KR101090620B1 - Transparent Window For Oxygen Mask And Manufacturing Method Thereof - Google Patents

Abstract

The present invention relates to an oxygen mask face window and a method for manufacturing the same, and more particularly, a face mask for an oxygen mask, which is attached to the front surface of an oxygen mask to secure a wearer's field of view, and has a thickness of 20 μm in the center. 5 cm of flame retardant polycarbonate resin; Transparent synthetic resin film having a thickness of 5 ~ 188㎛ respectively located on the top and bottom of the flame retardant polycarbonate resin; And an adhesive or adhesive for bonding the flame retardant polycarbonate resin and the transparent synthetic resin film.

According to the present invention, the flame retardant polycarbonate is used in a thickness of 20 μm to 5 cm, the transparent synthetic resin film is used in a thickness of 5 to 188 μm, and the flame retardant polycarbonate resin and the transparent synthetic resin are used as the pressure-sensitive adhesive or adhesive. By combining the film to produce a face mask for oxygen mask shows a flame retardancy, heat resistance, permeability, accordingly the face mask for oxygen mask satisfies the criteria of the flame retardancy test, flame penetration test, luminous transmittance is excellent in physical properties. .

Face window, Oxygen mask, Flame retardant, Flame permeability, Visibility permeability, Flame retardant polycarbonate, Adhesive, Adhesive, Synthetic resin film

Description

Facial Window For Oxygen Mask And Manufacturing Method Thereof}

The present invention relates to a facial mask for oxygen mask and a method of manufacturing the same, and more particularly, the facial mask for oxygen mask is attached to the front surface of the oxygen mask as a viewing window for securing the wearer's field of view, the thickness 20㎛ located in the center Oxygen containing a flame retardant polycarbonate resin of 5 ~ 5cm, transparent synthetic resin film having a thickness of 5 ~ 188㎛ respectively located on the top and bottom of the flame retardant polycarbonate resin and adhesive or adhesive for bonding the flame retardant polycarbonate resin and the transparent synthetic resin film A facial window for a mask and a method of manufacturing the same.

In general, due to the increase in the use of synthetic polymers in buildings and interior decoration, the evacuation of the toxic gas in the event of a fire often causes asphyxiation of toxic gas within minutes before reaching the exit.

To prevent this, oxygen masks that are convenient to carry in a fire have been widely known. Portable oxygen masks known to date are devices that carry oxygen to allow breathing during an emergency evacuation to a safe location in the event of a fire.

The portable oxygen mask is attached to the front surface of the oxygen mask is provided with a viewing window for securing the wearer's field of view, the viewing window is weak to fire, there is a problem that the ability to protect from the flame falls.

As a heat-resistant material to solve this problem, German Patent Publication No. 102005011096 discloses a composite safety window made of glass and plastic layers, including a moisture-blocking film cover and an edge barrier layer around it, in order to maintain its structure and function even at high temperatures. The description of the safety window is described.

However, the composite safety window made of the glass and plastic layers has a problem in that it is difficult to use as a face window of an oxygen mask because a risk occurs when the composite safety window is broken.

Accordingly, an object of the present invention is to solve the problem of the danger to the human body in case of breakage of the composite safety window made of a conventional glass and plastic layer by configuring the oxygen mask face window with only the plastic layer, and to solve the problem of resistance to high temperature It is an object of the present invention to provide a face mask for oxygen mask and a method of manufacturing the same, which are solved by using a transparent synthetic resin film that withstands high temperature and solved the problem of harmful gas generation using a flame retardant polycarbonate resin.

In order to solve the above object, the present invention is attached to the front surface of the oxygen mask as a viewing window for the oxygen mask to ensure the wearer's field of view,

Flame retardant polycarbonate resin having a thickness of 20 μm to 5 cm;

Transparent synthetic resin film having a thickness of 5 ~ 188㎛ respectively located on the top and bottom of the flame retardant polycarbonate resin; And

It provides a facial mask for an oxygen mask comprising a; adhesive or adhesive for bonding the flame-retardant polycarbonate resin and the transparent synthetic resin film.

