WO1991006425A1

WO1991006425A1 - Stainless steel-resin laminate product and process for manufacturing same

Info

Publication number: WO1991006425A1
Application number: PCT/JP1989/001173
Authority: WO
Inventors: Masaki Izumi; Akihiko Kasahara
Original assignee: Nippon Kinzoku Co., Ltd.
Priority date: 1989-11-03
Filing date: 1989-11-17
Publication date: 1991-05-16
Also published as: KR920700913A; CA2006913A1

Abstract

A stainless steel-resin laminate sheet (11) of the invention is composed of a thin sheet of stainless steel (12), a first hot-melt adhesive layer (13) applied on at least one side of said stainless steel sheet (12) and a second hot-melt adhesive layer (14) applied on said first adhesive layer (13), wherein said first adhesive layer (13) comprises a hot-melt adhesive containing a graft copolymer between a polyolefinic polymer and an aliphatic unsaturated carboxylic acid or its anhydride. A process for manufacturing a product from the laminate sheet of the invention comprises the step of forming a laminate sheet (11) by applying a first adhesive layer (13) comprising a hot-melt adhesive containing a graft copolymer between a polyolefinic polymer and an aliphatic unsaturated carboxylic acid or its anhydride on at least one side of a stainless steel sheet (12) and applying a second hot-melt adhesive layer (14) on the first adhesive layer (13), and the step of superposing this laminate sheet (11) on the surface of a base material (31, 41, 51 or 61) and heating the assembly to effect thermal fusion for integration.

Description

Description Stainless steel / resin laminate product and manufacturing method thereof

[Application]

The present invention relates to a stainless-resin laminate sheet in which a hot-melt adhesive layer for adhesion is adhered to the surface of a stainless steel thin plate, various products using the same, and methods for producing these.

[Background technology]

BACKGROUND ART Conventionally, a metal coating has been applied to the surface of a synthetic resin base. As a method of applying a metal coating to the surface of such a synthetic resin, there has been a method of applying a metal coating to the surface of a resin base. However, such a method has disadvantages such as a complicated plating process, high cost, and difficulty in application to a large substrate.

— On the other hand, there is a method of bonding a thin metal sheet to the surface of a synthetic resin base. Such a material is characterized in that it is only necessary to attach a metal sheet to the surface of a molded resin substrate by bonding, and the work is simple, and the substrate can be easily attached to a large-sized substrate. In this case, directly attaching a thin metal sheet to a synthetic resin base is complicated and inefficient. For this reason, a laminated sheet in which a synthetic resin adhesive layer is previously applied to a thin metal sheet is manufactured, and the laminated sheet is bonded to a synthetic resin base. Such a laminate sheet is described in JP-B-49-91.

There are those disclosed in Japanese Patent No. 184733 or Japanese Patent Publication No. 61-26224.

However, in general, the adhesion between the metal and the synthetic resin adhesive layer has a relatively low adhesive strength and tends to cause problems such as peeling. For this reason, most of such materials generally use aluminum sheets that are easy to bond as metal. However, while this aluminum is easy to bond, it has a poor quality and is easily scratched.

On the other hand, stainless steel has the advantages of being hard and resistant to scratching, having extremely high corrosion resistance, having a high-grade metallic luster, and being easily colored. Such a laminated sheet in which a thin sheet of stainless steel is coated with a layer of synthetic resin is disclosed in Japanese Patent Application No.

This is disclosed in Japanese Patent Application Laid-Open No. 226184 (Japanese Patent Application Laid-Open No. 63-82840). However, this stainless steel has a poor adhesion due to the formation of a strong oxide film on the surface, and it is not possible to sufficiently increase the bonding strength between the stainless steel sheet and the synthetic resin adhesive layer. It was difficult. For this reason, if this laminate sheet is subjected to machining before being bonded to the substrate, there is a problem that the adhesive layer is peeled off, and the application range of such a laminate sheet is limited. There was a problem. [Disclosure of the Invention]

The present invention has been made based on the above circumstances, and It is an object of the present invention to provide a laminated sheet having a sheet of stainless steel and an adhesive layer firmly adhered to the sheet, various products utilizing the properties thereof, and a method for producing such a product.

