JP2014224776A - X-ray shielding sheet - Google Patents
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Description
本発明は、Ｘ線遮蔽シートに関する。 The present invention relates to an X-ray shielding sheet.
特許文献１には、食品用Ｘ線検査装置のＸ線遮蔽用カーテンについて記載されている。Ｘ線遮蔽用カーテンの具体的な構成は、結晶化度が２０％以上７０％以下であるオレフィン系エラストマー中にタングステン粉末が分散しており、かつ電子線照射による架橋組織を有した板状Ｘ線遮蔽体からなり、かつ食品衛生法の規格基準（昭和３４年厚生省告示第３７０号）におけるヘプタン溶出基準（１５０ｐｐｍ以下）に適合することを特徴とするものである。 Patent Document 1 describes an X-ray shielding curtain of a food X-ray inspection apparatus. A specific configuration of the X-ray shielding curtain is a plate-like X in which tungsten powder is dispersed in an olefin-based elastomer having a crystallinity of 20% or more and 70% or less, and has a crosslinked structure by electron beam irradiation. It consists of a wire shield and is characterized by conforming to the heptane elution standard (150 ppm or less) in the standard of the Food Sanitation Act (Ministry of Health and Welfare Notification No. 370 of 1959).
そして、耐久性や、被検査物とＸ線遮蔽体の直接の接触を小さくするために、板状Ｘ線遮蔽体の片広面または両広面に、ポリエチレン系、ポリスチレン系、ポリプロピレン系のいずれかの有機物からなる保護フィルムが密着してもよい記載がされている。
また、保護フィルムの厚みは強度と柔軟性を考慮すると、１０〜２００μｍの範囲がよい記載がされている。
And in order to reduce the durability and direct contact between the object to be inspected and the X-ray shield, either one of polyethylene-type, polystyrene-type, or polypropylene-type is applied to one or both sides of the plate-like X-ray shield. There is a description that a protective film made of an organic material may be adhered.
In addition, the thickness of the protective film is preferably in the range of 10 to 200 μm in view of strength and flexibility.
ところが、板状Ｘ線遮蔽体の片広面または両広面に、ポリエチレン系、ポリスチレン系、ポリプロピレン系のいずれかの有機物からなる保護フィルムが密着していると、上記保護フィルムの厚み範囲であっても、柔軟性と表面強度、並びに板状Ｘ線遮蔽体と保護フィルムとの密着性において所望の物性を得ることは困難であった。 However, when a protective film made of any organic material such as polyethylene, polystyrene, or polypropylene is in close contact with one or both of the wide surfaces of the plate-shaped X-ray shield, even if it is within the thickness range of the protective film. It was difficult to obtain desired physical properties in terms of flexibility and surface strength, and adhesion between the plate-shaped X-ray shield and the protective film.
そこで、本発明は、Ｘ線遮蔽層の少なくとも片面に補強層を積層させたＸ線遮蔽シートにおいて、柔軟性、表面強度、並びにＸ線遮蔽層と補強層との密着性において所望の物性を得ることができるＸ線遮蔽シートを提供することを目的とする。 Therefore, the present invention obtains desired physical properties in terms of flexibility, surface strength, and adhesion between the X-ray shielding layer and the reinforcing layer in the X-ray shielding sheet in which the reinforcing layer is laminated on at least one side of the X-ray shielding layer. An object of the present invention is to provide an X-ray shielding sheet that can be used.
本発明のＸ線遮蔽シートは、Ｘ線遮蔽層の少なくとも片面に補強層を積層させてなるＸ線遮蔽シートであって、Ｘ線遮蔽層は、Ｘ線遮蔽材とポリウレタン樹脂を含む層であり、補強層は、ポリウレタン樹脂を含む層であることを特徴とする。 The X-ray shielding sheet of the present invention is an X-ray shielding sheet obtained by laminating a reinforcing layer on at least one side of an X-ray shielding layer, and the X-ray shielding layer is a layer containing an X-ray shielding material and a polyurethane resin. The reinforcing layer is a layer containing a polyurethane resin.