In addition, the present invention is attached to the front surface of the oxygen mask as a method of manufacturing a face mask for oxygen mask as a viewing window for securing the wearer's field of view,

Applying an adhesive or an adhesive to one or both sides of a flame retardant polycarbonate resin having a thickness of 20 μm to 5 cm;

Applying the adhesive or the adhesive to one side of the transparent synthetic resin film having a thickness of 5 to 188 μm; And

The pressure-sensitive adhesive or the adhesive-coated flame retardant polycarbonate resin is positioned in the center, and the adhesive or the adhesive-coated transparent synthetic resin film is bonded to the upper and lower portions of the flame-retardant polycarbonate resin, respectively, and then any of heat, pressure or UV It provides a method for manufacturing a face window for an oxygen mask comprising; or in close contact with two or more of these methods.

The face mask for oxygen mask of the present invention and a manufacturing method thereof are attached to the front surface of the oxygen mask as a viewing window for securing the wearer's field of view, using a flame-retardant polycarbonate in a thickness of 20 ㎛ ~ 5cm, transparent transparent resin film 5 ~ 188㎛ thickness, and using a pressure-sensitive adhesive or adhesive to combine the flame-retardant polycarbonate resin and the transparent synthetic resin film to produce a face mask for oxygen mask shows flame retardancy, heat resistance, permeability, accordingly the face mask for oxygen mask It satisfies the criteria of flame retardancy test, flame penetration test and luminous transmittance, and has excellent physical properties.

The face mask for oxygen mask of the present invention is a face window for the oxygen mask which is attached to the front surface of the oxygen mask to ensure a wearer's field of view,

Flame retardant polycarbonate resin having a thickness of 20 μm to 5 cm;

Transparent synthetic resin film having a thickness of 5 ~ 188㎛ respectively located on the top and bottom of the flame retardant polycarbonate resin; And

It includes; adhesive or adhesive for bonding the flame-retardant polycarbonate resin and the transparent synthetic resin film.

Here, the oxygen mask face window solves the problem of danger to the human body in case of breakage of the composite safety window made of a conventional glass and plastic layer by configuring the oxygen mask face window with only a plastic layer, resistance to high temperature The problem was solved by using a polycarbonate resin that withstands high temperatures, and the problem of harmful gas generation was solved by using a flame retardant polycarbonate resin.

Here, the portable oxygen mask equipped with a face window is a way to escape by breathing by receiving oxygen for a few seconds to a few minutes in the event of a fire, using compressed oxygen, or using a method of providing oxygen through the reaction of water and chemicals. Doing.

In this case, the oxygen mask face window is attached to the front surface of the portable oxygen mask is used as a viewing window for securing the wearer's field of view.

Here, the oxygen mask face window satisfies the physical property standards of flame retardancy test, flame penetration test, luminous transmittance.

The flame retardancy acceptance criteria shall be 25mm / min or less from the Korea Fire Industry and Technology Institute (KFI) accreditation standard (approved July 20, 2007) of fire escape breathing apparatus. In the flame retardancy test results of the facial mask for the oxygen mask of the present invention, the combustion rate was 25 mm / min or less of the acceptance criteria.

The acceptance criteria for the flame penetration test is within 3 seconds of the KFI certification criteria (approved July 20, 2007) of the fire escape breathing apparatus. In the flame penetration test result of the facial mask for oxygen mask of the present invention, flame penetration did not appear flame penetration within 3 seconds of the acceptance criteria.

The acceptance criteria for monitoring transmittance is on average 60% or higher in Korea Fire Industry Advancement Institute (KFI) accreditation standard (approved July 20, 2007). In the luminous transmittance result of the facial mask for oxygen mask of the present invention, the luminous transmittance was found to be 70% or more, which is 60% or more, which is an acceptance criterion.

In addition, the properties of the flame retardancy test, flame penetration test, luminous transmittance of the face mask for oxygen mask at the thickness of 20㎛ ~ 5cm of the flame retardant polycarbonate resin passes the acceptance criteria.

When the thickness of the flame retardant polycarbonate resin of the face mask for oxygen mask is less than the above range, it is difficult to use as a face mask for oxygen mask because it does not satisfy the physical property standards of the flame retardancy test, flame penetration test, and luminous transmittance.

In addition, when the thickness of the flame retardant polycarbonate resin of the face mask for oxygen mask exceeds the above range, there is inconvenience in wearing comfort.