The laminate sheet of the present invention covers at least one surface of the stainless steel sheet with a first hot melt adhesive layer, and further has a second adhesive layer on the first adhesive layer. The coating layer is provided with two adhesive layers. The first adhesive layer is a hot-melt adhesive containing a polyolefin-based polymer and a copolymer of an aliphatic unsaturated carboxylic acid or an anhydride thereof, and a second hot-melt adhesive. The shape of the adhesive layer is selected from those having good adhesiveness to the substrate to be bonded, and those having practically sufficient adhesiveness to as many kinds of synthetic resin materials as possible.

In such a laminated sheet, the first adhesive layer that adheres to the stainless steel sheet is made of the above-mentioned material, which has a strong adhesive force to the stainless steel. Have. Further, a second adhesive layer is coated on the first adhesive layer, and the second adhesive layer makes adhesion to the substrate simple and strong. Such a laminate sheet is firmly integrated as a whole, and it is easy to cut and press this laminate sheet. Furthermore, since the adhesive layer also provides lubrication to the mold, there is no need to use a lubricant during press molding, and the work is easy.

Such a laminate sheet can be easily and reliably bonded to a synthetic resin base. This laminate sheet The laminated sheet can be set in advance in a mold to be molded, and thereafter, a resin material is injected into the mold and the substrate is injection-molded, and at the same time, the laminated sheet can be bonded to the molded substrate. O Efficient production of stainless steel / resin laminate products o

[Brief description of drawings]

FIG. 1 is a sectional view of a stainless steel / resin laminate sheet, and FIG. 2 is a schematic view showing a method and an apparatus for manufacturing the same. 3 and 4 show the molding material, FIG. 3 is a perspective view, FIG. 4 is a cross-sectional view taken along the line IV--IV of FIG. 3, and FIGS. 5 and 6 show this molding. It is the schematic which shows the manufacturing method and apparatus of a material. 7 and 8 show a bumper, FIG. 7 is a perspective view, FIG. 8 is a cross-sectional view taken along the line VI of FIG. 7, and FIG. 9 is a schematic diagram showing a method of manufacturing the bumper. Fig. 10 and Fig. 11 show wheels, Fig. 10 is a perspective view, Fig. 11 is a cross-sectional view taken along the line XI-XI of Fig. 10, and Figs. Figures 13 and 13 are schematic diagrams showing the method of manufacturing this wheel, Figures 14 and 15 show a foil cap, Figure 14 is a perspective view, and Figure 15 is a view. Fig. 14 is a cross-sectional view taken along the line XV-XV, and Figs. 16 and 17 are schematic views showing a method of manufacturing the foil cap. FIG. 4 is a cross-sectional view showing a method for manufacturing the same. [Best Mode for Carrying Out the Invention]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 shows an embodiment of a stainless steel resin laminate sheet. The stainless-steel laminate sheet 11 has a first hot-menolet-type adhesive layer 12 adhered to one surface of a stainless steel sheet 12 made of a stainless steel thin plate. On the adhesive layer 12, a second hot-melt adhesive layer 13 is further adhered.

The stainless steel sheet 12 has a thickness of about 0.01 mm to 0.5 mm depending on the specification. In addition, according to the specifications, the surface is glossy, satin finish, hairline finish, and other surface finishes, and if necessary, for example, the thickness of the surface oxide film is adjusted to adjust the light. Coloring is done by interference.

The first adhesive layer 13 is for bonding to the stainless steel sheet 12 and is a graph of a polyolefin polymer and an aliphatic unsaturated carboxylic acid or its anhydride. It consists of a hot-melt adhesive resin consisting of a copolymer or a mixture of this dahlaf copolymer and a polyolefin-based polymer. This adhesive has an extremely strong adhesive force to a stainless steel material, so that practically sufficient adhesion to the stainless steel sheet 12 is achieved.

When the graft copolymer and the polyolefin-based polymer are mixed, the content of the graft copolymer in the mixture is preferably 0.5% by weight or more. In addition, the type of the aliphatic unsaturated carboxylic acid or its anhydride that is copolymerized with the polyolefin-based polymer is acrylic acid, methacrylic acid, or the like, in view of the easiness of the graft copolymerization. It is preferable to select from maleic acid, maleic anhydride, citraconic acid, citraconic anhydride, itaconic acid, itaconic anhydride and the like. The graft ratio of the graft copolymer is selected according to the type of unsaturated carboxylic acid to be graft-copolymerized with the polyolefin-based polymer, but is usually from 0.01 to 5.0. A range of% is preferred.

