JP2002160328A - Resin laminate and leather-like sheet - Google Patents

Abstract

(57) [Problem] To provide a resin laminate in which laminated layers are firmly adhered. In a resin laminate 1 having a polyolefin-based thermoplastic elastomer layer 10, a primer layer 30 laminated on the elastomer layer 10, and a polyurethane layer 20 laminated on the primer layer 30, a primer layer is formed by: A compound having an active hydrogen-containing functional group and / or
Alternatively, it is formed from a polyolefin-based thermoplastic elastomer containing an adhesion improver comprising a compound having an inorganic / organic ratio of 0.5 or more.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a resin laminate and a leather-like sheet.

[0002]

2. Description of the Related Art In recent years, resinous leather seats have been frequently used for interior materials and furniture for automobiles. As such a leather-like sheet made of resin, a vinyl chloride resin-based material or a urethane-based material having relatively high surface strength is generally used, and a polyolefin-based thermoplastic elastomer (hereinafter, referred to as TPO) having low surface strength is used. Had not been.

[0003] However, vinyl chloride resin has problems of low environmental adaptability such as generation of harmful substances such as chlorine-based gas upon incineration, and urethane is expensive.
The appearance of a resin-made leather-like sheet mainly composed of PO has been desired. In response to such demands, TPO-based leather-like sheets comprising a TPO layer and a urethane-based surface treatment layer have been developed, and are now mainly used for furniture.

[0004]

However, in the above-mentioned TPO-based leather-like sheet, since the adhesion between the TPO layer and the polyurethane layer is weak, the surface strength (abrasion resistance) is lower than that of the TPO itself. There is a problem that it has not been improved so much. For this reason, it is difficult to use the above-mentioned TPO-based leather-like sheet for applications requiring high surface strength, and it is desired to develop a TPO-based leather-like sheet having high surface strength and using TPO as a main material. It is rare.

[0005] It is an object of the present invention to provide a resin laminate and a leather-like sheet in which the laminated layers are firmly bonded.

[0006]

The resin laminate according to the present invention comprises a polyolefin-based thermoplastic elastomer layer, a primer layer laminated on the polyolefin-based thermoplastic elastomer layer, and a polyurethane layer laminated on the primer layer. Wherein the primer layer is formed from a polyolefin-based thermoplastic elastomer containing an adhesion promoter, wherein the adhesion promoter is a compound having an active hydrogen-containing functional group and / or an inorganic resin. /
It is a compound having an organic ratio of 0.5 or more.

[0007] In the above, the TPO constituting the TPO layer and the primer layer include (1) an elastomer having polypropylene as a hard segment and polyethylene as a soft segment, (2) an elastomer having ethylene and a small amount of a diene component, (3) ) Ethylene-propylene-diene rubber (EPDM), (4) ethylene-propylene rubber (EPR), (5) butyl rubber-grafted polyethylene, (6) styrene-based elastomer, (7) each of elastomers (1) to (6) (rubber ), Blended, (8) organic peroxide added to (1) to (7) and partially crosslinked,
(9) Those modified by graft modification with an unsaturated hydroxy monomer or an unsaturated carboxylic acid derivative can be used.
Note that a foamed TPO may be used.

[0008] The active hydrogen-containing functional group is not particularly limited as long as it has active hydrogen, but an amino group is ideal. Here, the number of amino groups is not particularly limited, and aliphatic containing at least one amino group,
An alicyclic or aromatic amine compound can be employed.

