KR100934342B1 - Acrylic form tape composition for double-side having self adhesion property, aromatic pad composition using acrylic form, and a method for preparing pad - Google Patents

Abstract

PURPOSE: A double-sided acrylic form tape composition is provided to ensure excellent environmental resistance, low change of properties, and to be usable in indoor due to hardly odor. CONSTITUTION: A double-sided acrylic form tape composition comprises a monofunctional acrylic monomer 25~99 wt%, a functional monomer 1~75 wt% containing hydroxyl or organic acid, based on the mixture of the monofunctional acrylic monomer and functional monomer, a crosslinkable monomer or oligomer containing at least one a double bond, a photoinitiator and thermal initiator 0.1~5 parts by weight, and additives 0.1~50 parts by weight.

Description

Acrylic Form Tape Composition for Double-Side having self adhesion property, Aromatic Pad Composition using Acrylic Form, and a Method for Preparing Pad}

The present invention relates to a double-sided acrylic foam tape composition having a self-adhesive, a directional pad composition using an acrylic foam and a method for producing a pad using the pad composition, more specifically, an odorless double-sided acrylic foam cured by ultraviolet rays It relates to a tape composition and a directional pad composition and a method for producing the pad using the same.

In general, there are two or three types of fragrances, which are spray-type sprayed by adding volatile solvent, lamp type volatilized by using hot air, and gelling-type solidified type. Among them, the solidified type mainly uses waxes or oil gelling agents. Waxes are less commercially available, such as odor change or brown color by sun light or UV light over time. The gelling agent remaining after the smell of the back remains in powder form, which is poor in appearance. Therefore, a new type that does not change the appearance and color even after the fragrance is required to be devised, and if it is sticky, it can be easily attached and detached on the mirror, glass, and smooth surface.

On the other hand, the conventional acrylic foam tape has a problem that a bad smell of the raw material occurs even after the production of the acrylic foam tape due to the strong odor (odor) of the acrylic monomer as a raw material, and thus most acrylic foam tape and processed products using the same If there is a problem difficult to use indoors.

In addition, in order to manufacture the directional pad using the acrylic foam tape composition, the existing acrylic foam tape composition has a problem that is difficult to be applied to the directional pad due to its inherent odor.

The present inventors have repeatedly studied and experimented and proposed the present invention as a result, the present invention is an acrylic monomer having a characteristic of odorless or almost unrecognized, a polyfunctional monomer having two or more double bonds or It is to provide an odorless acrylic foam double sided tape composition having excellent environmental resistance and little change over time in physical properties obtained by irradiating UV-cured mixtures prepared using oligomers, photoinitiators and additives.

In addition, the present invention by adding a fragrance component (synthetic fragrance, natural fragrance, etc.) to the acrylic foam composition to cure by irradiating UV light, it can be used as a fragrance having adhesiveness while maintaining a certain level of directionality and transparency for a long time It is to provide a directional pad composition and a method for producing the pad.

Double-sided acrylic foam tape composition of the present invention for achieving the above object is a monofunctional acrylic monomer composed of one or more mixture: 25 ~ 99wt%, functional monomer containing hydroxy or organic acid: 1 ~ 75wt%, Regarding the monofunctional acrylic monomer and the functional monomer mixture, a crosslinkable monomer or crosslinkable oligomer containing two or more double bonds: 0.05 to 5 parts by weight, photoinitiator and thermal initiator: 0.1 to 5 parts by weight, additives: 0.1 to 50 The aromatic pad composition using the acrylic foam of the present invention, which is composed of parts by weight, and to achieve the above object, is a monofunctional acrylic monomer composed of at least one mixture: 1 to 99 wt%, hydroxy or organic acid. Functional monomer containing: 1 to 99wt%, and containing two or more double bonds to the monofunctional acrylic monomer and the functional monomer mixture Crosslinkable monomer or crosslinkable oligomer: 0.05 ~ 95p, a photoinitiator and a thermal initiator and 0.1 to 5 parts by weight, additive: 0.5 to 100 parts by weight of fragrance: characterized by comprising from 0.5 to 500 parts by weight.

Hereinafter, the present invention will be described in more detail.

The present invention as described above relates to a composition forming an acrylic foam layer, that is, a odorless acrylic foam layer having a predetermined thickness and an acrylic foam layer containing an aromatic component in an acrylic foam tape or an directional pad.