Further, the second adhesive layer 14 is for improving the adhesiveness to a substrate to which the laminated sheet is to be adhered. That is, the first adhesive layer 13 has the first purpose of adhesiveness to the stainless steel sheet 12 and has insufficient adhesiveness to the synthetic resin material. Therefore, the second adhesive layer 14 is formed on the first adhesive layer 13, and the second adhesive layer 14 has good adhesiveness with the synthetic resin material constituting the base. If this is the case, the bonding work between the laminate sheet 11 and the base will be extremely easy and reliable. The kind of the adhesive constituting the second adhesive layer 14 is variously selected according to the kind of the synthetic resin material of the substrate to be bonded, the required bonding strength, and the like. In addition, the selection is made in accordance with the workability required when the laminate sheet is press-formed or thermally welded to a substrate. Generally, the adhesive constituting the second adhesive layer 14 is preferably one having sufficient adhesiveness and workability in common to various commonly used synthetic resin materials. New In consideration of these points, the adhesive used for the second adhesive layer 14 includes three types of thermoplastic copolyester resin, ethylene copolymer, and another type of thermoplastic resin. An adhesive resin composition obtained by melting and mixing the components is preferable. The above-mentioned thermoplastic polyester resin is composed of terephthalic acid as a dicarboxylic acid component at 4 ° to 100% by mole and other aromatic dicarboxylic acid at 0 to 60% by mole. Of 1,4-butanediol 40-: L 0 0 mol% and diethylene daricol or 1,6-hexanediol 0- 60 mol%, and further, the molecular weight 600- 6 0: Polytetramethylene glycol based on total dicarboxylic acid: 0-: L0 mol%, melting point 90-: L00. C, It is preferably a thermoplastic copolymer polyester resin having a reduced viscosity of 0 or more.

The component of the thermoplastic copolyester resin is 30 to 90%, and the above-mentioned ethylene copolymer is selected from epoxy groups, carboxylic acid groups or dicarboxylic anhydride groups. One or more functional groups, and the total amount of the ethylene copolymer and the thermoplastic resin is 70 to 10% by weight. More preferably, the proportion of the component of the ethylene copolymer in the total amount with the plastic resin is 5 to 100% by weight.

Examples of the other thermoplastic resin include vinyl aromatic hydrocarbon polymers or copolymers, (meth) acrylic acid ester polymers or copolymers, ethylene polymers, and polyolefins. It is preferable that one or more of these types of elastomers are used.

Next, a method and an apparatus for manufacturing such a laminated sheet 11 will be described with reference to FIG.

Reference numeral 15 in FIG. 2 denotes a roll around which the stainless steel sheet 12 is wound. The roll 15 supplies a belt-shaped stainless steel sheet 12. The stainless sheet 12 is guided by a guide roller 19 and heated to a predetermined temperature by a heater 22 before being sent between a pair of thermocompression rollers 21. Reference numeral 17 denotes a roller for supplying a resin material film 24 for forming the adhesive layers 13 and 14. The film 24 is obtained by previously welding a resin material film forming the first adhesive layer 13 and a resin material film forming the second adhesive layer 14 to each other. in a thickness of 5 mm, it is, for example compression temperature 1 2 0~ 2 0 0 ° C , crimping pressure ^{0. 3~ 3. 0 kg / cm 2} , are integrally welded to each other at bonding time 5-6 0 seconds, The film 24 has a thickness of about 1 mm. The film 24 is superimposed on the above stainless steel sheet 12 and fed between the thermocompression rollers 21. Then, the stainless steel sheet 12 and the film 24 are thermally welded to each other by the thermocompression bonding roller 21 to form an integrated laminated sheet 11. Then, the laminated sheet is further heated by the heater 23 and then wound up by the wind-up roll 16. In this case, the pressing pressure of the pressing roller 21 is 1.5 to 2. O kg Z cm ² , and the pressing temperature is 130 to 150 ° C. 18 is another type of resin A roll for supplying the film 25, wherein the resin film 25 of any type is wound around the roll 18 and supplied, whereby the first and second adhesives are provided. A further resin layer can be applied on layers 13,14.

