JP2003217355A - Wire harness protection material and wire harness using this - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tape-like wire harness protection material in which deterioration of an electric wire in a bundle of electric wires, preferably an electric wire coated with a non-halogen resin is not remarkably promoted by suppressing or inhibiting a copper injury caused by transferring an adhesive side/base material side deterioration promotion factor and reduction of an antioxidant in the coating material; and a wire harness using this. <P>SOLUTION: In the wire harness protection material, an adhesive is coated on at least one surface of a tape-like base material comprising a non-halogen system resin or a vinyl chloride resin. An adsorbent is contained in the adhesive and/or the base material and one or two or more resins selected from a hydrogenated terpene based resin, an aromatic hydrogenated resin, an aliphatic hydrogenated resin, a coumarone-indene based resin, a phenol based resin and a styrene based resin are contained in the adhesive as an adhesiveness-imparting agent. It is preferable that the antioxidant and/or a copper inhibitor are contained in the adhesive and/or the base material. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness protective material and a wire harness using the same, and more particularly to protecting the outer circumference of an electric wire bundle in a wire harness used for wiring automobiles, electric appliances and the like. The present invention relates to a suitable wire harness protection material and a wire harness using the same.

[0002]

2. Description of the Related Art In recent years, high performance and high functionality have been rapidly promoted mainly in automobiles and electric appliances, so that various electronic equipments have been installed in automobiles and electric appliances. There is. In order to operate these facilities accurately, a plurality of electric wires are used for internal wiring of automobiles and electric appliances.

Generally, a plurality of these electric wires are bundled as a bundle of electric wires and used in the form of a so-called wire harness. This wire harness is also called an assembled electric wire, and it is an assembly of multiple electric wires in advance in the form required for wiring. After performing necessary branching, attaching a connector to the terminal, etc., tape shape, tube shape Alternatively, a wire harness protective material having various shapes such as a sheet shape is wound around the outer circumference of the wire bundle to be formed.

As an electric wire used in the above wire harness, a vinyl chloride resin such as polyvinyl chloride added with an additive such as a plasticizer or a heat stabilizer for the purpose of imparting flexibility or moldability is used from copper or the like. An electric wire (hereinafter referred to as "PVC electric wire") coated on the outer periphery of the conductor is widely used.

As the tape-shaped wire harness protection material, for example, a tape-shaped base made of a vinyl chloride resin such as polyvinyl chloride is an adhesive obtained by mixing a natural rubber or a synthetic rubber with a tackifier or a plasticizer. An adhesive tape applied to the surface of the material (hereinafter referred to as "PVC adhesive tape") and the like are widely used.

However, the vinyl chloride resin, which is widely used as a general-purpose resin, has a halogen element in its molecular structure, and thus is harmful when it is burned in the case of a fire of an automobile or the incineration and disposal of electric appliances. However, it has a problem that it emits various halogen-based gases into the atmosphere and causes environmental pollution.

Therefore, recently, as a part of environmental measures, P
BACKGROUND ART Vinyl chloride resins used in VC-based electric wires, PVC-based adhesive tapes and the like have been actively replaced with non-halogen-based resins.

As the substitute resin of this type, for example, a non-halogen flame-retardant olefin resin obtained by adding a predetermined amount of a flame retardant, a copper damage inhibitor, an antiaging agent, etc. to an olefin resin is being considered as a possible alternative candidate.

From such a background, as the electric wire in the wire harness, not only the PVC type electric wire is used alone, but also the electric wire (hereinafter referred to as “HF”) in which the outer circumference of the conductor made of copper or the like is coated with a halogen-free resin. It is a situation in which it is possible that both a "system electric wire") and a PVC electric wire are used in a mixed state, or an HF electric wire is used alone.

On the other hand, for the tape-shaped wire harness protective material, not only the PVC-based adhesive tape is used alone, but also the adhesive tape in which the base material is replaced with a halogen-free resin (hereinafter referred to as "HF-based adhesive tape"). It is a situation in which it is possible that the "adhesive tape") and the PVC adhesive tape are used in a mixed state, or the HF adhesive tape is used alone.

[0011]

By the way, since a wire harness for an automobile is used in a severe environment such as around an engine, the heat aging performance is one of the important factors in quality.

However, the inventors have prepared a wire harness by winding a PVC-based adhesive tape around the outer circumference of a wire bundle consisting of a single HF-based wire or a wire bundle in which HF-based wires and PVC-based wires are mixed. As a result of conducting a heat aging test, it was found that the heat aging performance of the HF-based electric wire in each wire harness was significantly inferior to the heat aging performance of the HF-based electric wire alone.

A wire bundle consisting of an HF-based wire alone, H
HF adhesive tape is wrapped around the outer circumference of the wire bundle in which F-type electric wire and PVC-type electric wire are mixed to produce a wire harness, and a heat aging test is also performed. It has been found that the heat aging performance of the system electric wire is significantly inferior to the heat aging performance of the HF electric wire alone.

Then, the present inventors investigated deterioration of various electric wires in a wire harness formed by winding a tape-shaped wire harness protective material around the outer circumference of various electric wire bundles, and found that the cause was as follows. Came to turn on.

That is, since the tape-shaped wire harness protective material has the structure in which the adhesive is applied to the surface of the base material as described above, the wire harness protective material is used for the outer periphery of various wire bundles. When wrapped around, the wire bundle and the adhesive come into direct contact. Therefore, a so-called transfer occurs in which the tackifier, the plasticizer, and the like contained in the pressure-sensitive adhesive move into the coating material of the HF-based electric wire, diffuse, and permeate.

When the conductor of the HF-based electric wire is made of a copper-based material, the tackifier or plasticizer that has migrated into the coating material acts on the copper to generate a copper ion having a catalytic action.

Usually, the copper ion generated in the coating material of the HF-based electric wire is trapped as a chelate compound by the copper damage inhibitor contained in the coating material in advance, so that its catalytic action is lost. When the ionization of copper is promoted by the tackifier or plasticizer that has migrated into the coating material, the copper damage inhibitor that has been added to the coating material of the HF-based electric wire in advance is consumed in excess of the normally expected amount. There will be a shortage.

Therefore, excess copper ions for the copper anti-corrosion agent are not stabilized as a chelate compound, and the copper ions having a catalytic action break the chemical bond of the non-halogen resin as a coating material to cause deterioration. Accelerated so-called copper damage occurs. As a result, the heat aging performance of the HF-based electric wire in the wire harness is significantly inferior to the heat aging performance of the HF-based electric wire alone.

In addition to the above, the antiaging agent previously added to the coating material of the HF-based electric wire is dissolved / extracted by the tackifier or plasticizer transferred into the coating material, and the antiaging agent is added. Re-migration occurs in which the contained tackifier or plasticizer migrates again to the wire harness protective material side. Therefore, the amount of the anti-aging agent in the coating material decreases beyond the normally assumed decrease amount over time. Also by this, the heat aging performance of the HF-based electric wire in the wire harness is significantly inferior to the heat aging performance of the HF-based electric wire alone.

As described above, in the tape-shaped wire harness protective material, the tackifier contained in the adhesive directly contacting the surface of the electric wire bundle, the plasticizer, and the low content of the covering material deteriorated in the adhesive. It is considered that the molecular weight compound (hereinafter referred to as “adhesive-side deterioration accelerating factor”) has a great influence on the deterioration of the electric wire.

When a base material such as a PVC adhesive tape contains a plasticizer or the like, a low molecular weight compound having a deterioration effect on the plasticizer contained in the base material or the coating material contained in the other base material. It is considered that even if (hereinafter referred to as “base material side deterioration accelerating factor”) migrates into the coating material of the electric wire via the pressure-sensitive adhesive, similar deterioration is caused to some extent.

Therefore, the problem to be solved by the present invention is to prevent the copper damage and the decrease of the antioxidant in the coating material due to the migration of the above-mentioned deterioration promoting factor on the pressure-sensitive adhesive side or the deterioration promoting factor on the substrate side, or Provided is a tape-shaped wire harness protective material that does not significantly accelerate the deterioration of the wires in the wire bundle of the wire harness, preferably the wires coated with a non-halogen resin, and the wire harness using the same. Especially.

[0023]

In order to solve this problem, the wire harness protection material according to claim 1 has a halogen element content lower than that of a vinyl chloride resin compound or a halogen-free resin. Alternatively, a pressure-sensitive adhesive is applied to at least one surface of a tape-shaped base material made of vinyl chloride resin, wherein the pressure-sensitive adhesive and / or the base material contains an adsorbent, In the adhesive, hydrogenated terpene resin, aromatic hydrogenated resin, aliphatic hydrogenated resin, coumarone-
The gist is that one or more resins selected from an indene resin, a phenol resin, and a styrene resin are contained as a tackifier.

According to the wire harness protection material of the first aspect, since the adhesive and / or the base material contains the adsorbent, the adhesive-side deterioration accelerating factor such as the tackifier, the plasticizer, etc. The base material side deterioration promoting factor is adsorbed by the adsorbent. As a result, these adhesive-side deterioration promoting factors and substrate-side deterioration promoting factors are fixed in the wire harness protective material,
The transfer of the electric wire into the covering material is suppressed. Therefore, it is possible to prevent or suppress the copper damage caused by the migration of the pressure-sensitive adhesive deterioration factor or the base-side deterioration factor and the decrease of the antioxidant in the coating material. Therefore, the deterioration of the electric wires in the electric wire bundle is not significantly promoted.

Further, in the wire harness protective material according to claim 1, as the tackifier contained in the adhesive, a hydrogenated terpene resin, an aromatic hydrogenated resin, an aliphatic hydrogenated resin, One or more specific resins selected from coumarone-indene resins, phenol resins, and styrene resins, that is, resins having low reactivity and difficult to bond with other atoms or molecules are used.

Therefore, even if all the tackifiers are not adsorbed by the adsorbent and some of the tackifiers migrate into the coating material of the electric wire, the tackifier adheres to the electric wire conductor made of a copper-based material. The imparting agent does not act, and it becomes possible to prevent or suppress the generation of copper ions in the coating material. Therefore, copper damage due to the tackifier is reliably avoided, and deterioration of the electric wires in the electric wire bundle is not significantly promoted due to the migration of the tackifier.

At this time, as described in claim 2, it is preferable that the adsorbent is silica, carbon black or a mixture thereof.

The wire harness protective material according to claim 3 is the wire harness protective material according to claim 1 or 2, wherein the content of the adsorbent is such that, in the adhesive, the adhesive main component resin Within the range of 1 to 150 parts by weight with respect to 100 parts by weight, within the base material, within the range of 1 to 150 parts by weight with respect to 100 parts by weight of the base component resin, the content of the tackifier The amount is 10 to 2 with respect to 100 parts by weight of the adhesive main component resin.
The gist is that the amount is within the range of 00 parts by weight.

According to the wire harness protection material of the third aspect, the content of the adsorbent in the adhesive is within the range of 1 to 150 parts by weight with respect to 100 parts by weight of the adhesive main component resin. In the base material, since it is within the range of 1 to 150 parts by weight with respect to 100 parts by weight of the base material main component resin,
The effect of adsorption is fully exerted, and the workability of winding is not impaired. Moreover, since the content of the tackifier is in the range of 10 to 200 parts by weight with respect to 100 parts by weight of the adhesive main component resin, it is possible to secure a sufficient adhesive force and impair the winding workability and the like. It will not be

The wire harness protection material according to claim 4 is the wire harness protection material according to any one of claims 1 to 3, wherein the adhesive and / or the base material further contains an antioxidant and / or copper damage. The gist is that an inhibitor is contained.

According to the wire harness protection material of claim 4, for example, not all of the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor are adsorbed by the adsorbent, and some of these are in the wire covering material. Even when the transition to the case, if the anti-aging agent is contained in the adhesive and / or the substrate in advance, of the anti-aging agent between the wire harness protective material side and the covering material side. Since the concentration gradient can be reduced, it is possible to prevent or suppress the decrease of the antioxidant in the coating material due to the migration of the pressure-sensitive adhesive deterioration promoting factor and the base material deterioration promoting factor.

