JPH09154601A - Shoe, insole and holder pad for strap shoulder hanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide products with excellent slip-proof properties, by using a composition of a block copolymer containing each specific amount of a polymer block of aromatic vinyl compounds and a polymer block of isoprene or isoprene-butadiene, and natural rubber or synthetic rubber. SOLUTION: In a shoe sole into which a sheet polymer composition 3 integrally molded on the grounding side of a rubber molded body 2, a composition 3 consists of 14-45 wt.pts. of a polymer block (A) of aromatic vinyl compounds and 90-55 wt.pts. of an isoprene or isoprene-butadiene polymer block. The bonding form thereof is a block copolymer whose over 80% of carbon-carbon double bonds denoted in (A-B) or (A-B-A) are hydrogenated. Otherwise, a block copolymer added by a composition substantially of an adhesion providing resin and a plasticizer and a composition of a polymer consisting of natural rubber or synthetic rubber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe sole provided with excellent anti-slip properties, a shoe core material, an insole, a shoulder rest portion of a string-like shoulder bag such as a bag, and the like.

[0002]

2. Description of the Related Art Conventionally, a shoe sole provided with anti-slip properties has, for example, a rubber-like elastic resin molded body made of synthetic rubber, polyurethane or the like, which is provided with irregularities of various shapes on the grounding surface or the elasticity of the resin is changed. And it corresponds. In addition, the core material or insole of a shoe may be formed by, for example, forming irregularities of various shapes on a synthetic resin or pulp molded article, or impregnating or applying synthetic rubber or polyurethane on a non-woven molded article. Was using.

Further, in order to improve the ability to be held on the shoulder, the shoulder rest portion of a strap-like shoulder bag such as a bag is made of a felt-like material or a sponge-like material such as polyurethane.

[0004]

However, the conventional anti-slip properties of shoe soles, insoles, etc. are insufficient. For example, if the elasticity of the rubber-like resin is increased to improve the anti-slip properties of the rubber sole, the walking property is improved. Is deteriorated, and performance relating to strength such as scratch strength and abrasion strength is deteriorated, which is not preferable. In addition, since the core material and insole are not provided with special anti-slip properties, it is uncomfortable to wear if the shoes are not sized properly. Occasionally, there is a case where the user cannot walk comfortably.

Further, sponge-like materials such as polyurethane and felt-like materials are attached as anti-slip materials to the shoulder rests of conventional shoulder bags, ricksacks, camera cases, etc., but the anti-slip properties are insufficient. I have a problem that I often slip off my shoulder.

[0006] An object of the present invention is to provide a product in which excellent anti-slip properties are imparted to the insole of the shoe, the core material, the sole of the shoe, the shoulder pad portion of the strap-like shoulder bag, and the like.

[0007]

According to the present invention, the polymer block (A) of an aromatic vinyl compound is 10 to 45% by weight, and the polymer block (B) of isoprene or isoprene-phthaldiene is 90 to 55% by weight. And a block copolymer in which 80% or more of the carbon-carbon double bonds of the polymer whose bond form is represented by (AB) or (ABA) is hydrogenated, or the block copolymer 100 to 35% by weight of a block copolymer composition in which a composition containing a tackifying resin and optionally a plasticizer as a main component is added to the polymer;
A shoe characterized in that a polymer composition comprising 0 to 65% by weight of a natural rubber or synthetic rubber composition is applied to a shoe core material.

Further, the present invention is a shoe characterized in that at least the ground contact surface of the shoe sole or the entire shoe sole is constituted by the above-mentioned polymer composition.

Further, the present invention is an insole characterized in that the composition of the above polymer is applied to the insole of the shoe.

Furthermore, the present invention is a shoulder rest for a string-like shoulder rest, characterized in that the composition of the above-mentioned polymer is applied to the shoulder rest part for the string-like shoulder rest such as a bag.

The aromatic vinyl compound constituting the polymer block (A) of the block copolymer of the present invention (hereinafter referred to as a copolymer) is, for example, styrene, α-methylstyrene, o-methylstyrene, m. -Methyl styrene, p-methyl styrene, 1,3-dimethyl styrene, vinyl naphthalene, etc. are mentioned, and they are 1 type or 2 types of vinyl compounds selected from these compounds. Preferred is styrene or α-methylstyrene.