In addition, the physical properties of the flame retardancy test, flame penetration test, luminous transmittance of the face mask for oxygen mask at the thickness of 5 ~ 188㎛ of the transparent synthetic resin film passes the acceptance criteria.

When the thickness of the transparent synthetic resin film of the face mask for oxygen mask is less than the above range, it is difficult to use as a face mask for oxygen mask because it does not satisfy the physical property standards of the flame retardancy test, flame penetration test, and luminous transmittance.

In addition, when the thickness of the transparent synthetic resin film of the face mask for oxygen mask exceeds the above range, inconvenience in wearing.

In this case, the flame retardant polycarbonate resin is antimony trioxide (Sb ₂ O ₃ ), aluminum hydroxide (Al (OH) ₃ ), magnesium hydroxide (Mg (OH) ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate (polycarbonate) MgHCO ₃ ), a clay, talc, chlorine-based flame retardant, phosphate ester flame retardant any one or a mixture of two or more of these prepared by the addition of a flame retardant component, the resin is about 75, when the strain force of about 1.8 megapascals, Flame-retardant grade V-0 for flame retardant samples with a thickness of 0.26 to 1.6 mm, and flame retardance for samples with a thickness of 0.25 mm or less, as determined by UL-94 test measurements at thermal denaturation temperatures above It is preferred to have a flame retardancy of grade VTM-0 and a haze of 0.1 to 10%.

The flame retardant polycarbonate is antimony trioxide (Sb ₂ O ₃ ), aluminum hydroxide (Al (OH) ₃ ), magnesium hydroxide (Mg (OH) ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate (MgHCO ₃ ), clay, A flame retardant of V-0 or VTM-0 grade is exhibited by the addition of a flame retardant which is either talc, chlorine flame retardant or phosphate ester flame retardant or a mixture of two or more thereof.

The flame-retardant polycarbonate is a LEXAN FR700 Film, LEXAN FR60 Film, etc. of GE of the United States, the molecular weight range of 20,000 or more, NH-1023XD, LB-1090HW, etc. of Korea Cheil Industries has a molecular weight range of 20,000 or more.

Alternatively, the flame-retardant polycarbonate can be obtained using the same physical properties as the face window even if the product of any company, such as GE company in the United States, Mitsubishi Chemical Co., Ltd. of Japan, Korea Cheil Industries.

In this case, the V-0 (Vertical-0) grade is a flame retardant grade of the International Flame Retardancy Test Standard UL94 (Underrights Laboratory 94), and the grade is determined by a vertical burning test with a sample thickness of 0.26 mm or more. Comparing the KFI accreditation standard (approved by July 20, 2007) of the fire evacuation-type breathing apparatus for fire evacuation with UL94, the V-0 rating is below 25mm / min. It becomes V-1, V-2 and it is inferior in flame retardancy.

The VTM-0 (Very Thin Material-0) grade is a flame retardant grade of the International Flammability Test Standard UL94 (Underrights Laboratory 94), and is graded by a Twist Burning Test at a sample thickness of 0.25 mm or less. Comparing the KFI accreditation standard (approved by July 20, 2007) of the fire evacuation self-contained breathing apparatus, which is the flame retardant acceptance criteria, with UL94, the VTM-0 rating is applied when the combustion time is 25mm / min or less, VTM-1 and VTM-2, which means less flame retardant.

The V-0 grade flame retardant polycarbonates include LEXAN FR700 film, LEXAN FR60 film, GE-10, NH-1023XD, LB-1090HW, etc. of GE Korea, and the VTM-0 grade flame retardant polycarbonate is LEXAN, GE US. FR83 film and the like.

Here, the flame retardant polycarbonate has a heat deformation temperature of 130 to 150 ° C. and a melting point of 267 ° C., which is very high in heat resistance.

At this time, the lower the haze (Haze) is a transparent resin, so the flame-retardant polycarbonate resin in the range of 0.1 to 10% of the haze is a very transparent resin.

In addition, the transparent synthetic resin film is any one of polyester, polypropylene, polyimide, polycarbonate, polystyrene or polyethylene, or a mixed resin film of two or more thereof, it is preferable that the haze is 0.1 to 10%.