本発明のＸ線遮蔽シートは、Ｘ線遮蔽性に優れると共に、柔軟性、表面強度、並びにＸ線遮蔽層と補強層との密着性において所望の物性を得ることができるものである。 The X-ray shielding sheet of the present invention is excellent in X-ray shielding properties and can obtain desired physical properties in terms of flexibility, surface strength, and adhesion between the X-ray shielding layer and the reinforcing layer.
本発明のＸ線遮蔽シートは、Ｘ線遮蔽層の少なくとも片面に補強層を積層させてなるＸ線遮蔽シートであって、Ｘ線遮蔽層はＸ線遮蔽材とポリウレタン樹脂を含む層であり、補強層はポリウレタン樹脂を含む層であることを特徴とする。
また、Ｘ線遮蔽シートの総厚みは０．３〜１．０ｍｍが好ましくは、０．３ｍｍ未満であると強度やＸ線遮蔽性が低下し易い。１．０ｍｍを超えると、柔軟性が低下し易い。
The X-ray shielding sheet of the present invention is an X-ray shielding sheet obtained by laminating a reinforcing layer on at least one side of an X-ray shielding layer, and the X-ray shielding layer is a layer containing an X-ray shielding material and a polyurethane resin. The reinforcing layer is a layer containing a polyurethane resin.
Further, the total thickness of the X-ray shielding sheet is preferably 0.3 to 1.0 mm, and if it is less than 0.3 mm, the strength and the X-ray shielding properties are liable to deteriorate. If it exceeds 1.0 mm, the flexibility tends to decrease.
［Ｘ線遮蔽層］
本発明のＸ線遮蔽層は、Ｘ線を遮蔽するための層であり、好ましくはＸ線遮蔽シートの鉛当量が０．１５ｍｍＰｄ以上となればよい。具体的な構成は、Ｘ線遮蔽材とポリウレタン樹脂を含む層である。
[X-ray shielding layer]
The X-ray shielding layer of the present invention is a layer for shielding X-rays, and preferably the lead equivalent of the X-ray shielding sheet is 0.15 mmPd or more. A specific configuration is a layer containing an X-ray shielding material and a polyurethane resin.
また、Ｘ線遮蔽材とポリウレタン樹脂の混合比は、固形分比でＸ線遮蔽材：ポリウレタン樹脂＝８０〜９７：３〜２０となるように調整するのがよい。Ｘ線遮蔽材が固形分比で９７を超えると、柔軟性や強度が不足し易い。Ｘ線遮蔽材が固形分比で８０未満であると、鉛当量が０．１５ｍｍＰｄ未満になり易く、Ｘ線遮蔽性に劣る。 The mixing ratio of the X-ray shielding material and the polyurethane resin is preferably adjusted so that the solid content ratio is X-ray shielding material: polyurethane resin = 80 to 97: 3 to 20. When the X-ray shielding material exceeds 97 in terms of solid content, flexibility and strength are likely to be insufficient. If the X-ray shielding material has a solid content ratio of less than 80, the lead equivalent tends to be less than 0.15 mmPd, and the X-ray shielding properties are poor.
また、Ｘ線遮蔽層の厚みは０．１〜０．８ｍｍの範囲に調整するのが好ましく、厚みが０．１ｍｍ未満であると、鉛当量が０．１５ｍｍＰｄ未満になり易く、Ｘ線遮蔽性に劣る。厚みが０．８ｍｍを超えると、柔軟性が不足し易い。 The thickness of the X-ray shielding layer is preferably adjusted to a range of 0.1 to 0.8 mm. If the thickness is less than 0.1 mm, the lead equivalent tends to be less than 0.15 mmPd, and the X-ray shielding property Inferior to When the thickness exceeds 0.8 mm, flexibility is likely to be insufficient.