Here, the amine compounds include linear aliphatic polyamines such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, polyoxypropylenediamine, polyoxypropylenetriamine, and aliphatic aliphatic amines such as cyclic aliphatic polyamines. Amines, mensendiamine, isophoronediamine,
Bis (4-amino-3-methyldicyclohexyl) methane, diaminodicyclohexylmethane, bis (aminomethyl) cyclohexane, N-aminoethylpiperazine,
3,9-bis (3-aminopropyl) 2,4,8,10
Aliphatic cyclic amines such as tetraoxaspiro (5,5) undecane and m-xylenediamine, aliphatic aromatic amines such as α- (m / p-aminophenyl) ethylamine,
m-phenylenediamine, diaminodiphenylmethane,
Aromatic diamines such as diaminodiphenylsulfone and diethyldimethyldiaminodiphenylmethane can be employed. Preferred amine compounds include N in urethane.
It has high reactivity with CO groups, low toxicity, low volatility and low odor.

A compound having an inorganic / organic ratio of 0.5 or more can be used alone or in combination with the compound having an active hydrogen-containing functional group. Here, when the inorganic / organic ratio of the compound is less than 0.5, the adhesiveness (compatibility) with the polyurethane layer having an inorganic group is too low because the inorganicity of the adhesive strength improver is too low. Will decrease. More preferably, the inorganic / organic ratio is 0.6 or more.

As the compound having an inorganic / organic ratio of 0.5 or more, for example, light-resistant stabilizers, heat-resistant stabilizers, and other compounds such as aliphatic and aromatic organic compounds can be used. , A heat stabilizer and / or a light stabilizer. As the heat stabilizer, a hindered phenol-based antioxidant, a phosphorus-based processing stabilizer, a lactone-based processing stabilizer, a sulfur-based processing stabilizer, or the like can be used. On the other hand, as light stabilizers, benzotriazole UV absorbers, triazine UV absorbers, benzophenone UV absorbers, benzoate light stabilizers,
A hindered amine light stabilizer or the like can be employed.

The content of the adhesion improver is 0.001 to 5
It is preferably 0% by weight. If it is less than 0.001, there is a possibility that a sufficient effect of improving the adhesive strength may not be obtained.
If it exceeds 50% by weight, the adhesive strength may be reduced. More preferably, it is 0.01 to 40% by weight, and still more preferably 0.1 to 30% by weight. here,
When a compound having an active hydrogen-containing functional group and a compound having an inorganic / organic ratio of 0.5 or more are used in combination, the content of the adhesion improver means the total weight% of both.

The surface of the primer layer may be subjected to a corona discharge treatment. By performing corona discharge treatment,
The adhesive strength between the TPO layer and the polyurethane layer can be further improved. At this time, the surface wetting index of the primer layer (a value measured by a method according to JIS K-6768) is not particularly limited, but the value is 350 μm.
It is preferable to be N / cm or more.

When applying the primer, a solvent is generally used, but usable solvents include aromatic hydrocarbons such as benzene, toluene and xylene, trichloroethylene, tetrachloroethylene, methylchloroform and the like. Halogenated hydrocarbons, alicyclic hydrocarbons such as cyclohexane, methylcyclohexane and ethylcyclohexane, aliphatic hydrocarbons such as n-hexane and n-heptane, ketones such as acetone and methyl ethyl ketone, ethyl acetate and acetic acid Esters such as butyl, ethers such as ethyl ether and diphenyl ether, and alcohols such as ethanol and isopropanol can be used.

Further, the polyurethane constituting the polyurethane layer is preferably formed of a reactive urethane primer layer and a thermoplastic polyurethane layer. Here, the reactive urethane primer refers to a mixture of a mixture of a polyisocyanate compound and a polyhydroxyl compound, which react to form a polyurethane polymer. Specifically, compounds dissolved in different solvents are mixed, applied with a gravure roll or the like, and dried to obtain a polyurethane polymer.

As the polyisocyanate compound, simple
Double aromatic ring, aliphatic and alicyclic di-, tri-, and tetra-based polyisocyanate compounds are exemplified. On the other hand, examples of the polyhydroxyl compound include polyester polyol (from diol to polyol) and polyether polyol (from diol to polyol).

