JP2018065930A - Adhesive laminate and flow passage structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive laminate and a flow passage structure capable of forming a flow passage having any shape between outer plates and manufacturing an adhesive laminate high in durability.SOLUTION: There is provided an adhesive laminate 6 which is manufactured by laminating a heat fusion adhesive first surface layer 1, a substrate layer 3 and a heat fusion adhesive second surface layer 2 in this order and adhering them, and has a surface layer flow passages 1 and 2 through which a fluid can distribute by penetrating at least one of the heat fusion adhesive first surface layer and second layer 1 and 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an adhesive laminate and a flow channel structure.

In some cases, it is necessary to supply or discharge a fluid such as gas or liquid in a machine or device, and a structure having a flow path for supplying the fluid is required.
As a structure for supplying a fluid, a structure in which a channel is formed between a pair of substrates is known (see, for example, Patent Document 1). This type of structure is required to be able to form a flow path having an arbitrary shape in accordance with the target device. Further, depending on the type and application of the machine or device, the structure supplying the fluid is required to have high adhesion and high durability.

JP 2008-188869 A

  One aspect of the present invention has been made in view of the above-described situation, and two outer layer plates can be bonded and bonded together, and a channel having an arbitrary shape can be formed between the outer layer plates. An object of the present invention is to provide a highly durable and adhesive laminate and flow path structure.

According to one embodiment of the present invention, a first surface layer having a heat-sealing adhesive property, a base material layer, and a second surface layer having a heat-sealing adhesive property are laminated and adhered in this order. An adhesive laminate is provided in which at least one of the second surface layers has a surface layer flow path through which fluid can flow in the thickness direction.
The first and second surface layers are preferably hot melt adhesive layers that are solid at room temperature.
The adhesive laminate according to claim 2, wherein the hot-melt adhesive layer contains a polyolefin.
The base material layer preferably has a melting point higher than the curing start temperature or softening point of the surface layer.
It is preferable that an undercoat layer is further provided at least between the first surface layer and the base material layer and between the second surface layer and the base material layer.
It is preferable that an intermediate flow path that allows the fluid to flow and communicates with the surface layer flow path is formed in the base material layer.
The adhesive laminate according to claim 6, wherein the surface layer flow path is formed in both the first and second surface layers.
The surface layer flow path preferably has a branched structure.

One aspect of the present invention is the adhesive laminate, the first outer layer plate laminated on the outer surface of the first surface layer, and the second outer layer plate laminated on the outer surface of the second surface layer. A flow path structure having the above is provided.
The first and second outer layer plates are preferably metal plates, glass plates, or plastic plates.
It is preferable that at least one of the first and second outer layer plates is formed with a flow hole communicating with the surface layer channel.

According to one embodiment of the present invention, two outer layer plates can be bonded and bonded together. Moreover, since the adhesive surface layer in which the flow path is formed is used, a thin flow path having an arbitrary shape can be formed between the outer layer plates. Since the channel is formed in the surface layer, a channel having a stable shape can be formed, and thus a channel having a sufficient cross-sectional area can be formed.
Further, since the base material layer and the outer layer plate are bonded by the adhesive surface layer, a flow path structure having high mechanical strength and excellent durability can be obtained.
According to one embodiment of the present invention, an adhesive layer for adhering the surface layer to the base material layer and the outer layer plate is not necessary, so that the structure is simple and the flow channel structure can be easily manufactured. In addition, since there is no need to use an adhesive layer (adhesive), a fluid adhesive such as liquid does not enter the flow path and the flow path is not blocked.
According to one embodiment of the present invention, since the base material layer is provided between the surface layers, the shape stability of the flow path can be improved. Therefore, durability can be improved. In addition, a sufficient volume of distribution space can be secured.
Since the flow path has a small area facing the outer layer plate, even when the outer layer plate is made of metal, the area where the fluid contacts the metal is reduced. Therefore, even when the fluid contains water, problems such as retention of water due to metal wettability and blockage of the flow path due to freezing of the accumulated water are unlikely to occur.

It is a disassembled perspective view which shows schematic structure of the flow-path structure of 1st Embodiment. It is a perspective view which shows the flow-path structure of FIG. It is sectional drawing which shows the flow-path structure of FIG. It is a figure explaining an example of the method of manufacturing the flow-path structure of the flow-path structure of FIG. It is a disassembled perspective view which shows schematic structure of the flow-path structure of 2nd Embodiment. It is sectional drawing which shows the flow-path structure of FIG. It is a disassembled perspective view which shows schematic structure of the flow-path structure of 3rd Embodiment. It is sectional drawing which shows the flow-path structure of FIG. It is a disassembled perspective view which shows schematic structure of the flow-path structure of 4th Embodiment. It is sectional drawing which shows the flow-path structure of FIG. It is sectional drawing which shows the modification of the flow-path structure of FIG.

Embodiments of the adhesive laminate and the channel structure of the present invention will be described.
In addition, although this Embodiment demonstrates the meaning of invention more concretely, unless there is particular designation | designated, this invention is not limited.

[Adhesive Laminate and Channel Structure] (First Embodiment)
FIG. 1 is an exploded perspective view showing a schematic configuration of a flow channel structure 10 of the first embodiment. FIG. 2 is a perspective view showing the flow path structure 10. 3 is a cross-sectional view showing the flow path structure 10, and is a cross-sectional view taken along the line II ′ of FIG.
As shown in FIGS. 1 to 3, the flow path structure 10 includes an adhesive laminate 6 and outer layer plates 4 and 5 provided on both surfaces thereof.
The adhesive laminate 6 includes a first surface layer 1, a base material layer 3, and a second surface layer 2 that are laminated and adhered in this order. That is, the flow path structure 10 has a five-layer structure in which the first outer layer plate 4 / first surface layer 1 / base material layer 3 / second surface layer 2 / second outer layer plate 5 are laminated in this order. .

The first surface layer 1 and the second surface layer 2 have heat-sealing adhesiveness. The surface layers 1 and 2 are preferably hot-melt adhesive layers that are solid at room temperature. The surface layers 1 and 2 are made of, for example, a composition containing polyolefin. Examples of the composition containing polyolefin include a composition having an acid-modified polyolefin resin and an epoxy group-containing resin, or a composition having an acid-modified polyolefin resin and an oxazoline group-containing resin.
The surface layers 1 and 2 are, for example, a composition having an acid-modified polyolefin resin and an epoxy group-containing polyolefin resin (first adhesive resin composition), and a composition having an acid-modified polyolefin resin and a phenol novolac epoxy resin. It is preferable to consist of a thing (2nd adhesive resin composition) or a composition (3rd adhesive resin composition) which has acid-modified polyolefin resin and an oxazoline group containing styrene resin.

[First Adhesive Resin Composition]
The first adhesive resin composition comprises 80 to 99.9 parts by mass of the acid-modified polyolefin resin (A), a main chain obtained by copolymerizing an olefin compound and an epoxy group-containing vinyl monomer, and It contains 0.1 to 20 parts by mass of an epoxy group-containing polyolefin resin (B) having a side chain bonded to the main chain and a melting point of 80 to 120 ° C.
Hereinafter, the acid-modified polyolefin resin (A) may be referred to as “(A) component”, and the epoxy group-containing polyolefin resin (B) may be referred to as “(B) component”.