Here, the transparent synthetic resin film is excellent in chemical resistance.

At this time, the lower the haze (Haze) is a transparent resin, so the transparent synthetic resin film in the range of the cloudiness 0.1 ~ 10% is a very transparent resin.

In addition, the transparent synthetic resin film may add flame retardancy.

The pressure-sensitive adhesive or adhesive is preferably a silicone-based or acrylic resin-based adhesive or adhesive.

Here, the silicone pressure sensitive adhesive or adhesive is preferably an organopolysiloxane or a modified silicone pressure sensitive adhesive or adhesive.

In addition, the acrylic resin-based pressure-sensitive adhesive is preferably any one of polyester acrylate pressure sensitive adhesive, urethane acrylate pressure sensitive adhesive or epoxy acrylate pressure sensitive adhesive or a mixture of two or more thereof.

In addition, the acrylic resin adhesive is preferably any one of polyester acrylate, urethane acrylate or epoxy acrylate adhesive or a mixture of two or more thereof.

Here, the pressure-sensitive adhesive and the adhesive may add flame retardancy.

Here, the pressure-sensitive adhesive and the adhesive has a difference in manufacturing the composition by varying the content, the pressure-sensitive adhesive refers to the easy detachable after being adhered to the substrate and the adhesive refers to difficult to attach and detach the adhesive.

When bonding the flame retardant polycarbonate resin and the transparent synthetic resin film, an adhesive may be used, or an adhesive may be used instead of the adhesive.

In addition, the present invention is attached to the front surface of the oxygen mask as a method of manufacturing a face mask for oxygen mask that is a viewing window for securing the wearer's view,

Applying an adhesive or an adhesive to one or both sides of a flame retardant polycarbonate resin having a thickness of 20 μm to 5 cm;

Applying the adhesive or the adhesive to one side of the transparent synthetic resin film having a thickness of 5 to 188 μm; And

The pressure-sensitive adhesive or the adhesive-coated flame retardant polycarbonate resin is positioned in the center, and the adhesive or the adhesive-coated transparent synthetic resin film is bonded to the upper and lower portions of the flame-retardant polycarbonate resin, respectively, and then any of heat, pressure or UV It includes; or in close contact with one or more of these methods.

Here, the method for manufacturing the face mask for oxygen mask, as shown in Figure 1, a pressure-sensitive adhesive is applied to one side or both sides of the flame retardant polycarbonate resin having a thickness of 20㎛ ~ 5cm, transparent synthetic resin film 1 and thickness 5 having a thickness of 5 ~ 188㎛. After applying the pressure-sensitive adhesive on each side of the transparent synthetic resin film 2 of ~ 188㎛, the flame-retardant polycarbonate resin coated with the pressure-sensitive adhesive is placed in the center, the transparent synthetic resin film 1 and the pressure-sensitive adhesive is applied The transparent synthetic resin film 2 is bonded to the upper and lower portions of the flame retardant polycarbonate resin, respectively, and is prepared by a method of closely contacting any one of heat, pressure or UV, or two or more thereof.

In addition, the flame-retardant polycarbonate resin is antimony trioxide (Sb ₂ O ₃ ), aluminum hydroxide (Al (OH) ₃ ), magnesium hydroxide (Mg (OH) ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate in the polycarbonate (MgHCO ₃ ), clay, talc, chlorine-based flame retardant, phosphate ester-based flame retardant is a resin prepared by adding a flame retardant component of any one or a mixture of two or more thereof, when the resin is about 1.8 megapascals, UL-94 test measurement at thermal denaturation temperature of 75 ° C or higher, flame retardant grade V-0 for samples with thickness of 0.26 ~ 1.6mm, flame retardant for samples with thickness of 0.25mm or less It is preferred to have a flame retardancy of grade VTM-0 and a haze of 0.1 to 10%.

The lower the haze of the flame retardant polycarbonate resin, the more transparent the resin.

Here, the base material for the flame-retardant polycarbonate resin uses the above base material.

In addition, the transparent synthetic resin film is any one of polyester, polypropylene, polyimide, polycarbonate, polystyrene or polyethylene, or a mixed resin film of two or more thereof, it is preferable that the haze is 0.1 to 10%.