The polymer block (A) of the copolymer
The binding form of (B) is (AB) or (ABAA)
And the composition ratio of the copolymer is the polymer block (A) /
The range of 10/90 to 45/55% by weight of (B) is preferable from the viewpoint of various physical properties such as flexibility, impact resistance and thermal characteristics. When the polymer block (A) is less than 10% by weight,
For example, the initial modulus may be low, the elongation may be high, the hardness may be low, etc., and thus it may not be suitable for a shoe sole, for example. On the other hand, when the amount of the polymer block (A) is more than 45% by weight, the polymer block becomes hard and slip resistance is lowered, which is not preferable in some cases. Further, 80% or more of the carbon-carbon double bonds of this copolymer are hydrogenated to obtain a hydrogenated block copolymer (hereinafter referred to as a hydrogenated copolymer). If the hydrogenation rate is less than 80%, the compatibility with other resins may be deteriorated, the thermal characteristics and the weather resistance may be deteriorated, and further, the slip resistance may change over time, which is not preferable.

The above hydrogenated copolymers include, for example,
Rosin ester, hydrogenated rosin ester, terpene resin, hydrogenated terpene resin, terpene phenol resin,
50 to 180 parts by weight of a tackifying resin selected from coumarone resin, alicyclic saturated hydrocarbon resin, aliphatic petroleum resin and the like is added to 100 parts by weight of the hydrogenated copolymer, for example, paraffin. -Based process oil, hydrogenated liquid isoprene-butadiene copolymer, fatty acid ester,
A plasticizer selected from aliphatic dibasic acid ester, epoxidized soybean oil, epoxy stearic acid ester, etc. is added in an amount of 0 to 100 parts by weight based on 100 parts by weight of the hydrogenated copolymer to obtain flexibility and friction resistance. , The adhesiveness and touch can be adjusted. However, if the addition amount of these increases, the action as an adhesive becomes stronger, and a sticky feeling stronger than the property as a slip preventive material appears, which is not preferable. Further, the hydrogenated copolymer may be a hydrogenated copolymer composition obtained by adding a deterioration inhibitor, a colorant and the like.

Further, in the present invention, depending on the application conditions of the hydrogenated copolymer, a composition of a polymer obtained by adding a composition of natural rubber or synthetic rubber to the hydrogenated copolymer or the composition of the hydrogenated copolymer is used. It may also be preferable to do so. Examples of the synthetic rubber used include isoprene rubber, butadiene rubber, styrene-butadiene rubber, acrylonitrile-butadiene rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, ethylene-
Butylene rubber, polyurethane rubber, chloroprene rubber, etc. The composition ratio of the hydrogenated copolymer or the hydrogenated copolymer composition and the composition of the natural rubber or the synthetic rubber is 100/0 for the hydrogenated copolymer or the hydrogenated copolymer composition / rubber composition. ˜35 / 65 wt%.
If the amount of natural rubber or synthetic rubber in the composition of this polymer exceeds 65% by weight, the anti-slipping effect may decrease.

The hydrogenated copolymer of the present invention is, for example,
A hydrogenated copolymer solution can be prepared by dissolving benzene, toluene, xylene, hexane, cyclohexane, chloroform, dichloroethane, petroleum ether or the like at a room temperature or under heating. This hydrogenated copolymer solution can be made into a hydrogenated copolymer composition by adding the above-mentioned tackifying resin, plasticizer and various additives. Furthermore,
The hydrogenated copolymer is mechanically kneaded with various mixers in a non-heated state, a heated state, or a cooled state by mechanically kneading with the tackifying resin, plasticizer, and various additives, and the hydrogenated copolymer composition is obtained. It can be a thing. Also, when preparing a polymer composition from a hydrogenated copolymer or a hydrogenated copolymer composition and various rubbers, it can be prepared by a mixing method which usually produces a rubber composition.

The method of using the polymer composition of the present invention as an anti-slip material is as follows. In the shoe sole, a polymer composition layer having a constant thickness, preferably 0.5 to 3 mm, is provided on the ground contact surface side of the shoe sole. Conventional shoe sole molding methods, such as integrally molding into a rubber shoe sole molding or molding the entire shoe sole with a polymer composition, for example,
Mold by molding or heat molding.

