KR20010095618A - Material for shielding of radiation and protective equipment preparaed by using the same - Google Patents

Material for shielding of radiation and protective equipment preparaed by using the same Download PDF

Info

Publication number
KR20010095618A
KR20010095618A KR1020000018884A KR20000018884A KR20010095618A KR 20010095618 A KR20010095618 A KR 20010095618A KR 1020000018884 A KR1020000018884 A KR 1020000018884A KR 20000018884 A KR20000018884 A KR 20000018884A KR 20010095618 A KR20010095618 A KR 20010095618A
Authority
KR
South Korea
Prior art keywords
radiation
weight
parts
weight parts
weight part
Prior art date
Application number
KR1020000018884A
Other languages
Korean (ko)
Inventor
하종권
하재관
Original Assignee
하종권
하재관
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 하종권, 하재관 filed Critical 하종권
Priority to KR1020000018884A priority Critical patent/KR20010095618A/en
Publication of KR20010095618A publication Critical patent/KR20010095618A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/06—Electric lighting devices with self-contained electric batteries or cells with the light source coupled to the remainder of the device solely by cable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/32—Flexible tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/008—Leisure, hobby or sport articles, e.g. toys, games or first-aid kits; Hand tools; Toolboxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/10—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for personal use, e.g. hand-held
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

PURPOSE: A radiation shielding material and protective equipment made up of such material is provided to achieve an improved radiation shielding effect. CONSTITUTION: A radiation shielding material is manufactured according to the steps of crushing the nonmetal into approximately 400 meshes, wherein the nonmetal is composed of 45 weight parts illite, 25 weight parts Pb, 0.8 weight part Py, 0.5 weight part Bi, 0.7 weight part Cu, 0.5 weight part Sn, 4 weight parts Zn, 3 weight parts Mo, 3 weight parts Ni, 2 weight parts Wo and 0.5 weight part Ti; mixing the crushed nonmetal with polyethylene; performing heat treatment to the resultant material at the temperature of 160°C; and compressing the resultant material in a mold. Protection equipment for use of person working in the field related to radiation ray, is made up of the radiation shield material made in the above-described manner. The protection equipment includes a garment, hat and gloves.

Description

방사선 차단용 재료 및 이 재료로된 보호장비{Material for shielding of radiation and protective equipment preparaed by using the same}Material for shielding radiation and protective equipment made of this material {Material for shielding of radiation and protective equipment preparaed by using the same}

본 발명을 방사선 차단용 재료에 관한 것으로, 특히 방사선 종사자들이 착용하는 의류, 모자, 에이프런, 장갑 등의 보호장비를 제조하는데 사용되어 방사선을 차단함으로써, 인체를 보호할 수 있는 방사선 차단용 재료에 관한 것이다.The present invention relates to a radiation shielding material, and more particularly to a radiation shielding material that can protect the human body by blocking radiation by being used to manufacture protective equipment such as clothing, hats, aprons, gloves, etc. worn by radiation workers. will be.

방사선이란 에너지가 높아 불안한 상태로 있는 원자 또는 원자핵이 안정된 상태를 찾기 위하여 방출되는 에너지의 흐름으로, 인간이 원자력을 이용하면서부터 만들어낸 것이 아니라 공기나 물처럼 지구가 생겨날 때부터 존재하였으며, 지금도 우리는 방사선으로 가득한 환경중에서 생활하고 있다.Radiation is the flow of energy released to find a stable state of atoms or nuclei that are in an unstable state due to high energy.They were not created by humans using nuclear power, but existed since the creation of the earth like air or water. Live in an environment filled with radiation.

그러나, 우리가 이러한 방사선과 함께 생활하면서도 아무런 문제가 없는 것은 우리 주위에 있는 방사선의 양이 특별히 인체에 영향을 주지 않는 매우 적은 양이기 때문이다.However, we live with this radiation and have no problem because the amount of radiation around us is so small that it does not particularly affect the human body.

하지만, 방사선을 한꺼번에 너무 많이 받게 되면 여러 가지 신체적 장애가 나타날 수 있으므로, 방사선 종사자들, 특히, 원자력 발전소의 작업장 종사자, 반도체 생산 공장 종사자, X-RAY 등 방사선 치료기의 운전자들은 방사선에 노출되지않도록 조심하여야 한다.However, receiving too much radiation at the same time can lead to various physical disorders. Radiation workers, especially those working at nuclear power plants, workers at semiconductor production plants, and operators of X-ray radiation, should be careful not to be exposed to radiation. do.