The laminate sheet 11 of such an embodiment has, for example, an adhesive strength between the stainless sheet 12 and the first adhesive layer 13 of not less than 6.0 kgcm, and Peeling is completely prevented. Further, such a laminated sheet 11 has sufficient adhesiveness to various synthetic resin materials in common. For example, by laminating this laminated sheet 11 on various synthetic resin materials and heating it at 190 ° (: 5 seconds), this laminated sheet can be bonded. Adhesion strength is 2.8 kg / cm for polycarbonate substrate, 3.4 kg Zcm for ABS, 1.0 kg Zcm for polyethylene, 2.6 kg / cm for rigid polyvinyl chloride, solid chloride For vinyl, it is 3. O kg Z cm In addition, it can be bonded to other synthetic resin materials and metal materials by heating at, for example, 180 ° C for 5 minutes, and the bonding strength in this case is, for example, aluminum. 2.3 kg Z cm for iron, 4.5 kg Z cm for iron, and 2. O kg / cm for polyester.

It should be noted that the laminated sheet 11 is not necessarily limited to the above, and can be changed in accordance with various specifications. For example, the adhesive layer is not limited to one side and may be applied to both sides. The adhesive layer does not need to be applied to the entire surface of the stainless steel sheet, but may be applied to some surfaces. As described above, since the laminate sheet 11 has the stainless sheet 12 and the adhesive layers 13 and 14 firmly integrated, the laminate sheet 11 can be easily cut, bent, Pressing or the like can be performed, and the laminate sheet can be easily and firmly bonded to the base. By utilizing such characteristics, various products using this laminated sheet can be provided.

For example, FIGS. 3 and 4 show a molding material for an automobile, for example, a side molding 30 using the laminated sheet. This side molding is provided with an elongated band-shaped molding body 31 made of, for example, a vinyl chloride resin material. On the surface of the molding body 31, a laminated body obtained by cutting the laminate sheet 11 into an elongated band shape is provided. Sheet 11 is heat welded. This is manufactured in a long form, cut into appropriate lengths, and attached to the side of the vehicle. In this case, since the above-mentioned laminated sheet 11 is firmly adhered to the molding body 31, even if this side molding 31 is cut or bent, the stainless sheet of the laminated sheet 11 is cut. There will be no peeling of 1 2.

As shown in FIG. 5, for example, such a side molding 30 is a strip-shaped laminated sheet supplied from a roll 34 to a nozzle 33 of an extruder 32 for extruding the molding main body 31. Then, the laminate sheet 11 is extruded together with the resin, and the molding body 31 is molded. At the same time, the laminate sheet 11 is bonded to the molding body. Also, as shown in FIG. 6, the laminated sheet 11 supplied from the roll 34 onto the molding body 31 extruded from the extruder 32 These may be overlapped, and these may be pressed by a pressure roller 35 to be thermally welded.

In addition to the above-mentioned side malls, these mall materials include food top malls, front wind malls, Norwegian drip malls, malls, door belt malls, and quarter wind malls. MONOLAE, NOCKWIND MONOLAY, LAGAGE ♦ MONOLAY, wheel arches, moldings, step moldings, etc.The construction, manufacturing method, etc. of these are the same as those of the above side moldings. It is almost the same.

7 and 8 show a bumper 40 of an automobile using the laminated sheet. The bumper 40 includes a bumper body 46. The bumper body 46 is formed by integrating a surface member 41 made of a synthetic resin material and a shock absorbing member 42 made of a foamed synthetic resin material. On the front surface, a band-like laminated sheet 11 is adhered horizontally across the entire width. Since the laminated sheet 11 is extremely firmly adhered to the bamba body 46 as described above, a thick stainless sheet of the laminated sheet 11 should be used. Can be. Therefore, even when an object collides somewhat strongly with the laminated sheet 11, the laminated sheet 11 is not deformed or peeled off, and a high-performance bamba can be provided.