Further, the polyurethane constituting the thermoplastic polyurethane layer is a polymer of a polycarbonate-based polyol, polyester diol, or polyoxyalkylene ether diol, a polyisocyanate, and a chain extender, which is dissolved in a solvent. What was done can be adopted. As a polycarbonate-based polyol,
A polyalkylene polycarbonate-based polyol, a mixture partially substituted with a polyoxyalkylene-modified polycarbonate, or the like can be used.

As the polyester diol, for example, adipate having a diol, a caprolactone derivative, carbonate and the like can be used. As the polyoxyalkylene ether diol, for example, polytetramethylene glycol, polypropylene glycol, polyethylene-propylene glycol, polypropylene-ethylene glycol and the like can be employed.

Examples of the chain extender include alkyl diols such as 1,4-butanediol and 1,6-hexanediol.
Primary or secondary aliphatic diamines can be employed. As the solvent, various solvents capable of dissolving the polyurethane elastomer can be used. For example, N, N-dimethylformamide (DMF), methyl ethyl ketone (M
EK), ethyl acetate and the like.

The polyurethane constituting the polyurethane layer may be an acrylic-urethane resin. As the acrylic-urethane resin, a resin obtained by dissolving a polymer of acrylic polyol and polyisocyanate in a solvent can be used. Here, the polyurethane layer preferably has a thickness of 1 to 300 μm, a rubber hardness of 50 ° or more in JIS-A display and / or a flexibility of 1
It is preferable that the modulus is 00 MPa or more and 1 MPa or more. More preferably, the thickness is 3 to 100 μm and the rubber hardness is 55 to 10
0 ° and / or flexibility is 2 to 30 MPa or more.

Further, a polyurethane elastomer may be used for the polyurethane layer. Further, the polyurethane layer may have a multilayer structure as required. Specifically, for example, a structure according to the application is adopted, such as a structure in which a surface layer is provided with a layer for improving the touch feeling, a structure in which a lower layer is provided with a layer having strength, or a structure opposite thereto. can do.

Incidentally, a natural organic fine powder may be added to the polyurethane layer. As the natural organic substance fine powder, silk, cellulose, collagen, wool, keratin, hemp, cotton, chitin, chitosan, betaine, eggshell membrane and the like can be adopted. Further, a plurality of these may be used in combination.

The amount of the finely divided natural organic matter is usually 1 to 9
0 wt%, preferably 3 to 60 wt%, particularly preferably 5 to 30 wt%. Natural organic matter fine powder addition amount is 9
If it exceeds 0 wt%, the flexibility of the resin may be impaired. Also, as the average particle size of the natural organic matter fine powder,
The value measured with a laser diffraction / scattering particle size distribution analyzer (LMS-24) manufactured by Seishin Enterprise Co., Ltd. is 300 μm.
m, preferably 1 to 100 μm, more preferably 3 to 30 μm. If it exceeds 300 μm, a good touch may not be obtained.

According to the present invention, the primer layer contains an adhesion promoter comprising a compound having an active hydrogen-containing functional group and / or a compound having an inorganic / organic ratio of 0.5 or more. Therefore, the adhesion between the TPO layer and the polyurethane layer can be improved by interposing the primer layer. That is, the active hydrogen-containing functional group such as a polar group or an amino group of the adhesive strength improver improves the adhesion (compatibility) between the primer layer and the polyurethane layer, and the TPO in the primer layer is compatible with the TPO layer. It is considered that the adhesion is also improved, and as a result, the TPO layer and the polyurethane layer are firmly bonded. This allows
The surface strength of the resin laminate can also be improved.

Further, when a reactive urethane primer is used as a component of the polyurethane layer, the TPO layer and the primer layer are firmly adhered to each other, and the reactive urethane primer layer and the primer layer are firmly adhered to each other. Therefore, the adhesive strength can be further improved. Since the resin laminate of the present invention is made of a material mainly composed of polyolefin, it does not generate chlorine-based harmful gas or the like even during incineration, and has high environmental adaptability.

