GB2118410A - Protective articles - Google Patents

Protective articles Download PDF

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Publication number
GB2118410A
GB2118410A GB08207038A GB8207038A GB2118410A GB 2118410 A GB2118410 A GB 2118410A GB 08207038 A GB08207038 A GB 08207038A GB 8207038 A GB8207038 A GB 8207038A GB 2118410 A GB2118410 A GB 2118410A
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GB
United Kingdom
Prior art keywords
fabric
article
layers
polyurethane
layer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB08207038A
Other versions
GB2118410B (en
Inventor
Robert B Wardley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WARDRAY PRODUCTS
Original Assignee
WARDRAY PRODUCTS
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 WARDRAY PRODUCTS filed Critical WARDRAY PRODUCTS
Priority to GB08207038A priority Critical patent/GB2118410B/en
Publication of GB2118410A publication Critical patent/GB2118410A/en
Application granted granted Critical
Publication of GB2118410B publication Critical patent/GB2118410B/en
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/12—Laminated shielding materials
    • G21F1/125—Laminated shielding materials comprising metals

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Laminated Bodies (AREA)

Abstract

An article affording protection against radiation, and especially against X-Rays comprises at least one flexible layer of lead filled material in an envelope of, or sandwiched between two layers of a knitted, woven or non- woven fabric preferably of synthetic fibrous material, carrying on its outer surface a coating of flexible polyurethane. The outer fabric provides a resilient an extremely tough and cut resistant covering for the relatively soft lead filled material.