On the other hand, when a copper damage inhibitor is contained in advance in the adhesive and / or the substrate, the migration of the adhesive-side deterioration promoting factor and the substrate-side deterioration promoting factor which are not adsorbed by the adsorbent is carried out. Even if copper ions are generated in the covering material due to the above, and the copper damage preventive agent contained in the covering material is consumed by this, resulting in copper damage, the wire harness protective material side Since a new copper damage inhibitor is replenished to the coating material side, it is possible to reliably avoid copper damage.

Therefore, the effect of containing an adsorbent in the pressure-sensitive adhesive and / or the base material, the effect of using one or more resins selected from specific resins as a tackifier, Combined with the effect of containing the antioxidant and / or the copper damage inhibitor in the agent and / or the base material, it is possible to efficiently prevent the deterioration of the electric wires in the electric wire bundle.

A wire harness protection material according to a fifth aspect of the present invention is the wire harness protection material according to the fourth aspect, wherein the adhesive and / or
Alternatively, the content of the anti-aging agent contained in the base material is an electric wire in an electric wire bundle around which the wire harness protective material is wound, and is a coating of an electric wire coated with the non-halogen resin containing the anti-aging agent. The content of the antioxidant contained in the material is within the range of 10% to 500%, and the content of the copper damage inhibitor is 100 parts by weight of the adhesive resin component in the adhesive. In contrast, the gist is that the content is within the range of 0.001 to 5 parts by weight, and within the range of 0.001 to 5 parts by weight with respect to 100 parts by weight of the base resin component in the base material. It is a thing.

According to the wire harness protection material of the fifth aspect, the content of the anti-aging agent contained in the adhesive and / or the base material is in the wire bundle around which the wire harness protection material is wound. Since the electric wire is within the range of 10% to 500% with respect to the content of the antioxidant contained in the covering material of the electric wire coated with the halogen-free resin containing the antiaging agent, the wire harness protective material An anti-aging agent concentration balance is maintained between the side and the dressing side. for that reason,
It is possible to effectively prevent or suppress the decrease of the antioxidant in the coating material due to the migration of the pressure-sensitive adhesive deterioration promoting factor and the base material deterioration promoting factor.

In the adhesive, the content of the copper damage inhibitor is 0.00 based on 100 parts by weight of the adhesive resin component.
In the range of 1 to 5 parts by weight, and in the base material, it is set to 0.001 to 5 parts by weight with respect to 100 parts by weight of the base resin component. The effect of replenishing is great, and the quality of the wire harness protection material itself is not impaired.

Therefore, the effect of containing the adsorbent in the pressure-sensitive adhesive and / or the base material, the effect of using one or more resins selected from specific resins as the tackifier, The effect due to the inclusion of the antioxidant and / or the copper damage inhibitor in the agent and / or the base material is further combined with each other, whereby the deterioration of the electric wire in the electric wire bundle can be prevented more efficiently.

A wire harness protection material according to a sixth aspect is the one according to the fifth aspect, wherein the adhesive and / or
Alternatively, it is a gist that the anti-aging agent contained in the base material and the anti-aging agent contained in the covering material of the electric wire are of the same kind.

According to the wire harness protection material of claim 6, the anti-aging agent contained in the adhesive and / or the base material and the anti-aging agent contained in the electric wire coating material are of the same kind. Therefore, it becomes easier to obtain the concentration balance of the antioxidant between the wire harness protective material side and the covering material side,
It is possible to more effectively prevent or suppress the decrease of the anti-aging agent in the coating material due to the migration of the pressure-sensitive adhesive deterioration promoting factor and the base material deterioration promoting factor.

A wire harness according to a seventh aspect is characterized in that the wire harness protective material according to the first to sixth aspects is wound around the outer circumference of an electric wire bundle.

According to the wire harness of the seventh aspect, it is possible to obtain a wire harness in which the electric wires in the electric wire bundle are not significantly deteriorated and the quality can be maintained for a long period of time.

A wire harness according to claim 8 contains the wire harness protective material according to any one of claims 1 to 6 containing an antioxidant and having a halogen element content lower than that of a vinyl chloride resin compound or containing a halogen element. The gist of the present invention is that the wire bundle is wound around the outer circumference of an electric wire bundle having at least an electric wire coated with a non-halogen-based resin.

According to the wire harness of the eighth aspect, even when the electric wire bundle is in a state in which the electric wire coated with the non-halogen resin and the electric wire coated with the vinyl chloride resin are mixed, the non-halogen resin is used. It is possible to obtain a wire harness that can maintain the quality for a long period of time without the electric wire covering the wire being significantly deteriorated.

[0044]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below. The wire harness protective material according to the present invention is one in which an adhesive is applied to at least one surface of a tape-shaped substrate made of a non-halogen-based resin or a vinyl chloride resin, and the adhesive and / or the substrate contains Contains an adsorbent, and the adhesive contains a specific resin as a tackifier.

Here, the adhesive and / or the adsorbent contained in the base material of the wire harness protective material according to the present invention is an adhesive-side deterioration accelerating factor such as a tackifier as an adsorbate, a plasticizer, or the like. The adsorbent contained in order to adsorb the base material side deterioration accelerating factor. That is, this adsorbent is a porous carrier having adsorptive power, and specifically, silica, carbon black, silica gel, white carbon, calcium carbonate, magnesium carbonate, clay, synthetic zeolite, activated carbon, activated alumina, activated clay, Examples include diatomaceous earth.
In addition, 1 or 2 or more of these may be contained and it is not particularly limited. Suitably, silica, carbon black or a mixture thereof is preferable because it excels in adsorption power even in a small amount.

The content of these adsorbents is in the range of 1 to 150 parts by weight with respect to 100 parts by weight of the adhesive main component resin in the pressure-sensitive adhesive, and in the base material, It is preferable that the amount is in the range of 1 to 150 parts by weight with respect to 100 parts by weight of the main component resin.

If the amount is less than 1 part by weight, the effect of incorporating the adsorbent tends to be insufficient, and if the amount exceeds 150 parts by weight, the winding workability tends to deteriorate and the practical use tends to become unusable. Not preferable. More preferably,
From the viewpoint that the effect of containing the adsorbent is large and the winding workability is excellent, the amount is preferably in the range of 5 to 100 parts by weight.

The specific surface area of the adsorbent is preferably at least 2.5 m ² / g or more. This is because when the specific surface area is smaller than 2.5 m ² / g, the effect of incorporating the adsorbent tends to be insufficient.
The upper limit of the specific surface area is not particularly limited. This is because there is no harmful effect due to too large a specific surface area.

Next, in the adhesive of the wire harness protective material according to the present invention, hydrogenated terpene resin, aromatic hydrogenated resin, aliphatic hydrogenated resin, coumarone-indene resin,
One or more specific resins selected from phenolic resins and styrene resins are contained as tackifiers.

Here, the hydrogenated terpene resin is a hydrogenated terpene resin, and the aromatic hydrogenated resin is C
_The hydrogenated resin obtained by polymerizing ₅ fractions and the aliphatic hydrogenated resin means the hydrogenated resin obtained by polymerizing C ₉ fraction.

Specifically, as the hydrogenated terpene resin,
Poly (β-pinene), polydipentene, poly (α-pinene), α-pinenephenol, dipentenephenol,
Hydrogenated resin containing terpene phenol in the skeleton, aromatic hydrogenated resin, hydrogenated resin containing skeleton indene, styrene, methylindene, α-methylstyrene, etc., aliphatic water Examples of the additive resin include those obtained by hydrogenating a resin having isoprene, cyclopentadiene, 1,3-pentadiene, 1-pentene, 2-pentene, dicyclopentadiene and the like in its skeleton.

The coumarone-indene resin is a resin obtained by polymerizing a coal tar fraction containing a coumarone resin and an indene resin, and the phenolic resin is a resin obtained by polymerizing phenol and its derivative as a main component. The obtained resin and styrene-based resin are resins obtained by polymerizing styrene and its derivative as a main component.

Specifically, the coumarone-indene resin is a resin containing coumarone, indene, styrene, dicyclopentadiene, α-methylstyrene or the like in the skeleton, and the phenolic resin is an alkylphenol such as pt-butylphenol. Examples of the styrene-based resin include resins having a skeleton containing styrene, α-methylstyrene, p-methylstyrene and the like.

These particular resins as tackifiers include
Various compositions can be prepared according to the application in consideration of the type of the adhesive main component resin constituting the adhesive, the degree of adhesive strength to be imparted, the cost, and the like. In addition, when two or more specific resins are contained as a tackifier in the pressure-sensitive adhesive, two or more different resins selected from the same kind of resin may be contained, or two or more kinds of resins may be contained. Two or more different resins selected from the resins may be contained and are not particularly limited.

The content of these tackifiers is 10 to 200 relative to 100 parts by weight of the adhesive main component resin.
It is preferably within the range of parts by weight.

When the amount is less than 10 parts by weight, sufficient adhesive force cannot be imparted, and when the amount is more than 200 parts by weight, the winding workability is deteriorated and practical use tends to be unpreferable. More preferably, tack,
From the viewpoint of adhesive strength, holding power, etc., it is preferably in the range of 20 to 100 parts by weight.

Next, as the pressure-sensitive adhesive main component resin constituting the pressure-sensitive adhesive containing the above-mentioned adsorbent, tackifier, etc., a rubber resin mixed with natural rubber or synthetic rubber, acrylic acid or ethyl acrylate is used. , Butyl acrylate, 2-ethylhexyl acrylate, and other homopolymers containing acrylic acid ester as the main monomer, or copolymers of these main monomers with vinyl acetate, methyl methacrylate, etc. An acrylic acid-based resin, a silicone-based resin, a polyether-based resin, a polyurethane-based resin and the like can be used.

In addition to these adsorbents and tackifiers, various additives such as plasticizers, softeners, and fillers are added to these pressure-sensitive adhesive main component resins within the range not departing from the object of the present invention. May be.

Next, as the resin forming the tape-shaped substrate to which the adhesive is applied, either a non-halogen resin or a vinyl chloride resin can be used.

Here, the non-halogen resin is a molding material in which a plasticizer, a stabilizer, a filler, and the like are mixed with vinyl chloride resin and kneaded to form a shape that is easy to mold, that is, containing a halogen element rather than a so-called vinyl chloride resin compound. A resin having a low rate or containing no halogen element.

That is, the non-halogen resin in the present application is not only a resin containing no halogen element at all, but also a resin containing a halogen element in the resin structure within a range in which the content of the halogen element is smaller than that of the vinyl chloride resin compound or This resin, or a resin containing no halogen element at all, conceptually includes a so-called low halogen-based resin such as a resin in which various additives such as a flame retardant containing a halogen element are added.

As such a non-halogen resin,
Specifically, flame retardants containing no halogen elements such as magnesium hydroxide and aluminum hydroxide in olefin resins such as polypropylene, polyethylene and propylene-ethylene copolymer, or bromine elements such as tetrabromobisphenol A and its derivatives. Flame retardants containing halogen elements,
Preferable examples include non-halogen flame-retardant olefin resins and the like to which phenol-based, amine-based antiaging agents, triazine-based derivatives and other copper-damage-preventing agents are added, but other non-halogen-based resins can also be used. It is good and is not particularly limited.

On the other hand, the vinyl chloride resin means a homopolymer of vinyl chloride or a copolymer containing vinyl chloride as a main component, and may be a mixture of one or two or more thereof. Specific examples thereof include polyvinyl chloride, ethylene vinyl chloride copolymer, propylene vinyl chloride copolymer and the like.

Next, in the wire harness protection material according to the present invention, the adhesive and //
Alternatively, the base material preferably further contains a predetermined amount of an antioxidant and / or a copper damage inhibitor. In the case where not all of the adhesive-side deterioration accelerating factors such as tackifiers and substrate-side deterioration accelerating factors such as plasticizers are adsorbed by the adsorbent and some of them migrate into the electric wire coating material. Also, it is possible to reliably prevent the deterioration of the electric wires in the electric wire bundle.