The lower the haze of the transparent synthetic resin film, the transparent synthetic resin film.

Here, the transparent synthetic resin film may add flame retardancy.

The base material for the above-mentioned transparent synthetic resin film uses the above base material.

The pressure-sensitive adhesive or adhesive is preferably a silicone-based or acrylic resin-based adhesive or adhesive.

Here, the base material about the said adhesive and the said adhesive uses the previous base material.

Hereinafter, the present invention will be described in detail by way of examples.

However, the following examples are illustrative of the present invention, and the contents of the present invention are not limited by the following examples.

Example 1

A polyester acrylate adhesive was applied to both sides using a LEXAN FR83 film of GE, USA, flame retardant grade VTM-0, as a flame retardant polycarbonate resin having a thickness of 50 μm. The said polyester acrylate adhesive was apply | coated to one side of the polyester film of thickness 10micrometer. Then, the flame retardant polycarbonate resin coated with the polyester acrylate adhesive is positioned at the center, and the polyester film coated with the polyester acrylate adhesive is bonded to the upper and lower portions of the flame retardant polycarbonate resin, respectively, and then heat and UV In close contact, an oxygen mask face window was prepared.

Example 2

A modified silicone adhesive was applied on both sides of a flame retardant polycarbonate resin having a thickness of 300 μm using a LEXAN FR700 film of GE, USA, which is flame retardant grade V-0. The modified silicone adhesive was applied to one side of a polyester film having a thickness of 20 μm. Then, the flame-retardant polycarbonate resin coated with the modified silicone adhesive is placed at the center, and the polyester film coated with the modified silicone adhesive is bonded to the upper and lower portions of the flame-retardant polycarbonate resin, respectively, and then heated and UV-closed to close the oxygen mask. A facial window was prepared.

Comparative Example 1

A polyester acrylate adhesive was applied to both sides using a LEXAN FR83 film of GE, USA, a flame retardant grade VTM-0, as a flame retardant polycarbonate resin having a thickness of 5 mu m. The said polyester acrylate adhesive was apply | coated to one side of the polyester film of thickness 3micrometer. Then, the flame retardant polycarbonate resin coated with the polyester acrylate adhesive is positioned at the center, and the polyester film coated with the polyester acrylate adhesive is bonded to the upper and lower portions of the flame retardant polycarbonate resin, respectively, and then heat and UV In close contact, an oxygen mask face window was prepared.

Comparative Example 2

A modified silicone adhesive was applied on both sides of a flame retardant polycarbonate resin having a thickness of 8 cm using a LEXAN FR700 film of GE, USA, flame retardant grade V-0. The modified silicone adhesive was applied to one side of a polyester film having a thickness of 1 cm. Then, the flame-retardant polycarbonate resin coated with the modified silicone adhesive is positioned at the center, and the polyester film coated with the modified silicone adhesive is bonded to the upper and lower portions of the flame-retardant polycarbonate resin, respectively, and is closely adhered with heat and UV to oxygen. A face window for the mask was prepared.

Experimental Example

The physical properties of the flame retardancy test, flame penetration test, and luminous transmittance of the facial masks for oxygen masks of Examples 1 and 2, Comparative Example 1 and Comparative Example 2 were measured and shown in Table 1 below. Here, the test method and acceptance criteria for the flame retardancy test, the flame penetration test, the luminous transmittance, and the fire safety evacuation system breathing apparatus according to the KFI certification criteria (approved July 20, 2007).

Experimental Example 1

Flame retardancy test acceptance criteria and flame retardancy test method

1-1) Flame Retardant Test Passing Criteria

      The flame retardancy test is the result of the test method and the combustion speed should be below 25 mm / min.

       1-2) Flame retardancy test method

(1) The combustion test apparatus uses the combustion test box of FIG. 2, the test body support frame of FIG. 3, and the Bunsen burner having an inner diameter of 9.5 ± 0.5 mm.

(2) The fuel used for the test is to be suitable for KS M 2150 (liquefied petroleum gas).

(3) The burning rate is to be the average value of four specimens 350 mm in width and 100 mm in length.