Description

SPECIFICATION Protective articles This invention relates to articles affording protection against radiation and especially to articles affording protection against X-rays.
Flexible articles such as aprons, screens, gloves, curtains and the like affording protection against X-rays generally comprise at least one layer of a lead filled rubber or synthetic polymer such as PVC.
These lead filled materials are relatively soft and are very easily cut or split for example by contact with sharp edges on X-ray equipment and the like. It has been proposed to provide articles made of such X-ray protective materials covered with an outer layer affording protection against cutting and/or splitting of the X-ray protective material. As such coating layers there have been proposed PVC and nylon sheeting but neither of these two materials is sufficiently tough to withstand the normal wear and tear in a modern X-ray department and the covering layers frequently split as readily as the underlying X-ray protective materials.
This invention is based on the observation that polyurethane coated fabrics provide a resilient and extremely tough and cut resistant covering for X-ray protective materials and accordingly, the invention provides an article affording protection against radiation comprising at least one flexible layer of a lead filled material in an envelope of or sandwiched between two layers of a knitted, woven or nonwoven fabric, preferably of synthetic fibrous material, carrying on its outer surface a coating of flexible polyurethane.
The fabric is preferably a warp knitted fabric and is preferably a nylon fabric although fabrics made of other synthetic fibres such as polyethylene terephthalate may be used.
The fabric is preferably coated only on one surface with a polyurethane coating but it may if desired be coated on both surfaces.
The article which may be of any desired shape or configuration may, for example, be produced by assembling sequentially a layer of polyurethane coated fabric, one or more layers of lead filled material and a second layer of polyurethane coated fabric, the polyurethane coatings on the two fabric layers being outermost, and taken simultaneously cutting the article to the desired shape and sealing the edges of the article, for example, by high frequency radiation.
Alternatively, of course, the various layers can be cut to shape before assembly by sealing the edges of the article.
Although it may be possible using a sealing technique to form an article in which the welds are sufficiently strong to withstand normal useage, it is desirable and frequently necessary to bind the edges of the article with a binding tape or to stitch them to give added support and to prevent separation of the layers.
CLAIMS (filed on 25.1.83) 1. An article affording protection against radiation comprising at least one flexible layer of a lead filled material in an envelope of, or sandwiched between two layers of a knitted, woven or nonwoven fabric, carrying on its outer surface a coating of flexible polyurethane.
2. An article according to Claim 1, wherein the fabric is a warp knitted fabric.
3. An article according to Claim 1 or Claim 2, wherein the fabric is a fabric made of synthetic fibres.
4. An article according to Claim 3, wherein the fabric is a nylon fabric.
5. An article according to any one of Claims 1 to 4, wherein the fabric is coated only on one surface with the polyurethane coating.
6. A method of producing an article according to any one of Claims 1 to 5, which comprises assembling sequentially a layer of polyurethane coated fabric, one or more layers of lead filled material and a second layer of polyurethane coated fabric, the polyurethane coatings on the two fabric layers being outermost, and then simultaneously cutting the article to the desired shape and sealing the edges of the article to bond the layers together.
7. A method of producing an article according to Claim 1, wherein the various layers of material forming the article are cut to shape and assembled, and the edges of the article are sealed to bond the various layers together.
8. A method according to Claim 6 or Claim 7, wherein the edges of the article are bound with a binding tape or are stitched through.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Protective articles This invention relates to articles affording protection against radiation and especially to articles affording protection against X-rays. Flexible articles such as aprons, screens, gloves, curtains and the like affording protection against X-rays generally comprise at least one layer of a lead filled rubber or synthetic polymer such as PVC. These lead filled materials are relatively soft and are very easily cut or split for example by contact with sharp edges on X-ray equipment and the like. It has been proposed to provide articles made of such X-ray protective materials covered with an outer layer affording protection against cutting and/or splitting of the X-ray protective material. As such coating layers there have been proposed PVC and nylon sheeting but neither of these two materials is sufficiently tough to withstand the normal wear and tear in a modern X-ray department and the covering layers frequently split as readily as the underlying X-ray protective materials. This invention is based on the observation that polyurethane coated fabrics provide a resilient and extremely tough and cut resistant covering for X-ray protective materials and accordingly, the invention provides an article affording protection against radiation comprising at least one flexible layer of a lead filled material in an envelope of or sandwiched between two layers of a knitted, woven or nonwoven fabric, preferably of synthetic fibrous material, carrying on its outer surface a coating of flexible polyurethane. The fabric is preferably a warp knitted fabric and is preferably a nylon fabric although fabrics made of other synthetic fibres such as polyethylene terephthalate may be used. The fabric is preferably coated only on one surface with a polyurethane coating but it may if desired be coated on both surfaces. The article which may be of any desired shape or configuration may, for example, be produced by assembling sequentially a layer of polyurethane coated fabric, one or more layers of lead filled material and a second layer of polyurethane coated fabric, the polyurethane coatings on the two fabric layers being outermost, and taken simultaneously cutting the article to the desired shape and sealing the edges of the article, for example, by high frequency radiation. Alternatively, of course, the various layers can be cut to shape before assembly by sealing the edges of the article. Although it may be possible using a sealing technique to form an article in which the welds are sufficiently strong to withstand normal useage, it is desirable and frequently necessary to bind the edges of the article with a binding tape or to stitch them to give added support and to prevent separation of the layers. CLAIMS (filed on 25.1.83)
1. An article affording protection against radiation comprising at least one flexible layer of a lead filled material in an envelope of, or sandwiched between two layers of a knitted, woven or nonwoven fabric, carrying on its outer surface a coating of flexible polyurethane.
2. An article according to Claim 1, wherein the fabric is a warp knitted fabric.
3. An article according to Claim 1 or Claim 2, wherein the fabric is a fabric made of synthetic fibres.
4. An article according to Claim 3, wherein the fabric is a nylon fabric.
5. An article according to any one of Claims 1 to 4, wherein the fabric is coated only on one surface with the polyurethane coating.
6. A method of producing an article according to any one of Claims 1 to 5, which comprises assembling sequentially a layer of polyurethane coated fabric, one or more layers of lead filled material and a second layer of polyurethane coated fabric, the polyurethane coatings on the two fabric layers being outermost, and then simultaneously cutting the article to the desired shape and sealing the edges of the article to bond the layers together.
7. A method of producing an article according to Claim 1, wherein the various layers of material forming the article are cut to shape and assembled, and the edges of the article are sealed to bond the various layers together.
8. A method according to Claim 6 or Claim 7, wherein the edges of the article are bound with a binding tape or are stitched through.
GB08207038A 1982-03-10 1982-03-10 Protective articles Expired GB2118410B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08207038A GB2118410B (en) 1982-03-10 1982-03-10 Protective articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08207038A GB2118410B (en) 1982-03-10 1982-03-10 Protective articles