［Ｘ線遮蔽材］
本発明のＸ線遮蔽材としては、比重が高い粉末状物質であればよく、例えばバリウム化合物、タングステン、酸化タングステン、その他のタングステン化合物、ビスマス、ビスマス化合物、タンタル、タンタル化合物、チタン、チタン化合物などの粉末状物が挙げられ、これらは単独、あるいは複数を組み合わせて使用することができる。
また、粉末状のＸ線遮蔽材にカップリング処理を行い、ポリウレタン樹脂との分散性を高めてもよい。
[X-ray shielding material]
The X-ray shielding material of the present invention may be a powdery substance having a high specific gravity. For example, barium compounds, tungsten, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, etc. These powders can be used, and these can be used alone or in combination.
Further, the powdery X-ray shielding material may be subjected to a coupling treatment to improve dispersibility with the polyurethane resin.
［ポリウレタン樹脂］
本発明のＸ線遮蔽層におけるポリウレタン樹脂としては、柔軟で強度があり、シート状に硬化できるものであればよく、例えば一液型ポリウレタン樹脂(ホットメルト系、溶剤系を含む)、二液型ポリウレタン樹脂(架橋系)のいずれのポリウレタン樹脂でも使用することができる。
[Polyurethane resin]
As the polyurethane resin in the X-ray shielding layer of the present invention, any polyurethane resin may be used as long as it is flexible and strong and can be cured into a sheet shape. Any polyurethane resin (crosslinked system) can be used.
また、本発明のＸ線遮蔽層を形成する際、例えばＸ線遮蔽材とポリウレタン樹脂を、ＤＭＦなどの有機溶媒中に分散させた溶液を作製し、この溶液を脱泡後、離型紙上または補強層上にコーティングし、熱硬化させて得ることができる。
なお、有機溶媒を用いない無溶剤型、すなわちポリウレタン樹脂にＸ線遮蔽材を分散させた液を同じようにコーティングし、熱硬化させてＸ線遮蔽層を得てもよい。
Further, when forming the X-ray shielding layer of the present invention, for example, a solution in which an X-ray shielding material and a polyurethane resin are dispersed in an organic solvent such as DMF is prepared. It can be obtained by coating on a reinforcing layer and thermosetting.
In addition, a solventless type that does not use an organic solvent, that is, a liquid in which an X-ray shielding material is dispersed in a polyurethane resin may be coated in the same manner and thermally cured to obtain an X-ray shielding layer.
また、本発明のＸ線遮蔽層は、Ｘ線遮蔽材とポリウレタン樹脂以外に、例えば架橋剤、カップリング剤、脱泡剤、レベリング剤などをＸ線遮蔽性を阻害しない範囲で加えてもよい。 In addition to the X-ray shielding material and the polyurethane resin, for example, a crosslinking agent, a coupling agent, a defoaming agent, and a leveling agent may be added to the X-ray shielding layer of the present invention within a range that does not inhibit the X-ray shielding properties. .
［補強層］
本発明の補強層は、Ｘ線遮蔽シートとしての表面強度を高める層であり、Ｘ線遮蔽層の少なくとも片面にポリウレタン樹脂を含む層を積層させてなる。
また、補強層はポリウレタン樹脂を含む層であり、その形態はフィルム状やシート状、或いはコーティング膜状のいずれであってもよい。
[Reinforcing layer]
The reinforcing layer of the present invention is a layer that increases the surface strength of the X-ray shielding sheet, and is formed by laminating a layer containing a polyurethane resin on at least one side of the X-ray shielding layer.
The reinforcing layer is a layer containing a polyurethane resin, and the form thereof may be any of a film shape, a sheet shape, or a coating film shape.
また、補強層の厚みは、７０〜２５０μｍの範囲に調整するのが好ましく、厚みが７０μｍ未満になると、強度が低下し易い。厚みが２５０μｍを超えると、柔軟性が低下し易い。 Moreover, it is preferable to adjust the thickness of a reinforcement layer to the range of 70-250 micrometers, and intensity | strength will fall easily when thickness becomes less than 70 micrometers. When the thickness exceeds 250 μm, the flexibility tends to decrease.