FIG. 9 shows an apparatus and a method for manufacturing such a bumper 40. First, this laminate sheet is cut and processed into a predetermined band shape, and a material whose edge is bent if necessary is prepared. Then, the strip-shaped laminate sheet 11 is cut into a predetermined length. You. On the other hand, at a predetermined position of a mold 43 for molding the surface member 41 of the pamper main body 46, a groove 44 for fitting the laminated sheet 11 is formed. Then, the band-shaped laminated sheet 11 is bent into a shape conforming to the shape of the entire surface of the bamba, and fitted into the groove 44 of the mold 43. In this case, the laminated sheet 11 may be temporarily fixed in the mold 43 using a pressure-sensitive adhesive tape or the like. Then, the upper mold 45 is brought into contact with the mold 43, and a resin is injected into the cavity to form the surface member 41. At this time, the laminated sheet 11 is firmly bonded to the surface member 41 by the heat of the molten resin. According to this method, this Bamba

The laminate sheet 11 can be bonded simultaneously with the injection molding of the 40 surface members 41, and the process is simplified. The method of placing the laminate sheet 11 molded in a predetermined shape in this way in a mold and simultaneously performing resin injection molding and bonding to the laminate sheet is as follows. It is obvious that the present invention is not limited to the manufacture of the product, but can be applied to various products.

FIGS. 10 and 11 show a synthetic resin foil 50 of an automobile using the laminated sheet. This foil

50 is provided with a foil body 51 made of a fiber reinforced synthetic resin, and a press formed by pressing a laminated sheet 11 having a relatively thick stainless steel sheet on its outer side surface 52 into a predetermined shape. Molded sheet 1 1a is bonded. Such a foil 50 includes a foil body 51 made of a fiber-reinforced synthetic resin, and is lightweight. However, this fiber-reinforced synthetic resin does not contain reinforcing fibers. Therefore, the appearance of the surface is poor, it is necessary to apply a surface finish painting, and if a stone etc. collides and scratches the surface, there is a possibility that cracks may occur from that part . However, since the relatively thick press-formed sheet 11a is integrally adhered to the outer surface of the foil 50 as described above, the appearance is good, and it is not necessary to apply a finish coating, etc. In addition, the wheel body 51 is not damaged even if a stone or the like collides with the outer surface of the foil, and the reliability is high.

A method of manufacturing the foil 50 will be described with reference to FIGS. 12 and 13. First, the above-mentioned laminated sheet 11 is press-formed into a shape corresponding to the outer surface of the foil main body 51 to form a press-formed sheet 11a as shown in FIG. In this case, as described above, since the stainless steel sheet 12 of the laminated sheet 11 and the adhesive layers 13 and 14 are integrally and firmly bonded, such press molding is performed. They do not peel off at all. In addition, since the second adhesive layer 14 acts as a lubricator between the press die and the lubricating material, the need for a lubricating material or the like is eliminated. There is no need to wash a, and the work becomes extremely simple. Then, the press-formed sheet 11 a formed in this way is set at a predetermined position of the mold 53. Then, another mold 55, 56 is abutted against this mold 53, and a resin containing a reinforcing fiber is injected into the cavity to form the foil body 51. In this case, due to the heat generated during the injection of the resin, the press-formed sheet 11 a is simultaneously formed with the foil body 51. It is integrally adhered to the foil body 51. Therefore, the process is simple and the cost is reduced. Further, even when the shape of the press-formed sheet 11a is somewhat complicated, the press-formed sheet 11a and the resin material are firmly adhered to each other without any gap, and extremely strong bonding is performed.

Note that this method can be applied not only to the production of the foil as described above, but also to the production of other products.

14 and 15 show a wheel cap 60 of an automobile using the laminated sheet 11. The foil cap 60 includes a cap body 61 made of a synthetic resin material, and a laminate sheet 11 is adhered to an outer surface 62 of the cap body 61. The outer surface 62 has a relatively simple shape. This is lightweight because the cap body 61 is made of a synthetic resin material, and has a laminated sheet on its outer surface. Since 11 is adhered, the appearance is good, and the stone is prevented from being scratched even when hit.