[0026] Such a resin laminate is prepared by coating a polyurethane layer on a TPO layer formed in advance by molding a TPO raw material to which an adhesion enhancer has been added into a sheet by calendering, T-die molding or the like. Method can be adopted,
For example, a method in which a polyurethane layer is directly applied on a TPO layer using a gravure roll, a comma coater, a doctor knife, an over-roll coater, or the like, or a method in which a polyurethane film (polyurethane layer) is formed on release paper, and then the transfer method is used. It can be manufactured by a method of attaching it on the top.

The leather-like sheet according to the present invention is characterized by including the above-mentioned resin laminate and a base material. Here, the substrate is a cloth (base cloth), and the yarn quality is
Blends of polyester and rayon, soup, polypropylene, polyester, blends of polyester and soup, polypropylene foam non-woven fabric, polyurethane foam non-woven fabric, and the like can be used.

As the structure of the base material, one-side knitting, double-sided knitting, special knitting, twill weaving, plain weaving, Russell knitting, sheet knitting and the like can be adopted. Such a leather-like sheet can be produced, for example, by applying an adhesive on a base material and laminating a resin laminate thereon by T-die extrusion, calendering, or the like.

According to this, since it is a leather-like sheet provided with the above-mentioned resin laminate and the base material, a TPO-based leather-like sheet having high surface strength can be provided. Further, the obtained leather-like sheet has a high surface strength, and thus can be suitably used as an interior material for automobiles. As interior materials for automobiles, for example, leather for seats, leather for door trims, leather for instrument panels, leather for sun visors, leather for ceilings and the like can be used.

[0030]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 shows a resin laminate 1 according to a first embodiment of the present invention. The resin laminate 1 includes a polyolefin-based thermoplastic elastomer layer (hereinafter referred to as a TPO layer) 10, a primer layer 30 laminated on the TPO layer 10, and a polyurethane layer 20 laminated on the primer layer 30. And

Here, for the primer layer 30, a mixture of an amine compound having an amino group which is an active hydrogen-containing functional group as an adhesion promoter, TPO, and toluene is applied to the surface of the TPO layer 10. The wettability index of the surface of the primer layer 30 is:
It is set to 350 μN / cm or more by corona discharge treatment. The amine compound was added in the primer layer in an amount of 0.00%.
1 to 50% by weight. In addition, polyurethane layer 2
No. 0 is formed of a layer (hereinafter, referred to as a urethane primer layer) 20B made of a reactive urethane primer and a thermoplastic polyurethane layer 20A laminated thereon.

The resin laminate 1 configured as described above is
It is manufactured as follows. First, calendar processing, T
The TPO raw material is formed into a sheet by die extrusion or the like.
On the PO layer 10, an amine compound, T
After a mixed solution of PO and toluene is applied and dried to form the primer layer 30, the surface thereof is subjected to a corona discharge treatment. Subsequently, a reactive urethane primer is applied with a gravure roll and dried to form a urethane primer layer 20B. Further, a thermoplastic polyurethane layer 20A is applied thereon using a gravure roll and laminated to form a resin laminate 1
Get.

According to the above-described embodiment, the following effects can be obtained. (1) Since TPO is contained in the primer layer 30, the compatibility between the primer layer 30 and the TPO layer 10 is improved, and the adhesion can be strengthened. (2) 0.001 of an amine compound in the primer layer 30
Since it is contained in an amount of about 50% by weight, the adhesive strength with the polyurethane layer 20 laminated on the primer layer 30 can be improved, whereby the adhesive strength of the resin laminate 1 can be increased. That is, the adhesive force (compatibility) with the polyurethane layer 20 is improved by the amino group of the amine compound.