また、補強層を構成するポリウレタン樹脂としては、柔軟で強度があり、シート状に形成できるものであればよい。ポリウレタン樹脂としては、熱硬化性ポリウレタン樹脂や熱可塑性ポリウレタン樹脂のどちらでも使用できる。好ましくは、一液型ポリウレタン樹脂(ホットメルト系、溶剤系を含む)、二液型ポリウレタン樹脂(架橋系)からなる熱硬化性ポリウレタン樹脂が使用できる。 The polyurethane resin constituting the reinforcing layer is not particularly limited as long as it is flexible and strong and can be formed into a sheet shape. As the polyurethane resin, either a thermosetting polyurethane resin or a thermoplastic polyurethane resin can be used. Preferably, a thermosetting polyurethane resin composed of a one-component polyurethane resin (including a hot melt system and a solvent system) and a two-component polyurethane resin (crosslinking system) can be used.
また、Ｘ線遮蔽層の片面または両面に補強層を積層させる方法としては、例えばＸ線遮蔽層上にポリウレタン樹脂からなる接着剤層を介してポリウレタン樹脂フィルム(或いはシート)を貼り合わせる方法、或いは、Ｘ線遮蔽層上に直接ポリウレタン樹脂をコーティングしてコーティング膜を形成した方法が挙げられる。 Further, as a method of laminating a reinforcing layer on one side or both sides of the X-ray shielding layer, for example, a method of laminating a polyurethane resin film (or sheet) via an adhesive layer made of polyurethane resin on the X-ray shielding layer, or And a method in which a polyurethane resin is directly coated on the X-ray shielding layer to form a coating film.
また、Ｘ線遮蔽層上にポリウレタン樹脂フィルム(或いはシート)を貼り合わせる方法において用いる接着剤層としては、ポリウレタン樹脂からなる接着剤を用いるのがよい。このポリウレタン樹脂からなる接着剤としては、一液型ポリウレタン樹脂(ホットメルト系、溶剤系を含む)、二液型ポリウレタン樹脂(架橋系)からなる熱硬化性ポリウレタン樹脂が好ましく、より好ましくは密着性を向上するために二液型ポリウレタン樹脂からなる熱硬化性ポリウレタン樹脂が挙げられる。 In addition, as the adhesive layer used in the method of bonding the polyurethane resin film (or sheet) on the X-ray shielding layer, an adhesive made of polyurethane resin is preferably used. As the adhesive made of this polyurethane resin, a one-component polyurethane resin (including hot melt type and solvent type) and a thermosetting polyurethane resin made of a two-component type polyurethane resin (crosslinked type) are preferable, and more preferably adhesiveness. In order to improve the temperature, a thermosetting polyurethane resin composed of a two-component polyurethane resin can be used.
また、Ｘ線遮蔽層上に直接ポリウレタン樹脂をコーティングしてコーティング膜を形成する場合、コーティング膜は単層でもよいし、多層でもよい。また、多層にコーティングする場合、ポリウレタン樹脂は一液型ポリウレタン樹脂(ホットメルト系、溶剤系を含む)や、二液型ポリウレタン樹脂(架橋系)を組み合わせてコーティングしてもよい。
なお、コーティング膜を形成する溶液としては、例えばポリウレタン樹脂をＤＭＦなどの有機溶媒中に分散させた溶液、或いは、有機溶媒を用いない無溶剤型の液を用いることができる。
Further, when a coating film is formed by directly coating a polyurethane resin on the X-ray shielding layer, the coating film may be a single layer or a multilayer. In the case of coating in multiple layers, the polyurethane resin may be coated with a combination of a one-component polyurethane resin (including a hot melt system and a solvent system) and a two-component polyurethane resin (crosslinking system).
As the solution for forming the coating film, for example, a solution in which a polyurethane resin is dispersed in an organic solvent such as DMF, or a solventless liquid that does not use an organic solvent can be used.
