably about 0.01 to 0.06 W / mK, more preferably about 0.03 to 0.05 W / mK.

The synthetic resin foam sheet 2 described above
May be laminated on the decorative sheet 3 by itself as it is, or may be laminated on the decorative sheet 3 and coated with a gas barrier film which is hardly permeable to gas.

Since the synthetic resin foam sheet 2 is to be laminated on the surface of a building member, it is desirable that the synthetic resin foam sheet 2 has been subjected to makeup (or decoration). There are various types of makeup means, and the synthetic resin foam sheet 2 can be directly selected from any of coloring, printing, embossing, or wiping painting makeup means and synthesized by combining one or more kinds. It may be applied to a resin foam sheet.

However, the synthetic resin foam sheet 2 is
Some of the surfaces are not smooth, and some of them are crushed by applying pressure when applying cosmetic means. Therefore, a decorative sheet prepared separately from the synthetic resin foam sheet 2 is laminated on the synthetic resin foam sheet 2 to provide a decorative insulation property. More preferably, the sheet 1 is used.

FIG. 2 is a sectional view showing some embodiments of the decorative sheet 3. The decorative sheet 3 is, for example, shown in FIG.
As shown in (a), a pattern layer 7 and a coloring layer 8 are sequentially laminated on the lower surface of a transparent base material 60 made of synthetic resin, and a transparent resin protective layer 9 is laminated on the upper surface. This is a so-called “back print”.

Alternatively, as shown in FIG. 2 (b), the decorative sheet 3 may be a sheet in which a pattern layer 7 and a transparent resin protective layer 9 are laminated on the upper surface of a colored base 6 made of synthetic resin. Good. To put it bluntly, it is "table printing."

Further, the decorative sheet 3 is shown in FIG.
As shown in (1), a pattern layer 7, a transparent substrate 6O made of a synthetic resin, and a transparent resin protective layer 9 may be sequentially laminated on the upper surface of a colored substrate 6 made of a synthetic resin. It is called a "doubling product" because it uses two layers of base material and is laminated. 2C shows a state in which a concave portion 10 is formed on the transparent resin protective layer 9, and although not shown, the concave portion 10 is filled with a coloring material, so-called wiping painting is performed. It may be.

The above three modes of the decorative sheet 3 are typical constitutions of the decorative sheet conventionally using a vinyl chloride resin sheet or the like as a base material. As long as the decorative sheet 3 is provided with at least one kind or two or more kinds of coloring materials in the concave portions, the decorative sheet 3 other than the above can be used as the decorative sheet 3 in the present invention. Further, as the decorative sheet 3, the base material may be one layer, two layers, or more.

As the base material for the decorative sheet 3, paper or nonwoven fabric can be used. However, considering the compatibility with the synthetic resin foam sheet 2, bending strength, durability, water resistance, and the like, those made of synthetic resin are preferable. , Decorative sheet 3
As the resin component constituting the base material described above, the resins listed above as the resin constituting the synthetic resin foam sheet 2 can be used.

Further, the resins mentioned as being more suitable as the resins constituting the synthetic resin foam sheet, and poly (methyl) methacrylate, ethyl poly (meth) acrylate, butyl poly (meth) acrylate, ( Ethyl (meth) acrylate-butyl (meth) acrylate copolymer, methyl (meth) acrylate-styrene copolymer, and methyl (meth) acrylate-butyl (meth) acrylate-
An acrylic resin such as (meth) acrylic acid-2-hydroxyethyl copolymer is more suitable as a base material of the decorative sheet 3. In addition, "(meth) acryl" is used in the meaning of acryl or methacryl. Among these resins, in consideration of disposal, those containing halogen such as chlorine are not preferred, and preferred resins from the viewpoint of disposal are those whose skeleton is made of carbon, hydrogen, oxygen, and nitrogen. Those comprising hydrogen and oxygen are preferred.

In particular, a polyethylene resin or a polyolefin resin such as a polypropylene resin is more preferable because harmful substances are less likely to be generated at the time of disposal, and the same applies to the base material of the decorative sheet 3.

The coloring of the coloring base material 6U and the coloring layer 8 in FIG. 2 constitute the background of the pattern layer 7.
The colored base material 6U is obtained by forming a synthetic resin composition obtained by kneading a coloring agent such as a dye or a pigment in addition to a synthetic resin or the like into a sheet by an appropriate means. On the surface on which the 6O pattern layer 7 is formed, paint or print using an ink composition or a paint composition prepared by kneading a colorant such as a dye or a pigment with a binder resin, a solvent and the like. By doing so, it can be formed.