(4) The test pieces are allowed to stand for 24 hours in a constant temperature and humidity chamber at 20 ± 5 ° C and a relative humidity of 50 ± 5%, and then tested according to the following methods.

end. Fix the specimen to the U-shaped test frame.

      I. The burner flame shall be 38 mm in length so that the distance from the tip of the burner to the test specimen is 19 mm.

       All. Heat for 15 seconds at the end of each specimen.

      la. The combustion time shall measure the time it takes to burn from 38 mm of the specimen to 254 mm.

       (5) The formula for calculating the combustion speed is as follows.

                                  Combustion length (mm)

          Burning rate (mm / min) = -------------------------- × 60

                             Burning time (second)

Experimental Example 2

Flame penetration test passing standard and test method

       2-1) Flame Penetration Test Passing Criteria

       When conducting flame penetration test by the test method, flame penetration should not occur within 3 seconds.

        2-2) Flame Penetration Test Method

       (1) The combustion test apparatus uses the combustion test box of Fig. 2, the test body support frame of Fig. 3, and the Bunsen burner having an inner diameter of 9.5 ± 0.5 mm.

       (2) The fuel used for the test is to be suitable for KS M 2150 (liquefied petroleum gas).

       (3) The time for the formation of flame through holes is to be averaged by the test of eight specimens of 120 mm in width and 120 mm in length.

       (4) The test pieces are allowed to stand for 24 hours in a constant temperature and humidity chamber at 20 ± 5 ° C and a relative humidity of 50 ± 5%, and then tested according to the following methods.

         end. Fix the specimen to the annular jig of 10 ± 1 cm in diameter.

        I. The length of burner flame shall be 38 mm so that the distance from the tip of the burner to the test piece is 19 mm.

        All. The heating should be carried out until a hole is formed in the center of each specimen, and the time until the formation of a through hole shall be measured.

Experimental Example 3

Acceptance criteria and test method of visual transmittance (light transmittance) of face window

       3-1) Passing test of passing test

       The visual transmittance of the facial window should be at least 60% on average.

       3-2) Test transmittance test method

      Using a spectrophotometer, the luminous transmittance was measured at a wavelength interval of 10 nm in the visible light wavelength range of 380 nm to 780 nm, and calculated as follows.

                  780 780

Tv (%) = [∑P _A (λ) V (λ) τ (λ) / ∑P _A (λ) V (λ)] × 100

                 λ = 380 λ = 380

P _A (λ): value of the spectral distribution of standard light A

         V (λ): Standard visibility of sight at 2 degrees

         τ (λ): Spectral transmittance of the test filter

          Tv ： Vision transmittance (%)

Item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Combustion speed
(Flame retardancy measurement)
(mm / min)
10
20
5
50 Fireworks Penetration Time
(second) 5 8 0.5 60 Visual transmittance (%) 80 70 85 50 Shape stability
(Visual observation) stability stability Gradation stability

In Example 1, the combustion speed was 10 mm / min, the flame penetration time was 5 seconds, and the luminous transmittance was 80%, which satisfies the acceptance criteria for the face window for oxygen mask. In addition, in Example 2, the combustion speed was 20 mm / min, the flame penetration time was 8 seconds, and the luminous transmittance was 70%, which satisfies the acceptance criteria for the face mask properties for the oxygen mask.

In Comparative Example 1, the combustion speed was 5 mm / min, the flame penetration time was 0.5 seconds, and the visual transmission transmittance was 85%. The flame penetration time did not satisfy the acceptance criteria for the face mask properties of the oxygen mask, and the shape was not fixed. It will not work as a facial mask for oxygen mask. In Comparative Example 4, the combustion speed was 50 mm / min, the flame penetration time was 60 seconds, and the luminous transmittance was 50%, which did not satisfy the acceptance criteria for the face mask properties for the oxygen mask at the combustion rate and the luminous transmittance.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 is a cross-sectional view of the face mask for oxygen mask according to the present invention.

2 is a view showing the combustion test of the combustion test apparatus used in the flame retardancy test method and flame penetration test of the present invention.

Figure 3 is a view showing a test body support frame of the combustion test apparatus used in the flame retardancy test method and flame penetration test of the present invention.