Here, the fact that the wire harness protective material according to the present invention contains an antioxidant and / or a copper damage inhibitor means that the above-mentioned adhesive and / or various resins used for the substrate are When commonly used as an application,
Even if it is usual that it is not necessary to include an antiaging agent or a copper damage inhibitor in each resin, it means to include them.

For example, in general, additives such as plasticizers and heat stabilizers are often added to polyvinyl chloride, and anti-aging agents and the like are not added, but according to the present invention. When polyvinyl chloride is used as the base material of the wire harness protection material, it is preferable that a predetermined amount of an antioxidant or the like is added.

Here, the anti-aging agent is a so-called aging phenomenon in which the physical properties and chemical properties of the polymer material change due to environmental factors placed in the polymer material and the passage of time, so that the performance deteriorates. An organic compound added to suppress or delay. Specifically, tetrakis- [methylene-3
-(3 ', 5'-di-tert-butyl-4'-hydroxyphenyl) propionate] methane, octadecyl-3
Phenolic compounds such as-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 4,4'-dioctyldiphenylamine, N-phenyl-N'-1,
Examples include amine-based antioxidants such as 3-dimethylbutyl-p-phenylenediamine. In addition, 1 or 2 or more of these antioxidants may be added, and it is not particularly limited.

The content of the anti-aging agent contained in the pressure-sensitive adhesive and / or the base material is the electric wire in the electric wire bundle around which the wire harness protective material is wound, and the non-halogen containing anti-aging agent. 10% to 500% with respect to the content of the antioxidant contained in the coating material of the electric wire coated with the base resin
It is preferable that it is within the range.

If the amount is less than 10%, the effect of incorporating the anti-aging agent tends to be insufficient, and the effect is 500.
If it exceeds%, the workability tends to be deteriorated and it may not be practically applicable, which is not preferable. More preferably, it is preferably in the range of 10% to 150% from the viewpoint of more effectively preventing the antiaging agent on the coating material side from migrating to the wire harness protective material side. At this time, it is preferable that the anti-aging agent contained in the pressure-sensitive adhesive and / or the base material and the anti-aging agent contained in the electric wire coating material are of the same type.

At this time, in the above description, the content of the anti-aging agent contained in the coating material of the electric wire coated with the non-halogenated resin containing the anti-aging agent means the organic component (organic material constituting the coating material) constituting the coating material. Of the components, the ratio of the antiaging agent to the antiaging agent is excluded). Therefore, when the content of the antioxidant contained in the coating material is, for example, 3%, the adhesive and / or the base material contains the adhesive and / or
Or the content of the antioxidant contained in the base material is 0.3%
(Corresponds to 10%) to 15% (corresponds to 500%)
This means that it is preferable to add an antioxidant so that

On the other hand, the copper damage inhibitor is usually added to the coating material of the electric wire coated on the outer periphery of the conductor mainly composed of copper, and captures the copper ion having a catalytic action as a chelate compound. It is added in order to prevent deterioration of the coating material resin due to copper ions, that is, so-called copper damage, by stabilizing the resin.

Specifically, 1,2,3-benzotriazole, tolyltriazole and its derivative, tolyltriazole amine salt, tolyltriazole potassium salt, 3-
Examples thereof include (N-salicyloyl) amino-1,2,4-triazole, triazine derivatives, hydrazide derivatives such as decamethylenedicarboxylic acid disalicyloyl hydrazide, oxalic acid derivatives, and salicylic acid derivatives. As this kind of copper damage preventing agent, a low melting point type copper damage preventing agent is preferable from the viewpoint that the wire harness protecting material is easily dissolved and easily migrates into the coating material when heated. In addition, 1 or 2 or more of these copper damage inhibitors may be added, and it is not particularly limited.

The content of the copper damage inhibitor contained in the adhesive and / or the base material is as follows.
Within the range of 0.001 to 5 parts by weight with respect to 100 parts by weight of the adhesive resin component, and in the base material, within the range of 0.001 to 5 parts by weight with respect to 100 parts by weight of the base resin component. Is preferred.

When the amount is less than 0.001 part by weight, the effect of incorporating the copper damage inhibitor tends not to be sufficiently obtained, and when it exceeds 5 parts by weight, the additive is precipitated from the resin on the surface. It is not preferable because it tends to crystallize due to so-called blooming, which tends to impair the quality. More preferably, from the viewpoint of further enhancing the effect of replenishing the copper anti-corrosion agent into the coating material, it is preferably within the range of 0.01 parts by weight to 5 parts by weight.

The structure of the wire harness protection material according to the present invention has been described above. Hereinafter, the operation of the wire harness protection material according to the present invention having the above-described configuration will be described.

As described above, the wire harness protective material according to the present invention comprises a tape-shaped base material made of a non-halogen resin or vinyl chloride resin, to which at least one surface is coated with an adhesive. And / or the base material contains an adsorbent, and the adhesive contains a specific resin as a tackifier.

According to the wire harness protection material of the present invention, since the adhesive and / or the base material contains the adsorbent, the adhesive-side deterioration accelerating factor such as the tackifier or the base such as the plasticizer is used. The material deterioration promoting factor is adsorbed by the adsorbent. As a result, these adhesive-side deterioration accelerating factor and base material-side deterioration accelerating factor are fixed in the wire harness protective material, and migration of the electric wire into the covering material is suppressed. Therefore, it is possible to prevent or suppress the copper damage caused by the migration of the pressure-sensitive adhesive deterioration factor or the base-side deterioration factor and the decrease of the antioxidant in the coating material. Therefore, the deterioration of the electric wires in the electric wire bundle is not significantly promoted.

Further, as the tackifier contained in the pressure-sensitive adhesive, a specific resin having low reactivity and being difficult to bond with other atoms or molecules is used, so that all the tackifiers are adsorbed by the adsorbent. However, even when some of the tackifier migrates into the electric wire coating material, the tackifier does not act on the electric wire conductor made of a copper-based material, and copper ions are contained in the coating material. Can be prevented or suppressed. Therefore, copper damage due to the tackifier is reliably avoided, and deterioration of the electric wires in the electric wire bundle is not significantly promoted due to the migration of the tackifier.

At this time, the content of the adsorbent in the adhesive is 1 to 15 with respect to 100 parts by weight of the adhesive main component resin.
In the range of 0 parts by weight, and in the base material, when the content is in the range of 1 to 150 parts by weight with respect to 100 parts by weight of the base material main component resin, the effect of adsorption is sufficiently exerted, and winding is performed. Workability is not impaired.

Further, when the content of the tackifier is in the range of 10 to 200 parts by weight with respect to 100 parts by weight of the adhesive main component resin, sufficient adhesive force can be ensured and the winding Workability is not impaired.

In addition to these, when an antiaging agent is further contained in the pressure sensitive adhesive and / or the base material, all of the pressure sensitive adhesive side deterioration promoting factor and the base material side deterioration promoting factor are adsorbed by the adsorbent. Even if some of these migrate into the covering material of the electric wire, it is possible to reduce the concentration gradient of the antioxidant between the wire harness protective material side and the covering material side. It is possible to prevent or suppress the decrease of the antioxidant in the coating material due to the migration of the pressure-sensitive adhesive deterioration promoting factor and the base material deterioration promoting factor.

At this time, when the anti-aging agent contained in the adhesive and / or the base material and the anti-aging agent contained in the covering material of the electric wire are of the same type, the anti-aging agent is not connected to the wire harness protective material side. It becomes easier to obtain the concentration balance of the antioxidant with the coating material side, and it is more effective to reduce the amount of the antioxidant in the coating material due to the migration of the adhesive agent deterioration accelerating factor and the substrate material deterioration accelerating factor. It becomes possible to prevent or suppress.

On the other hand, when the pressure-sensitive adhesive and / or the base material further contains a copper damage inhibitor, the deterioration factor of the pressure-sensitive adhesive side or the base material-side deterioration accelerating factor not adsorbed by the adsorbent Even if copper ions are generated in the covering material due to migration, and the copper damage inhibitor contained in the covering material is consumed thereby, resulting in copper damage, the wire harness protective material side Since a new copper damage inhibitor is replenished to the coating material side, it is possible to reliably avoid copper damage.

Therefore, in addition to the above-mentioned adsorbent and tackifier, when an antiaging agent is further contained in the adhesive and / or the base material, the adsorbent is contained in the adhesive and / or the base material. And the effect of using one or more resins selected from specific resins as a tackifier, and an antioxidant and / or a copper damage inhibitor in the adhesive and / or the base material. Combined with the effect due to the inclusion of, it becomes possible to efficiently prevent the deterioration of the electric wires in the electric wire bundle.

At this time, the content of the anti-aging agent contained in the adhesive and / or the base material is an electric wire in an electric wire bundle around which the wire harness protective material according to the present invention is wound, 10% to 500 with respect to the content of the antioxidant contained in the coating material of the electric wire coated with a halogen-free resin containing
When the content is within the range of%, the anti-aging agent concentration balance is maintained between the wire harness protective material side and the covering material side, and the migration of the adhesive side deterioration promoting factor and the base material side deterioration promoting factor It is possible to effectively prevent or suppress the decrease of the antiaging agent in the coating material due to the above.

On the other hand, the content of the copper damage inhibitor contained in the adhesive and / or the base material is 0.001 to 5 parts by weight based on 100 parts by weight of the adhesive resin component in the adhesive. Within the range, in the base material, when it is within the range of 0.001 to 5 parts by weight with respect to 100 parts by weight of the base resin component, the effect of supplementing the copper damage inhibitor in the coating material Is large and does not impair the quality of the wire harness protective material itself.

In such an optimum range, the antioxidant and / or
Alternatively, when a copper damage inhibitor is contained, the effect of containing an adsorbent in the pressure-sensitive adhesive and / or the base material and a tackifier containing one or more resins selected from specific resins More effectively combined with the effect of containing the anti-aging agent and / or the copper damage inhibitor in the pressure-sensitive adhesive and / or the base material, the efficiency of deterioration of the electric wire in the electric wire bundle is further improved. It is possible to prevent it well.

Next, a wire harness in which the wire harness protective material having the above-mentioned characteristics is wound around the outer circumference of the wire bundle will be described.

The electric wire bundle in the wire harness according to the present invention includes an electric wire bundle in which electric wires coated with a non-halogen resin containing an anti-aging agent are individually bundled, an electric wire bundle covered with a non-halogen resin in an anti-aging agent and a chloride. An electric wire bundle in which the vinyl resin-coated electric wire and the electric wire covered with the vinyl chloride resin are bundled in a mixed state at an arbitrary ratio, an electric wire bundle in which the electric wires coated with the vinyl chloride resin are individually bundled, and the like can be mentioned, and are particularly limited. In particular, a wire bundle containing at least one wire coated with a non-halogen-based resin containing an antioxidant is preferable from the viewpoint of sufficiently exerting the effects of the above-mentioned wire harness protective material. Can be said.

When an electric wire bundle coated with a non-halogen resin containing an antiaging agent and an electric wire coated with vinyl chloride resin are mixed together at an arbitrary ratio, a vinyl chloride resin is used. In the covering material of the covered electric wire,
10% to the content of the antioxidant contained in the covering material of the electric wire coated with the non-halogen resin containing the antioxidant
It is preferable to add an antioxidant in advance within the range of 500%. This is to prevent the electric wire coated with the non-halogen-based resin containing the antiaging agent from being deteriorated due to the migration phenomenon occurring between the electric wires.

According to the wire harness of the present invention,
Even if the electric wires in the electric wire bundle are not deteriorated and the electric wires in the electric wire bundle are mixed with the electric wires coated with a non-halogen resin and the vinyl chloride resin, the electric wires in the electric wire bundle An electric wire coated with a non-halogen resin is not significantly deteriorated, and a wire harness that can maintain quality for a long period of time can be obtained.

[0092]

EXAMPLES The present invention will be described in more detail with reference to various examples.

(Electric Wire) First, an electric wire in an electric wire bundle around which an adhesive tape as a wire harness protective material according to an embodiment of the present invention is wound will be described. The following three types of electric wires were produced as electric wires.