(Acid-modified polyolefin resin (A))
In the first adhesive resin composition, the acid-modified polyolefin resin (A) is a polyolefin resin modified with an unsaturated carboxylic acid or a derivative thereof, and a carboxyl group or a carboxylic anhydride is contained in the polyolefin resin. It has an acid functional group such as a group.
The component (A) can be obtained by modifying a polyolefin resin with an unsaturated carboxylic acid or a derivative thereof, or copolymerizing an acid functional group-containing monomer and an olefin. Among these, as (A) component, what was obtained by acid-modifying polyolefin resin is preferable.
Examples of the acid modification method include graft modification in which a polyolefin resin and an acid functional group-containing monomer are melt-kneaded in the presence of a radical polymerization initiator such as an organic peroxide or an aliphatic azo compound.

Examples of the polyolefin resin include polyethylene, polypropylene, poly-1-butene, polyisobutylene, a random copolymer of propylene and ethylene or α-olefin, and a block copolymer of propylene and ethylene or α-olefin. It is done.
Among these, homopolypropylene (propylene homopolymer; hereinafter may be referred to as “homo PP”), propylene-ethylene block copolymer (hereinafter also referred to as “block PP”), propylene. -Polypropylene resins such as a random copolymer of ethylene (hereinafter sometimes referred to as "random PP") are preferred, and random PP is particularly preferred.
Examples of the olefins for copolymerization include olefinic monomers such as ethylene, propylene, 1-butene, isobutylene, 1-hexene, and α-olefin.

The acid functional group-containing monomer is a compound having an ethylenic double bond and a carboxy group or a carboxylic anhydride group in the same molecule, and various unsaturated monocarboxylic acids, dicarboxylic acids, or dicarboxylic acid acids. Anhydrides are mentioned.
Acid functional group-containing monomers having carboxy groups (carboxy group-containing monomers) include acrylic acid, methacrylic acid, maleic acid, nadic acid, fumaric acid, itaconic acid, citraconic acid, crotonic acid, isocrotonic acid, tetrahydrophthalic acid, endo -Α, β-unsaturated carboxylic acid monomers such as bicyclo [2.2.1] -5-heptene-2,3-dicarboxylic acid (endic acid).
Examples of the acid functional group-containing monomer having a carboxylic anhydride group (carboxylic anhydride group-containing monomer) include unsaturated dicarboxylic acids such as maleic anhydride, nadic anhydride, itaconic anhydride, citraconic anhydride, and endic anhydride An anhydride monomer is mentioned.
These acid functional group-containing monomers may be used alone or in combination of two or more in the component (A).

Among these, the acid functional group-containing monomer is preferably an acid functional group-containing monomer having an acid anhydride group, and more preferably a carboxylic acid anhydride group-containing monomer because of its high reactivity with the component (B) described later. Maleic anhydride is particularly preferred.
When a part of the acid functional group-containing monomer used for acid modification is unreacted, the unreacted acid functional group-containing monomer was removed in advance in order to prevent a decrease in adhesive strength due to the unreacted acid functional group-containing monomer. It is preferable to use those as the component (A).

  (A) In a component, it is preferable that the component derived from polyolefin resin or olefins is 50 mass parts or more with respect to 100 mass parts of the whole quantity of (A) component.

The melting point of the component (A) is preferably 100 ° C. to 180 ° C. in consideration of the temperature when the component (A) and the component (B) described later are melt-kneaded. By using the component (A) having a melting point in the above range, the component (A) and the component (B) to be described later can be obtained from the melting point of the component (A) even when using ordinary methods and general equipment. Can be melt-kneaded at a sufficiently high temperature.
In addition, when the component (A) is reacted with the component (B) described later using melt kneading, it is preferable that the melting point of the component (B) is lower than that of the component (A). By using the component (A), the degree of freedom in selecting the component (B) can be increased.

  Further, as described above, the melting point of the component (A) is preferably higher than the melting point of the component (B) described later, but the melting point of the component (A) is higher by 10 ° C. than the melting point of the component (B). More preferably, it is more preferably 20 ° C. or higher, and particularly preferably 30 ° C. or higher. When the melting point of the component (A) is sufficiently higher than that of the component (B), the component (B) is melted first when the melt kneading is performed, and the component (A) in the state where the shape of the resin is maintained. As a result of penetrating and reacting uniformly, good durability can be obtained.

  Among these, as component (A), maleic anhydride-modified polypropylene is preferable from the viewpoints of adhesiveness and an appropriate melting point.

(Epoxy group-containing polyolefin resin (B))
In the first adhesive resin composition, the epoxy group-containing polyolefin resin (B) is bonded to the main chain obtained by copolymerizing a monomer containing an olefin compound and an epoxy group-containing vinyl monomer, and the main chain. And have a melting point of 80 ° C to 120 ° C.

-Main chain The main chain of the component (B) is obtained by copolymerizing an olefin compound, an epoxy group-containing vinyl monomer, and other optional monomers used as necessary.
Examples of the olefin compound include olefin monomers such as ethylene, propylene, 1-butene, isobutylene, 1-hexene, and α-olefin.
Examples of the epoxy group-containing vinyl monomer include glycidyl esters such as glycidyl methacrylate (GMA) and glycidyl acrylate, glycidyl ethers such as allyl glycidyl ether, and epoxy alkenes such as epoxy butene.
As an olefin compound and an epoxy group-containing vinyl monomer, one kind may be used alone, or two or more kinds may be used in combination.

The main chain of the component (B) may contain one or more other monomers in addition to the olefin compound and the epoxy group-containing vinyl monomer. Other monomers are not particularly limited as long as they are copolymerizable with olefin compounds and epoxy group-containing vinyl monomers. For example, (meth) acrylate monomers, (meth) acrylic ester monomers, (meth) acrylamide monomers, styrene And monomers.
In the copolymer serving as the main chain of the component (B), the constituent ratio of each monomer (compound) is not particularly limited, but is 10% by mass to 30% by mass with respect to all monomers constituting the main chain of the component (B). %, More preferably a copolymer obtained by copolymerizing 10% by mass to 20% by mass of an epoxy group-containing vinyl monomer. By using an epoxy group-containing vinyl monomer within the above range, it is possible to suitably improve the adhesion to the adherend.

  Among these, as the main chain of the component (B), a copolymer obtained by copolymerizing an olefin compound and an epoxy group-containing vinyl monomer is preferable, and a copolymer of ethylene and glycidyl methacrylate is particularly preferable.

-Side chain (B) component can improve the characteristics, such as intensity | strength, adhesiveness, a synthesis | combination, of an olefin type copolymer, by having the side chain couple | bonded with the said principal chain. The side chain is not particularly limited. Styrenic resin (polymer containing styrene) such as polystyrene and styrene-acrylonitrile copolymer; (meth) methyl acrylate, (meth) ethyl acrylate, (meth) Examples thereof include (meth) acrylic resins obtained by polymerizing one or more alkyl (meth) acrylate monomers such as butyl acrylate and pentyl (meth) acrylate.
Among these, as the side chain of the component (B), a polymer containing styrene is preferable, and examples thereof include polystyrene and a styrene-acrylonitrile copolymer. Among these, polystyrene is particularly preferable.