Publications (2)

Publication Number Publication Date
GB2118410A true GB2118410A (en) 1983-10-26
GB2118410B GB2118410B (en) 1985-09-11

Family

ID=10528914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08207038A Expired GB2118410B (en) 1982-03-10 1982-03-10 Protective articles

Country Status (1)

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GB (1) GB2118410B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566315A1 (en) * 1992-04-13 1993-10-20 Bradley Barnes Ultra-violet ray shield
EP0649148A1 (en) * 1993-10-13 1995-04-19 Donald Weir Radiation-shielding material
WO2004023492A1 (en) * 2002-09-05 2004-03-18 Yuri Sergeyevich Alexeyev Radiation protection elastomeric material and the method for production thereof
WO2004023493A1 (en) * 2002-09-05 2004-03-18 Yuri Sergeyevich Alexeyev Radiation protection laminate material and the method for production thereof
WO2011018459A1 (en) 2009-08-14 2011-02-17 Mavig Gmbh Coated microfibrous web and method for producing the same
CN102890973A (en) * 2011-07-18 2013-01-23 丁浩旻 Filter, insbesondere atemluftfilter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954593A (en) * 1962-01-16 1964-04-08 Gentex Corp Shield for ionizing radiations

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954593A (en) * 1962-01-16 1964-04-08 Gentex Corp Shield for ionizing radiations

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566315A1 (en) * 1992-04-13 1993-10-20 Bradley Barnes Ultra-violet ray shield
EP0649148A1 (en) * 1993-10-13 1995-04-19 Donald Weir Radiation-shielding material
US5525408A (en) * 1993-10-13 1996-06-11 Weir; Donald Radiation - shielding material
WO2004023492A1 (en) * 2002-09-05 2004-03-18 Yuri Sergeyevich Alexeyev Radiation protection elastomeric material and the method for production thereof
WO2004023493A1 (en) * 2002-09-05 2004-03-18 Yuri Sergeyevich Alexeyev Radiation protection laminate material and the method for production thereof
DE102009037565A1 (en) 2009-08-14 2011-02-24 Mavig Gmbh Coated microfiber web and method of making the same
WO2011018459A1 (en) 2009-08-14 2011-02-17 Mavig Gmbh Coated microfibrous web and method for producing the same
US8803115B2 (en) 2009-08-14 2014-08-12 Mavig Gmbh Coated microfibrous web and method for producing the same
CN102890973A (en) * 2011-07-18 2013-01-23 丁浩旻 Filter, insbesondere atemluftfilter
WO2013010535A2 (en) 2011-07-18 2013-01-24 Ding Haomin Filter, especially respiratory air filter
DE102011051902A1 (en) 2011-07-18 2013-01-24 Haomin Ding Filter, in particular breathing air filter
WO2013010535A3 (en) * 2011-07-18 2013-12-12 Ding Haomin Filter, especially respiratory air filter
CN102890973B (en) * 2011-07-18 2015-12-02 丁浩旻 Mounted air filter for breathing
DE112012000297B4 (en) * 2011-07-18 2020-08-06 Haomin Ding Respirator mask with a filter element and device for shielding radiation from the filter residue

Also Published As

Publication number Publication date
GB2118410B (en) 1985-09-11

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Legal Events

Date Code Title Description
727 Application made for amendment of specification (sect. 27/1977)
727A Application for amendment of specification now open to opposition (sect. 27/1977)
727B Case decided by the comptroller ** specification amended (sect. 27/1977)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960310