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1. WO1992018984 - PROCESS FOR REDUCING THE EXPOSURE TO RADON IN CLOSED SPACES

Publication Number WO/1992/018984
Publication Date 29.10.1992
International Application No. PCT/CH1992/000063
International Filing Date 06.04.1992
IPC
G21F 1/10 2006.1
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
1Shielding characterised by the composition of the material
02Selection of uniform shielding materials
10Organic substances; Dispersions in organic carriers
CPC
G21F 1/10
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
1Shielding characterised by the composition of the materials
02Selection of uniform shielding materials
10Organic substances; Dispersions in organic carriers
Applicants
  • HESCO AG INDUSTRIECONSULTING & INDUSTRIEVERTRETUNGEN [CH]/[CH] (AllExceptUS)
  • HESS, Josef [CH]/[CH] (UsOnly)
  • JOCHMANN, Ludwig [CH]/[CH] (UsOnly)
Inventors
  • HESS, Josef
  • JOCHMANN, Ludwig
Agents
  • TIEMANN, Ulrich
Priority Data
1046/91-009.04.1991CH
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR VERRINGERUNG DER RADONBELASTUNG IN GESCHLOSSENEN RÄUMEN
(EN) PROCESS FOR REDUCING THE EXPOSURE TO RADON IN CLOSED SPACES
(FR) PROCEDE POUR LA REDUCTION DE L'EXPOSITION AU RADON DANS LES ESPACES CLOS
Abstract
(DE) Zur Verringerung der Radonbelastung in geschlossenen Räumen wird auf die Begrenzungsflächen eine wässrige, lösungsmittel- und weichmacherfreie Dispersion eines Vinylidenchlorid-Acrylsäureester-Copolymerisats aufgetragen und trocknen gelassen. Die Dispersion enthält ausserdem ein nichtionisches Tensid auf der Basis eines Alkylphenol-Ethoxylats mit einem Anteil von 10 Mol Ethylenoxid, ein Vinylpyrrolidon-Copolymer und einem Entschäumer.
(EN) To reduce the exposure to radon in closed spaces, an aqueous, solvent and softener-free dispersion of a vinylidene chloride-acrylic acid ester copolymer is applied to the boundary surfaces and allowed to dry. The dispersion also contains a non-ionic tenside based on an alkyl phenol ethoxylate with a proportion of 10 mol ethylene oxide, a vinyl pyrrolidone copolymer and an anti-foaming agent.
(FR) Pour réduire l'exposition au radon dans les espaces clos, on dépose et on fait sécher sur les surfaces de séparation une dispersion aqueuse et ne comportant ni solvant ni plastifiant d'un copolymère de chlorure de vinylidène et d'ester acrylique. La dispersion comporte également un tensio-actif non ionique à base d'un éthoxylate d'alkylphénol avec une proportion de 10 moles d'oxyde d'éthylène, un copolymère de la vinylpyrrolidone et un antimousse.
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