The component (B) having the main chain and side chain as described above includes, for example, a main chain copolymer obtained by a conventional method, a monomer constituting the side chain, an organic peroxide, an aliphatic azo compound, etc. Can be obtained by graft polymerization using a radical polymerization initiator.
(B) Melting | fusing point of a component is 80 to 120 degreeC, Comprising: It is preferable that it is 90 to 110 degreeC. (B) component which has such melting | fusing point can be obtained by selecting suitably the monomer seed | species which comprises a principal chain and a side chain.
By using the component (B) having the melting point in the above range, the component (A) and the component (A) can be used at a temperature sufficiently higher than the melting point of the component (B) even when using a conventional method and a general apparatus. The component (B) can be melt-kneaded, and an adhesive or adhesive layer having excellent durability can be obtained. Moreover, when making said (A) component and (B) component react using melt-kneading, it is preferable that melting | fusing point of (B) component is low compared with (A) component, but it has melting | fusing point of the said range. By using the component (B), the degree of freedom in selecting the component (A) can be increased.

  As such component (B), commercially available products such as MODIPER A1100, A4100, and A4400 (all trade names) manufactured by NOF Corporation may be used.

  In the first adhesive resin composition, the component (B) is contained in an amount of 0.1 parts by mass to 20 parts by mass with respect to 80 parts by mass to 99.9 parts by mass of the component (A). More specifically, in the solid content of the first adhesive resin composition, the ratio of the component (A) is preferably 90 parts by mass to 99 parts by mass, and the ratio of the component (B) is 1 part by mass. It is preferable that it is -10 mass parts.

  The first adhesive resin composition can appropriately contain miscible additives, additional resins, plasticizers, stabilizers, colorants and the like as desired.

In the first adhesive resin composition, both the acid functional group of the component (A) and the epoxy group of the component (B) function as an adhesive functional group for the adherend (outer layer plates 4 and 5). Thus, it is considered that excellent adhesion can be achieved to various adherends such as metal, glass and plastic.
In addition, a part of the acid functional group of the component (A) and a part of the epoxy group of the component (B) react to reinforce the dispersion structure of the component (A) and the component (B), which is excellent. It is considered that good durability can be obtained together with adhesiveness.

[Second Adhesive Resin Composition]
The second adhesive resin composition comprises 80 parts by mass to 99.9 parts by mass of the acid-modified polyolefin resin (A) and 0.1 parts by mass to 20 parts by mass of a phenol novolac epoxy resin (C) that is solid at room temperature. Part by mass.
Hereinafter, the acid-modified polyolefin resin (A) may be referred to as “(A) component”, and the phenol novolac type epoxy resin (C) may be referred to as “(C) component”.

(Acid-modified polyolefin resin (A))
In the second adhesive resin composition, the acid-modified polyolefin resin (A) is the same as the acid-modified polyolefin resin (A) in the first adhesive resin composition described above.

(Phenol novolac type epoxy resin (C))
In the second adhesive resin composition, the phenol novolac epoxy resin (C) is a phenol novolac epoxy resin that is solid at room temperature. Even when the component (A) and the component (C) are polymerized by melt kneading by using the component (C) that is solid at room temperature, melt kneading is performed in accordance with the melting temperature of the component (A). And the characteristics of the component (C) are less likely to be impaired.

  In the second adhesive resin composition, the phenol novolac type epoxy resin (C) is a phenol novolac resin obtained by acid condensation of phenol and formaldehyde, and has an epoxy group introduced into a part of the structure. High molecular compound. The amount of epoxy group introduced per molecule in the phenol novolac type epoxy resin is not particularly limited, but by reacting an epoxy group raw material such as epichlorohydrin with a phenol novolac resin, a large number of phenolic hydroxyl groups present in the phenol novolac resin are numerous. Since this epoxy group is introduced, it is usually a polyfunctional epoxy resin.

Among these, as the component (C), a resin having a phenol novolac structure as a basic skeleton and also having a bisphenol A structure is preferable. In addition, the bisphenol A structure in (C) component should just be a structure which can be induced | guided | derived from bisphenol A, and the both-ends hydroxyl group of bisphenol A may be substituted by groups, such as an epoxy group containing group.
(C) As an example of component, resin represented by following General formula (1) is mentioned.

［式（１）中、Ｒ^１〜Ｒ^６はそれぞれ独立に水素原子またはメチル基であり、ｎは０〜１０の整数であり、Ｒ^Ｘはエポキシ基を有する基である。］

In Expression ^(1), R 1 ~R ⁶ are each independently a hydrogen atom or a methyl group, n is an integer of 0, ^{R X} is a group having an epoxy group. ]

In the general formula (1), R ^{1 to} R ⁶ are each independently a hydrogen atom or a methyl group. When n is an integer of 2 or more, R ³ and R ⁴ may be the same or different.
The resin represented by the general formula (1) preferably satisfies at least one of the following (i) to (iii).
(I) both R ¹ and R ² are methyl groups, (ii) both R ³ and R ⁴ are methyl groups, (iii) both R ⁵ and R ⁶ are methyl groups, for example, satisfying (i) above Thus, in the above general formula (1), the carbon atom to which R ¹ and R ² are bonded and the ^two hydroxyphenyl groups to which the carbon atom is bonded form a structure derived from bisphenol A.

In the general formula (1), R ^X is a group having an epoxy group. Examples of the group having an epoxy group include an epoxy group, a combination of an epoxy group and an alkylene group, and among them, a glycidyl group is preferable.

  (C) It is preferable that the epoxy equivalent of a component is 100-300, and it is more preferable that it is 200-300. The epoxy equivalent (g / eq) is the molecular weight of the epoxy resin per epoxy group, and the smaller the value, the more epoxy groups in the resin. By using the component (C) having a relatively small epoxy equivalent, the adhesiveness between the component (C) and the adherend becomes good even when the amount of the component (C) added is relatively small, and The component (C) and the component (A) are sufficiently crosslinked.

  Examples of such component (C) include jER154, jER157S70, jER-157S65 manufactured by Mitsubishi Chemical Corporation; EPICLON N-730A, EPICLON N-740, EPICLON N-770, and EPICLON N-775 (all above) manufactured by DIC. (Commercial name) can also be used.

  In 2nd adhesive resin composition, it is preferable that (C) component is contained by 0.1-20 mass parts with respect to (A) component 80 mass parts-99.9 mass parts, The component (C) is more preferably contained in an amount of 1 to 10 parts by mass with respect to 90 to 99 parts by mass of the component A).

  The second adhesive resin composition can appropriately contain miscible additives, additional resins, plasticizers, stabilizers, colorants and the like as desired.

In the second adhesive resin composition, both the acid functional group of the component (A) and the epoxy group of the component (C) are bonded to an adherend (particularly a functional group such as a hydroxyl group that the adherend has). By functioning as a functional functional group, it is considered that excellent adhesion to various adherends such as metal, glass, and plastic can be achieved.
In addition, a part of the acid functional group of the component (A) and a part of the epoxy group of the component (C) react to form a crosslinked structure of the component (A) and the component (B). It is considered that the strength of the resin is reinforced and good durability is obtained together with excellent adhesiveness.

[Third adhesive resin composition]
The third adhesive resin composition comprises 80 parts by mass to 99.9 parts by mass of the acid-modified polyolefin resin (A) and 0 of the oxazoline group-containing styrene resin (D) having a number average molecular weight of 50,000 to 250,000. .1 part by mass to 20 parts by mass.
Hereinafter, the acid-modified polyolefin resin (A) may be referred to as “(A) component”, and the oxazoline group-containing styrenic resin (D) may be referred to as “(D) component”.