(3) Since the amine compound is contained in the primer layer 30, the effect can be exhibited with a small amount as compared with the case where the amine compound is added to the TPO layer. (4) Since the polyurethane layer 20 is provided on the TPO layer 10, the surface strength of the resin laminate 1 can be improved, and the resin laminate 1 can be used for applications requiring high surface strength. (5) Since a reactive urethane primer is used as a constituent component of the polyurethane layer 20, the primer layer 30 and the urethane primer layer 20B are firmly adhered to each other, and the urethane primer layer and the thermoplastic polyurethane layer 2
Since OA is strongly bonded, the bonding strength can be further improved.

(6) The surface of the primer layer 30 is subjected to a corona discharge treatment to have a surface wetting index of 350 μN / cm or more.
And the adhesive strength with the adhesive can be further improved. (7) Since the resin laminate 1 is composed of a material mainly composed of polyolefin, it does not generate chlorine-based harmful gas even when incinerated, and has high environmental adaptability.

[Second Embodiment] FIG. 2 shows a second embodiment of the present invention.
The leather tone sheet 2 according to the embodiment is shown. The leather-like sheet 2 has the same configuration as that of the first embodiment, except that the base material 50 made of polyester is attached to the surface of the TPO layer 10 of the resin laminate 1 shown in the first embodiment. Therefore, the detailed description is omitted. The leather tone sheet 2 configured as described above can be manufactured by attaching the base material 50 to the resin laminate 1 by calendering.

According to the above-described second embodiment, the following effects can be obtained in addition to the same effects as (1) to (7) of the first embodiment. (8) Since the leather-like sheet 2 includes the resin laminate 1 and the base material 50, the TPO-based leather-like sheet 2 having a high adhesive strength between the TPO layer 10 and the polyurethane layer 20 and a high surface strength. It can be suitably used for furniture such as sofas, automobile seats, and the like.

It should be noted that the present invention is not limited to the above embodiment, and modifications and improvements as long as the object of the present invention can be achieved are included in the present invention. For example, in each of the above embodiments, the resin laminate 1 employs a four-layer structure including the TPO layer 10, the primer layer 30, the urethane primer layer 20B, and the thermoplastic polyurethane layer 20A, but is not limited thereto. . In short, it suffices to have a configuration in which a TPO layer, a primer layer containing a predetermined adhesiveness improving agent, and a polyurethane layer are laminated, and a layer made of another resin may be provided. Further, a structure in which a thermoplastic polyurethane layer is directly laminated on a primer layer without providing a reactive urethane premer layer may be used.

In each of the above embodiments, the amine compound was used as the adhesive strength improver. However, the present invention is not limited to this. Five or more compounds can also be used. Note that a compound having an active hydrogen-containing functional group and a compound having an inorganic / organic ratio of 0.5 or more can be used in combination. And although the amount of the adhesive strength improving agent contained in the primer layer 30 was 0.001 to 50% by weight, it is not limited to this, and can be appropriately changed within a range that does not impair the adhesiveness.

In each of the above embodiments, toluene was used as the solvent. However, the present invention is not limited to this. Other aromatic hydrocarbons, halogenated hydrocarbons, alicyclic hydrocarbons,
Various solvents such as ketones, esters, ethers, and alcohols may be used. The wetting index of the surface of the primer layer 30 is 350 due to the corona discharge treatment.
μN / cm or more, but not limited thereto, as long as the adhesive strength with the primer layer 30 can be maintained.
It can be any value. The surface of the primer layer may not be subjected to the corona discharge treatment.

In the first embodiment, the method of applying the thermoplastic polyurethane layer 20A using a gravure roll is employed, but the present invention is not limited to this. That is, various devices and methods capable of laminating a polyurethane layer can be employed.For example, doctor knife, application by a coater such as an over-roll coater, or a polyurethane film formed on release paper in advance, followed by a transfer method A lamination method or the like may be employed.

Although the primer layer 30 is applied by a bar coater, the present invention is not limited to this, and another coater such as a doctor knife, a gravure roll, or an offset coater may be employed. Further, the reactive urethane primer layer 20B is applied with a gravure roll, but is not limited to this, and another coater such as a doctor knife or an offset coater may be employed.