The formation of the pattern layer 7 is performed by printing. At the time of printing, only the pattern layer 7 may be printed, but the pattern layer 7 may be printed after forming a uniform colored layer in order to adjust the base color. As the printing ink composition, an ink composition or a coating composition prepared by kneading a colorant such as a dye or a pigment with a binder resin, a solvent, or the like is used. In addition, as a printing method,
Ink jet and electrophotographic techniques can also be used.

The embossing (= embossing) is usually formed by using a mold roll or by heating and pressing using a flat plate-shaped mold. The embossing can be performed on either a single-layer substrate as shown in FIG. 2 (a) or FIG. 2 (b) or a two-layer substrate as shown in FIG. 2 (c), In some cases, irregularities are not necessarily formed on the surface but formed inside. There are various embossed patterns, such as wood grain, stone grain, cloth grain, and others.

After embossing, it may be left as it is,
Wiping painting can be performed by filling the ink or paint colorant into the recesses formed by embossing. The wiping coating can be easily performed by applying a colorant to the concave portion 10 and scraping it off with a squeegee or the like, and has an effect similar to printing, but the transfer amount of the colorant is smaller than that at the time of printing. More depth gives more depth. More coloring,
Printing, embossing, wiping painting, or the like is performed in any combination to give the decorative sheet 3 an appearance design in addition to the feeling of the material.

The transparent resin protective layer 9 may be composed of a coating film of a synthetic resin paint, or may be composed of a laminate of synthetic resin films in some cases. The transparent resin protective layer 9 may be covered with a film of a polymethacrylic acid ester resin (= acrylic resin) or a film of a fluororesin, which can improve the weather resistance, or can be coated with a fluororesin. To improve the antifouling property. The acrylic resin film and the fluorine-based resin film are shown in FIG.
(A) or as a transparent substrate 60 in FIG. 2 (c).

As a coating film of the transparent resin protective layer 9, a coating film using a thermoplastic resin may be used. However, a coating film obtained by curing a thermosetting resin such as a polyurethane resin is excellent in terms of durability. When composed of a coating obtained by applying a radiation-curable resin composition prepared using a radiation-curable polymer or a prepolymer, and crosslinking and curing by irradiation with ionizing radiation, the protective effect of the lower layer is further improved. improves.

In particular, when the decorative heat insulating sheet 1 of the present invention is used outdoors, the temperature of the decorative heat insulating sheet 1 itself may rise considerably. When sunlight is applied, the temperature of the decorative heat insulating sheet 1 rises considerably. For this reason, it is empirically required that the decorative heat insulating sheet 1 withstands a temperature of 80 ° C. and a relative humidity of 70%. Among the polyolefin resins, the polyethylene resin has a reduced strength in an environment of 80 ° C., but has no problem because the polypropylene resin resin has a heat resistance temperature of 140 ° C. In addition. Heat resistant grade of polyethylene resin is 110
Although the heat resistance is clear at ℃, the heat insulation performance is low, but since the heat insulation performance is low, it is preferable to use a polypropylene resin as a versatile resin that withstands a temperature of 80 ° C. and a relative humidity of 70%.

It is preferable that the synthetic resin foam sheet 2 and the decorative sheet 3 are laminated via an adhesive layer 4. In the case where the adhesive layer 4 is not interposed, heat fusion is used. Examples of the adhesive constituting the adhesive layer 4 include polyvinyl acetate resin,
Polyvinyl alcohol, polyvinyl acetal (polyvinyl formal, polyvinyl butyral, etc.), cyanoacrylate, polyvinyl alkyl ether, polyvinyl chloride, polyamide, polymethyl methacrylate, nitrocellulose, cellulose acetate, thermoplastic epoxy, polystyrene, ethylene-vinyl acetate copolymer, Or a thermoplastic adhesive such as ethylene-ethyl acrylate copolymer, urea resin, melamine resin, phenolic resin, resorcinol resin, furan resin, epoxy resin, unsaturated polyester resin, polyurethane resin, polyimide, polyamideimide, polybenzimidazole, or Thermosetting adhesives such as polybenzothiazole, natural rubber, recycled rubber, styrene-butadiene rubber, acrylonitrile-
Butadiene rubber, chloroprene rubber, butyl rubber, polysulfide rubber, silicone rubber, polyurethane rubber,
Stereo rubber (synthetic natural rubber), ethylene propylene rubber, or block copolymer rubber (SBS, SI
(S, SEBS, etc.) Select and use from zero rubber adhesives such as rubber (elastomer).