(Acid-modified polyolefin resin (A))
In the third adhesive resin composition, the acid-modified polyolefin resin (A) is the same as the acid-modified polyolefin resin (A) in the first adhesive resin composition described above.

(Oxazoline group-containing styrene resin (D))
In the third adhesive resin composition, the oxazoline group-containing styrene resin (D) is an oxazoline group-containing styrene resin having a number average molecular weight of 30,000 to 250,000. When component (D) has an oxazoline group, the oxazoline group of component (D) reacts with the acid functional group (for example, carboxy group, carboxylic acid group, etc.) of component (A) to form a crosslinked structure. Is done. For example, when the acid functional group of the component (A) is a carboxy group, a crosslinking reaction as shown by the following formula (2) occurs, and an amide ester bond is formed. As a result, the (D) component reinforces the (A) component which is the main resin, and it is considered that the (A) component is further cross-linked, and good durability is obtained along with excellent adhesiveness.

Among these, as the component (D), a resin obtained by copolymerizing a styrene monomer and an oxazoline group-containing monomer is preferable.
As the styrene monomer, styrene and its derivatives can be used. Specifically, alkyl styrene such as styrene, α-methyl styrene, methyl styrene, dimethyl styrene, trimethyl styrene, ethyl styrene, diethyl styrene, triethyl styrene, propyl styrene, butyl styrene, hexyl styrene, heptyl styrene, octyl styrene; chloro; Examples thereof include halogenated styrene such as styrene, fluorostyrene, bromostyrene, dibromostyrene, and iodostyrene. Among these, styrene is preferable.

The oxazoline group-containing monomer is not particularly limited as long as it contains an oxazoline group and can be copolymerized with a styrene monomer, but a monomer having an oxazoline group and a vinyl group can be preferably used. .
Examples of the oxazoline group-containing vinyl monomer include 2-vinyl-2-oxazoline, 5-methyl-2-vinyl-2-oxazoline, 4,4-dimethyl-2-vinyl-2-oxazoline, and 2-isopropenyl-2-oxazoline. 4,4-dimethyl-2-isopropenyl-2-oxazoline, 4-acryloyl-oxymethyl-2,4-dimethyl-2-oxazoline, 4-methacryloyloxymethyl-2,4-dimethyl-2-oxazoline, 4, -Methacryloyloxymethyl-2-phenyl-4-methyl-2-oxazoline, 2- (4-vinylphenyl) -4,4-dimethyl-2-oxazoline, 4-ethyl-4-hydroxymethyl-2-isopropenyl- 2-oxazoline, 4-ethyl-4-carboethoxymethyl-2-isopropenyl-2- Kisazorin, and the like. Among these, 2-isopropenyl-2-oxazoline is preferable.

As the styrene monomer and the oxazoline group-containing monomer, one kind may be used alone, or two or more kinds may be used in combination.
Moreover, (D) component may contain 1 or more types of the other monomer other than a styrene-type monomer and an oxazoline group containing monomer. Other monomers are not particularly limited as long as they are copolymerizable with these monomers, and examples include (meth) acrylate monomers, (meth) acrylic ester monomers, (meth) acrylamide monomers, and the like.
In the component (D), the constituent ratio of each monomer is not particularly limited, but it is 5% by mass to 50% by mass, more preferably 10% by mass to 30% by mass with respect to the total monomers constituting the component (D). A resin obtained by copolymerizing a group-containing monomer is preferred. By using the oxazoline group-containing monomer within the above range, the component (A) and the component (D) can be sufficiently cross-linked and good durability can be obtained.

  The number average molecular weight of the component (D) is 50,000 to 250,000, preferably 60,000 to 100,000, and more preferably 60,000 to 80,000. By using the component (D) having a number average molecular weight within the above range, the compatibility between the component (A) and the component (D) is improved, and the component (A) and the component (D) are sufficiently crosslinked. Is possible.

  As such component (D), commercially available products such as EPOCROS RPS-1005 (trade name) manufactured by Nippon Shokubai Co., Ltd. can be used.

  In 3rd adhesive resin composition, (D) component is contained by 0.1-20 mass parts with respect to (A) component 80 mass parts-99.9 mass parts. Especially, it is preferable that 1 mass part-10 mass parts of (D) component are contained with respect to 95 mass parts -99 mass parts of (A) component.

  In the third adhesive resin composition, since the acid functional group of the component (A) and the oxazoline group of the component (D) easily react by heating, a curing agent that can react with these other functional groups. However, it is possible to appropriately contain miscible additives, additional resins, plasticizers, stabilizers, colorants and the like as required.

  In the third adhesive resin composition, the acid functional group of the component (A) functions as an adhesive functional group for the adherend, so that various adherends (outer layer plate 4) such as metal, glass, and plastic are used. , 5), it is considered that excellent adhesion can be achieved. In addition, a part of the acid functional group of the component (A) and a part of the oxazoline group of the component (D) react with each other to reinforce the component (A) that becomes the main resin, thereby cross-linking the component (A). Is considered to be stronger, and good durability can be obtained together with excellent adhesiveness. The oxazoline group also functions as an adhesive functional group when the adherend has a carboxyl group.

  The thickness of each of the first surface layer 1 and the second surface layer 2 is preferably 5 μm to 100 μm, more preferably 10 μm to 50 μm, and even more preferably 10 μm to 30 μm.

  The resin constituting the first surface layer 1 and the resin constituting the second surface layer 2 are the same as long as the first surface layer 1 and the second surface layer 2 satisfy the above-described adhesiveness. May be different.

As a material which comprises the base material layer 3, resin which has heat resistance is preferable, and resin with high creep resistance is especially preferable. For example, polyester resins such as polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polybutylene terephthalate (PBT); polyolefin polymers such as cyclic olefin polymer (COP) and methylpentene polymer (TPX); polyamide resins; polyimide resins, etc. The synthetic resin film which consists of these is mentioned.
Among these, those having a low linear expansion coefficient are preferable. By using a resin having a low coefficient of linear expansion, when the laminated body is heated or cooled, the shrinkage of the laminated body is reduced, and the distortion of the laminated body containing metal is reduced.
As resin used for the base material layer 3, PEN and COP are preferable.

The base material layer 3 can contain a particulate or fibrous filler as an additive. The filler should just be a filler with high heat resistance, and an organic filler and an inorganic filler are mentioned. By containing a filler, shrinkage of the adhesive laminate 6 can be further suppressed, and the strength of the adhesive laminate 6 itself can be increased. In this invention, it is preferable to add with an inorganic filler from a heat resistant and shrinkable viewpoint of a base material layer.
Examples of inorganic fillers include carbonates such as calcium carbonate, magnesium carbonate and barium carbonate, sulfates such as calcium sulfate, magnesium sulfate and barium sulfate, chlorides such as sodium chloride, calcium chloride and magnesium chloride, aluminum oxide, calcium oxide, Examples thereof include oxides such as magnesium oxide, zinc oxide, titanium oxide and silica, minerals such as talc, smectite, mica and kaolinite, carbon compounds such as carbon fibers and carbon particles, and fine particles made of glass. Further, examples of the shape include a spherical shape, a rod shape, and a plate shape, and a plate-like compound is preferable.

