Polysilazane-containing coating solution

Details Polysilazane-containing coating solution Polysilazane-containing coating solution

C - Chemistry, Metallurgy

09

D

C09D 183/16 (2006.01) A61K 6/087 (2006.01) A61K 6/093 (2006.01) C04B 41/49 (2006.01) C04B 41/50 (2006.01) C04B 41/87 (2006.01) C08K 3/00 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2500321

A coating solution comprising 0.1 to 35% by weight of an inorganic or organic polysilazane having repeating units represented by the general formula below and soluble in a solvent and 0.1 to 10% by weight of catalyst such as 4,4'- trimethylenebis(1-methylpiperidine) based on a pure polysilazane content. By applying the coating solution onto the surface of base materials such as metals, plastics, glass, ceramic, wood, cement, mortar, bricks, etc., a silica coating strongly adhered to the base materials can be formed excellent in corrosion resistance and anti-scratch properties and simultaneously excellent in characteristics such as abrasion resistant, long-lasting anti-fouling properties, wetting properties to water, sealing properties, chemical resistance, oxidation resistance, physical barrier effect, heat resistance, fire resistance and antistatic properties.

Solution de revêtement comprenant 0,1 à 35 % en poids d'un polysilazane inorganique ou organique soluble dans un solvant possédant des unités récurrentes et représenté par la formule (I), ainsi que 0,1 à 10 % en poids d'un catalyseur, tel que 4,4'-triméthylènebis(1-méthylpipéridine) sur la base d'une teneur en polysilazane pur. L'application de cette solution de revêtement sur la surface de matériaux de base, tels que des métaux, des plastiques, du verre, de la céramique, du bois, du ciment, du mortier ou de la brique permet d'obtenir un revêtement de silice adhérant fortement à ces matériaux de base et possédant des caractéristiques excellentes de résistance à la corrosion, aux rayures et à l'abrasion, un effet antisalissures de longue durée, une excellente aptitude au mouillage, de résistance aux attaques chimiques, à l'oxydation, à la chaleur, au feu et, également, des caractéristiques d'étanchéité, de barrière physique et antistatiques.

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