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Multilayer elastomeric material filled with radiation-attenuating compounds, preparation method and uses thereof

A kind of elastomer material, elastomer technology, applied in the field of manufacture of articles for radiation protection, especially X-ray and/or gamma ray radiation

Inactive Publication Date: 2008-09-03
HUTCHINSON SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disappearance of the interface between the filler and the matrix, as well as the fluidity of the liquid dispersed phase, greatly suppresses the hardening effect of the filler that leads to poor flexibility and comfort properties of existing products

Method used

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  • Multilayer elastomeric material filled with radiation-attenuating compounds, preparation method and uses thereof
  • Multilayer elastomeric material filled with radiation-attenuating compounds, preparation method and uses thereof
  • Multilayer elastomeric material filled with radiation-attenuating compounds, preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] figure 1 B is shown according to the present invention similar to figure 1 The material shown in A, but with layer L1 also having a silk screen on top of it. Example 1: Preparation of an elastomer solution for the preparation of a radiopaque intermediate layer L2

[0055] An elastomer solution B1 useful for the preparation of the radiopaque intermediate layer L2 was prepared, said solution having the following composition:

[0056] -SEBS copolymer (trade name: G1652, Kraton Polymers) 41.0g

[0057] - Paraffin oil (plasticizer) (trade name: 352, Esso) 29.0g

[0058] -Cyclohexane (total) 200.0g

[0059] - Radiopaque substance: bismuth trioxide (Bi 2 o 3 ) 318.0g

[0060] - Diluent for the emulsion of the dispersed phase: polyethylene glycol (PEG 200) 79.0 g

[0061] The continuous phase of the emulsion consists of about 13 wt% of G1652 copolymer and used as plasticizer 352 blend of mineral oils. In this mixture, the weight ratio of elastomer / plasticizer i...

Embodiment 2

[0064] Example 2: Preparation of an elastomer solution for the preparation of a radiopaque intermediate layer L2

[0065] An elastomer solution B2 useful for preparing a radiopaque intermediate layer L2 was prepared, said solution having the following composition:

[0066] - G1652 28.0g

[0067] - 352 29.0g

[0068] -Cyclohexane 224.0g

[0069] -Ortho-xylene 28.0g

[0070] -Bi 2 o 3 256.0g

[0071] - Diluent for emulsion of dispersed phase: gelatin / water / PEG 200 64.0g

[0072] The continuous phase of the emulsion consists of about 10 wt% of G1652 copolymer and used as plasticizer 352 blend of mineral oils. In this mixture, the weight ratio of elastomer / plasticizer is 100 / 100. To dissolve the copolymer / plasticizer mixture, the plasticized elastomer was contacted with the solvent for 1 hour and 30 minutes. The solvent comprised a mixture of cyclohexane (total) and o-xylene (total) in a weight ratio of 88 / 12.

[0073] The co...

Embodiment 3

[0076] Example 3: Preparation of Elastomeric Solutions for the Preparation of Radiopaque Intermediate Layers Containing Bismuth Trioxide in Two-Phase Emulsions

[0077] An elastomer solution B3 useful for the preparation of the radiopaque intermediate layer L2 was prepared, said solution having the following composition:

[0078] - G1652 40.0g

[0079] - 352 28.0g

[0080] -Cyclohexane 210.0g

[0081] -Bi 2 o 3 724.0g

[0082] - Diluent for the emulsion of the dispersed phase: PEG 200 72.0 g

[0083] Continuous phase emulsions include G1652 copolymer and used as plasticizer 352 blend of mineral oils (approximately 8% by weight relative to solids content). In this mixture, the weight ratio of elastomer / plasticizer is 100 / 70. To dissolve the copolymer / plasticizer mixture, the plasticized elastomer was contacted with the solvent for 1 hour and 30 minutes. The solvent used was cyclohexane (total). Bi 2 o 3 Added to the continuo...

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Abstract

The present invention relates to a multilayer elastomeric material having the property of attenuating radiation such as, for example, X-ray and gamma radiation, to its preparation method, and also to its use for manufacturing articles for protection against radiation, in particular X-ray and / or gamma radiation. The multilayer elastomeric material of the invention includes at least two outer layers L1 and L3 having a middle layer L2 therebetween, which is formed by an elastomer basal body including at least a droplet dispersion containing at least an adiactinic physical combination, wherein the volume fracton Phiv of the adiactinic matter in the layer L2 is larger or equal to 20%. The combination is liquid or gel and the adiactinic matter is in the form of solid particle.

Description

technical field [0001] The present invention relates to a multilayer elastomeric material with properties of reducing radiation such as X-ray and gamma-ray radiation, a method for the preparation of the multilayer elastomeric material, and its use in the manufacture of protection against radiation, especially X-rays and / or gamma-rays The use of irradiated items. Background technique [0002] In the past hundred years, diagnostic radiology, nuclear medicine, and radiotherapy have been greatly developed, and they are becoming indispensable and indisputable tools in all fields of medicine. Although it has many advantages over its inherent ionizing radiation, especially X-ray and gamma-ray radiation, the increasing use of this technology exposes ordinary people to increased doses. This exposure particularly affects medical personnel who are exposed to radiation on an almost daily basis, leading to cumulative doses that pose a risk to their health. This occurs in particular in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F1/12G21F1/00G21F3/00B29C41/22B29C41/14
CPCG21Y2004/10G21Y2004/30Y10T428/31931G21Y2002/203Y10T428/264G21F1/12G21Y2002/501Y10T428/269Y10T428/31504G21Y2002/201G21F3/02G21Y2002/304Y10T428/31551Y10T428/31826Y10T428/265Y10T428/24967
Inventor 菲利普·桑塔格皮埃尔·赫尔纳拉菲·克里科里安
Owner HUTCHINSON SA