The base material layer 3 preferably has a melting point higher than the curing start temperature or softening point of the first surface layer 1 or the second surface layer 2. Thereby, the base material layer 3 is prevented from being softened during heating, and a sufficiently thick distribution space 20 can be secured between the outer layer plates 4 and 5.
The thickness of the base material layer 3 is preferably 25 μm to 250 μm, more preferably 40 μm to 200 μm, and still more preferably 70 μm to 190 μm.

The first outer layer plate 4 is laminated on the outer surface 1 a of the first surface layer 1. The second outer layer plate 5 is laminated on the outer surface 2 a of the second surface layer 2.
The outer layer plates 4 and 5 are made of metal, glass, plastic, or the like. The metal constituting the outer layer plates 4 and 5 may be, for example, iron, copper, aluminum, lead, zinc, titanium, or chromium, or may be stainless steel that is an alloy, including metal plating or metal. It may be a metal or non-metal that has been surface-treated by coating with a paint. Particularly preferably, it is a metal flat plate made of iron, aluminum, titanium, stainless steel, or surface-treated metal, and can realize a strong adhesive strength to the surface layers 1 and 2.
As the plastic plate, a synthetic resin plate made of polyester resin, polyolefin resin, polyamide resin, polyimide resin or the like is preferable.
The thicknesses of the outer layer plates 4 and 5 are each preferably 50 μm to 5 mm, and more preferably 0.5 mm to 2 mm.

In the following description, an XYZ orthogonal coordinate system may be adopted. In FIG. 1, the X direction is a direction along one side of the rectangular surface layers 1 and 2 and the base material layer 3. The Y direction is a direction orthogonal to the X direction in the plane along the surface layers 1 and 2 and the base material layer 3. The Z direction is a direction orthogonal to the X direction and the Y direction, and is the thickness direction of the surface layers 1 and 2 and the base material layer 3. The plan view means viewing from the thickness direction (Z direction) of the surface layers 1 and 2 and the base material layer 3.
One direction (right direction) in the X direction in FIG. 1 is referred to as a + X direction, and the opposite direction is referred to as a −X direction. One direction (depth direction) in the Y direction is referred to as + Y direction, and the opposite direction is referred to as -Y direction. One direction (upward direction) in the Z direction is referred to as + Z direction, and the opposite direction is referred to as -Z direction.

  As shown in FIG. 1, the first surface layer 1 is formed with a first surface layer channel 11 through which a fluid can flow. The surface layer channel 11 is formed so as to penetrate the first surface layer 1 in the thickness direction. The surface layer channel 11 has a rectangular main part 14 in a plan view and a direction away from the main part 14 (-X direction) starting from one side part 14a of the main part 14 (a side part on the -X direction side). And an extending portion 15 extending to the surface.

An intermediate flow path 13 through which a fluid can flow is formed in the base material layer 3. The intermediate flow path 13 is rectangular in plan view, and is formed so as to penetrate the base material layer 3 in the thickness direction.
The intermediate flow path 13 communicates with the first surface layer flow path 11 because the position in plan view overlaps with the main portion 14 of the surface layer flow path 11 of the first surface layer 1.

The second surface layer 2 is formed with a second surface layer channel 12 through which fluid can flow. The surface layer channel 12 is formed so as to penetrate the second surface layer 2 in the thickness direction. The surface layer flow path 12 extends in a direction away from the main portion 16 (+ X direction) starting from the rectangular main portion 16 and the other side portion 16b (+ X direction side portion) of the main portion 16 in plan view. And an extending portion 17 extending out.
Since the main portion 16 overlaps the intermediate flow path 13 of the base material layer 3 in a plan view, the surface layer flow path 12 communicates with the intermediate flow path 13.

The first outer layer plate 4 is formed with a first flow hole 18 communicating with the extending portion 15 of the surface layer flow path 11 of the first surface layer 1 so as to penetrate in the thickness direction.
The second outer layer plate 5 is formed with a second flow hole 19 communicating with the extending portion 17 of the surface layer flow path 12 of the second surface layer 2 so as to penetrate in the thickness direction.
In the position close to the corners of the first outer layer plate 4, the first surface layer 1, the base material layer 3, the second surface layer 2, and the second outer layer plate 5 shown in FIG. 1b, 3a, 2b, and 5a are open. For example, when the layers shown in FIG. 1 are laminated to form a laminated body (flow channel structure 10) as shown in FIG. 2, these circular through holes serve as positioning holes. Function.

As shown in FIG. 3, the surface layer flow path 11 of the first surface layer 1, the intermediate flow path 13 of the base material layer 3, and the surface layer flow path 12 of the second surface layer 2 are flow path structures. A circulation space 20 is formed inside the body 10.
In the channel structure 10, a fluid (liquid or gas) can be introduced into the circulation space 20 through the first circulation hole 18. The fluid in the circulation space 20 can be led out of the system through the second circulation hole 19.
The fluid may be a gas containing moisture (air, oxygen, hydrogen, etc.).

[Method for producing adhesive laminate and channel structure]
In order to manufacture the adhesive laminate 6 and the flow path structure 10, for example, the following method can be employed.

(Surface layer flow path forming process)
As shown in FIG. 4, the first surface layer sheet 1 </ b> A having heat-bonding adhesiveness is fed out from the first supply roller 101 and conveyed in the length direction toward the lamination roller 104. Similarly, the heat-adhesive second surface layer sheet 2 </ b> A is fed out from the second supply roller 102 and conveyed in the length direction toward the lamination roller 104. In the surface layer sheets 1A and 2A, a sheet-like support 8 (protective sheet) made of PET or the like may be laminated on the outer surface side (the surface opposite to the surface on which the base material layer sheet 3A is laminated). (Refer to (ii) and (v) in FIG. 4), the support 8 may be omitted (see (i) and (iv) in FIG. 4).
The surface layer flow path 11 and the surface layer flow path 12 are formed in the surface layer sheets 1A and 2A, for example, by punching. The surface layer channels 11 and 12 can be formed while the surface layer sheets 1A and 2A are conveyed from the supply rollers 101 and 102 to the lamination roller 104.

(Substrate layer flow path forming step)
The base material layer sheet 3 </ b> A is fed out from the third supply roller 103 and conveyed toward the lamination roller 104 in the length direction. An intermediate flow path 13 communicating with the surface layer flow path 11 and the surface layer flow path 12 is formed in the base material layer sheet 3A, for example, by punching. The formation of the intermediate flow path 13 can be performed while the base material layer sheet 3 </ b> A is conveyed from the third supply roller 103 to the lamination roller 104.

(Lamination bonding process)
In the lamination roller 104, the first surface layer sheet 1A, the base material layer sheet 3A, and the second surface layer sheet 2A are laminated by a pair of rollers 104a and 104a to obtain a laminated body 6A (FIG. 4). (See vii).
The laminating roller 104 can sandwich the sheets 1A, 2A, and 3A with heated rollers 104a and 104a and perform hot pressing in the thickness direction. Thereby, the sheets 1A, 2A, and 3A can be securely bonded.

(Cutting process)
The adhesive laminate 6 is obtained by cutting the laminate 6A into a predetermined size.

(Outer plate adhesion process)
By adhering the outer layer plates 4 and 5 to both surfaces of the adhesive laminate 6, the flow path structure 10 shown in FIGS. 1 to 3 is obtained.