The first type is an electric wire (hereinafter referred to as "HF") using a non-halogen resin containing no halogen element as a coating material.
It is called "system electric wire"). As shown in Table 1, 80 parts by weight of magnesium hydroxide as a flame retardant was added to 100 parts by weight of polypropylene, as shown in Table 1.
3 parts by weight of the anti-aging agent and 1 part by weight of the copper damage inhibitor are mixed. The content of the antioxidant contained in the coating material of the HF-based electric wire is (3 parts by weight of the antioxidant) /
(100 parts by weight of polypropylene) × 100 = 3%.

[0095]

[Table 1]

The second type is an electric wire using vinyl chloride resin as a covering material (hereinafter referred to as "PVC electric wire"). As shown in Table 2, the composition of this PVC-based electric wire coating material is 100 parts by weight of polyvinyl chloride (polymerization degree: 1300), and diisononyl phthalate (DINP) 40 as a plasticizer.
By weight, 20 parts by weight of calcium carbonate as a filler and 5 parts by weight of a stabilizer are mixed. In addition, this PVC
The anti-aging agent is not contained in the covering material of the system electric wire.

[0097]

[Table 2]

The third type is an electric wire using a vinyl chloride resin containing an antiaging agent as a coating material (hereinafter referred to as "PVC electric wire (containing antiaging agent)"). As shown in Table 3, the composition of this PVC-based electric wire (containing antiaging agent) is 100 parts by weight of polyvinyl chloride (polymerization degree: 1300) and diisononyl phthalate (DIN) as a plasticizer.
P) 40 parts by weight, 20 parts by weight of calcium carbonate as a filler, 5 parts by weight of stabilizer, and 4.5 parts by weight of antioxidant. And the content rate of the antioxidant contained in the coating material of this PVC-based electric wire (containing the antioxidant) is
(Anti-aging agent 4.5 parts by weight) / (Polyvinyl chloride 100
(Parts by weight + 40 parts by weight of DINP) × 100 = 3.2%. That is, the content of the antioxidant contained in the coating material of the HF-based electric wire is 3%, which is equivalent to about 100%.

[0099]

[Table 3]

All of these three types of electric wires have a diameter of 0.
Cross-sectional area of 0.5 mm by twisting seven 32 mm annealed copper wires
² the conductor outer periphery of which is formed on the copper twisted wire ^(outer diameter 1.0 mm), using an extruder a mixture of a coating material consisting of the formulation shown in Table 1 to Table 3 in each biaxial kneader 0. 3 mm
It is extruded and coated to a thickness. For HF type electric wires, the mixing temperature is 250 ° C and the extrusion temperature is 250 ° C, and PVC type electric wires and PVC type electric wires (containing anti-aging agent)
The mixing temperature was 180 ° C and the extrusion temperature was 180 ° C.

(Test Adhesive Tape as Wire Harness Protecting Material) Next, a test adhesive tape as a wire harness protecting material according to one embodiment of the present invention will be described.
As the test adhesive tape, the following six types of adhesive tapes were produced. At this time, the thickness of the base material was 0.11 mm and the thickness of the adhesive was 0.02 mm.

The first type is one in which an adhesive is applied to one surface of a base material made of vinyl chloride resin, and the adhesive and the base material contain an adsorbent and an antioxidant, and
The PVC-based pressure-sensitive adhesive tapes of Examples 1 to 6 (hereinafter referred to as "PVC") in which a tackifier made of a specific resin is contained in the pressure-sensitive adhesive.
System adhesive tape (containing anti-aging agent) "). Table 4 shows the formulations of the PVC-based pressure-sensitive adhesive tapes of Examples 1 to 6 (containing an antioxidant).

Specifically, the base materials of Examples 1 to 6 were prepared by mixing dioctyl phthalate (DO) as a plasticizer with 100 parts by weight of polyvinyl chloride (polymerization degree: 1300).
P) 60 parts by weight, 20 parts by weight of calcium carbonate as a filler, 5 parts by weight of a stabilizer, and 5 parts by weight of an anti-aging agent were mixed, and for Examples 1 to 3, carbon black was used as an adsorbent in amounts of 1 and 10, respectively. , 150 parts by weight, Example 4 to
Regarding No. 6, 1, 10 and 150 parts by weight of silica were blended, respectively. In this case,
The base component resin is polyvinyl chloride, and the base resin component is polyvinyl chloride and DOP (the same applies to PVC-based substrates, so the description is omitted).

On the other hand, 70 parts by weight of styrene-butadiene rubber and 30 parts of natural rubber were used as the mixture of the adhesives of Examples 1 to 6.
Parts by weight, 20 parts by weight of zinc white, 80 parts by weight of an aromatic hydrogenated resin as a tackifier made of a specific resin, and an antioxidant 6
In Examples 1 to 3, carbon black was used as an adsorbent in an amount of 1 to 10 parts by weight and 150 parts by weight, respectively.
With respect to parts by weight and Examples 4 to 6, silica was blended in amounts of 1, 10, and 150 parts by weight, respectively.
In this case, the adhesive main component resin is styrene-butadiene rubber and natural rubber, and the adhesive resin component is styrene-butadiene rubber, natural rubber and aromatic hydrogenated resin (hereinafter, the same applies to the adhesive. Therefore, the description is omitted).

As a comparison with these Examples 1 to 6,
Comparative Example 1 was prepared by using 160 parts by weight of carbon black, and Comparative Example 2 was prepared by using 160 parts by weight of silica. In addition, the conventional product 1 was one in which an adsorbent and an anti-aging agent were not added to the base material and the adhesive at all, and a rosin resin was used as the tackifier instead of the above specific resin.

[0106]

[Table 4]

The second type is one in which a pressure-sensitive adhesive is applied to one side of a base material made of a non-halogen resin, and the pressure-sensitive adhesive and the base material contain an adsorbent and an anti-aging agent. The HF-based pressure-sensitive adhesive tapes of Examples 7 to 12 (hereinafter referred to as “HF-based pressure-sensitive adhesive tapes (containing anti-aging agent)”) in which a tackifier made of a specific resin is contained in the agent. Table 5 shows the formulations of the HF-based pressure-sensitive adhesive tapes (containing an antioxidant) of Examples 7 to 12.

Specifically, the base materials of Examples 7 to 12 were compounded with 3 parts by weight of a bromine-based flame retardant, 1.5 parts by weight of antimony trioxide, 100 parts by weight of polyolefin, and 3. 5 parts by weight were mixed, and in Examples 7 to 9, carbon black was used as an adsorbent, respectively.
In the case of 10, 150 parts by weight and Examples 10 to 12, silica is blended in an amount of 1, 10, 150 parts by weight, respectively. In this case, the base component resin is polyolefin, and the base resin component is polyolefin and bromine-based flame retardant (the same applies to HF-based substrates, so description is omitted).

On the other hand, as the compounding of the pressure-sensitive adhesive of Examples 7 to 12, 70 parts by weight of styrene-butadiene rubber and 3 parts of natural rubber were used.
0 parts by weight, 20 parts by weight of zinc oxide, 80 parts by weight of an aromatic hydrogenated resin as a tackifier composed of a specific resin, and 6 parts by weight of an anti-aging agent were added to the adsorbents of Examples 7 to 9. Carbon black as 1, 10, 15 respectively
Regarding 0 parts by weight and Examples 10 to 12, silica is blended at 1, 10, and 150 parts by weight, respectively.

As a comparison with Examples 7 to 12, a carbon black content of 160 parts by weight was used as Comparative Example 3, and a silica content of 160 parts by weight was used as Comparative Example 4. In addition, the conventional product 2 was a product in which an adsorbent and an antioxidant were not added to the base material and the adhesive at all, and a rosin resin was used as the tackifier instead of the above specific resin.

[0111]

[Table 5]

The third type is one in which an adhesive is applied to one side of a base material made of vinyl chloride resin, and the adsorbent and the copper damage inhibitor are contained in the adhesive and the base material, and
The PVC-based pressure-sensitive adhesive tapes of Examples 13 to 18 (hereinafter, referred to as "P", in which a tackifier made of a specific resin is contained in the pressure-sensitive adhesive).
VC type adhesive tape (containing copper damage inhibitor) "). Table 6 shows the formulations of the PVC-based pressure-sensitive adhesive tapes (containing a copper damage inhibitor) of Examples 13 to 18.

Concretely, as the composition of the base material of Examples 13 to 18, polyvinyl chloride (polymerization degree 1300) 100 was used.
Dioctyl phthalate (D
OP) 60 parts by weight, 20 parts by weight of calcium carbonate as a filler, 5 parts by weight of a stabilizer, and 1.6 parts by weight of a copper damage inhibitor were added, and for Examples 13 to 15, carbon black was used as an adsorbent, respectively. 1, 10, 150 parts by weight,
For Examples 16-18, silica was added 1, 1 respectively.
It is a mixture of 0 and 150 parts by weight.

On the other hand, the adhesives of Examples 13 to 18 were compounded as follows: 70 parts by weight of styrene-butadiene rubber, 30 parts by weight of natural rubber, 20 parts by weight of zinc white, and aromatic water as a tackifier made of a specific resin. 80 parts by weight of the additive resin and 1.8 parts by weight of the copper damage inhibitor were mixed, and in Examples 13 to 15, carbon black was used as an adsorbent, respectively.
In the case of 10, 150 parts by weight and Examples 16 to 18, silica is blended in an amount of 1, 10, 150 parts by weight, respectively.

For comparison with Examples 13 to 18, Comparative Example 5 was prepared by using 160 parts by weight of carbon black, and Comparative Example 6 was prepared by using 160 parts by weight of silica. Further, Conventional Product 3 was prepared by adding no adsorbent and no copper damage inhibitor to the base material and the adhesive, and using a rosin resin as the tackifier instead of the above specific resin.

[0116]

[Table 6]

The fourth type is one in which a pressure-sensitive adhesive is applied to one side of a base material made of a non-halogen resin, and the pressure-sensitive adhesive and the base material contain an adsorbent and a copper damage inhibitor, and The HF-based pressure-sensitive adhesive tapes of Examples 19 to 24 (hereinafter referred to as "HF-based pressure-sensitive adhesive tape (containing copper damage inhibitor)") in which a tackifier made of a specific resin is contained in the agent. Table 7 shows the formulations of the HF-based pressure-sensitive adhesive tapes (containing a copper damage inhibitor) of Examples 19 to 24.

Concretely, the base materials of Examples 19 to 24 were compounded in such a manner that 3 parts by weight of a bromine-based flame retardant, 1.5 parts by weight of antimony trioxide, 1 part of a copper damage inhibitor were used per 100 parts by weight of polyolefin. In Examples 19 to 21, 1, 10 and 150 parts by weight of carbon black, respectively, and in Examples 22 to 24, silica was added in an amount of 1, 10 and 150 parts by weight, respectively. It has become a thing.

On the other hand, the composition of the adhesive of Examples 19 to 24 was as follows: 70 parts by weight of styrene-butadiene rubber, 30 parts by weight of natural rubber, 20 parts by weight of zinc white, aromatic water as a tackifier composed of a specific resin. 80 parts by weight of the additive resin and 1.8 parts by weight of the copper damage inhibitor were mixed, and in Examples 19 to 21, carbon black was used as an adsorbent, respectively.
In the case of 10, 150 parts by weight and Examples 22 to 24, silica is blended in an amount of 1, 10, 150 parts by weight, respectively.

For comparison with Examples 19 to 24, a carbon black content of 160 parts by weight was used as Comparative Example 7, and a silica content of 160 parts by weight was used as Comparative Example 8. In addition, a conventional product 4 was prepared by adding no adsorbent and no copper damage inhibitor to the base material and the adhesive, and using a rosin resin as the tackifier instead of the specific resin.