In the second embodiment, as the substrate 50,
Although polyester is used, the invention is not limited to this, and a blend of polyester and rayon, a blend of polypropylene, a blend of polyester and fabric, a polypropylene foam nonwoven fabric, a polyurethane foam nonwoven fabric, or the like may be used. In addition, the specific structure, shape, and the like at the time of carrying out the present invention may be other structures and the like as long as the object of the present invention can be achieved.

[0044]

The present invention will now be described more specifically with reference to examples and comparative examples. [Example 1] 10 parts by weight of process oil (PW90, Idemitsu Kosan Co., Ltd.) and polyolefin-based thermoplastic elastomer (E2640, manufactured by Idemitsu Petrochemical Co., Ltd.) 1
00 parts by weight are sufficiently mixed with a two-inch three-roll roll set at a roll temperature of 160 ° C., and a 0.5 mm thick TPO
A sheet (TPO layer 10) was obtained.

The above TPO (E) was added to the obtained TPO sheet.
2640) 5 parts by weight, polyamidoamine (Sunmide 305, manufactured by Sanwa Chemical Industry Co., Ltd.) as an adhesion promoter
A primer in which 0.5 part by weight and 100 parts by weight of xylene are mixed and a sufficient adhesion promoter is dispersed is applied by a bar coater and dried at 110 ° C. to form a primer layer 30 having a thickness of about 5 μm. did.

Subsequently, the surface of the primer layer 30 was subjected to a corona discharge treatment at an output of 0.3 kW, a table speed of 6.2 m / min, and two reciprocating treatments. The surface wettability index of the TPO sheet after the corona discharge treatment is 390 μN / cm (5
5 dyn / cm converted to SI units). The wetting index is a value measured by a method based on JIS K-6768.

After the corona discharge treatment, polycarbonate urethane (having the terminal OH group by reacting Duracarb 140 with hexamethylene diisocyanate) dissolved in a mixed solvent of DMF / MEK and hexamethylene diisocyanate dissolved in MEK The reactive urethane primer solution mixed with the above was applied to the above-mentioned primer layer 30 with a gravure roll, and dried at 100 ° C. for 30 seconds to form a urethane primer layer 20B having a thickness of about 5 μm.

Further, 100 parts by weight of a polyurethane elastomer (Resamine ME44, manufactured by Dainichi Seika Co., Ltd.) which is a thermoplastic polyurethane, 30 parts by weight of DMF,
A solution consisting of 30 parts by weight of K was applied onto the urethane primer layer 20B with a gravure roll and dried at 100 ° C. for 30 seconds to form a thermoplastic polyurethane layer 20A having a thickness of 15 μm. Obtained.

Example 2 Polyoxypropylene diamine (Jeffamine D-2000,
Resin laminate 1 was obtained in the same manner as in Example 1 except that 0.3 parts by weight of Sun Techno Chemical Co., Ltd.) was used.

Example 3 Diaminodicyclohexylmethane (Wandamine, Shin Nippon Science Co., Ltd.)
Resin laminate 1 was obtained in the same manner as in Example 1 except for using 1.0 part by weight of Co., Ltd.).

Example 4 As an adhesive strength improver, 3,9
-Bis (3-aminopropyl) 2,4,8,10-tetraoxaspiro (5,5) undecane (epomate 8.
002, manufactured by Yuka Shell Epoxy Co., Ltd.), and a resin laminate 1 was obtained in the same manner as in Example 1 except that 1.0 part by weight was used.

Example 5 A resin was prepared in the same manner as in Example 1 except that 0.5 part by weight of an aliphatic cyclic polyamine (Gaskamin 328, manufactured by Mitsubishi Gas Chemical Co., Ltd.) was used as an adhesion enhancer. The laminate 1 was obtained.