また、本発明の補強層は、ポリウレタン樹脂以外に、例えば顔料、架橋剤などを表面強度を低下させない範囲で加えてもよい。 In addition to the polyurethane resin, the reinforcing layer of the present invention may contain, for example, a pigment, a crosslinking agent, etc. within a range that does not reduce the surface strength.
(実施例１)
Ｘ線遮蔽材であるタングステンの粉末と、ポリウレタン樹脂(一液型ポリウレタン樹脂：ＤＩＣ社製のＮＹ３３１)とを、固形分比でタングステン粉末：ポリウレタン樹脂＝９０：１０となるように混合し、Ｘ線遮蔽ポリウレタン樹脂溶液(ａ)を得た。
続いて、得られた溶液(ａ)を脱泡した後、離型紙上にコーティングして１３０℃で硬化させ、厚み０．５ｍｍのＸ線遮蔽層を得た。
続いて、離型紙を剥離したＸ線遮蔽層の両面に、接着剤であるポリウレタン樹脂(二液型ポリウレタン樹脂：ＤＩＣ社製のＴＡ２０５)を１００ｇ／ｍ２塗布し、８０℃で乾燥させて接着剤層を設けた後、厚み０．２ｍｍのポリウレタン樹脂フィルムからなる補強層を両面に貼り合せた。
結果、Ｘ線遮蔽層の両面に接着剤層をそれぞれ介して補強層を積層させたＸ線遮蔽シートを得た。
(Example 1)
X-ray shielding material tungsten powder and polyurethane resin (one-component polyurethane resin: NY331 manufactured by DIC) were mixed so that the solid content ratio was tungsten powder: polyurethane resin = 90: 10. A line shielding polyurethane resin solution (a) was obtained.
Subsequently, after defoaming the obtained solution (a), it was coated on a release paper and cured at 130 ° C. to obtain an X-ray shielding layer having a thickness of 0.5 mm.
Subsequently, 100 g / m 2 of polyurethane resin (two-component polyurethane resin: TA205 manufactured by DIC) as an adhesive is applied to both surfaces of the X-ray shielding layer from which the release paper has been peeled off, and dried at 80 ° C. for adhesion. After providing the agent layer, a reinforcing layer made of a polyurethane resin film having a thickness of 0.2 mm was bonded to both surfaces.
As a result, an X-ray shielding sheet was obtained in which a reinforcing layer was laminated on both sides of the X-ray shielding layer via an adhesive layer.
(実施例２)
補強層用に配合したポリウレタン樹脂(一液型ポリウレタン樹脂：ＤＩＣ社製のＮＹ３２８)を、離型紙上に塗工し、８０℃で硬化させ、厚み０．２ｍｍのポリウレタン樹脂からなる補強層を得た。
続いて、得られた補強層上に、実施例１で用いたＸ線遮蔽ポリウレタン樹脂溶液(ａ)をコーティングし、１３０℃で硬化させ、厚み０．５ｍｍのＸ線遮蔽層を得た。
続いて、得られたＸ線遮蔽層上に、ポリウレタン樹脂(一液型ポリウレタン樹脂：ＤＩＣ社製のＮＹ３２８)を塗工し、８０℃で硬化させ、０．２ｍｍのポリウレタン樹脂からなる補強層を得た。
結果、Ｘ線遮蔽層の両面にポリウレタン樹脂からなる補強層を積層させたＸ線遮蔽シートを得た。
(Example 2)
Polyurethane resin (one-component polyurethane resin: NY328 manufactured by DIC) blended for the reinforcing layer is coated on a release paper and cured at 80 ° C. to obtain a reinforcing layer made of polyurethane resin having a thickness of 0.2 mm. It was.
Subsequently, the X-ray shielding polyurethane resin solution (a) used in Example 1 was coated on the obtained reinforcing layer and cured at 130 ° C. to obtain an X-ray shielding layer having a thickness of 0.5 mm.