  In the manufacturing method described above, the surface layer flow paths 11 and 12 of the surface layer sheets 1A and 2A are formed before the laminating and bonding step. The part is not attached. Therefore, the cut portions of the surface layer sheets 1A and 2A can be reused as they are as the material of the surface layer sheets 1A and 2A, which is advantageous in terms of cost.

The surface layer channels 11 and 12 may be formed after the lamination bonding step. For example, after the surface layer sheets 1A, 2A and the base material layer sheet 3A in which the surface layer flow paths 11, 12 are not formed are laminated, the flow paths 11-13 may be formed in the laminate. In that case, a flow path is formed in each laminated layer at once. Since the cut portions of the surface layer sheets 1A and 2A and the cut portion of the base layer sheet 3A are integrated, the cut portions can be easily managed. Therefore, it is possible to prevent the cut portion from remaining in the final product.
In addition, you may perform the formation of the flow paths 11-13 before and after a lamination | stacking adhesion | attachment process. For example, a part of the sheets 1A, 2A, and 3A (for example, the surface layer sheets 1A and 2A) is formed by a punching process or the like before the lamination bonding process, and is punched into the laminated body after the lamination bonding process. Etc., the flow path may be formed in another sheet (for example, the base material layer sheet 3A).

The adhesive laminate 6 can be bonded and bonded to the two outer layer plates 4 and 5 by the adhesive surface layers 1 and 2. Further, since the adhesive surface layers 1 and 2 in which the flow paths 11 and 12 are formed are used, the thin flow paths 11 and 12 having an arbitrary shape can be formed between the outer layer plates 4 and 5. it can. Since the flow paths 11 and 12 are formed on the surface layers 1 and 2, since the stable flow paths 11 and 12 can be formed, the flow paths 11 and 12 having a sufficient cross-sectional area can be formed.
Moreover, since the base material layer 3 and the outer layer plates 4 and 5 are bonded by the adhesive surface layers 1 and 2, the flow path structure 10 having high mechanical strength and excellent durability can be obtained.
In the adhesive laminate 6, an adhesive layer for adhering the surface layers 1 and 2 to the base material layer 3 and the outer layer plates 4 and 5 becomes unnecessary, so that the structure is simple and the flow path structure 10 is easy. Can be made. In addition, since there is no need to use an adhesive layer (adhesive), a fluid adhesive such as liquid does not enter the flow path and the flow path is not blocked.
In the adhesive laminated body 6, since the base material layer 3 is provided between the surface layers 1 and 2, the shape stability of the flow paths 11 to 13 can be improved. Therefore, durability can be improved. Further, a sufficient volume of the distribution space 20 can be secured.

The extending portion 15 of the first surface layer flow path 11 is a flow path having both side surfaces made of the surface layer 1 and the bottom face made of the base material layer 3. The extending portion 17 of the surface layer flow path 12 is a flow path having both side surfaces made of the surface layer 2 and the top surface made of the base material layer 3. Since the surface layer flow paths 11 and 12 have a small area facing the outer layer plates 4 and 5, even when the outer layer plates 4 and 5 are made of metal, the area where the fluid touches the metal is reduced.
Therefore, in the adhesive laminate 6, even when the fluid contains water, problems such as retention of water due to metal wettability and blockage of the flow path due to freezing of the accumulated water hardly occur.

  Since the adhesive laminate 6 has the flow paths 11 to 13 formed in the surface layers 1 and 2 and the base material layer 3, it is possible to ensure a sufficiently high distribution space 20. In addition, fluid can be circulated from the one surface side (for example, the upper surface side in FIG. 1) of the flow path structure 10 to the other surface side (for example, the lower surface side in FIG. 1).

  In addition, as shown to (iii) and (vi) of FIG. 4, as for surface layer sheet | seat 1A, 2A, the adhesive bond layer 9 is formed in the inner surface side (surface on which the base material layer sheet | seat 3A is laminated | stacked). Also good. As shown to (viii) of FIG. 4, the obtained laminated body 6B is adhesive between the surface layer sheet 1A and the base material layer sheet 3A, and between the surface layer sheet 2A and the base material layer sheet 3A. The layer 9 is formed.

[Adhesive Laminate and Channel Structure] (Second Embodiment)
FIG. 5 is an exploded perspective view showing a schematic configuration of the flow path structure 30 according to the second embodiment. 6 is a cross-sectional view showing the flow path structure 30, and is a cross-sectional view taken along the line II-II ′ of FIG. In the following description, the same components as those described above may be denoted by the same reference numerals and description thereof may be omitted.

As shown in FIGS. 5 and 6, the flow path structure 30 includes an adhesive laminate 26 and outer layer plates 24 and 25 provided on both surfaces thereof.
In the adhesive laminate 26, the first surface layer 21, the base material layer 23, and the second surface layer 22 are laminated and bonded in this order. That is, the flow path structure 30 has a five-layer structure in which the first outer layer plate 24 / first surface layer 21 / base material layer 23 / second surface layer 22 / second outer layer plate 25 are laminated in this order. .
The constituent materials of the surface layers 21 and 22 and the base material layer 23 may be the same as the constituent materials of the surface layers 1 and 2 and the base material layer 3, respectively. The constituent materials of the first outer layer plate 24 and the second outer layer plate 25 may be the same as the constituent materials of the first outer layer plate 4 and the second outer layer plate 5.

  The first surface layer 21 is formed with a first surface layer channel 31 through which a fluid can flow. The surface layer flow path 31 is formed so as to penetrate the first surface layer 21 in the thickness direction. The surface layer channel 31 has a rectangular main part 34 in a plan view, and a direction away from the main part 34 (-X direction) starting from one side part 34a of the main part 34 (a side part on the -X direction side). An extending portion 35A that extends in the direction from the other side portion 34b (side portion on the + X direction side) of the main portion 34, and an extending portion 35B that extends in a direction away from the main portion 34 (+ X direction) Have

The base material layer 23 is formed with an intermediate flow path 33 through which a fluid can flow. The intermediate flow path 33 is formed through the base material layer 3 in the thickness direction. The intermediate flow path 33 starts from a rectangular main portion 36 and one side portion 36a of the main portion 36 (a side portion on the −X direction side) in a plan view in a direction away from the main portion 36 (−X direction). An extending portion 37A that extends and an extending portion 37B that extends in the direction away from the main portion 36 (+ X direction) starting from the other side portion 36b of the main portion 36 (side portion on the + X direction side). Have.
The intermediate flow path 33 communicates with the first surface layer flow path 31. The planar view positions of the main portion 36 and the extending portions 37A and 37B preferably overlap with the planar view positions of the main portion 34 and the extending portions 35A and 35B of the surface layer flow path 31, respectively.

No flow path is formed in the second surface layer 22.
The first outer layer plate 24 has first and second flow holes 38A, 38B communicating with the extending portions 35A, 35B of the surface layer flow path 31 of the first surface layer 21 penetrating in the thickness direction. Is formed.
No flow holes are formed in the second outer layer plate 25.

The surface layer flow path 31 of the first surface layer 21 and the intermediate flow path 33 of the base material layer 23 form a flow space 40 inside the flow path structure 30.
In the flow channel structure 30, a fluid (liquid or gas) can be introduced into the circulation space 40 through the first circulation hole 38 </ b> A. The fluid in the flow channel structure 30 can be led out of the system through the second flow hole 38B.