그러므로, 종래 이러한 방사선 종사자들은 방사선의 투과를 차단할 수 있는 의복, 장갑, 에이프런, 모자 등의 보호장비를 착용하고 작업을 하고 있다.Therefore, such radiation workers conventionally work with wearing protective equipment such as clothing, gloves, aprons, hats that can block the transmission of radiation.

이에, 본 발명자 또한 방사선 종자자들이 착용하여 방사선의 투과를 차단할수 있는 보고장비를 제공하고자 연구를 거듭한 결과, 특정비율로 배합한 비금속원료를 분쇄한 후, 이를 폴리에틸렌과 혼합하고, 이를 열을 가하며 틀에 넣고 압축한 것을 사용하여 보호장비를 제조한다면, 방사선의 투과를 차단할 수 있음을 발견하고 본 발명을 완성하게 되었다.Therefore, the present inventors also conducted a study to provide a reporting equipment that can block the transmission of radiation by wearing the radiation seeds, after grinding the non-metallic material blended in a specific ratio, mixed with polyethylene and heat When the protective equipment is manufactured by using the pressed and pressed into the mold, the present invention was found to be able to block the transmission of radiation and to complete the present invention.

따라서, 본 발명의 목적은 방사선 차단용 재료를 제공하는 것이다.It is therefore an object of the present invention to provide a material for blocking radiation.

또한, 본 발명의 다른 목적은 상기 방사선 차단용 재료를 사용하여 제조한 보호장비를 제공하는 것이다.In addition, another object of the present invention is to provide a protective device manufactured using the radiation shielding material.

상기한 목적을 달성하기 위하여, 본 발명에 따른 방사선 차단용 재료는 하기의 비율로 이루어진 비금속을 약 400메쉬로 분쇄하여 폴리에틸렌과 혼합한 후, 약 160℃로 열처리하고, 형틀에 넣어 압축시킨 것임을 특징으로 한다.In order to achieve the above object, the radiation shielding material according to the present invention is characterized in that the base metal of the following ratio is pulverized in about 400 mesh and mixed with polyethylene, heat treated at about 160 ℃, put into a mold and compressed It is done.

금속metal 비율(중량부)Ratio (part by weight) 금속metal 비율(중량부)Ratio (part by weight) 일라이트*Illite * 4545 ZnZn 44 PbPb 2525 MoMo 33 PyPy 0.80.8 NiNi 33 BiBi 0.50.5 WoWo 22 CuCu 0.70.7 TiTi 0.50.5 SnSn 0.50.5 * 일라이트: 산화규소 55중량부, 알루미나 33중량부, 산화칼륨 8.0~9.0중량부, 산화나트륨 1.0~1.5중량부, 산화마그네슘 0.3중량부를 혼합한 것을 800~1,000℃에서 열처리한 후, 약 325메쉬로 분쇄한 것* Illite: 55 parts by weight of silicon oxide, 33 parts by weight of alumina, 8.0 to 9.0 parts by weight of potassium oxide, 1.0 to 1.5 parts by weight of sodium oxide, and 0.3 parts by weight of magnesium oxide were heat-treated at 800 to 1,000 ° C., and then about 325 Crushed by mesh

이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.

방사선에 다량 노출되면, 암이 발생될 수도 있고, 생식세포의 유전자 변이로 인하여 후손에게 이상유전형질이 전달되어 유전적 장해를 유발할 수도 있으며, 오심, 구토, 무력증, 조혈기능장해, 위장증후군, 중추신경계 증후군등의 증상이 나타날 수도 있다.Exposure to high doses of radiation can lead to cancer, genetic mutations in germ cells, which can lead to inherited traits in descendants, leading to genetic disorders, nausea, vomiting, asthenia, hematopoietic disorders, gastrointestinal syndrome, and central nervous system. Symptoms such as nervous system syndrome may appear.

따라서, 방사선 종사자들은 이러한 방사선에 노출되지 않도록 작업시 방사선을 차단할 수 있는 보호장비를 착용하여 한다.Therefore, radiation workers should wear protective equipment to block radiation during work to prevent exposure to such radiation.

이러한 보호장비로는 작업복, 장갑, 에이프런, 모자 등이 있다.Such protective equipment includes work clothes, gloves, aprons and hats.

