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EP0365584A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Contamination removal process.

Assignee: Polysaccharide Industries PSI AB
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Filing: 1988-06-14
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Granted: —
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Expires: 2008-06-14
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Abstract

Abstract Translated from English Un procédé servant à faciliter l'élimination de substances contaminantes non désirées présentes sur une surface consiste: a) à appliquer une solution contenant un polysaccharide et un solvant pour cette solution sur la surface à traiter, avant qu'elle soit soumise à la substance contaminante, ledit polysaccharide ayant la propriété en séchant de former une pellicule solide redissoluble ou gonflante; b) à laisser sécher la solution ainsi appliquée, de sorte qu'elle forme une pellicule solide sur la surface à traiter; (c) à traiter la surface recouverte par la pellicule avec un liquide ayant la propriété de redissoudre la pellicule ou de permettre le gonflement de celle-ci; et d) à enlever la substance contaminante non desirée en retirant la couche dissoute ou gonflée qui recouvre la surface de la pellicule. One method of facilitating the removal of unwanted contaminating substances from a surface is: a) applying a solution containing a polysaccharide and a solvent for that solution to the surface to be treated, before it is subjected to the contaminating substance , said polysaccharide having the property, on drying, of forming a solid redissoluble or swelling film; b) allowing the solution thus applied to dry, so that it forms a solid film on the surface to be treated; (c) treating the surface covered by the film with a liquid having the property of redissolving the film or allowing it to swell; and d) removing the unwanted contaminating substance by removing the dissolved or swollen layer which covers the surface of the film.

Inventors

  • 👤 Sigfrid Svensson

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 19:48
CPC Classifications
B; B05; B05D; B05D5/00; B05D3/00; B05D3/10; B05D3/107; C; C09; C09D; C09D5/00; C09D5/008; B05D1/00; B05D1/32; B05D1/322; B05D1/327

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