Claims (11)

It is attached to the front of the oxygen mask as a face mask for oxygen mask which is a viewing window for securing the wearer's field of view, Flame retardant polycarbonate resin having a thickness of 20 μm to 5 cm; Transparent synthetic resin film having a thickness of 5 ~ 188㎛ respectively located on the top and bottom of the flame retardant polycarbonate resin; And It includes; adhesive or adhesive for bonding the flame-retardant polycarbonate resin and the transparent synthetic resin film, The flame retardant polycarbonate resin is antimony trioxide (Sb ₂ O ₃ ), aluminum hydroxide (Al (OH) ₃ ), magnesium hydroxide (Mg (OH) ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate (MgHCO ₃ ) in polycarbonate ), Clay, talc, chlorine flame retardant, phosphate ester flame retardant is a resin prepared by adding a flame retardant component of any one or a mixture of two or more thereof, the flame retardant polycarbonate resin is 75 ℃ when a strain of 1.8 megapascals is applied Flame-retardant grade VTM for samples with a thickness of 0.25 mm or less with flame retardancy of V-0 for samples with thicknesses from 0.26 to 1.6 mm, as determined by UL-94 test measurements under the conditions of thermal denaturation Face mask for oxygen mask having a flame retardancy of -0, Haze is 0.1 ~ 10%. delete The method of claim 1, wherein the transparent synthetic resin film is any one of polyester, polypropylene, polyimide, polycarbonate, polystyrene or polyethylene, or two or more of these mixed resin film has a haze of 0.1 to 10% Face window for oxygen mask characterized in that. The facial mask for an oxygen mask according to claim 1, wherein the pressure-sensitive adhesive or adhesive is a silicone-based or acrylic resin-based adhesive or adhesive. The facial mask for an oxygen mask according to claim 4, wherein the silicone pressure sensitive adhesive or adhesive is organopolysiloxane or modified silicone pressure sensitive adhesive or adhesive. The facial mask for an oxygen mask according to claim 4, wherein the acrylic resin pressure sensitive adhesive is any one of polyester acrylate, urethane acrylate or epoxy acrylate pressure sensitive adhesive or a mixture of two or more thereof. The facial mask for an oxygen mask according to claim 4, wherein the acrylic resin adhesive is any one of polyester acrylate, urethane acrylate or epoxy acrylate adhesive or a mixture of two or more thereof. A method for manufacturing a facial mask for an oxygen mask, which is attached to the front surface of an oxygen mask and is a perspective window for securing a wearer's vision, Applying an adhesive or an adhesive to one or both sides of a flame retardant polycarbonate resin having a thickness of 20 μm to 5 cm; Applying the adhesive or the adhesive to one side of the transparent synthetic resin film having a thickness of 5 to 188 μm; And The adhesive or the adhesive-coated flame retardant polycarbonate resin is placed in the center, and the adhesive or the adhesive-coated transparent synthetic resin film is bonded to the upper and lower portions of the flame-retardant polycarbonate resin, respectively, and any of heat, pressure or UV. Including one or two or more of these in close contact; The flame retardant polycarbonate resin is antimony trioxide (Sb ₂ O ₃ ), aluminum hydroxide (Al (OH) ₃ ), magnesium hydroxide (Mg (OH) ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate (MgHCO ₃ ) in polycarbonate ), Clay, talc, chlorine flame retardant, phosphate ester flame retardant is a resin prepared by adding a flame retardant component of any one or a mixture of two or more thereof, the flame retardant polycarbonate resin is 75 ℃ when a strain of 1.8 megapascals is applied Flame-retardant grade VTM for samples with a thickness of 0.25 mm or less with flame retardancy of V-0 for samples with thicknesses from 0.26 to 1.6 mm, as determined by UL-94 test measurements under the conditions of thermal denaturation The method of manufacturing a facial mask for an oxygen mask having a flame retardancy of -0 and a haze of 0.1 to 10%. delete The method of claim 8, wherein the transparent synthetic resin film is any one of polyester, polypropylene, polyimide, polycarbonate, polystyrene, or polyethylene, or two or more of these mixed resin film has a haze of 0.1 to 10% A facial window manufacturing method for an oxygen mask. The method of claim 8, wherein the pressure-sensitive adhesive or the adhesive is a silicone-based or acrylic resin-based pressure-sensitive adhesive or adhesive.

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