[0121]

[Table 7]

The fifth type is a vinyl chloride resin substrate coated with an adhesive on one side. The adhesive and the substrate contain an adsorbent, an antioxidant and a copper damage inhibitor. In addition, the PVC-based pressure-sensitive adhesive tapes of Examples 25 to 30 (hereinafter referred to as "PVC-based pressure-sensitive adhesive tape (containing antioxidant and copper damage inhibitor)") containing a tackifier made of a specific resin in the pressure-sensitive adhesive. ). Examples 25 to 30
Table 8 shows the composition of the PVC-based adhesive tape (containing an antioxidant and a copper damage inhibitor).

Concretely, as the composition of the base material of Examples 25 to 30, polyvinyl chloride (polymerization degree 1300) 100
Dioctyl phthalate (D
OP) 60 parts by weight, 20 parts by weight of calcium carbonate as a filler, 5 parts by weight of a stabilizer, 5 parts by weight of an antiaging agent, 1.6 parts by weight of a copper damage inhibitor were added to Examples 25 to 27. 1 carbon black each as an adsorbent,
In the case of 10, 150 parts by weight and Examples 28 to 30, silica is blended in an amount of 1, 10, 150 parts by weight, respectively.

On the other hand, the adhesives of Examples 25 to 30 were compounded with 70 parts by weight of styrene-butadiene rubber and 30 parts of natural rubber.
Parts by weight, 20 parts by weight of zinc white, 80 parts by weight of an aromatic hydrogenated resin as a tackifier made of a specific resin, and an antioxidant 6
In Examples 25 to 27, carbon black was used as an adsorbent in an amount of 1 part by weight, respectively, in an amount of 1 part by weight.
0, 150 parts by weight, and in Examples 28-30, 1, 10 and 150 parts by weight of silica are blended, respectively.

For comparison with Examples 25 to 30, Comparative Example 9 was prepared by using 160 parts by weight of carbon black, and Comparative Example 10 was prepared by using 160 parts by weight of silica. Further, the adsorbent, the antiaging agent and the copper damage inhibitor are not mixed in the base material and the adhesive at all, and,
Conventional product 5 was prepared by using a rosin resin instead of the above specific resin as a tackifier.

[0126]

[Table 8]

The sixth type is a base material made of a non-halogen resin in which an adhesive is applied to one side, and an adsorbent, an antioxidant and a copper damage inhibitor are contained in the adhesive and the base material. In addition, the HF-based pressure-sensitive adhesive tapes of Examples 31 to 36 in which the pressure-sensitive adhesive contains a tackifier made of a specific resin (hereinafter referred to as “HF-based pressure-sensitive adhesive tape (containing antioxidant and copper damage inhibitor)”). ). Examples 31 to 36
HF adhesive tape (with antioxidant and copper damage inhibitor)
The formulation is shown in Table 9.

More specifically, the base materials of Examples 31 to 36 were compounded with 3 parts by weight of a bromine flame retardant, 1.5 parts by weight of antimony trioxide, 100 parts by weight of a polyolefin, and 3. 5 parts by weight, and 1 part by weight of a copper damage inhibitor were mixed with 1, 31 and 150 parts by weight of carbon black as an adsorbent for Examples 31 to 33 and silica for Examples 34 to 36, respectively. 1, 10,
It is a mixture of 150 parts by weight.

On the other hand, the compounds of Examples 31 to 36 were compounded as follows: 70 parts by weight of styrene-butadiene rubber, 30 parts by weight of natural rubber, 20 parts by weight of zinc white, and aromatic water as a tackifier composed of a specific resin. In addition to 80 parts by weight of the additive resin, 6 parts by weight of the antioxidant, 1.8 parts by weight of the copper damage inhibitor, for Examples 31 to 33, 1, 10, 150 parts by weight of carbon black as an adsorbent, Example 34-
For No. 36, silica was blended in an amount of 1, 10 and 150 parts by weight, respectively.

As a comparison with Examples 31 to 36, Comparative Example 11 was prepared by using 160 parts by weight of carbon black, and Comparative Example 12 was prepared by using 160 parts by weight of silica. Further, the adsorbent, the antiaging agent and the copper damage inhibitor are not mixed in the base material and the adhesive at all, and,
Conventional product 6 was prepared by using a rosin resin instead of the above specific resin as a tackifier.

[0131]

[Table 9]

Table 10 shows a list of the electric wire coating materials and the adhesive tape materials as the wire harness protective materials described above together with the manufacturers. Carbon black has a specific surface area of 42 m ² / g, and silica has a specific surface area of 210 m ^2.
m ² / g was used.

[0133]

[Table 10]

(Electric Wire Bundle) Next, an electric wire bundle on which the test adhesive tape as the wire harness protective material according to the embodiment of the present invention is wound will be described. As the electric wire bundle, the following three kinds of electric wire bundles were produced.

The first type is an electric wire bundle (hereinafter referred to as "H", which is a bundle of 30 HF electric wires covered with the covering material shown in Table 1).
It is referred to as a "single F-type electric wire bundle").

The second type is an electric wire obtained by bundling a PVC-based electric wire coated with the coating material shown in Table 2 and an HF-based electric wire coated with the coating material shown in Table 1 in a predetermined mixing ratio. A bundle (hereinafter referred to as a “mixed wire bundle of PVC-based wires and HF-based wires”). At this time, as the mixing ratio, when the ratio of PVC electric wires to HF electric wires (pieces) is 29 (pieces): 1 (pieces), when 20 (pieces): 10 (pieces), 1 (pieces) : 29
Three patterns were prepared for (book).

The third type is a PVC-based electric wire (containing an anti-aging agent) coated with the coating material shown in Table 3 and an HF-based electric wire coated with the coating material shown in Table 1 at a predetermined mixing ratio. It is a bundle of electric wires bundled together (hereinafter referred to as “PVC electric wire (containing antiaging agent) and HF electric wire mixed electric wire bundle”). At this time, as a mixing ratio, the ratio of PVC electric wires (containing an anti-aging agent) to HF electric wires (book) is 29 (book): 1
For (book), 20 (book): 10 (book), 1
(Book): Three patterns of 29 (book) were prepared.

In the second and third types, when only one wire is a different type of electric wire, the electric wires are bundled so as to contact the adhesive of the test adhesive tape, and 20 (pieces):
In the case of 10 (pieces), consideration was given so that different kinds of electric wires were bundled in a dispersed state. (Sample wire harness)

Next, a test wire harness in which a test adhesive tape as a wire harness protecting material according to an embodiment of the present invention is wound around the outer circumference of an electric wire bundle will be described.
As described above, since there are 6 types of test adhesive tapes and 3 types of electric wire bundles, 18 types of test wire harnesses, which are all combinations, were manufactured.

Specifically, the wire harness of Examples W1 to W6 in which the PVC adhesive tape of Examples 1 to 6 (containing an anti-aging agent) is wound around a single HF-based wire bundle.
HF-based adhesive tapes of Examples 7 to 12 (containing antioxidant)
The wire harness of Examples W7 to W12, the wire harness of Examples W13 to W18, and the HF of Examples 19 to 24, to which the PVC-based adhesive tape of Examples 13 to 18 (containing a copper damage inhibitor) is wound. Examples in which a system adhesive tape (containing a copper anti-corrosion agent) is wound, Examples in which the wire harness of W19 to W24 and PVC adhesive tapes in Examples 25 to 30 (containing an antiaging agent and a copper anti-corrosion agent) are wound W25 ~ W
30 is a wire harness of Example 30, and the HF-based adhesive tape of Examples 31 to 36 (containing an antioxidant and a copper damage inhibitor) is wound on the wire harness of Examples W31 to W36. still,
The wire harnesses to which the respective adhesive tapes of Comparative Examples 1 to 12 and Conventional Products 1 to 6 were respectively wound were used for comparison.

The wire harnesses of Examples W37 to W42 in which the PVC adhesive tape of Examples 1 to 6 (containing an anti-aging agent) is wound around a mixed wire bundle of PVC and HF wires. The wire harness of Examples W43 to W48 wound with the HF-based adhesive tapes 7 to 12 (containing the anti-aging agent) and the PVC-based adhesive tapes of Examples 13 to 18 (containing the copper damage inhibitor). Examples W55 to W60 in which the wire harnesses of W49 to W54 and the HF-based adhesive tape (containing a copper damage inhibitor) of Examples 19 to 24 are wound.
Wire harness of Examples, wire harnesses of Examples W61 to W66 wound with the PVC-based adhesive tape of Examples 25 to 30 (containing an antioxidant and a copper damage inhibitor), and Examples 31 to 31.
36 is a wire harness of Examples W67 to W72 in which 36 HF-based pressure-sensitive adhesive tapes (containing an antioxidant and a copper damage inhibitor) are wound. In addition, the wire harnesses in which the respective adhesive tapes of Comparative Examples 1 to 12 and Conventional Products 1 to 6 were respectively wound were used for comparison.

In addition, Examples 1 to 6 were applied to mixed electric wire bundles of PVC electric wires (containing antiaging agent) and HF electric wires.
The wire harness of Examples W73 to W78 wound with the PVC-based adhesive tape (containing an antioxidant) of Examples, and Examples 7-1.
No. 2 wire harness of Examples W79 to W84 wound with the HF-based adhesive tape (containing an antioxidant), Example 13 to
Wire harnesses of Examples W85 to W90 wound with 18 PVC-based adhesive tapes (containing a copper damage inhibitor), Example 1
The wire harnesses of Examples W91 to W96 and the PVC adhesive tapes of Examples 25 to 30 (containing an antiaging agent and a copper anticorrosion agent) wound with HF adhesive tapes 9 to 24 (containing a copper anticorrosion agent). The wound wire harness of Examples W97 to W102 and the wound wire of Example 31 to 36 of the HF-based adhesive tape (containing an antioxidant and a copper damage inhibitor)
It is a wire harness of 103-W108. In addition, the wire harnesses in which the respective adhesive tapes of Comparative Examples 1 to 12 and Conventional Products 1 to 6 were respectively wound were used for comparison.

(Test Method) Various confirmation tests were conducted using the test wire harness prepared as described above. As the contents of the confirmation test, each test wire harness was left in a constant temperature bath of 150 ° C. for 96 hours (hr), then taken out from the constant temperature bath and the test adhesive tape was peeled off. It was wrapped around a mandrel, and it was visually confirmed whether or not cracks were formed in the covering material of the electric wire. The results of this test show whether the workability of winding the test adhesive tape around the wire bundle during the production of the test wire harness is good / defective, and the good / defective adhesiveness of the adhesive during the production of the test adhesive tape. Comprehensive evaluation was conducted with test results. The appearance of the adhesive tapes to which the copper damage inhibitor was added was also evaluated.

(Test Results) 1. A wire harness in which a PVC-based adhesive tape (containing an anti-aging agent) is wrapped around a bundle of HF-based individual wires (hereinafter simply referred to as "HF-based individual wire bundle x PVC-based adhesive tape (containing anti-aging agent)". Unless otherwise indicated, the same applies to other wire harnesses.)

Table 11 shows the test results of a single HF-based electric wire bundle × PVC-based adhesive tape (containing an anti-aging agent). As a result, in the winding test on the mandrel, it was determined that the HF-based electric wire in the wire harness of the conventional product W1 had cracks and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W1 to 6 were not cracked in the winding test on the mandrel. This is because the PVC-based adhesive tapes of Examples 1 to 6 (containing an antioxidant) are
Since the adhesive and the base material contain an adsorbent, the adsorbent adsorbs the deterioration promoting factor on the adhesive side and the deterioration promoting factor on the base material side, and prevents these substances from migrating into the coating material. Or it is understood that it was possible to suppress. Further, it can be understood that the effect of containing the anti-aging agent in the pressure-sensitive adhesive and the base material was great.