The acrylic foam layer may comprise at least one acrylic monomer of a monofunctional monomer having one double bond inside the molecule, at least one polyfunctional monomer or oligomer of two or more double bonds inside the molecule, and at least one photoinitiator. Or / and a thermal initiator, and additives such as thickeners and tackifying resins are used if necessary. In addition, in order to use it as a directional pad, a directional pad can be manufactured by adding the fragrance which has a directionality.

As the odorless acrylic monomer that can be used in the present invention, the following may be used, and these may be used alone or in mixture of two or more thereof.

First, the monofunctional acrylic monomer is an odorless acrylic monomer having 11 or more carbon atoms, specifically, lauryl acrylate, dodecyl acrylate, lauryl methacrylate, dodecyl methacrylate and mixtures thereof, ethylene oxide And ethoxy acrylate, ethoxy ethoxy acrylate, ethoxy ethoxy ethyl acrylate, ethoxy triethylene glycol acrylate, polyethylene glycol (400) monomethyl isacrylate, polyethylene Glycol (1000) monomethyl isacrylate, ethoxylate (4) noryl phenyl acrylate, ethoxylate (8) noryl phenyl acrylate, ethoxy methacrylate, ethoxy ethoxy methacrylate, ethoxy ethoxy Ethyl methacrylate, ethoxytriethylene glycol methacrylate, polyethyl Lenglycol (400) monomethyl isamethacrylate, molethylene glycol (1000) monomethyl isamethacrylate, ethoxylate (4) noryl phenyl methacrylate, ethoxylate (8) noryl phenyl methacrylate and its As the derivative, an acrylic monomer having an amount of 1 to 50 ethylene oxide or propylene oxide group present in the monomer may be mentioned.

Next, the functional monomer contains a hydroxy or an organic acid, the functional acrylic monomer having a hydroxy group is 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acryl Acrylate, 2-hydroxypropyl methacrylate, 4-hydroxybutyl acrylate, 4-hydroxybutyl methacrylate, and the functional acrylic monomer which has the said organic acid group is acrylic acid, methacrylic acid, maleic anhydride. And itaconic acid, etc. are mentioned, These can be used individually or in mixture of 2 or more types.

The monofunctional acrylic monomer and the functional monomer are 25 to 99 wt% of the acrylic monomer, and 1 to 75 wt% of the functional monomer containing hydroxy or organic acid in the case of the acrylic foam tape, and the aromatic pad In the case of 1 to 99wt% of the monofunctional acrylic monomer, 1 to 99wt% of the functional monomer containing hydroxy or organic acid. This means that when the monofunctional acrylic monomer deviates from the above upper limit (i.e., when the functional monomer deviates from the lower limit), the polarity of the components constituting the acrylic foam and the aroma sheet is lowered, thereby significantly reducing the adhesion to the polar adhered surface, There is a problem that the hydrogen bonding force between the components is lowered and the strength of the acrylic foam and the directional pad is also significantly lowered. If the functional monomer is out of the above upper limit (that is, if the monofunctional acrylic monomer is out of the lower limit), the acrylic foam and It is because there exists a problem that the polarity and hydrogen bonding force of the component which comprise an aromatic pad reel become excessive, and the adhesive force of an acrylic foam and an aromatic pad is lost and it becomes hard more than necessary.

A crosslinkable monomer or crosslinkable oligomer containing two or more double bonds, a photoinitiator, a thermal initiator, and an additive are added to the monofunctional acrylic monomer and the functional monomer mixed in the above ratios. Is added further. At this time, the added material is based on 100% by weight of the monofunctional acrylic monomer and the functional monomer mixture in each weight part (e.g., when the amount of the monofunctional acrylic monomer and the functional monomer mixture is 100, In the case of addition, 10 weight part of crosslinkable monomers shall be added.) It is added.

First, in the case of double-sided acrylic foam tape, 0.05 to 5 parts by weight of a crosslinkable monomer or crosslinkable oligomer containing two or more double bonds, 0.1 to 5 parts by weight of a photoinitiator and a thermal initiator, and 0.1 to 50 parts by weight of an additive Is preferably added.