The adhesive laminate 26 can adhere and bond the two outer layer plates 24 and 25 with the adhesive surface layers 21 and 22. Further, since the adhesive surface layer 21 and the surface layer 22 in which the flow path 31 is formed are used, the thin flow path 31 having an arbitrary shape can be formed between the outer layer plates 24 and 25. . Since the channels 11 and 12 are formed in the surface layers 1 and 2, the channel 31 having a stable shape can be formed.
Moreover, since the base material layer 23 and the outer layer plates 24 and 25 are bonded by the adhesive surface layers 21 and 22, the adhesive laminate 26 having high mechanical strength and excellent durability can be obtained.
Since the adhesive laminate 26 does not require an adhesive layer, its structure is simple and the flow path structure 30 can be easily manufactured. In addition, since there is no need to use an adhesive layer (adhesive), a fluid adhesive such as liquid does not enter the flow path and the flow path is not blocked.
Since the adhesive laminate 26 includes the base material layer 23, the shape stability of the flow paths 31 and 33 can be improved. Therefore, durability can be improved. Further, a sufficient volume of the distribution space 40 can be secured.

  The flow paths 31 and 33 are flow paths in which both side surfaces are composed of the surface layer 21 and the base material layer 23 and the bottom surface is composed of the surface layer 22. Therefore, even when the outer layer plates 24 and 25 are made of metal, the area where the fluid touches the metal is reduced. Therefore, in the adhesive laminate 26, even when the fluid contains water, problems such as retention of water due to metal wettability and blockage of the flow path due to freezing of the accumulated water hardly occur.

  The adhesive laminate 26 can introduce a fluid into the flow space 40 through the flow hole 38A of one outer layer plate 24 and can be led out of the system through the flow hole 38B of the same outer layer plate 24. The fluid can be circulated on one surface side (for example, the upper surface side in FIG. 5).

[Adhesive Laminate and Channel Structure] (Third Embodiment)
FIG. 7 is an exploded perspective view showing a schematic configuration of the flow channel structure 50 of the third embodiment. FIG. 8 is a cross-sectional view showing the flow path structure 50, and is a cross-sectional view taken along the line III-III ′ of FIG.
As shown in FIGS. 7 and 8, the flow path structure 50 includes an adhesive laminate 46 and outer layer plates 24 and 45 provided on both surfaces thereof.
In the adhesive laminate 46, the first surface layer 21, the base material layer 43, and the second surface layer 42 are laminated and bonded in this order. That is, the flow path structure 50 has a five-layer structure in which the first outer layer plate 24 / first surface layer 21 / base material layer 43 / second surface layer 42 / second outer layer plate 45 are laminated in this order. .
The constituent materials of the surface layers 21 and 42 and the base material layer 43 may be the same as the constituent materials of the surface layers 1 and 2 and the base material layer 3, respectively. The constituent materials of the first outer layer plate 24 and the second outer layer plate 45 may be the same as the constituent materials of the first outer layer plate 4 and the second outer layer plate 5.

A channel is not formed in the base material layer 43.
In the second surface layer 42, two second surface layer channels 52A and 52B are formed. The surface layer channels 52A and 52B are formed so as to penetrate the second surface layer 42 in the thickness direction. The surface layer flow paths 52A and 52B are linear along the X direction, and are formed in parallel at intervals in the Y direction.

The second outer layer plate 45 has flow holes 58A and 58B communicating with the surface layer flow path 52A of the second surface layer 42 and flow holes 59A and 59B communicating with the surface layer flow path 52B in the thickness direction. It is formed to penetrate through.
The flow holes 58A and 58B are formed at intervals in the length direction of the surface layer flow path 52A. The flow holes 58A and 58B are formed at positions communicating with both end portions of the surface layer flow path 52A. The circulation holes 59A and 59B are formed at intervals in the length direction of the surface layer channel 52B. The circulation holes 59A and 59B are formed at positions communicating with both end portions of the surface layer flow path 52B.

The surface layer flow path 31 of the first surface layer 21 forms a flow space 60 </ b> A inside the flow path structure 50.
A fluid (liquid or gas) can be introduced into the circulation space 60A through the first circulation hole 38A. The fluid in the circulation space 60A can be led out of the system through the second circulation hole 38B.
The surface layer flow path 52 </ b> A of the second surface layer 42 forms a circulation space 60 </ b> B inside the flow path structure 50. The surface layer flow path 52 </ b> B forms a flow space 60 </ b> C inside the flow path structure 50.
A fluid (liquid or gas) can be introduced into the circulation spaces 60B and 60C through the circulation holes 58A and 59A. The fluid in the circulation spaces 60B and 60C can be led out of the system through the circulation holes 58B and 59B.

The adhesive laminate 46 can adhere and bond the two outer layer plates 24 and 45 together with the adhesive surface layers 21 and 42. Further, since the adhesive surface layers 21 and 42 in which the flow paths 31, 52 </ b> A and 52 </ b> B are formed, the thin flow paths 31, 52 </ b> A and 52 </ b> B having an arbitrary shape are provided between the outer layer plates 24 and 45. Can be formed. Since the flow paths 31, 52A, 52B are formed in the surface layers 21, 42, the flow paths 31, 52A, 52B having a stable shape can be formed.
Moreover, since the base material layer 43 and the outer layer plates 24 and 45 are bonded by the adhesive surface layers 21 and 42, the adhesive laminate 46 having high mechanical strength and excellent durability is obtained.
Since the adhesive laminate 46 does not require an adhesive layer, its structure is simple, and the flow path structure 50 can be easily manufactured. In addition, since there is no need to use an adhesive layer (adhesive), a fluid adhesive such as liquid does not enter the flow path and the flow path is not blocked.
Since the adhesive laminate 46 has the base material layer 43, the shape stability of the flow paths 31, 52A, 52B can be improved. Therefore, durability can be improved. In addition, it is possible to secure sufficient volumes of the circulation spaces 60A, 60B, and 60C.

The flow channel 31 is a flow channel having both side surfaces made of the surface layer 21 and the bottom surface made of the base material layer 43. The flow paths 52 </ b> A and 52 </ b> B are flow paths in which both side surfaces are made of the surface layer 42 and the top surface is made of the base material layer 43. Therefore, even when the outer layer plates 24 and 45 are made of metal, the area where the fluid touches the metal is reduced.
Therefore, in the adhesive laminate 46, even when the fluid contains water, problems such as retention of water due to metal wettability and blockage of the flow path due to freezing of the accumulated water are unlikely to occur.

  The adhesive laminate 46 allows fluids to flow independently from each other on one surface side (for example, the upper surface side in FIG. 7) and the other surface side (for example, the lower surface side in FIG. 7) of the flow path structure 50.

[Adhesive Laminate and Channel Structure] (Fourth Embodiment)
FIG. 9 is an exploded perspective view showing a schematic configuration of the flow path structure 70 of the fourth embodiment. 10 is a cross-sectional view showing the flow path structure 70, and is a cross-sectional view taken along the line IV-IV ′ of FIG.
As shown in FIGS. 9 and 10, the flow path structure 70 includes an adhesive laminate 66 and outer layer plates 64 and 25 provided on both surfaces thereof.