On the other hand, regarding the tape wrapping workability and the coating paste property, the PVC adhesive tapes of Comparative Examples 1 and 2 (containing the antiaging agent) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based pressure-sensitive adhesive tapes of Examples 1 to 6 (containing the anti-aging agent) were judged to be good in both tape wrapping workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0148]

[Table 11]

2. HF series electric wire single wire bundle x HF series adhesive tape (with anti-aging agent)

Table 12 shows the test results of a single HF-based electric wire bundle × HF-based adhesive tape (containing an anti-aging agent). As a result, in the winding test on the mandrel, the conventional product W
It was determined that the HF-based electric wire in the wire harness of No. 2 had a crack and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Further, it was determined that the HF adhesive tape of Conventional Product 2 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W7 to 12 were not cracked in the winding test on the mandrel. This is the HF-based adhesive tape of Examples 7 to 12 (containing an antioxidant).
Since the adsorbent is contained in the adhesive and the base material,
It is considered that the PSA-side deterioration promoting factor and the substrate-side deterioration promoting factor were adsorbed by the adsorbent and were able to prevent or suppress the migration of these into the coating material. Also,
It can be understood that the effect of containing the anti-aging agent in the adhesive and the base material was also large.

On the other hand, regarding the tape winding workability and the paste application property, the HF-based adhesive tapes of Comparative Examples 3 and 4 (containing the antiaging agent) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, Example 7
The HF-based pressure-sensitive adhesive tapes (containing anti-aging agent) of Nos. 12 to 12 were judged to be good in both tape wrapping workability and paste application property. It is understood that this is because the adsorbent was blended in the suitable range. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0154]

[Table 12]

3. HF-based wire single wire bundle x PVC-based adhesive tape (containing copper damage inhibitor)

Table 13 shows the test results of the HF-based electric wire alone electric wire bundle × the PVC-based adhesive tape (containing the copper damage inhibitor). As a result, in the winding test on the mandrel, it was determined that the HF-based electric wire in the wire harness of the conventional product W3 was cracked and defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W13 to 18 were not cracked in the winding test on the mandrel. this is,
Since the PVC-based pressure-sensitive adhesive tapes of Examples 13 to 18 (containing a copper damage inhibitor) contain an adsorbent in the pressure-sensitive adhesive and the base material, the pressure-sensitive adhesive side deterioration promoting factor and the base material side deterioration promoting factor are adsorbed. It is considered that it was possible to prevent or suppress the migration of these substances into the coating material by being adsorbed by the agent. It is also understood that the effect of containing the copper damage inhibitor in the pressure-sensitive adhesive and the base material was great.

On the other hand, regarding the tape wrapping workability and the paste application property, the PVC adhesive tapes of Comparative Examples 5 and 6 (containing the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based adhesive tapes of Examples 13 to 18 (containing a copper damage inhibitor)
Was determined to be good in both tape wrapping workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range. There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0159]

[Table 13]

4. HF series electric wire single wire bundle x HF series adhesive tape (containing copper damage inhibitor)

Table 14 shows the test results of a single HF-based electric wire bundle × HF-based adhesive tape (containing a copper damage inhibitor). As a result, in the winding test on the mandrel, the conventional product W
It was determined that the HF-based electric wire in the wire harness of No. 4 had a crack and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Further, it was judged that the HF-based adhesive tape of Conventional Product 4 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W19 to 24 were not cracked in the winding test on the mandrel. this is,
Since the HF-based pressure-sensitive adhesive tapes of Examples 19 to 24 (containing a copper damage inhibitor) contained an adsorbent in the pressure-sensitive adhesive and the base material, the pressure-sensitive adhesive side deterioration promoting factor and the base material side deterioration promoting factor were adsorbed. It is considered that it was possible to prevent or suppress the migration of these substances into the coating material by being adsorbed by the agent. It is also understood that the effect of containing the copper damage inhibitor in the pressure-sensitive adhesive and the base material was great.

On the other hand, regarding the tape winding workability and the coating paste property, the HF-based adhesive tapes of Comparative Examples 7 and 8 (containing the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, Example 1
The HF-based pressure-sensitive adhesive tapes 9 to 24 (containing a copper damage inhibitor) were judged to have good tape wrapping workability and coating paste properties. It is understood that this is because the adsorbent was blended in the suitable range. There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0165]

[Table 14]

5. HF-based wire single wire bundle x PVC-based adhesive tape (with antioxidant and copper damage inhibitor)

Table 1 shows the test results of a single HF-based wire bundle × PVC adhesive tape (containing an antioxidant and a copper damage inhibitor).
5 shows. As a result, in the winding test on the mandrel, it was determined that the HF-based electric wire in the wire harness of the conventional product W5 was cracked and defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W25 to 30 were not cracked in the winding test on the mandrel. this is,
The effect of containing an adsorbent in the adhesive and the base material, the effect of containing a tackifier made of a specific resin in the adhesive, and the anti-aging agent and copper damage in the adhesive and the base material. It is considered that the effect of the inclusion of the inhibitor was combined.

On the other hand, the PVC adhesive tapes of Comparative Examples 9 and 10 (containing the antiaging agent and the copper damage inhibitor) were judged to be defective in tape winding workability and coating paste property. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based pressure-sensitive adhesive tapes of Examples 25 to 30 (containing the antiaging agent and the copper damage inhibitor) were judged to be good in both tape winding workability and coating paste property. this is,
It is considered that the adsorbent was blended in the suitable range.
There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0170]

[Table 15]

6. HF-based wire single wire bundle x HF-based adhesive tape (containing antioxidant and copper damage inhibitor)

Table 16 shows the test results of a single HF-based electric wire bundle × HF-based adhesive tape (containing an antioxidant and a copper damage inhibitor).
Shown in. As a result, in the winding test on the mandrel, it was determined that the HF-based electric wire in the wire harness of the conventional product W6 was cracked and defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Further, it was determined that the HF adhesive tape of Conventional Product 6 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF type electric wires in the wire harnesses of Examples W31 to 36 did not crack in the winding test on the mandrel. this is,
The effect of containing an adsorbent in the adhesive and the base material, the effect of containing a tackifier made of a specific resin in the adhesive, and the anti-aging agent and copper damage in the adhesive and the base material. It is considered that the effect of the inclusion of the inhibitor was combined.

On the other hand, regarding the tape winding workability and the coating paste property, the HFC adhesive tapes of Comparative Examples 11 and 12 (containing the antiaging agent and the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended.
On the other hand, the PVC-based pressure-sensitive adhesive tapes of Examples 31 to 36 (containing the antiaging agent and the copper damage inhibitor) were judged to be good in both tape winding workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range. There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0176]

[Table 16]

7. [A mixed wire bundle of PVC-based wires and HF-based wires] x PVC-based adhesive tape (containing an anti-aging agent)

Table 17 shows the test results of [mixed electric wire bundle of PVC electric wire and HF electric wire] × PVC adhesive tape (containing antiaging agent). As a result, in the winding test on the mandrel, 29 pieces of the conventional product W7: 1, 20 pieces:
It was determined that the HF-based electric wire had cracks and was defective regardless of the case of any of the 10 wire harnesses and the 29 wire harnesses. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Above all, in the case of a wire harness in which the ratio of PVC-based wires to HF-based wires is 29: 1
It was confirmed that the F-type electric wire tended to deteriorate severely. This is because the plasticizer contained in the PVC-based electric wire covering material is HF.
It is understood that this is due to the migration into the coating material of the system electric wire.

On the other hand, in the HF type electric wires in the wire harnesses of Examples W37 to 42, no crack was generated in the winding test on the mandrel. this is,
PVC-based adhesive tapes of Examples 1 to 6 (containing antioxidant)
Since the adsorbent is contained in the adhesive and the base material,
It is considered that the PSA-side deterioration promoting factor and the substrate-side deterioration promoting factor were adsorbed by the adsorbent and were able to prevent or suppress the migration of these into the coating material. Also,
It can be understood that the effect of containing the anti-aging agent in the adhesive and the base material was also large.

However, also in this case, since the plasticizer and the like contained in the PVC electric wire covering material migrate into the HF electric wire covering material, it is considered that the HF electric wire is deteriorated due to the migration between the electric wires. However, the fact that there was no problem in any of the Examples means that the anti-aging agent in the PVC adhesive tape (containing anti-aging agent) migrated into the coating material of the HF-based electric wire, and the anti-aging agent was present in the coating material. It is understood that the drug was replenished.

On the other hand, with respect to the tape winding workability and the coating paste property, the PVC adhesive tapes of Comparative Examples 1 and 2 (containing the antiaging agent) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based pressure-sensitive adhesive tapes of Examples 1 to 6 (containing the anti-aging agent) were judged to be good in both tape wrapping workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0183]

[Table 17]

8. [A mixed wire bundle of PVC-based wires and HF-based wires] x HF-based adhesive tape (containing an anti-aging agent)

Table 18 shows the test results of [mixed electric wire bundle of PVC electric wire and HF electric wire] × HF adhesive tape (containing antiaging agent). As a result, in the winding test on the mandrel, 29 pieces of conventional product W8: 1 piece, 20 pieces: 1 piece
It was determined that the HF-based electric wire was cracked and defective regardless of the case of any of the 0, 1 and 29 wire harnesses. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Above all, in the case of a wire harness in which the ratio of PVC-based wires to HF-based wires is 29: 1
It was confirmed that the F-type electric wire tended to deteriorate severely. This is because the plasticizer contained in the PVC-based electric wire covering material is HF.
It is understood that this is due to the migration into the coating material of the system electric wire.

Further, it was determined that the HF-based adhesive tape of Conventional Product 2 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W43 to 48 were not cracked in the winding test on the mandrel. this is,
HF-based adhesive tapes of Examples 7 to 12 (containing antioxidant)
Since the adsorbent is contained in the adhesive and the base material,
It is considered that the PSA-side deterioration promoting factor and the substrate-side deterioration promoting factor were adsorbed by the adsorbent and were able to prevent or suppress the migration of these into the coating material. Also,
It can be understood that the effect of containing the anti-aging agent in the adhesive and the base material was also large.

However, also in this case, since the plasticizer and the like contained in the PVC electric wire covering material migrate into the HF electric wire covering material, it is considered that the HF electric wire is deteriorated due to the migration between the electric wires. However, the fact that there was no problem in any of the examples means that the anti-aging agent in the HF-based adhesive tape (containing the anti-aging agent) migrates into the coating material of the HF-based electric wire and prevents the aging in the coating material. It is understood that the drug was replenished.

On the other hand, regarding the tape winding workability and the paste application property, the HF-based adhesive tapes of Comparative Examples 3 and 4 (containing the antiaging agent) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, Example 7
The HF-based pressure-sensitive adhesive tapes (containing anti-aging agent) of Nos. 12 to 12 were judged to be good in both tape wrapping workability and paste application property. It is understood that this is because the adsorbent was blended in the suitable range. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0191]

[Table 18]

9. [A mixed wire bundle of PVC-based wires and HF-based wires] x PVC-based adhesive tape (containing a copper damage inhibitor)

Table 19 shows the test results of [a mixed electric wire bundle of PVC electric wire and HF electric wire] × PVC adhesive tape (containing a copper damage inhibitor). As a result, in the winding test on the mandrel, 29 pieces of the conventional product W9: 1, 20 pieces:
It was determined that the HF-based electric wire had cracks and was defective regardless of the case of any of the 10 wire harnesses and the 29 wire harnesses. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Above all, in the case of a wire harness in which the ratio of PVC-based wires to HF-based wires is 29: 1
It was confirmed that the F-type electric wire tended to deteriorate severely. This is because the plasticizer contained in the PVC-based electric wire covering material is HF.
It is understood that this is due to the migration into the coating material of the system electric wire.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W49 to 54 were not cracked in the winding test on the mandrel. this is,
Since the PVC-based pressure-sensitive adhesive tapes of Examples 13 to 18 (containing a copper damage inhibitor) contain an adsorbent in the pressure-sensitive adhesive and the base material, the pressure-sensitive adhesive side deterioration promoting factor and the base material side deterioration promoting factor are adsorbed. It is considered that it was possible to prevent or suppress the migration of these substances into the coating material by being adsorbed by the agent. It is also understood that the effect of containing the copper damage inhibitor in the pressure-sensitive adhesive and the base material was great.

