B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 5/08 (2006.01) B05D 5/00 (2006.01) B08B 17/00 (2006.01) B08B 17/04 (2006.01) C08L 5/00 (2006.01) C09D 5/00 (2006.01) C09D 101/28 (2006.01) C09D 105/00 (2006.01) C09D 105/14 (2006.01) C09K 3/18 (2006.01)
Patent
CA 2186131
A process for protecting a surface from non-desired contamination and for facilitating removal of said contamination from said surface, characterized by the steps: a) preparing a solution of polysaccharides containing at least two components, wherein one component is constituted by a first polysaccharide which, when precipitated from a solution by evaporation of the solvent thereof, directly forms a film, and wherein the second component is constituted by a second polysaccharide which, when precipitated from a solution by evaporation of the solvent thereof, forms a film via at least partial gel formation, or by interaction with said first polysaccharide, said films being redissolvable or swellable; b) applying the solution from step a) onto said surface before subjected to contamination; c) allowing the applied solution to dry so as to form a solid film on said surface via at least partial gel formation; d) treating the film-coated surface with a liquid capable of redissolving film or provided swelling thereof; and e) removing the non-desired contamination by complete or partial removal of the film from the surface.
Système permettant de protéger une surface contre les souillures et facilitant l'enlèvement desdites souillures. Ce système se caractérise par les étapes suivantes: a) préparation d'une solution de polysaccharides renfermant au moins deux composants, dont l'un est constitué par un premier polysaccharide qui, précipité d'une solution par évaporation de son solvant, forme directement un film. Le deuxième composant est constitué par un deuxième polysaccharide qui, précipité d'une solution par évaporation de son solvant, forme un film par formation, au moins partielle, d'un gel, ou par interaction avec le premier polysaccharide, lesdits films pouvant être à nouveau dissous ou gonflés; b) application de la solution issue de l'étape a) sur la surface pouvant être exposée à des souillures; c) séchage de la solution appliquée, de manière à obtenir un film solide sur cette surface par formation, au moins partielle, d'un gel; d) traitement de la surface enduite d'un film par un liquide capable de redissoudre ce film ou de provoquer son gonflement; et e) enlèvement des souillures par enlèvement total ou partiel du film de sa surface.
Polysaccharide Industries Ab Psi
Sim & Mcburney
LandOfFree
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