The decorative heat insulating sheet 1 of the present invention can be used as a decorative body by sticking it to various building members.
FIG. 3 shows an example in which decorative heat-insulating sheets 1 and 1 ′ are laminated on both sides of a heat-conductive panel 13 -like building member in which plate-like bodies 12 and 12 ′ are laminated on the front and back of a frame 11 to provide heat insulation. The lamination may be performed with an adhesive or an adhesive, or may be performed by heat sealing, or by using an adhesive tape, a nail, a wire, or the like. In FIG. 3, the decorative heat insulating sheets 1 and 1 ′ are laminated on both sides of the panel 13, but may be laminated on only one side. For this reason, on the back of the decorative heat insulating sheet 1,
An adhesive layer 4b as indicated by 4b in FIG. 2 is preferably applied in advance, and the same applies to another type of building member described with reference to FIG. The structure as shown in FIG. 3 can be used for a door, a wall surface, a ceiling surface, a floor surface, or the like, or for a cabinet or the like that requires heat insulation, and can perform heat insulation of a certain large area.

FIG. 4 shows an example in which the decorative heat insulating sheet 1 of the present invention is laminated on an object having a long length. One side of a hollow prism made of aluminum or the like extends along the length direction near the center. This is an example of a heat-insulating architectural member in which the decorative heat-insulating sheet 1 of the present invention is laminated on the surface of a heat-conductive extruded shape member 14 in which a predetermined width is removed.

The shape of the extrusion 14 shown in FIG. 3 is merely an example, and other shapes may be used. The lamination may be performed via an adhesive or an adhesive, but other methods can be used. However, in the case of a simple cylinder or prism, the heat insulating material of the decorative heat-insulating sheet 1 is made of a heat-shrinkable material, and is formed in a slightly thicker tube shape than the cylinder or prism, and is covered. Lamination without an adhesive is also possible, and lamination methods other than these are also possible. The structure shown in FIG.
Although it depends on the use of No. 4, it can be used as a frame of a door itself such as a pillar, a skirting board, a Kamoi, a sill, a sliding door, a hinged door, or a frame for attaching a door.

[0048]

EXAMPLES (Example 1) (Preparation of foamed sheet) A low-density polypropylene resin was mixed with a pyrolytic foaming agent (azodicarbonamide) and melted.
After kneading, the mixture was extruded with a twin-screw extruder to obtain an unfoamed sheet of polypropylene resin. The unfoamed sheet thus obtained polypropylene resin, is crosslinked by irradiation with electron beam radiation dose 6.0Mrad, then foamed by heating at 220 ° C., expansion ratio 15 times, a specific gravity of 0.06 g / cm ^3, Thickness 2
mm foamed sheet was obtained. Both surfaces of the obtained foamed sheet of polypropylene resin were subjected to corona discharge treatment. The wettability of the foam sheet surface after corona discharge treatment is 40 dyne /
cm.

(Preparation of decorative sheet) Acrylic resin and vinyl chloride / vinyl acetate copolymer resin = 8/2 (mass) on the surface of a colored acrylic resin film (polymethacrylate, 80 μm thick, manufactured by Kyowa Leather Co., Ltd.) Ratio) as a binder, a gravure ink prepared using a gravure ink prepared to have a predetermined hue and having pigments such as red iron oxide, isoindolinone yellow, titanium white, and carbon black, using a gravure printing method. Was subjected to a decoration process.

Separately, a transparent acrylic resin film having an elongation at break of 110% according to JIS K7127 (using a No. 4 test piece at a test speed of 50 mm / min) and a thickness of 50 μm is heated and softened, and an emboss plate is used. hand,
On the colored acrylic resin film subjected to the decorative treatment obtained above, by heat-sealing and simultaneously embossing, a wood grain conduit was formed as a groove-shaped recess on the surface of the transparent acrylic resin film. I got a sheet. Using a wiping ink containing acryl polyol and hexamethylene diisocyanate as a binder and carbon black as a pigment in a concave portion on the surface of the laminated sheet, filling was performed by a wiping coating method to obtain a doubling embossed sheet subjected to wiping coating. .