When the crosslinkable monomer or crosslinkable oligomer containing two or more double bonds is less than 0.05 part by weight, the components constituting the acrylic foam do not form an adequate level of the polymer network by ultraviolet irradiation, and thus the strength of the acrylic foam is significantly reduced. When the acrylic foam is removed, there is a problem that it is difficult to maintain the shape, and when the acrylic foam is removed, the adhesive force is too high to remove it from the adhered surface. There is a problem that excessively forming a network, the adhesive force is significantly reduced.

If the photoinitiator and the thermal initiator is less than 0.1 part by weight, the components constituting the acrylic foam are not sufficiently reacted by ultraviolet irradiation, so that unreacted monomers are generated, thereby significantly reducing the physical properties such as adhesive properties and sheet strength of the acrylic foam. If the amount exceeds 5 parts by weight, the odor of the photoinitiator and the thermal initiator is generated after UV irradiation, and yellowing occurs.

If the additive is less than 0.1 part by weight, the adhesive force is lowered, and if it is more than 50 parts by weight, yellowing and elasticity of the acrylic foam are deteriorated.

Next, in the case of the aromatic pad, 0.05 to 95 parts by weight of a crosslinkable monomer or crosslinkable oligomer containing two or more double bonds, 0.1 to 5 parts by weight of a photoinitiator and a thermal initiator, 0.5 to 100 parts by weight of an additive, and aroma It is preferable to add 0.5-500 weight part. If the crosslinkable monomer or crosslinkable oligomer containing two or more double bonds is less than 0.05 part by weight, the strength of the directional pad is significantly lowered, which makes it difficult to handle the directional pad and to remove it from the adhered surface. If the weight part is exceeded, there is a problem that the network becomes excessive and the directional pad loses adhesive force.

If the photoinitiator and the thermal initiator is less than 0.1 part by weight, the acrylic components constituting the directional pad are not sufficiently reacted by ultraviolet irradiation, so that unreacted monomers are generated, thereby significantly reducing physical properties such as adhesive properties and strength of the directional pad. If the amount exceeds 5 parts by weight, the odor and yellowing of the photoinitiator and the thermal initiator after the ultraviolet irradiation are generated.

If the additive is less than 0.5 parts by weight, the adhesive force is lowered, the viscosity of the aroma pad composition is lowered, there is a problem that the coating is difficult, and if it exceeds 100 parts by weight there is a problem that yellowing occurs in the directional pad and the elasticity is reduced.

If the fragrance is less than 0.5 parts by weight, the fragrance is too weak. If the fragrance is more than 500 parts by weight, the terms of the low-molecular liquid phase are excessively excessive, making it difficult to maintain the shape as the directional pad and the adhesive force is significantly reduced.

There is no particular limitation on the crosslinkable monomer or oligomer, and in general, both of the acrylate or methacrylate derivatives in which two or more double bonds are present in the molecule may be used.

As the photoinitiator, compounds capable of forming radicals by absorbing UV such as ketals, ketones, acetophenones, sulfites, benzoates, benzophenones, phosphines, and ethanones can be used without distinguishing the type. These may each be used alone or in the form of a mixture of two or more thereof. In addition to the photoinitiator, a thermal initiator that is initiated by heat can be used together. The thermal initiator is initiated by the heat of polymerization generated when the reaction is initiated by the start of the photoinitiator, and can be used as an auxiliary initiator to reduce the amount of the relatively expensive photoinitiator. As such a thermal initiator, peroxide-based, azo-based, ketal-based, hemi-ketal-based, etc. may be used, and the decomposition temperature is preferably about 30 to 100 ° C.

The additive may include a thickener and / or a tackifying resin. The thickener may be a rubber and a derivative thereof that can be dissolved in the monomer and the polyfunctional monomer, and more specifically, an acrylic rubber. As the rosin ester, rosin ester resin, terpene phenol, zylene, noblock resin, aldehyde resin, C5 and C9 petroleum resin and the like can be used.

The scents used in the aromatic pads are largely non-polar oils and polar oils. Non-polar oils include lavender oil, wood-based sandalwood, chamomile, and polar oils such as fruity neroli, Compound fragrances (combined fragrances) such as lemon, citrus and oranges of the peach and citrus series are used, and these are used alone or in combination.