However, also in this case, since the plasticizer and the like contained in the covering material of the PVC electric wire migrates into the covering material of the HF electric wire, it is considered that the HF electric wire is deteriorated due to the migration between the electric wires. However, the fact that there was no problem in any of the Examples means that the copper damage inhibitor in the PVC adhesive tape (containing the copper damage inhibitor) migrated into the covering material of the HF electric wire, It is considered that the copper anti-corrosion agent was replenished.

On the other hand, regarding the tape wrapping workability and coating paste property, the PVC adhesive tapes of Comparative Examples 5 and 6 (containing the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based adhesive tapes of Examples 13 to 18 (containing a copper damage inhibitor)
Was determined to be good in both tape wrapping workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range. There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0198]

[Table 19]

10. [Mixed wire bundle of PVC-based wires and HF-based wires] x HF-based adhesive tape (containing copper damage inhibitor)

Table 20 shows the test results of [mixed electric wire bundle of PVC electric wire and HF electric wire] × HF adhesive tape (containing copper damage inhibitor). In the winding test on the mandrel, 29 pieces of conventional product W10: 1, 20 pieces: 10 pieces, 1 piece
Book: In any of the 29 wire harnesses, the HF-based electric wire was cracked and determined to be defective. This is because the accelerating factor on the adhesive side and the accelerating factor on the substrate side are HF.
It is considered that the migration to the coating material of the system electric wire resulted in copper damage and a decrease in the anti-aging agent in the coating material.

Above all, in the case of a wire harness in which the ratio of PVC-based wires to HF-based wires is 29: 1
It was confirmed that the F-type electric wire tended to deteriorate severely. This is because the plasticizer contained in the PVC-based electric wire covering material is HF.
It is understood that this is due to the migration into the coating material of the system electric wire.

Further, it was determined that the HF-based adhesive tape of Conventional Product 4 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W55 to 60 were not cracked in the winding test on the mandrel. this is,
Since the HF-based pressure-sensitive adhesive tapes of Examples 19 to 24 (containing a copper damage inhibitor) contained an adsorbent in the pressure-sensitive adhesive and the base material, the pressure-sensitive adhesive side deterioration promoting factor and the base material side deterioration promoting factor were adsorbed. It is considered that it was possible to prevent or suppress the migration of these substances into the coating material by being adsorbed by the agent. It is also understood that the effect of containing the copper damage inhibitor in the pressure-sensitive adhesive and the base material was great.

However, also in this case, since the plasticizer contained in the covering material for the PVC electric wire migrates into the covering material for the HF electric wire, it is considered that the HF electric wire is deteriorated due to the migration between the electric wires. However, the fact that there was no problem in any of the examples means that the copper damage inhibitor in the HF adhesive tape (containing the copper damage inhibitor) migrated into the covering material of the HF electric wire, and It is considered that the copper anti-corrosion agent was replenished.

On the other hand, regarding the tape winding workability and the coating paste property, the HF adhesive tapes of Comparative Examples 7 and 8 (containing the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, Example 1
The HF-based pressure-sensitive adhesive tapes 9 to 24 (containing a copper damage inhibitor) were judged to have good tape wrapping workability and coating paste properties. It is understood that this is because the copper damage inhibitor was blended in the suitable range. There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0206]

[Table 20]

11. [Mixed wire bundle of PVC-based wires and HF-based wires] x PVC-based adhesive tape (containing antioxidant and copper damage inhibitor)

Table 21 shows the test results of [mixed wire bundle of PVC-based wire and HF-based wire] × PVC-based adhesive tape (containing antioxidant and copper damage inhibitor). As a result, in the winding test on the mandrel, 29
In the case of any of the wire harnesses of 1, 1, 20, 10, and 29, it was determined that the HF-based electric wire was cracked and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

[0209] Above all, in the case of a wire harness in which the ratio of PVC-based wires to HF-based wires is 29: 1
It was confirmed that the F-type electric wire tended to deteriorate severely. This is because the plasticizer contained in the PVC-based electric wire covering material is HF.
It is understood that this is due to the migration into the coating material of the system electric wire.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W61 to 66 did not show any cracks in the winding test on the mandrel. this is,
The effect of containing an adsorbent in the adhesive and the base material, the effect of containing a tackifier made of a specific resin in the adhesive, and the anti-aging agent and copper damage in the adhesive and the base material. It is considered that the effect of the inclusion of the inhibitor was combined.

However, also in this case, since the plasticizer and the like contained in the covering material of the PVC electric wire migrates into the covering material of the HF electric wire, it is considered that the HF electric wire is deteriorated due to the migration between the electric wires. However, the fact that there was no problem in any of the Examples means that the anti-corrosion agent and the copper anti-corrosion agent in the PVC adhesive tape (containing the anti-corrosion agent and the copper anti-corrosion agent) are in the coating material of the HF-based electric wire. It is understood that this is due to the fact that the anti-aging agent and the copper damage inhibitor were replenished in the coating material.

On the other hand, the PVC adhesive tapes of Comparative Examples 9 and 10 (containing the antiaging agent and the copper damage inhibitor) were judged to be poor in tape winding workability and coating paste property. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based pressure-sensitive adhesive tapes of Examples 25 to 30 (containing the antiaging agent and the copper damage inhibitor) were judged to be good in both tape winding workability and coating paste property. It is understood that this is because the adsorbent was mixed in the suitable range.
There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0213]

[Table 21]

12. [A mixed wire bundle of PVC-based electric wires and HF-based electric wires] x HF-based adhesive tape (containing an antioxidant and a copper damage inhibitor)

Table 22 shows the test results of [mixed electric wire bundle of PVC electric wire and HF electric wire] × HF adhesive tape (containing antiaging agent and copper damage preventing agent). As a result, in the winding test on the mandrel, 29 pieces of the conventional product W12:
It was determined that the HF-based electric wire was cracked and defective regardless of whether the wire harness was 1, 20, 10 or 1, 29. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Above all, in the case of a wire harness in which the ratio of PVC-based wires to HF-based wires is 29: 1
It was confirmed that the F-type electric wire tended to deteriorate severely. This is because the plasticizer contained in the PVC-based electric wire covering material is HF.
It is understood that this is due to the migration into the coating material of the system electric wire.

Further, it was judged that the HF adhesive tape of Conventional Product 6 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF type electric wires in the wire harnesses of Examples W67 to 72 were not cracked in the winding test on the mandrel. this is,
The effect of containing an adsorbent in the adhesive and the base material, the effect of containing a tackifier made of a specific resin in the adhesive, and the anti-aging agent and copper damage in the adhesive and the base material. It is considered that the effect of the inclusion of the inhibitor was combined.

However, also in this case, since the plasticizer and the like contained in the PVC electric wire covering material migrate into the HF electric wire covering material, it is considered that the HF electric wire deteriorates due to the migration between the electric wires. However, the fact that there was no problem in any of the examples means that the anti-aging agent and the anti-copper agent in the HF-based adhesive tape (containing the anti-aging agent and the anti-copper agent) are coating materials for HF-based electric wires. It is believed that the copper was transferred to the inside and the copper anti-corrosion agent was added to the coating material.

On the other hand, regarding the tape winding workability and the coating paste property, the HF-based adhesive tapes of Comparative Examples 11 and 12 (containing the antioxidant and the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the HF pressure-sensitive adhesive tapes of Examples 31 to 36 (containing the antiaging agent and the copper damage inhibitor) were judged to be good in both tape winding workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range.
There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0221]

[Table 22]

13. [PVC electric wire (with anti-aging agent)
And HF-based electric wire mixed wire bundle] x PVC-based adhesive tape (containing antioxidant)

[PVC Electric Wire (with Antiaging Agent) and H
Table 23 shows the test results of mixed electric wire bundle of F type electric wire] × PVC type adhesive tape (containing antiaging agent). As a result, in the winding test around the mandrel, 2
It was determined that the HF-based electric wire was cracked and was defective regardless of the case of any of the 9: 1, 20: 10 and 1: 29 wire harnesses. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W73 to W78 were not cracked in the winding test on the mandrel. this is,
PVC-based adhesive tapes of Examples 1 to 6 (containing antioxidant)
Since the adsorbent is contained in the adhesive and the base material,
It is considered that the PSA-side deterioration promoting factor and the substrate-side deterioration promoting factor were adsorbed by the adsorbent and were able to prevent or suppress the migration of these into the coating material. Also,
It can be understood that the effect of containing the anti-aging agent in the adhesive and the base material was also large.

In addition to the above, in this embodiment,
Since PVC-based electric wire (containing anti-aging agent) is used, P
Even if the plasticizer or the like contained in the covering material of the VC electric wire (containing the anti-aging agent) is transferred to the covering material of the HF electric wire, the deterioration of the covering material of the HF electric wire due to the transfer between the electric wires is prevented. It is understood that the effect of being able to do it was great.

On the other hand, regarding the tape wrapping workability and the coating paste property, the PVC adhesive tapes of Comparative Examples 1 and 2 (containing the antiaging agent) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based pressure-sensitive adhesive tapes of Examples 1 to 6 (containing the anti-aging agent) were judged to be good in both tape wrapping workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0227]

[Table 23]

14. [PVC electric wire (with anti-aging agent)
And HF-based electric wire mixed wire bundle] x HF-based adhesive tape (containing anti-aging agent)

[PVC Electric Wire (with Antiaging Agent) and H
Table 24 shows the test results of a mixed electric wire bundle of F-based electric wires] × HF-based adhesive tape (containing an antioxidant). As a result, in the winding test on the mandrel, 29 of the conventional product W14 was used.
In the case of any of the wire harnesses of 1, 1, 20, 10, and 29, it was determined that the HF-based electric wire was cracked and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Further, it was determined that the HF-based adhesive tape of Conventional Product 2 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W79 to 84 were not cracked in the winding test on the mandrel. this is,
HF-based adhesive tapes of Examples 7 to 12 (containing antioxidant)
Since the adsorbent is contained in the adhesive and the base material,
It is considered that the PSA-side deterioration promoting factor and the substrate-side deterioration promoting factor were adsorbed by the adsorbent and were able to prevent or suppress the migration of these into the coating material. Also,
It can be understood that the effect of containing the anti-aging agent in the adhesive and the base material was also large.

In addition to the above, in this embodiment,
Since PVC-based electric wire (containing anti-aging agent) is used, P
Even if the plasticizer or the like contained in the covering material of the VC electric wire (containing the anti-aging agent) is transferred to the covering material of the HF electric wire, the deterioration of the covering material of the HF electric wire due to the transfer between the electric wires is prevented. It is understood that the effect of being able to do it was great.

On the other hand, regarding the tape winding workability and the coating paste property, the HF-based adhesive tapes of Comparative Examples 3 and 4 (containing the anti-aging agent) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, Example 7
The HF-based pressure-sensitive adhesive tapes (containing anti-aging agent) of Nos. 12 to 12 were judged to be good in both tape wrapping workability and paste application property. It is understood that this is because the adsorbent was blended in the suitable range. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0234]

[Table 24]

15. [PVC electric wire (with anti-aging agent)
And HF-based wire mixed wire bundle] x PVC-based adhesive tape (containing copper damage inhibitor)

[PVC Electric Wire (with Antiaging Agent) and H
Table 25 shows the test results of a mixed electric wire bundle of F-based electric wires] × PVC-based adhesive tape (containing a copper damage inhibitor). In the winding test on the mandrel, 29 pieces of conventional product W15: 1
In any of the wire harnesses of 20 pieces, 10 pieces, and 1 piece: 29 pieces, it was determined that the HF-based electric wire had a crack and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

On the other hand, the HF electric wires in the wire harnesses of Examples W85 to 90 did not show any cracks in the winding test on the mandrel. this is,
Since the PVC-based pressure-sensitive adhesive tapes of Examples 13 to 18 (containing a copper damage inhibitor) contain an adsorbent in the pressure-sensitive adhesive and the base material, the pressure-sensitive adhesive side deterioration promoting factor and the base material side deterioration promoting factor are adsorbed. It is considered that it was possible to prevent or suppress the migration of these substances into the coating material by being adsorbed by the agent. It is also understood that the effect of containing the copper damage inhibitor in the pressure-sensitive adhesive and the base material was great.