Subsequently, on the obtained X-ray shielding layer, a polyurethane resin (one-component polyurethane resin: NY328 manufactured by DIC) was applied, cured at 80 ° C., and a reinforcing layer made of 0.2 mm polyurethane resin was formed. Obtained.
As a result, an X-ray shielding sheet was obtained in which a reinforcing layer made of polyurethane resin was laminated on both sides of the X-ray shielding layer.
実施例１〜２のＸ線遮蔽シートについて、１）鉛当量、２）柔軟性、３）表面強度、４）密着性の評価を行い、結果を表１に示す。なお、評価方法と評価基準は以下の通りである。 The X-ray shielding sheets of Examples 1 and 2 were evaluated for 1) lead equivalent, 2) flexibility, 3) surface strength, and 4) adhesion, and Table 1 shows the results. Evaluation methods and evaluation criteria are as follows.
１）鉛当量
ＪＩＳ ４５０１(Ｘ線防護用品の鉛当量試験方法)に準じて、Ｘ線遮蔽シートの鉛当量を算出した。
(評価基準)
○：鉛当量が０．１５ｍｍＰｄ以上
×：鉛当量が０．１５ｍｍＰｄ未満
1) Lead equivalent The lead equivalent of the X-ray shielding sheet was calculated according to JIS 4501 (Lead equivalent test method for X-ray protective equipment).
(Evaluation criteria)
○: Lead equivalent is 0.15 mmPd or more ×: Lead equivalent is less than 0.15 mmPd
２）柔軟性
得られたＸ線遮蔽シートから縦２０ｃｍ×横２ｃｍの短冊状試験片を作製し、続いて図１に示すような棒状のゴム支持体上に、試験片の縦長さ略中央部分を掛け、試験片の撓み状態を目視にて観察した。なお、「図１に示す角度」とは、短冊状試験片における支持体側の端部頂点と、支持体上の端部頂点とを結んだ直線を引き、支持体と該直線とで形成された角度Ａと角度Ｂそれぞれを指す。
(評価基準)
○：Ｘ線遮蔽シートの撓み(アール)が小さい（「図１に示す角度」が４５°未満）
×：Ｘ線遮蔽シートの撓み(アール)が大きい（「図１に示す角度」が４５°以上）
2) Flexibility From the obtained X-ray shielding sheet, a strip-shaped test piece having a length of 20 cm and a width of 2 cm was prepared, and then the vertical length of the test piece was approximately at the center on a rod-shaped rubber support as shown in FIG. And the bending state of the test piece was visually observed. The “angle shown in FIG. 1” was formed by drawing a straight line connecting the end vertex on the support side of the strip-shaped test piece and the end apex on the support, and the support and the straight line. Each of the angles A and B is indicated.
(Evaluation criteria)
○: Small deflection of the X-ray shielding sheet (“angle shown in FIG. 1” is less than 45 °)
X: X-ray shielding sheet has a large deflection (R) ("angle shown in Fig. 1" is 45 ° or more)
３）表面強度
ＪＩＳ Ｋ７２０４(デーバー摩耗試験)に準じて、Ｘ線遮蔽シートの表面を目視にて観察した。なお、測定条件としては、摩耗輪ＣＳ−１０、荷重１．０ｋｇ、回転速度１０回／分、回転数５０００回とした。
(評価基準)
◎：Ｘ線遮蔽シートにおける補強層の削れがほとんどなし
○：Ｘ線遮蔽シートにおける補強層の一部が削れたが、Ｘ線遮蔽層や接着剤層の露出なし
×：Ｘ線遮蔽シートの補強層が削れ、Ｘ線遮蔽層や接着剤層が露出した
3) Surface strength According to JIS K7204 (Daver abrasion test), the surface of the X-ray shielding sheet was visually observed. The measurement conditions were a wear wheel CS-10, a load of 1.0 kg, a rotational speed of 10 times / minute, and a rotational speed of 5000 times.