Making a tape and a pad using the composition described above can be carried out using conventional methods. As a representative example, an odorless acrylic foam having adhesive strength can be prepared by preparing a mixed solution that can be cured by ultraviolet rays and irradiating ultraviolet rays by pouring the coating or mold to have a predetermined thickness. Such an acrylic foam may be manufactured in the form of a general acrylic adhesive tape using a breathable support or a substrate, may be made in the form of an acrylic foam containing no substrate, or may be made of a product in the form of a directional pad or a tape. have. For example, it can be produced in the form of the directional pad as shown in FIG. 1 and the acrylic foam tape as shown in FIG.

In addition, the directional pad can be used not only for industrial, industrial, household goods, but also processed into a form that can be attached to clothes or a part of the body, that is, it can be attached to a collar or a wrist to replace perfume.

In the case of the acrylic foam tape manufactured by the composition according to the present invention and the processed product using the same, there is no problem that a bad smell occurs and can be easily used indoors. It is also possible to apply the fragrance by using the acrylic foam tape composition as an directional pad. The pad is close to the solidification of the fragrance, but in the form or method thereof, it is possible to have a completely different form from the solidification and to remove the fragrance. There is no deposit left on the adherend, which can be different from ordinary adhesive tape or pads. In addition, the directional pad may be manufactured in a form that can be attached to household items, clothes, body, etc., and may be used as a substitute for perfume.

Hereinafter, the present invention will be described in more detail with reference to Examples. Embodiments according to the present invention can be modified in many different forms, the scope of the present invention is not limited to the embodiments described below.

< Example  1>

This example is for confirming the adhesive force and odor (odor) of the odorless acrylic foam composition according to the present invention.

To the odorless acrylic foam was prepared in the composition shown in Table 1. In this case, the monofunctional acrylic monomer used is EEEA, the functional monomer containing hydroxy is 2-HEA, the crosslinkable monomer containing two or more double bonds is M3160 manufactured by Miwon Corporation, and the photoinitiator is CP of Miwon Corporation. -4, and the thickener used acrylic rubber. On the other hand, the acrylic foam was prepared in the composition shown in Table 2 in the conventional composition for producing an acrylic foam.

For each of the foams prepared, the adhesive force and the odor were checked. The results are shown in Tables 1 and 2 below with respect to ◎, excellent case ○, normal case △, and poor case ×.

Inventive Example 1 Inventive Example 2 Inventive Example 3 Ethoxyethoxyethylacrylate (EEEA) (g) 30 30 50 2-HEA (g) 70 70 50 M3160 (Miwon Corporation) (g) 0.05 5 2.5 CP-4 (Miwon Corporation) (g) 3 3 3 Acrylic rubber (g) 2 2 2 adhesiveness ◎ ○ ◎ Odor (smell) ◎ ◎ ◎

Conventional Example 1 Conventional Example 2 Conventional Example 3 2-Ethylhexylacrylate (g) 100 - 50 Butylacrylate (g) - 100 50 Acrylic Acid (g) 10 10 10 M300 (Miwon Corporation) (g) One One One CP-4 (Miwon Corporation) (g) 3 3 3 adhesiveness ◎ ◎ ◎ Odor (smell) × × ×

As can be seen in Table 1, the odorless acrylic foam (Invention Examples 1 to 3) satisfying the composition of the present invention was all very excellent in the odor, and was generally excellent also in the adhesive force. On the contrary, although the conventional examples 1-3 of Table 2 were excellent in adhesive force, all were bad in odor.

< Example  2>

This embodiment is to confirm the appropriate content range of each component constituting the odorless acrylic foam composition, to confirm the aromaticity.

To prepare a odorless acrylic foam in each of the compositions shown in Table 3 below. For each of the foams prepared, the adhesive force was confirmed and shown in Table 3 below with ◎, when excellent, ○ when normal, △ when normal, and × when poor. In addition, the direction duration time was measured and shown in Table 3 below.