In addition to the above, in this embodiment,
Since PVC-based electric wire (containing anti-aging agent) is used, P
Even if the plasticizer or the like contained in the covering material of the VC electric wire (containing the anti-aging agent) is transferred to the covering material of the HF electric wire, the deterioration of the covering material of the HF electric wire due to the transfer between the electric wires is prevented. It is understood that the effect of being able to do it was great.

On the other hand, regarding the tape wrapping workability and coating paste property, the PVC adhesive tapes of Comparative Examples 5 and 6 (containing the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based adhesive tapes of Examples 13 to 18 (containing a copper damage inhibitor)
Was determined to be good in both tape wrapping workability and coating paste property. It is understood that this is because the copper damage inhibitor was blended in the suitable range. There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0240]

[Table 25]

16. [PVC electric wire (with anti-aging agent)
And HF-based electric wire mixed wire bundle] x HF-based adhesive tape (containing copper damage inhibitor)

[PVC Electric Wire (with Antiaging Agent) and H
Table 26 shows the test results of a mixed electric wire bundle of F-based electric wires] × HF-based adhesive tape (containing a copper damage inhibitor). In the winding test on the mandrel, 29 pieces of conventional product W16: 1 piece,
In any of the wire harnesses of 20: 10 and 1: 29, it was determined that the HF electric wire had a crack and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Further, it was determined that the HF-based adhesive tape of Conventional Product 4 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W91 to 96 were not cracked in the winding test on the mandrel. this is,
Since the HF-based pressure-sensitive adhesive tapes of Examples 19 to 24 (containing a copper damage inhibitor) contained an adsorbent in the pressure-sensitive adhesive and the base material, the pressure-sensitive adhesive side deterioration promoting factor and the base material side deterioration promoting factor were adsorbed. It is considered that it was possible to prevent or suppress the migration of these substances into the coating material by being adsorbed by the agent. It is also understood that the effect of containing the copper damage inhibitor in the pressure-sensitive adhesive and the base material was great.

In addition to the above, in this embodiment,
Since PVC-based electric wire (containing anti-aging agent) is used, P
Even if the plasticizer or the like contained in the covering material of the VC electric wire (containing the anti-aging agent) is transferred to the covering material of the HF electric wire, the deterioration of the covering material of the HF electric wire due to the transfer between the electric wires is prevented. It is understood that the effect of being able to do it was great.

On the other hand, regarding the tape winding workability and the coating paste property, the HF-based adhesive tapes of Comparative Examples 7 and 8 (containing the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, Example 1
The HF-based pressure-sensitive adhesive tapes 9 to 24 (containing a copper damage inhibitor) were judged to have good tape wrapping workability and coating paste properties. It is understood that this is because the adsorbent was blended in the suitable range. There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0247]

[Table 26]

17. [PVC electric wire (with anti-aging agent)
And HF-based wire mixed wire bundle] x PVC-based adhesive tape (containing antioxidant and copper damage inhibitor)

[PVC Electric Wire (with Antiaging Agent) and H
Mixed electric wire bundle of F-based electric wire] × PVC adhesive tape (containing antioxidant and copper damage inhibitor) is shown in Table 27.
As a result, in the winding test around the mandrel, 29 pieces of conventional product W17: 1, 20 pieces: 10 pieces, and 1 piece: 2
In the case of any of the 9 wire harnesses, H
It was determined that the F-type electric wire had cracks and was defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W97 to 102 were not cracked in the winding test on the mandrel. This is because the effect of containing an adsorbent in the pressure-sensitive adhesive and the base material, the effect of containing a tackifier made of a specific resin in the pressure-sensitive adhesive, and the anti-aging agent in the pressure-sensitive adhesive and the base material. It is also considered that the effect of the inclusion of the copper damage inhibitor is combined.

In addition to the above, in this embodiment,
Since PVC-based electric wire (containing anti-aging agent) is used, P
Even if the plasticizer or the like contained in the covering material of the VC electric wire (containing the anti-aging agent) is transferred to the covering material of the HF electric wire, the deterioration of the covering material of the HF electric wire due to the transfer between the electric wires is prevented. It is understood that the effect of being able to do was also great

On the other hand, the PVC adhesive tapes of Comparative Examples 9 and 10 (containing the antiaging agent and the copper damage inhibitor) were judged to be poor in tape winding workability and paste applicability. This is considered to be because the adsorbent was excessively blended. On the other hand, the PVC-based pressure-sensitive adhesive tapes of Examples 25 to 30 (containing the antiaging agent and the copper damage inhibitor) were judged to be good in both tape winding workability and coating paste property. It is understood that this is because the adsorbent was mixed in the suitable range.
There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0253]

[Table 27]

18. [PVC electric wire (with anti-aging agent)
And HF-based electric wire mixed wire bundle] x HF-based adhesive tape (containing antioxidant and copper damage inhibitor)

[PVC Electric Wire (with Antiaging Agent) and H
Table 28 shows the test results of a mixed electric wire bundle of F type electric wires] × HF type adhesive tape (containing an antiaging agent and a copper damage preventing agent). As a result, in the winding test around the mandrel, 29 pieces of the conventional product W18: 1, 20 pieces: 10 pieces, and 1 piece: 29
In any of the wire harnesses of the book, the HF-based electric wire in each wire harness was determined to be cracked and defective. It is considered that this is because the adhesive-side deterioration accelerating factor and the substrate-side deterioration accelerating factor migrated into the coating material of the HF-based electric wire, which resulted in copper damage and a decrease in the antioxidant in the coating material. To be done.

Further, it was determined that the HF adhesive tape of Conventional Product 6 itself had cracks and was defective. It is considered that this is because the deterioration promoting factor on the pressure sensitive adhesive side was transferred from the pressure sensitive adhesive side to the substrate side.

On the other hand, the HF-based electric wires in the wire harnesses of Examples W31 to 36 were not cracked in the winding test on the mandrel. this is,
The effect of containing an adsorbent in the adhesive and the base material, the effect of containing a tackifier made of a specific resin in the adhesive, and the anti-aging agent and copper damage in the adhesive and the base material. It is considered that the effect of the inclusion of the inhibitor was combined.

In addition to the above, in this embodiment,
Since PVC-based electric wire (containing anti-aging agent) is used, P
Even if the plasticizer or the like contained in the covering material of the VC electric wire (containing the anti-aging agent) is transferred to the covering material of the HF electric wire, the deterioration of the covering material of the HF electric wire due to the transfer between the electric wires is prevented. It is understood that the effect of being able to do was also great

On the other hand, regarding the tape winding workability and the paste application property, the HF-based adhesive tapes of Comparative Examples 11 and 12 (containing the antiaging agent and the copper damage inhibitor) were judged to be defective. This is considered to be because the adsorbent was excessively blended. On the other hand, the HF pressure-sensitive adhesive tapes of Examples 31 to 36 (containing the antiaging agent and the copper damage inhibitor) were judged to be good in both tape winding workability and coating paste property. It is understood that this is because the adsorbent was blended in the suitable range.
There was no particular problem with the appearance of the tape. From the above, the overall evaluation of the product of the present invention was determined to be good (◯).

[0260]

[Table 28]

Although the embodiments have been described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, in this example, the adhesive contains an adsorbent, a tackifier made of a specific resin, an antioxidant, a copper damage inhibitor, etc., and an adsorbent, an antioxidant, a copper damage inhibitor, etc. contained in the base material. Although various additives have been described in addition to the above, various additives may be added without departing from the object of the present invention, and there is no particular limitation.

Further, in the above embodiment, the case where the wire bundle of the wire harness is composed of only the electric wire coated with vinyl chloride resin is not particularly mentioned.
Even in this case, the wire harness protection material according to the present invention can be applied.

[0263]

EFFECTS OF THE INVENTION According to the wire harness protective material of the present invention, it is possible to prevent copper damage and decrease of the anti-aging agent in the coating material due to the migration of the adhesive side deterioration promoting factor and the substrate side deterioration promoting factor. Alternatively, by suppressing, it is possible to obtain a tape-shaped wire harness protective material that does not significantly accelerate the deterioration of the wires in the wire bundle of the wire harness, preferably the wires coated with a non-halogen resin. Moreover, according to the wire harness using this wire harness protective material, the wire harness which can maintain quality over a long period of time can be obtained.

Therefore, when such a wire harness protective material and a wire harness are used in a harsh environment such as around the engine of an automobile, the reliability is extremely excellent and the industrial benefits are extremely large. Will be things.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C09J 201/00 C09J 201/00 (72) Inventor Tatsuya Hase 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Denso Co., Ltd. (72) Inventor Yoshiharu Exit 1-14, Nishisuehirocho, Yokkaichi-shi, Mie Sumitomo Wiring Systems Co., Ltd. (72) Inventor Jun Yoshimoto 1-14, Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Denso Incorporated (72) Inventor Motoya Kawakita 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Inc. (72) Inventor Masahisa Ishikawa 1-1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Electric Co., Ltd. In-house (72) Inventor Takamichi Yamashita 1-14 Nishi-Suehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Co., Ltd. F-term (reference) 4J002 BB021 BB111 BB151 BD031 BD041 BD061 BD071 DA016 DA036 DE146 DE236 DJ006 DJ016 DJ036 EJ067 EN077 EQ028 EU168 EU178 EU188 FD037 FD206 FD208 GQ00 4J004 AA04 AA06 AA12 AA18 AB01 CD05 FA04 4J040 DB022 DK012 DN032 EB032 HA026 HA306 JA09 JB09 KA29 NA19 5G309 AA11

Claims (8)

[Claims] 1. A tape-shaped substrate made of a non-halogen resin or vinyl chloride resin having a halogen element content lower than that of a vinyl chloride resin compound or containing no halogen element, and a pressure-sensitive adhesive applied to at least one surface thereof. In the adhesive and / or the substrate,
While containing an adsorbent, in the adhesive,
Hydrogenated terpene resin, aromatic hydrogenated resin, aliphatic hydrogenated resin, coumarone-indene resin, phenolic resin,
A wire harness protective material comprising one or more resins selected from styrene resins as a tackifier. 2. The adsorbent is silica, carbon black or a mixture thereof.
Wire harness protective material described in. 3. The content of the adsorbent in the pressure-sensitive adhesive is 1 to 1 with respect to 100 parts by weight of the pressure-sensitive adhesive main component resin.
Within the range of 50 parts by weight, in the base material, it is within the range of 1 to 150 parts by weight with respect to 100 parts by weight of the base material main component resin, and the content of the tackifier is the main component of the pressure-sensitive adhesive. Resin 1
The wire harness protective material according to claim 1 or 2, wherein the amount is within the range of 10 to 200 parts by weight with respect to 00 parts by weight. 4. The adhesive and / or the base material,
The wire harness protective material according to claim 1, further comprising an antioxidant and / or a copper damage inhibitor. 5. The content of the anti-aging agent contained in the pressure-sensitive adhesive and / or the base material is an electric wire in an electric wire bundle around which the wire harness protective material is wound, and contains the anti-aging agent. 10% to 500% of the content of the antioxidant contained in the coating material of the electric wire coated with the halogen-free resin
And the content of the copper damage inhibitor in the pressure-sensitive adhesive is in the range of 0.001 to 5 parts by weight with respect to 100 parts by weight of the pressure-sensitive adhesive resin component in the base material. The wire harness protective material according to claim 4, wherein the content is within a range of 0.001 to 5 parts by weight with respect to 100 parts by weight of the base resin component. 6. The anti-aging agent contained in the pressure-sensitive adhesive and / or the base material and the anti-aging agent contained in the covering material of the electric wire are of the same kind.
Wire harness protective material described in. 7. A wire harness in which the wire harness protective material according to claim 1 is wound around an outer circumference of an electric wire bundle. 8. An electric wire coated with the wire harness protective material according to claim 1, which is coated with a non-halogen resin containing an antioxidant and having a halogen element content lower than that of a vinyl chloride resin compound or containing no halogen element. A wire harness formed by winding around an outer circumference of an electric wire bundle having at least the above.