The core material of a shoe, an insole, or a shoulder rest portion of a string-like shoulder bag such as a bag is formed by melting the polymer composition into a powder or pellet and molding it by a melt molding method or a heat molding method. Or a method of applying a film-like material having a thickness of 0.5 to 30 μm formed by a casting method of a solution or a dispersion liquid to the surface of a core material, an insole material, a shoulder rest portion of a string-like shoulder bag such as a bag,
A method of applying or impregnating a solution or dispersion of a polymer composition onto a core material, an insole, a shoulder rest portion of a string-like shoulder bag such as a bag, and attaching the polymer composition to at least a part of the surface of the member. Done in. Alternatively, a core composition, an insole, or a shoulder rest portion of a string-shaped shoulder bag such as a bag formed directly from the polymer composition by the above-mentioned molding method can be used. The term "insole" used in the present invention is a general term for so-called insoles, cup insoles, etc. that are used by being mounted inside shoes.

Bags and the like having a string-like shoulder bag provided with slip resistance using the polymer composition of the present invention include, for example, shoulder bags, Boston bags, camera cases and camera bags, rucksacks, attache cases. Those with a shoulder function, such as items, are targeted. Incidentally, the "string-like shoulder" referred to in the present invention is a so-called rope-like or string-like thing, and is a general term for those having a belt-like shoulder-hanging function having a width and thickness corresponding to the size and shape of bags,
“Shoulder rest” is a generic term for a portion of the string-like shoulder rest that contacts the shoulder and a movable shoulder rest that is attached to the string-like shoulder rest.

[0019]

In the present invention, by using the composition of the polymer mainly composed of the hydrogenated copolymer, it is possible to increase the friction resistance with the cloth or the skin without having a so-called adhesive feeling. It is possible to obtain good slip resistance.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a shoe sole, a shoe core material, an insole, and a shoulder rest portion of a string-like shoulder bag such as a bag of the present invention will be described with reference to the drawings and embodiments. In the examples,% and parts relate to weight unless otherwise specified.

First, the present invention will be described with reference to the drawings. FIG.
FIG. 1 is a schematic cross-sectional view of an anti-slip shoe sole using the polymer composition of the present invention. FIG. 1 (1) shows that a sheet-shaped polymer composition 3 is integrally molded on the ground surface side of a rubber molded body 2. Figure 1 with sole 1
(2) is a shoe sole 1 formed by molding a polymer composition.
FIG. 2 is a schematic partial cross-sectional view of a shoe equipped with a slip-resistant core material provided with the polymer composition of the present invention, and a partial cross-section of a shoe using the core material 4 coated with the polymer composition 5. 1 in the schematic diagram
Is a shoe sole, 6 is a cover, and 7 is a backing. FIG. 3 is a schematic cross-sectional view of an anti-slip insole using the polymer composition of the present invention, and FIG. 3 (1) shows an insole having the film-like polymer composition 9 applied to the surface of the insole 8. 3 (2) is an insole having the surface of the insole 8 coated and impregnated with the polymer composition 10. And, FIG. 4 is a schematic cross-sectional view of a string-like shoulder rest equipped with a slip-resistant shoulder rest part using the polymer composition of the present invention. It is a movable shoulder rest part coated and impregnated with the composition 10.

Example 1 Polystyrene block (A) was 13% and polyisoprene-butadiene block (weight ratio 67:33) (B) was 8%.
A hydrogenated copolymer-I having a hydrogenation rate of 97% and a block copolymer of 7% was used, and the hydrogenated copolymer was dissolved in toluene to prepare a 20% hydrogenated copolymer solution (solution viscosity is about 7 P / 30 ° C)
Was prepared. This hydrogenated copolymer solution was applied to one surface of a binder resin-impregnated non-woven fabric raw material to be used as a sock lining material by a roll coating method so that the amount of the hydrogenated copolymer was about 26 g / m ² and dried. The sheet-like material obtained by the above was press-molded on the insole. On the other hand, for comparison, 20% butadiene rubber
Using a toluene solution, the same process as in Example 1 was carried out to mold a shoe insole.

Wearing shoes with these two types of insoles and selecting three people each wearing nylon socks and polyester-nylon-blend socks, a sensory test of gait by normal walking and fast walking is carried out. As a result, the shoes fitted with the insole of the example did not feel slipping in the shoes during walking, and it was easy to walk and did not get tired. When the insole became dirty, it could be removed, washed with water and dried, and then reattached for use, and the effect of anti-slip property was good with almost no change even after repeated washing with water.