Inventive Example a Inventive Example b Inventive Example c Comparative Example a Comparative Example b Comparative Example c Ethoxyethoxyethylacrylate (EEEA) (g) 90 10 50 90 10 50 2-HEA (g) 10 90 50 10 90 50 M3160 (Miwon Corporation) (g) 15 15 15 100 0.02 15 CP-4 (Miwon Corporation) (g) 3 3 3 3 3 0.05 Acrylic rubber (g) 2 2 2 2 2 2 Incense (g) 100 100 100 100 100 100 adhesiveness ◎ ○ ◎ × Poor bridge Poor bridge Direction duration (month) 2 months 3 months 3 months - - -

As can be seen in Table 3, the odorless acrylic foam (Invention Examples a to c) satisfying the composition of the present invention was very excellent or excellent in the adhesive force, the aromatic duration time was also excellent about 2 to 3 months. On the contrary, Comparative Example a in which the content of the functional monomer containing hydroxy was added more than the conditions of the present invention was poor in adhesion, and the content of the functional monomer containing hydroxy was less than the conditions of the present invention. Comparative Example b showed crosslinking defects. In addition, Comparative Example c in which the content of the photoinitiator was added less than the conditions of the present invention also showed crosslinking failure.

1 schematically shows a pad in the form of an acrylic foam, which does not comprise a support, by the method of the invention.

FIG. 2 is a view schematically showing a product in the form of an acrylic adhesive tape using a breathable support by the method of the present invention.

Claims (19)