(Evaluation criteria)
A: The reinforcing layer in the X-ray shielding sheet was hardly scraped. ○: A part of the reinforcing layer in the X-ray shielding sheet was scraped, but the X-ray shielding layer and the adhesive layer were not exposed. The layer was scraped and the X-ray shielding layer and adhesive layer were exposed
４）密着性
上記３）表面強度の試験後、Ｘ線遮蔽シートにおける「Ｘ線遮蔽層」と「補強層」の層間剥離を目視にて観察した。
(評価基準)
○：Ｘ線遮蔽シートにおける「Ｘ線遮蔽層」と「補強層」の層間で剥離なし
×：Ｘ線遮蔽シートにおける「Ｘ線遮蔽層」と「補強層」の層間で剥離あり
4) Adhesiveness 3) After the surface strength test, the delamination between the “X-ray shielding layer” and the “reinforcing layer” in the X-ray shielding sheet was visually observed.
(Evaluation criteria)
○: No separation between “X-ray shielding layer” and “reinforcement layer” in X-ray shielding sheet ×: There is separation between “X-ray shielding layer” and “reinforcement layer” in X-ray shielding sheet
Claims (1)
Ｘ線遮蔽層は、Ｘ線遮蔽材とポリウレタン樹脂を含む層であり、
補強層は、ポリウレタン樹脂を含む層であることを特徴とするＸ線遮蔽シート。 An X-ray shielding sheet obtained by laminating a reinforcing layer on at least one side of an X-ray shielding layer,
The X-ray shielding layer is a layer containing an X-ray shielding material and a polyurethane resin,
An X-ray shielding sheet, wherein the reinforcing layer is a layer containing a polyurethane resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013104596A JP2014224776A (en) | 2013-05-17 | 2013-05-17 | X-ray shielding sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013104596A JP2014224776A (en) | 2013-05-17 | 2013-05-17 | X-ray shielding sheet |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2013104596A Pending JP2014224776A (en) | 2013-05-17 | 2013-05-17 | X-ray shielding sheet |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596799U (en) * | 1982-07-07 | 1984-01-17 | 東レ株式会社 | Covering cloth with neutron shielding ability |
| JPH06511315A (en) * | 1991-07-16 | 1994-12-15 | スミス アンド ネフュー ピーエルシー | radiation protection gloves |
| JP2003004893A (en) * | 2001-06-26 | 2003-01-08 | Maeda:Kk | X-ray protection article |
| WO2006090629A1 (en) * | 2005-02-23 | 2006-08-31 | Kabushiki Kaisha Toshiba | Radiation shielding sheet |
| JP2007085865A (en) * | 2005-09-21 | 2007-04-05 | Toshiba Corp | Radiation-shielding sheet and x-ray apparatus using the same |
| JP2008224660A (en) * | 2007-01-25 | 2008-09-25 | Hutchinson Sa | Multi-layer elastomer material charged with radiation attenuating compound, preparation method and use of the same |
-
2013
- 2013-05-17 JP JP2013104596A patent/JP2014224776A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596799U (en) * | 1982-07-07 | 1984-01-17 | 東レ株式会社 | Covering cloth with neutron shielding ability |
| JPH06511315A (en) * | 1991-07-16 | 1994-12-15 | スミス アンド ネフュー ピーエルシー | radiation protection gloves |
| JP2003004893A (en) * | 2001-06-26 | 2003-01-08 | Maeda:Kk | X-ray protection article |
| WO2006090629A1 (en) * | 2005-02-23 | 2006-08-31 | Kabushiki Kaisha Toshiba | Radiation shielding sheet |
| JP2007085865A (en) * | 2005-09-21 | 2007-04-05 | Toshiba Corp | Radiation-shielding sheet and x-ray apparatus using the same |
| JP2008224660A (en) * | 2007-01-25 | 2008-09-25 | Hutchinson Sa | Multi-layer elastomer material charged with radiation attenuating compound, preparation method and use of the same |
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