On the foamed polypropylene resin sheet prepared as described above, the wiping-coated doubling embossed sheet obtained above was applied using a two-part curable polyurethane resin adhesive comprising a polyester polyol and a polyisocyanate. To obtain a decorative heat insulating sheet.

(Examples 2 to 6) As foamed sheets of polypropylene resin, foaming ratios were 20 times, 25 times, 30 times,
In addition, a decorative heat insulating sheet was obtained in the same manner as in Example 1 except that a 40-fold one was prepared.

(Comparative Examples 1 and 2) Foamed sheets of polypropylene resin having foaming ratios of 5 times and 10 times were prepared, and a decorative heat insulating sheet was obtained in the same manner as in Example 1 except for the above. Was.

Table 1 shows the results of measuring the density and the thermal conductivity of the decorative and heat insulating sheets obtained in the above Examples and Comparative Examples.

[0055]

[Table 1]

As is clear from Table 1, those having expansion ratios of 15, 20, 25, 30, and 40 have excellent heat insulating performance, and particularly those having a density of 0.033 g / cm ³ . Had the highest insulation performance. When the expansion ratio is 5
When the density is higher than that described above, the heat insulation performance is low because the proportion of the voids is small, and particularly, the expansion ratio is 5 times, and the density is 0.044 g / c.
m ³ had the lowest heat insulating performance. In addition, magnification 40
It is considered that the reason why the heat-insulating performance of the doubled filter is lower than that of the 30-times magnification despite the lower density is that the heat-insulating performance is reduced due to continuous bubbles and an increased radiation effect.

[0057]

According to the first aspect of the present invention, since the synthetic resin foamed sheet having a density of 0.02 to 0.1 g / cm ³ is used, the thermal insulation has a very small thermal conductivity. Functional sheets can be provided. According to the invention of claim 2, in addition to the effect of the invention of claim 1, since the synthetic resin foam sheet has closed cells having a diameter of 1000 μm or less, heat insulation due to collision of gas molecules with small thermal insulation is small. We can provide sheets. According to the third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, there is provided a decorative and heat-insulating sheet which can be easily folded and the like following the surface shape of the building member when applied to the building member. be able to. According to the invention of claim 4, in addition to the effect of any one of the inventions of claims 1 to 3, since the foamed sheet manufactured by using the electron beam crosslinking method is used, the closed cell diameter is fine and uniform. In addition, it is possible to provide a decorative heat insulating sheet having a foamed sheet and a smooth surface. According to the invention of claim 5, claims 1 to
In addition to the effects of any one of the three inventions, since a foam sheet manufactured using a chemical crosslinking method is used, a decorative heat insulating sheet having a relatively large cell diameter in the foam sheet can be provided. According to the invention of claim 6, in addition to the effects of any one of claims 1 to 3, since a non-crosslinked foam sheet is used, the foam sheet itself is soft, and the foam sheet is suitable for recycling. A heat insulating sheet can be provided. According to the invention of claim 7, in addition to the effect of any one of claims 1 to 6, the synthetic resin foam sheet and the decorative sheet are laminated via the adhesive layer, so that the cosmetic on the front side is provided. It is possible to provide a decorative heat insulating sheet having few problems such as sheet peeling. According to the invention of claim 8, claim 1 is provided.
In addition to the effects of any one of the inventions, the adhesive layer is preliminarily laminated on the back surface, so that it is possible to provide a decorative and heat-insulating sheet in which the application of the adhesive layer can be omitted every time construction is performed. Claim 9
According to the invention, in addition to the effect of the invention of claim 1 or 2, since the synthetic resin foam layer is a polyolefin resin,
When disposing, it is possible to provide a decorative and heat-insulating sheet having no problem caused by the synthetic resin foam layer. According to the tenth aspect, in addition to the effects of the first, second, or ninth aspects, since the resin constituting the decorative sheet is a polyolefin resin, there is no problem caused by the decorative sheet when discarded. A cosmetic heat insulating sheet can be provided. According to the eleventh aspect, in addition to the effects of the first, second, ninth, or tenth aspects, the surface sheet of the decorative sheet is made of an acrylic resin or a fluorine-based resin. In this case, it is possible to provide a decorative heat insulating sheet having excellent surface antifouling properties. According to the invention of claim 12, claim 1 or 2
In addition to the effects of the invention, as the resin constituting the base material of the synthetic resin foam sheet and decorative sheet, carbon, hydrogen, oxygen,
And a resin having a basic skeleton composed of an element selected from nitrogen and nitrogen is used. According to the thirteenth aspect, in addition to the effects of the first or second aspect, both the synthetic resin foam sheet and the decorative sheet are defined as having a heat resistance of a temperature of 80 ° C. or more. A decorative heat-insulating sheet that is less likely to be degraded by direct sunlight or the like when affixed to the outside of the sheet. According to the invention of claim 14, heat insulation and design, wherein the decorative heat insulating sheet of any one of claims 1 to 13 is laminated on a plate-like or panel-like building member made of a heat conductive material. Can be provided. According to the invention of claim 15, a cosmetic body provided with heat insulation and a design, in which the decorative heat insulating sheet of any one of claims 1 to 13 is laminated on an extruded material made of a thermally conductive material. Can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a decorative heat insulating sheet.