In the adhesive laminate 66, the first surface layer 61, the base material layer 43, and the second surface layer 22 are laminated and adhered in this order. That is, the flow path structure 70 has a five-layer configuration in which the first outer layer plate 64 / first surface layer 61 / base material layer 43 / second surface layer 22 / second outer layer plate 25 are laminated in this order. .
The constituent materials of the surface layers 61 and 22 and the base material layer 43 may be the same as the constituent materials of the surface layers 1 and 2 and the base material layer 3, respectively. The constituent materials of the first outer layer plate 64 and the second outer layer plate 25 may be the same as the constituent materials of the first outer layer plate 4 and the second outer layer plate 5.

  The first surface layer 61 is formed with a first surface layer channel 71 through which fluid can flow. The surface layer channel 71 is formed so as to penetrate the first surface layer 61 in the thickness direction. The surface layer channel 71 has a rectangular main portion 74 in a plan view, and a direction away from the main portion 74 (−X direction) starting from one side portion 74a of the main portion 74 (a side portion on the −X direction side). And a plurality of extending portions extending in a direction (+ X direction) away from the main portion 74, starting from the other side portion 74b (+ X direction side portion) of the main portion 74. 75B to 75D. The extending portions 75B to 75D are formed at intervals in the Y direction.

  The first outer layer plate 64 is formed with through holes 78A to 78D communicating with the extending portions 75A to 75D of the surface layer channel 71 of the first surface layer 61, respectively, penetrating in the thickness direction. .

The surface layer channel 71 of the first surface layer 61 forms a circulation space 80 inside the channel structure 70. The surface layer channel 71 is a branch channel in which one extension 75A communicates with one circulation hole 78A and the other extension 75B-75D communicates with the circulation holes 78B-78D, respectively.
In the flow channel structure 70, a fluid (liquid or gas) is introduced into the circulation space 80 through the circulation hole 78A. The fluid in the circulation space 80 can be led out of the system through the circulation holes 78B to 78D.

The adhesive laminate 66 can adhere and bond the two outer layer plates 64 and 25 with the adhesive surface layers 61 and 22. Further, since the adhesive surface layer 61 and the surface layer 22 in which the flow channel 71 is formed are used, the thin flow channel 71 having an arbitrary shape can be formed between the outer layer plates 64 and 25. . Since the channel 71 is formed in the surface layer 61, the channel 71 having a stable shape can be formed.
Moreover, since the base material layer 43 and the outer layer plates 64 and 25 are bonded by the adhesive surface layers 61 and 22, the adhesive laminate 66 having high mechanical strength and excellent durability can be obtained.
Since the adhesive laminate 66 does not require an adhesive layer, its structure is simple and the flow path structure 70 can be easily manufactured. In addition, since there is no need to use an adhesive layer (adhesive), a fluid adhesive such as liquid does not enter the flow path and the flow path is not blocked.
Since the adhesive laminate 66 has the base material layer 43, the shape stability of the flow path 61 can be improved. Therefore, durability can be improved. In addition, a sufficient volume of circulation space 80 can be secured.

  The flow channel 71 is a flow channel having both side surfaces made of the surface layer 61 and the bottom surface made of the substrate layer 43. Therefore, even when the outer layer plates 64 and 25 are made of metal, the area where the fluid touches the metal is reduced. Therefore, in the adhesive laminate 66, even when the fluid contains water, problems such as retention of water due to metal wettability and blockage of the flow path due to freezing of the accumulated water are unlikely to occur.

  Since the adhesive laminate 46 has the flow path 71 that is a branch flow path, the fluid can be branched and flowed.

FIG. 11 is a cross-sectional view showing a flow channel structure 10A which is a modification of the flow channel structure 10 shown in FIG.
10 A of flow-path structures are the points by which the undercoat layer 7 is provided between the 1st surface layer 1 and the base material layer 3, and between the 2nd surface layer 2 and the base material layer 3. 1 is different from the flow channel structure 10 shown in FIG.
The undercoat layer 7 is made of, for example, a resin similar to the resin used for the surface layers 1 and 2. The undercoat layer 7 can enhance the adhesion between the surface layers 1 and 2 and the base material layer 3.
The undercoat layer 7 shown in FIG. 11 is provided both between the first surface layer 1 and the base material layer 3 and between the second surface layer 2 and the base material layer 3. The undercoat layer may be provided only on one of these.

  As an apparatus to which the adhesive laminate and the flow path structure of the embodiment can be applied, a semiconductor device, an automobile, an aircraft, a ship, a chemical plant, a pharmaceutical manufacturing apparatus, a developing machine, a printing machine, an analytical instrument, a food device, a nuclear power plant, There are fuel cells, electronic parts manufacturing equipment, petroleum refining equipment, etc.

In addition, this invention is not limited to the above-mentioned embodiment, A various change is possible in the range which does not deviate from the summary of this invention.
In the flow channel structure 10 shown in FIG. 1, the flow channel is formed on both the surface layers 1 and 2, but the flow channel may be formed only on the surface layer 1 or only on the surface layer 2. May be.
Further, the surface layer flow path formed in the surface layer and the intermediate flow path formed in the base material layer do not have to completely coincide with each other in a plan view, and communicate with each other if at least a part thereof overlaps. .

  1, 21, 61 ... first surface layer, 2, 22, 42 ... second surface layer, 3, 23, 43 ... base material layer, 4, 24, 64 ... first outer layer plate, 5, 25, 45 ... second outer layer plate, 6, 26, 46, 66 ... adhesive laminate, 7 ... undercoat layer, 10, 30, 50, 70 ... channel structure, 11, 31, 71 ... first surface Layer flow path, 12, 52A, 52B ... second surface layer flow path, 13, 33 ... intermediate flow path, 18, 19, 38A, 38B, 58A, 58B, 59A, 59B, 78A, 78B, 78C, 78D ... Distribution hole.

Claims (11)

The first surface layer having the heat fusion adhesive property, the base material layer, and the second surface layer having the heat fusion adhesion property are laminated and adhered in this order,
An adhesive laminate, wherein a surface layer flow path through which a fluid can flow is formed through at least one of the first and second surface layers in the thickness direction.   The adhesive laminate according to claim 1, wherein the first and second surface layers are hot-melt adhesive layers that are solid at room temperature.   The adhesive laminate according to claim 2, wherein the hot-melt adhesive layer contains a polyolefin.   The adhesive laminate according to any one of claims 1 to 3, wherein the base material layer has a melting point higher than a curing start temperature or a softening point of the surface layer.   2. An undercoat layer is further provided between at least one of the first surface layer and the base material layer and between the second surface layer and the base material layer. The adhesive laminated body of any one of -4.   The adhesion according to any one of claims 1 to 5, wherein an intermediate flow path that allows the fluid to flow and communicates with the surface layer flow path is formed in the base material layer. Laminate.   The adhesive laminate according to claim 6, wherein the surface layer flow path is formed in both the first and second surface layers.   The adhesive layered product according to any one of claims 1 to 7, wherein the surface layer channel has a branched structure.   It is laminated | stacked on the outer surface of the adhesive laminated body of any one of Claims 1-8, the 1st outer layer board laminated | stacked on the outer surface of the said 1st surface layer, and the said 2nd surface layer. And a second outer layer plate.   The flow path structure according to claim 9, wherein the first and second outer layer plates are metal plates, glass plates, or plastic plates.   The flow channel structure according to claim 9 or 10, wherein a flow hole communicating with the surface layer flow channel is formed in at least one of the first and second outer layer plates.

Images