The double bond is based on 25 to 99 wt% of the monofunctional acrylic monomer, 1 to 75 wt% of the functional monomer containing hydroxy or organic acid, and 100 parts by weight of the above-mentioned mixture of the monofunctional acrylic monomer and the functional monomer. 0.05 to 5 parts by weight of a crosslinkable monomer or crosslinkable oligomer containing two or more, 0.1 to 5 parts by weight of a photoinitiator and a thermal initiator, and 0.1 to 50 parts by weight of an additive is further included. The monofunctional acrylic monomer is an ethoxy acrylate, ethoxy eth as an acrylic monomer composed of lauryl acrylate, dodecyl acrylate, lauryl methacrylate, dodecyl methacrylate and mixtures thereof, ethylene oxide and propylene oxide derivatives. Ethoxyacrylate, ethoxyethoxyethyl acrylate, ethoxytriethylene glycol acrylate, polyethylene glycol (400) monomethyl isacrylate, molethylene glycol (1000) monomethyl isacrylate, ethoxylate (4) Noryl phenyl acrylate, ethoxylate (8) Noryl phenyl acrylate, ethoxy methacrylate, ethoxy ethoxy methacrylate, ethoxy ethoxy ethyl methacrylate, ethoxy triethylene glycol methacrylate, polyethylene Glycol (400) monomethyl isamethacrylate, Molyethylene glycol (1000) monomethyl Sumetaacrylate, ethoxylate (4) noryl phenyl methacrylate, ethoxylate (8) noryl phenyl methacrylate, and derivatives thereof, containing 1 to 50 ethylene oxide or propylene oxide groups A double-sided acrylic foam tape composition, characterized in that it is a single or a mixture of two or more selected from the acrylic monomer having. delete The method of claim 1, The functional monomer containing hydroxy is 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 4-hydroxybutyl acryl A double-sided acrylic foam tape composition, characterized in that it is a single or a mixture of two or more selected from latex, 4-hydroxybutyl methacrylate. The method of claim 1, The functional monomer containing the organic acid is a double-sided acrylic foam tape composition, characterized in that one or a mixture of two or more selected from acrylic acid, methacrylic acid, maleic anhydride, itaconic acid. The method of claim 1, The crosslinkable monomer or crosslinkable oligomer containing two or more double bonds is a double-sided acrylic foam tape composition, characterized in that it uses an acrylic or methacryl derivative having two or more double bonds in the molecule. The method of claim 1, The photoinitiator is a compound selected from ketals, ketones, acetophenones, sulfites, benzoates, benzophenones, phosphines, and ethanones alone or as a mixture of two or more thereof, which is a compound capable of absorbing ultraviolet rays to form radicals. Double-sided acrylic foam tape composition, characterized in that. The method of claim 1, The thermal initiator is a double-sided acrylic foam tape composition, characterized in that the material capable of forming radicals by heat selected from peroxide-based, azo-based, ketal-based, hemi-ketal-based. The method of claim 1, The additive is composed of a single or a combination of a thickener and a tackifying resin, the thickener is a single or a mixture of two or more selected from rubber-based compounds of acrylic rubber, SBS rubber, natural rubber, butyl rubber, the tackifying resin is rosin Double-sided acrylic foam characterized in that it is a single or a mixture of two or more selected from ester type, rosin ester resin type resin, terpene phenol type, zylene type, noblock resin, aldehyde resin, C5 type and C9 type tackifying resin. Tape composition. Based on 1 to 99 wt% of monofunctional acrylic monomer, 1 to 99 wt% of functional monomer containing hydroxy or organic acid, and 100 parts by weight of the above-mentioned mixture of monofunctional acrylic monomer and functional monomer, double bond 0.05 to 95 parts by weight of a crosslinkable monomer or crosslinkable oligomer containing two or more, 0.1 to 5 parts by weight of photoinitiator and thermal initiator, 0.5 to 100 parts by weight of additives, and 0.5 to 500 parts by weight of fragrance are further included. , The monofunctional acrylic monomer is an ethoxy acrylate, ethoxy eth as an acrylic monomer composed of lauryl acrylate, dodecyl acrylate, lauryl methacrylate, dodecyl methacrylate and mixtures thereof, ethylene oxide and propylene oxide derivatives. Ethoxyacrylate, ethoxyethoxyethyl acrylate, ethoxytriethylene glycol acrylate, polyethylene glycol (400) monomethyl isacrylate, molethylene glycol (1000) monomethyl isacrylate, ethoxylate (4) Noryl phenyl acrylate, ethoxylate (8) Noryl phenyl acrylate, ethoxy methacrylate, ethoxy ethoxy methacrylate, ethoxy ethoxy ethyl methacrylate, ethoxy triethylene glycol methacrylate, polyethylene Glycol (400) monomethyl isamethacrylate, Molyethylene glycol (1000) monomethyl Sumetaacrylate, ethoxylate (4) noryl phenyl methacrylate, ethoxylate (8) noryl phenyl methacrylate, and derivatives thereof, containing 1 to 50 ethylene oxide or propylene oxide groups Aromatic pad composition using an acrylic foam, characterized in that the single or a mixture of two or more selected from the acrylic monomer having. delete The method of claim 9, The functional monomer containing hydroxy is 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 4-hydroxybutyl acryl A directional pad composition using an acrylic foam, characterized in that the sole, or a mixture of two or more selected from 4-hydroxybutyl methacrylate. The method of claim 9, The functional monomer containing the organic acid is an aromatic pad composition using an acrylic foam, characterized in that one or a mixture of two or more selected from acrylic acid, methacrylic acid, maleic anhydride, itaconic acid. The method of claim 9, The crosslinkable monomer or crosslinkable oligomer containing two or more double bonds is an aromatic pad composition using an acrylic foam, characterized in that an acrylic or methacryl derivative having two or more double bonds is used in the molecule. The method of claim 9, The photoinitiator is a compound selected from ketals, ketones, acetophenones, sulfites, benzoates, benzophenones, phosphines, and ethanones alone or as a mixture of two or more thereof, which is a compound capable of absorbing ultraviolet rays to form radicals. A directional pad composition using an acrylic foam, characterized in that. The method of claim 9, The thermal initiator is a directional pad composition using an acrylic foam, characterized in that the material capable of forming radicals by heat selected from peroxide-based, azo-based, ketal-based, hemi-ketal-based. The method of claim 9, The additive is composed of a single or a combination of a thickener and a tackifying resin, the thickener is a single or a mixture of two or more selected from rubber-based compounds of acrylic rubber, SBS rubber, natural rubber, butyl rubber, the tackifying resin is rosin Using an acrylic foam characterized in that it is a single or a mixture of two or more selected from ester type, rosin ester resin type resin, terpene phenol type, zylene type, noblock resin, aldehyde resin, C5 type and C9 type tackifying resin Aromatic pad composition. The method of claim 9, The fragrance is selected solely or in mixture of two or more kinds of fragrances including lavender oil, wood-based sandalwood, chamomile, and polar oil-based neroli, peach, citrus-based lemon, orange and citrus. A directional pad composition using an acrylic foam characterized in that. The preparation of the pad using the composition of any one of claims 9 and 11 to 17 is characterized in that it is made in the form of an acrylic tape using a breathable support or substrate or in the form of an acrylic foam containing no substrate. Method for producing a directional pad using an acrylic foam. The method of claim 18, Process for producing a directional pad using an acrylic foam characterized in that the directional pad is processed into a form that can be attached to clothes or a part of the body.

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