본 발명은 이러한 보호장비를 방사선을 차단할 수 있는 재료로 제조하여, 더욱 효과적을 방사선을 차단할 수 있도록 한 것이다.The present invention is to manufacture such a protective device made of a material that can block the radiation, to more effectively block the radiation.

본 발명에 따른 방사선 차단 재료는 하기의 비율로 이루어진 비금속을 약 400메쉬로 분쇄하여 폴리에틸렌과 혼합한 후, 약 160℃로 열처리하고, 형틀에 넣어 압축시킨 것이다.In the radiation blocking material according to the present invention, a base metal composed of the following ratio is ground to about 400 mesh, mixed with polyethylene, heat treated at about 160 ° C., and pressed into a mold.

금속metal 비율(중량부)Ratio (part by weight) 금속metal 비율(중량부)Ratio (part by weight) 일라이트*Illite * 4545 ZnZn 44 PbPb 2525 MoMo 33 PyPy 0.80.8 NiNi 33 BiBi 0.50.5 WoWo 22 CuCu 0.70.7 TiTi 0.50.5 SnSn 0.50.5 * 일라이트: 산화규소 55중량부, 알루미나 33중량부, 산화칼륨 8.0~9.0중량부, 산화나트륨 1.0~1.5중량부, 산화마그네슘 0.3중량부를 혼합한 것을 800~1,000℃에서 열처리한 후, 약 325메쉬로 분쇄한 것* Illite: 55 parts by weight of silicon oxide, 33 parts by weight of alumina, 8.0 to 9.0 parts by weight of potassium oxide, 1.0 to 1.5 parts by weight of sodium oxide, and 0.3 parts by weight of magnesium oxide were heat-treated at 800 to 1,000 ° C., and then about 325 Crushed by mesh

이하, 실시예를 들어 본 발명을 상세히 설명하지만, 본 발명이 이들예로만 한정되는 것은 아니다.Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited only to these examples.

[실시예 1]Example 1

폴리에틸렌을 상기 비철금속과 혼합하고, 160℃에서 열을 가한 다음, 2.0~2.5㎜ 두께를 갖는 사각형틀에서 압축시킨 후, 형틀에서 빼내었다. 이 고무판을 에이프런 모양을 제단하여, 천으로 카바를 하여 에이프런을 제작하였다.The polyethylene was mixed with the nonferrous metals, heated at 160 ° C., compressed in a rectangular frame having a thickness of 2.0-2.5 mm, and then removed from the mold. An apron was produced by cutting the rubber sheet into an apron shape and then covering it with a cloth.

[실시예 2]Example 2

폴리에틸렌을 상기 비철금속과 혼합하고, 160℃에서 열을 가한 다음, 2.0~2.5㎜ 두께를 갖는 사각형틀에서 압축시킨 후, 형틀에서 빼내었다. 이 고무판을 장갑 모양을 제단하여, 천으로 커버를 하여 장갑을 제작하였다.The polyethylene was mixed with the nonferrous metals, heated at 160 ° C., compressed in a rectangular frame having a thickness of 2.0-2.5 mm, and then removed from the mold. The rubber sheet was cut into a glove shape and covered with a cloth to produce a glove.

이상에서 설명한 바와 같이, 본 발명에 따른 방사선 차단용 재료를 이용하여 의복, 에이프런, 모자, 장갑 등의 보호장비를 제조한 후, 이를 방사선 종사자들이 착용하면, 방사선을 효과적으로 차단할 수 있다.As described above, after manufacturing the protective equipment, such as clothes, aprons, hats, gloves, etc. using the radiation shielding material according to the present invention, radiation workers can effectively block the radiation.

Claims (2)