Further, a method of manufacturing the above-mentioned foil cap will be described with reference to FIGS. 16 and 17. First, the laminated sheet 11 is punched into a predetermined shape corresponding to the outer shape. Next, as shown in FIG. 16, the punched laminate sheet 11 is placed at a predetermined position on the outer surface forming surface portion 65 of the mold 63. Then, the upper mold 64 is joined to the mold 63, and the resin is injected into the cavity as shown in FIG. In this case, due to the injection pressure of this resin, this laminated sheet 11 It is pressed by the outer side surface forming surface portion 65, adheres to the outer side surface forming surface portion 65, and is formed into a shape corresponding to this shape. At the same time, the laminate sheet 11 is integrally bonded to the cap body 61 by the heat of the resin.

According to such a method, the laminated sheet 11 can be molded and bonded at the same time as the molding of the cap body 61, and the manufacturing process is extremely simplified. If the thickness of the stainless steel sheet of the laminated sheet 11 is reduced, the laminated sheet can be formed into a considerably complicated shape.

It should be noted that this method is not limited to the manufacture of the wheel cap as described above, but can be applied to the manufacture of other products.

Further, FIG. 18 shows a building material using the laminated sheet, for example, a wall material device. In the figure, reference numeral 71 denotes a wall of a building, and an attachment member 72 is attached to the wall 71 with a nail 74 or the like. The mounting member 72 is made of, for example, a foamed synthetic resin material or the like, and is configured to be easily cut and bent. The mounting member 72 has a plurality of adhesive projections 73 projecting at predetermined intervals. Further, lib is a decorative board, and the laminated sheet body 11 is cut into a predetermined size with its adhesive layer side as a back surface, and a part is bent as required, and It is one that has been subjected to various unevenness processing and coloring. These decorative plates 11b are superimposed on the mounting member 72, and the back surface thereof is adhered to the adhesive projection 73.

This can be done with nails, screws, or other The mounting bracket is not exposed and the appearance is good. Also, since the mounting member 72 is interposed between the decorative board lib and the wall 71 and a space is formed between the mounting member 72 and the wall 71, the heat insulating property is excellent. In this case, first, after attaching the mounting member 7 2 to the wall 71, a decorative board 1 lb is placed on the wall, and the decorative board 1 1 b is attached to the adhesive projection 7 of the mounting member 7 2 with a heater 5 or the like. By heating the part in contact with 3, this decorative board lib can be easily attached, and there is no trace left on this adhesive part.

This wall device can be installed not only on vertical walls, but also on ceilings, floors, and other interior and exterior surfaces of buildings, and the above wall devices include all of these. Shall mean.

[Industrial applications]

As described above, according to the present invention, a stainless steel * resin laminate product having a stainless steel sheet adhered to the surface can be manufactured extremely easily and reliably. Various effects can be applied to this laminated sheet, and it can be applied to a very wide range of products.

Claims

The scope of the claims

(1) A thin sheet of stainless steel, a first adhesive layer applied on at least one side of the thin sheet, and a second hot melt applied on the first adhesive layer. The first adhesive layer is formed from a hot melt type adhesive containing a graft copolymer of a polyolefin-based polymer and an aliphatic unsaturated carboxylic acid or an anhydride thereof. A stainless steel / resin laminate sheet characterized in that:

(2) A stainless steel / resin laminate sheet wherein the second adhesive layer of the stainless steel / resin laminate sheet according to claim 1 is thermally bonded to a surface of a synthetic resin base. Made using

(3) an elongated flexible synthetic resin molding body; and a strip-shaped stainless resin laminate according to claim 1, which is adhered to a surface of the molding body along a longitudinal direction thereof. A molding material for a vehicle, comprising a body sheet.

(4) The bamba body made of synthetic resin, and the stainless-steel resin laminate sheet according to claim 1, which is adhered to the surface of the bamba body and has an elongated band shape curved along the surface of the bamba body. A bamba for a vehicle, comprising:

(5) A foil body made of a synthetic resin, and a stainless steel sheet according to claim 1, wherein the foil body is press-formed into at least the same shape as the outer surface of the foil body and bonded to the outer surface of the wheel body. Less ♦ Vehicle foil featuring a resin laminate sheet.