FIG. 2 is a sectional view of a decorative sheet.

FIG. 3 is a cross-sectional view showing a state where a decorative heat insulating sheet is laminated on a panel.

FIG. 4 is a cross-sectional view showing a state in which a decorative heat insulating sheet is laminated on an extrusion.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 decorative heat insulating sheet 2 synthetic resin foam sheet 3 decorative sheet 4 adhesive layer 5 fibrous base material 6 base material 7 pattern layer 8 colored layer 9 transparent resin protective layer 10 recess 13 panel 14 extrusion mold material

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F100 AA21H AA23H AA37H AH03H AK01A AK01B AK03A AK07 AK15 AK15J AK22 AK22J AK25 AK25B AK25G AK41G AK51G AL05 AR00C AR00D BA02 BA03 BA07BA10 EB01 BA10 JJ01 JJ01D JJ02 JJ03B JK06 JK13 JK13A JL06 JL09 JL13C JL16 YY00A YY00B

Claims (15)

[Claims] 1. A synthetic sheet having a synthetic resin sheet as a base material is laminated on one side of a synthetic resin foam sheet, and the density of the foam sheet is 0.02 to 0.1 g / cm ^3. And decorative insulation sheet. 2. The decorative heat insulating sheet according to claim 1, wherein the foams of the synthetic resin foam sheet are closed cells having a diameter of 1000 μm or less. 3. The synthetic resin foam sheet has a thickness of 0.5.
The decorative heat-insulating sheet according to claim 1 or 2, wherein the thickness is from 3.0 mm to 3.0 mm. 4. The decorative insulating sheet according to claim 1, wherein the synthetic resin foam sheet is a soft foam sheet manufactured by using an electron beam crosslinking method. 5. The decorative heat insulating sheet according to claim 1, wherein the synthetic resin foam sheet is a soft foam sheet manufactured by using a chemical crosslinking method. 6. The decorative heat insulating sheet according to claim 1, wherein the synthetic resin foam sheet is a non-crosslinked soft foam sheet. 7. The decorative heat insulating sheet according to claim 1, wherein the synthetic resin foam sheet and the decorative sheet are laminated via an adhesive layer. 8. An adhesive layer to be adhered is laminated on a surface of the synthetic resin foam sheet opposite to a surface on which the decorative sheet is laminated. Decorative insulation sheet. 9. The decorative heat insulating sheet according to claim 1, wherein the resin component constituting the synthetic resin foam layer is a polyolefin resin. 10. The decorative heat insulating sheet according to claim 1, wherein the resin component constituting the decorative sheet is a polyolefin resin. 11. The decorative heat insulating sheet according to claim 1, wherein at least the top sheet of the decorative sheet is made of at least one layer of a weather-resistant sheet made of an acrylic resin or a fluororesin. . 12. The resin constituting the base material of the synthetic resin foam sheet and the decorative sheet is a resin having a basic skeleton composed of an element selected from carbon, hydrogen, oxygen, and nitrogen. The decorative heat-insulating sheet according to claim 1 or 2, wherein 13. The decorative heat insulating sheet according to claim 1, wherein both the synthetic resin foam sheet and the decorative sheet have a heat resistance of a temperature of 80 ° C. or higher. . 14. A decorative body, wherein the decorative heat insulating sheet according to any one of claims 1 to 13 is laminated on a plate or panel made of a heat conductive material. 15. A decorative body, wherein the decorative heat insulating sheet according to any one of claims 1 to 13 is laminated on an extruded material made of a heat conductive material.