하기의 비율로 이루어진 비금속을 약 400메쉬로 분쇄하여 폴리에틸렌과 혼합한 후, 약 160℃로 열처리하고, 형틀에 넣어 압축시킨 것임을 특징으로 하는 방사선 차단용 재료.A base material comprising the following ratio is ground to about 400 mesh, mixed with polyethylene, heat treated at about 160 ° C., and put into a mold to prevent radiation. 금속metal 비율(중량부)Ratio (part by weight) 금속metal 비율(중량부)Ratio (part by weight) 일라이트*Illite * 4545 ZnZn 44 PbPb 2525 MoMo 33 PyPy 0.80.8 NiNi 33 BiBi 0.50.5 WoWo 22 CuCu 0.70.7 TiTi 0.50.5 SnSn 0.50.5 * 일라이트: 산화규소 55중량부, 알루미나 33중량부, 산화칼륨 8.0~9.0중량부, 산화나트륨 1.0~1.5중량부, 산화마그네슘 0.3중량부를 혼합한 것을 800~1,000℃에서 열처리한 후, 약 325메쉬로 분쇄한 것* Illite: 55 parts by weight of silicon oxide, 33 parts by weight of alumina, 8.0 to 9.0 parts by weight of potassium oxide, 1.0 to 1.5 parts by weight of sodium oxide, and 0.3 parts by weight of magnesium oxide were heat-treated at 800 to 1,000 ° C., and then about 325 Crushed by mesh
방사선 종사자들이 작용하는 보호장비에 있어서, 상기 보호장비는 의복, 모자, 장갑 또는 에이프런이고, 제 1항에 기재된 방사선 차단용 재료를 사용하여 제조된 것임을 특징으로 하는 보호장비.A protective device operated by radiation workers, wherein the protective device is a garment, a hat, a glove, or an apron, and the protective device is manufactured using the radiation shielding material according to claim 1.
KR1020000018884A 2000-04-11 2000-04-11 Material for shielding of radiation and protective equipment preparaed by using the same KR20010095618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020000018884A KR20010095618A (en) 2000-04-11 2000-04-11 Material for shielding of radiation and protective equipment preparaed by using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020000018884A KR20010095618A (en) 2000-04-11 2000-04-11 Material for shielding of radiation and protective equipment preparaed by using the same

Publications (1)

Publication Number Publication Date
KR20010095618A true KR20010095618A (en) 2001-11-07

Family

ID=19663383

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000018884A KR20010095618A (en) 2000-04-11 2000-04-11 Material for shielding of radiation and protective equipment preparaed by using the same

Country Status (1)

Country Link
KR (1) KR20010095618A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040048589A (en) * 2002-12-04 2004-06-10 김건보 Radation shielding body and method for producing the same
KR100709140B1 (en) * 2002-12-04 2007-04-18 김건보 Radiation shielding body and method for producing the shielding body
WO2012154962A3 (en) * 2011-05-11 2013-01-31 Stemrad Ltd. Radiation protection device and methods thereof
KR20180096253A (en) 2017-02-21 2018-08-29 주식회사 더굳인터내셔널 Protector for photographing a medical image
KR20180096254A (en) 2017-02-21 2018-08-29 주식회사 더굳인터내셔널 Protector for photographing a medical image
KR20190026721A (en) 2019-03-06 2019-03-13 주식회사 더굳인터내셔널 Protector for photographing a medical image
US10276273B2 (en) 2015-03-17 2019-04-30 Stemrad Ltd. Device and method for protection from radiation in space
KR20200115792A (en) 2019-03-26 2020-10-08 (주)동원엔텍 Composition for a glove having excellent radiation protection performance and method for manufacturing a glove using the composition
US11276505B2 (en) 2017-08-02 2022-03-15 Stemrad Ltd. Material configuration enabling flexibility of a structure using rigid components
CN115064294A (en) * 2022-06-16 2022-09-16 中国核动力研究设计院 Radiation shielding device for high-temperature annealing of small-size strong radioactive sample

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01124799A (en) * 1987-11-10 1989-05-17 Toshiba Corp Buffer body for radioactive material transporting container
JPH03167499A (en) * 1989-11-27 1991-07-19 Sumitomo Heavy Ind Ltd Radiation shield material excellent in heat removing properties
JPH0763898A (en) * 1993-08-31 1995-03-10 Toshiba Corp X-ray absorbing device
KR0168474B1 (en) * 1994-02-03 1999-04-15 서석천 Method of manufacturing shield clothing radiation
KR200182047Y1 (en) * 1999-12-07 2000-05-15 조문수 Anti-electromagnetic wave clothing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01124799A (en) * 1987-11-10 1989-05-17 Toshiba Corp Buffer body for radioactive material transporting container
JPH03167499A (en) * 1989-11-27 1991-07-19 Sumitomo Heavy Ind Ltd Radiation shield material excellent in heat removing properties
JPH0763898A (en) * 1993-08-31 1995-03-10 Toshiba Corp X-ray absorbing device
KR0168474B1 (en) * 1994-02-03 1999-04-15 서석천 Method of manufacturing shield clothing radiation
KR200182047Y1 (en) * 1999-12-07 2000-05-15 조문수 Anti-electromagnetic wave clothing