(6) The vehicle foil according to the above (5), wherein the foil main body is formed of a fiber-reinforced synthetic resin.

(7) A vehicle comprising: a foil cap body made of a synthetic resin; and the stainless steel / resin laminate sheet according to claim 1 bonded to at least an outer surface of the foil cap body. Foil cap.

(8) A decorative plate formed from the stainless steel resin laminate sheet according to claim 1 and formed into a predetermined shape with the adhesive layer on the back side, and a synthetic resin that can be attached to a wall surface and is a synthetic resin. A wall material device, comprising: a mounting member having a protruding portion made of an oily bonding protrusion.

(9) At least one surface of a stainless steel sheet is made of a hot-melt adhesive containing a graft copolymer of a polyolefin-based polymer and an aliphatic unsaturated carboxylic acid or an anhydride thereof. An adhesive layer and a second hot-melt adhesive layer further applied on the first adhesive layer to form a laminate A method for producing a stainless steel / resin laminate product, comprising: a step of forming a sheet; and a step of superposing the laminate sheet on a surface of a substrate, heating and integrally bonding the laminate sheet with the substrate.

(10) The step of forming the laminate sheet includes a first film made of a resin material constituting the first adhesive layer and a film made of a resin material constituting the second adhesive layer. Forming a single film by thermally bonding the two to each other, and thermally bonding the single thermally bonded film to the stainless steel thin plate. The method for producing a stainless steel / resin laminate product according to claim 9, wherein

(11) The step of heat-bonding the laminate sheet and the base is performed by extruding a strip-shaped laminate sheet together with a resin material from a nozzle of an extruder, and extruding the base at the same time as the extrusion. 10. The method for producing a stainless steel / resin laminate product according to claim 9, wherein the laminate sheet is thermally bonded to a surface of the formed base.

(12) The step of heat-bonding the laminate sheet and the substrate includes a step of disposing the laminate sheet along an inner surface of a mold for molding the substrate, and a step of forming a resin material in the mold. 10. The stainless steel resin laminate according to claim 9, further comprising: a step of subjecting the substrate to injection molding and a step of thermally bonding a laminate sheet to the surface of the molded substrate. How to make body products. (13) The step of heat-bonding the laminate sheet and the base is a step of cutting the laminate sheet into a band, and a step of bending the laminate sheet cut into a band to form the base. Placing the resin sheet along the inner surface of the mold to be molded, and injecting the resin material into the mold to injection mold the substrate, and simultaneously thermally bonding the laminate sheet to the surface of the injection molded substrate. 10. The method for producing a stainless steel / resin laminate product according to claim 9, further comprising the step of:

(14) The step of thermally bonding the laminate sheet and the base body includes: a step of press-molding a band-like laminate sheet into a predetermined shape; and a step of applying the press-molded laminate sheet to the laminate sheet. Forming the base A step of disposing the resin along the inner surface of the mold, and injecting a resin material into the mold to injection-mold the base, and simultaneously heat-bonding the laminate sheet to the surface of the formed base 10. The method for producing a stainless steel / resin laminate product according to claim 9, wherein the method comprises the steps of:

(15) The step of heat-bonding the laminate sheet and the base is a step of cutting a strip-shaped laminate sheet into a predetermined shape, and attaching the cut laminate sheet to the base. A step of disposing along the inner surface of the mold to be molded, and injecting a resin material into the mold to injection-mold the base, and simultaneously pressing the laminated sheet against the inner surface of the mold by the pressure of the injection molding. Then, it is molded into a shape corresponding to the inner surface of the mold, and the surface of the injection-molded substrate is formed. 10. The method for producing a stainless steel / resin laminate product according to claim 9, further comprising a step of thermally bonding the molded laminate sheet.

(16) The step of heat-bonding the laminate sheet and the base is: forming the laminate sheet into a predetermined shape with its adhesive layer on the back side; and a base having an adhesive projection. A step of attaching the base to another member; and superimposing the back surface of the molded laminate sheet on the tip of the adhesive projection of the base attached to the another member. And a step of heating a portion of the laminate sheet superimposed on the tip of the bonding protrusion to thermally bond the laminate sheet to the bonding protrusion. Item 9. Stainless steel ♦ Method for manufacturing laminated resin products.