Example 6 As a hindered amine light stabilizer (Tinuvin 622LD, manufactured by Ciba Specialty Chemicals Co., Ltd.), an inorganic / organic ratio of 0.
A resin laminate 1 was obtained in the same manner as in Example 1 except that 10 parts by weight of (69) was used.

Comparative Example A resin laminate was obtained in the same manner as in Example 1 except that no adhesive strength improving agent was used.

The adhesive strength between the TPO layer and the urethane layer in the resin laminates obtained in each of the above Examples and Comparative Examples was measured, and the results are summarized in Table 1. The adhesive strength was measured at room temperature by peeling off the TPO layer and the polyurethane layer at a pulling speed of 200 mm / min.

[0056]

[Table 1]

As shown in Table 1, the resin laminate obtained in each of Examples 1 to 6 has a TPO layer, a primer layer containing an adhesion promoter, and a polyurethane layer. It can be seen that the adhesive strength of each layer is high. on the other hand,
In the comparative example, the adhesive strength was low because no adhesive strength improver was added to the primer layer.

[0058]

According to the present invention, the primer layer comprises a compound having an active hydrogen-containing functional group and / or an inorganic / hydrogen-containing functional group.
Because it contains an adhesion enhancer composed of a compound having an organic ratio of 0.5 or more, by interposing this primer layer,
The adhesion between the TPO layer and the polyurethane layer can be improved. That is, the active hydrogen-containing functional group such as a polar group or an amino group of the adhesive strength improver improves the adhesion (compatibility) between the primer layer and the polyurethane layer, and the TPO in the primer layer is compatible with the TPO layer. It is considered that the adhesion is also improved, and as a result, the TPO layer and the polyurethane layer are firmly bonded. Thereby, the surface strength of the resin laminate can also be improved.

Further, when a reactive urethane primer is used as a component of the polyurethane layer, the TPO layer and the primer layer are firmly adhered to each other, and the reactive urethane primer layer and the primer layer are firmly adhered to each other. Therefore, the adhesive strength can be further improved. Since the resin laminate of the present invention is made of a material mainly composed of polyolefin, it does not generate chlorine-based harmful gas or the like even during incineration, and has high environmental adaptability.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view illustrating a resin laminate according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view illustrating a leather-like sheet according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin laminated body 2 Leather tone sheet 10 Polyolefin thermoplastic elastomer layer 20 Polyurethane layer 20A Thermoplastic polyurethane layer 20B Reactive urethane primer layer 30 Primer layer 50 Base material

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 4F055 AA01 AA18 AA21 BA13 EA02 EA04 EA07 EA24 FA05 FA17 FA20 GA34 4F100 AH03B AK03A AK03B AK51C AL09A AL09B AT00D BA03 BA04 BA10A BA10C BA10D J13 J05BJB JB EJB JB JB JB EJ

Claims (6)

[Claims] 1. A resin laminate comprising a polyolefin-based thermoplastic elastomer layer, a primer layer laminated on the polyolefin-based thermoplastic elastomer layer, and a polyurethane layer laminated on the primer layer, wherein the primer layer Is formed from a polyolefin-based thermoplastic elastomer containing an adhesion enhancer, wherein the adhesion enhancer is a compound having an active hydrogen-containing functional group and / or a compound having an inorganic / organic ratio of 0.5 or more. A resin laminate characterized by the above-mentioned. 2. The resin laminate according to claim 1, wherein said active hydrogen-containing functional group is an amino group. 3. The resin laminate according to claim 1, wherein the compound having an inorganic / organic ratio of 0.5 or more is a heat stabilizer and / or a light stabilizer. body. 4. The resin laminate according to claim 1, wherein the content of the adhesion enhancer in the primer layer is 0.0
Resin laminate characterized in that the content is from 0.01 to 50% by weight. 5. The resin laminate according to claim 1, wherein the polyurethane layer comprises a reactive urethane primer layer and a thermoplastic polyurethane layer. 6. A leather sheet comprising the resin laminate according to any one of claims 1 to 5 and a base material.