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100709140B1 (en) * 2002-12-04 2007-04-18 김건보 Radiation shielding body and method for producing the shielding body
KR20040048589A (en) * 2002-12-04 2004-06-10 김건보 Radation shielding body and method for producing the same
US10600524B2 (en) 2011-05-11 2020-03-24 Stemrad Ltd. Radiation protection device and methods thereof
WO2012154962A3 (en) * 2011-05-11 2013-01-31 Stemrad Ltd. Radiation protection device and methods thereof
EA029204B1 (en) * 2011-05-11 2018-02-28 Стемрад Лтд. Radiation protection device and method for providing protection of active bone marrow in posterior iliac crest from outer ionizing radiation
US10790068B2 (en) 2015-03-17 2020-09-29 Stemrad Ltd. Device and method for protection from radiation in space
US10276273B2 (en) 2015-03-17 2019-04-30 Stemrad Ltd. Device and method for protection from radiation in space
US11222733B2 (en) 2015-03-17 2022-01-11 Stemrad Ltd. Device and method for protection from radiation in space
KR20180096254A (en) 2017-02-21 2018-08-29 주식회사 더굳인터내셔널 Protector for photographing a medical image
KR20180096253A (en) 2017-02-21 2018-08-29 주식회사 더굳인터내셔널 Protector for photographing a medical image
US11276505B2 (en) 2017-08-02 2022-03-15 Stemrad Ltd. Material configuration enabling flexibility of a structure using rigid components
KR20190026721A (en) 2019-03-06 2019-03-13 주식회사 더굳인터내셔널 Protector for photographing a medical image
KR20200115792A (en) 2019-03-26 2020-10-08 (주)동원엔텍 Composition for a glove having excellent radiation protection performance and method for manufacturing a glove using the composition
CN115064294A (en) * 2022-06-16 2022-09-16 中国核动力研究设计院 Radiation shielding device for high-temperature annealing of small-size strong radioactive sample
CN115064294B (en) * 2022-06-16 2024-05-28 中国核动力研究设计院 Radiation shielding device for high-temperature annealing of small-size strong-radioactivity sample

Similar Documents

Publication Publication Date Title
KR20010095618A (en) Material for shielding of radiation and protective equipment preparaed by using the same
US10692616B2 (en) Radiation attenuating protective garments
CN104047173B (en) A kind of permanent anti-electromagnetic radiation fabric
KR101822143B1 (en) soil conditioner using mineral and manufacturing method thereof
KR100581554B1 (en) A clothing protection of radioactivity
US11501888B2 (en) Radiation attenuating protective garments
CN217444082U (en) Flame-retardant nuclear radiation-proof neutron ray-proof biochemical-proof integrated protective clothing
CN107858148A (en) A kind of selenium contamination soil-repairing agent and preparation method thereof
KR200413369Y1 (en) Man panties of protecting electrowaves
JP2987911B2 (en) Tungsten alloy particles and method for producing the same
JP2007061518A (en) Particle of crushed natural ore for hot bathing
CN112807414A (en) Eyesight improving powder for relieving asthenopia and improving eyesight
CN201691095U (en) Electromagnetic radiation elimination dress
KR20070048533A (en) Man panties of protecting electrowaves
RU65730U1 (en) RADIATION PROTECTIVE CLOTHES
KR20100131639A (en) Functional fiber contain precious serpentine
CN212230090U (en) Nuclear radiation protective clothing suit
CN107822223A (en) Radiate far infrared uvioresistant Contamination of Electromagnetic Wave protective garment
CN114506127A (en) Barite medical protective clothing material and preparation method thereof
KR200411870Y1 (en) A clothing protection of radioactivity
JP2002131475A (en) Protective vest against ionizing radiation
RU13137U1 (en) OVERALLS FOR PROTECTION AGAINST RADIATION WITH SCREENING OF SEPARATE HUMAN BODY SURFACE ZONES
CN212938102U (en) Special protection casing of infectious department
CN211742683U (en) Radiation protective clothing for tumor radiotherapy department
DE2609587A1 (en) Cosmic radiation shield for human body - has fabric or noncorrosive metal mesh protection to conduct intercepted rays away via earth wire

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application