Example 2 20 parts of a hydrogenated copolymer composition comprising 100 parts of hydrogenated copolymer-I of Example 1, 100 parts of a tackifier (hydrogenated terpene resin) and 15 parts of paraffin oil. % Toluene solution is used to form a film-like water film having an average thickness of about 30 μm formed on the surface of a sheet-shaped shoe core material-I made of a polyolefin resin molding and a sheet-shaped shoe core material-II made of cardboard by a casting method. The additive copolymer composition was applied by the transfer method. The obtained sheet-shaped shoe core material was die-cut and used as a core material for women's shoes to make shoes, and an insole was attached to obtain a product. In each of the women's shoes, any of the core materials was easy to walk without feeling slippage in the shoes during walking, as compared with the women's shoes made of the untreated core material.

Example 3 A block copolymer having a polystyrene block (A) content of 35% and a polyisoprene-butadiene block (B) content of 65%, which is a hydrogenated copolymer-II having a hydrogenation rate of 95%, is used. The solution viscosity of the polymer 20% toluene solution is about 62 P / 30.
°. 65% of hydrogenated copolymer-II and 35% of polyester polyurethane are charged into a mixer, rubber compounding agents are further added, and the mixture is heated and kneaded and extruded by a twin-screw extruder for indoor sports such as basketball shoes. I used it as the sole of my shoes. As a result of using this indoor sports shoe, the friction resistance with the floor plate was higher, the anti-slip effect was exhibited, and the movement was easier than that of the conventional shoe with a polyurethane sole.

Example 4 Using the hydrogenated copolymer-I of Example 1, hydrogenated copolymer 10
0 part and tackifier (alicyclic saturated hydrocarbon resin) 100
Parts and 1 part of a phenol-based deterioration inhibitor were dissolved in toluene to prepare a 20% resin concentration solution containing a hydrogenated copolymer. On the other hand, the prepared hydrogenated copolymer composition solution was applied by brush to the inside of the shoulder portion of the synthetic leather belt-shaped shoulder bag of the shoulder bag and dried to prepare a shoulder bag in which the anti-slip material was applied to the shoulder bag portion. The anti-slip material-coated portion of this shoulder bag had a moist feel, but did not have a sticky feeling, had a high friction resistance with a cloth, was stable in practical use, and was less likely to slip off.

[0027]

INDUSTRIAL APPLICABILITY According to the present invention, a molded article using a polymer composition mainly composed of a hydrogenated copolymer has a high frictional resistance with a cloth or skin without a tackiness like an adhesive. It is possible,
Good anti-slip properties can be obtained without soiling or damaging the contacted object. Also, a shoe sole using the composition of the polymer,
A shoe equipped with a shoe core material or an insole can provide good walking characteristics. In addition, the shoulder rest of the string-like shoulder rest has an effect of maintaining a stable shoulder rest. Furthermore, it can be used without damaging the anti-slip effect even after repeated washing with water.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view of an anti-slip shoe sole using the polymer composition of the present invention.

FIG. 2 is a schematic partial cross-sectional view of a shoe equipped with a slip resistant core material provided with the polymer composition of the present invention.

FIG. 3 is a schematic sectional view of an anti-slip insole using the polymer composition of the present invention.

FIG. 4 is a schematic view of a shoulder rest portion of a strap-like shoulder bag such as a shoulder bag equipped with an anti-slip shoulder rest portion using the polymer composition of the present invention.

[Explanation of symbols]

 1 shoe sole 2 rubber molding 3 sheet polymer composition 4 core material 5 coated polymer composition 6 covering 7 backing 8 insole 9 film polymer composition 10 coated / impregnated polymer composition Composition 11 String-like shoulder 12 Shoulder rest

Claims (4)

[Claims] 1. The aromatic vinyl compound polymer block (A) is 10 to 45% by weight, and the isoprene or isoprene-butadiene polymer block (B) is 90 to 55% by weight, and the bonding form is (A). -B) or (A-
80 of the carbon-carbon double bond of the polymer represented by B-A)
100 to 35% by weight of a block copolymer having a hydrogenation ratio of not less than 100%, or a block copolymer composition obtained by adding a composition mainly containing a tackifying resin and optionally a plasticizer to the block copolymer. %, A polymer composition comprising 0 to 65% by weight of a natural rubber or synthetic rubber composition is applied to a shoe core material. 2. A shoe characterized in that at least the grounding surface of the shoe sole or the entire shoe sole is constituted by the polymer composition according to claim 1. 3. An insole obtained by applying the composition of the polymer according to claim 1 to an insole of a shoe. 4. A shoulder rest for a strap-like shoulder rest, wherein the polymer composition according to claim 1 is applied to a shoulder rest portion for a strap-like shoulder rest such as a bag.