C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/00 (2006.01) C07C 19/08 (2006.01) C07C 43/12 (2006.01) C09D 7/12 (2006.01)
Patent
CA 2331066
Many widely-used carrier solvents, such as trichlorotrifluoroethane, dichloropentafluoropropane, perfluorocarbons such as perfluorohexane, can cause damage when released into the environment. The present invention is a method for coating a substrate with silicone oil and a carrier solvent less adverse to the environment, and evaporating the carrier solvent to form the substrate coated with the silicone oil. The substrate is a polycarbonate or acrylic resin. The carrier solvent is a mixture of at least one fluorinated solvent selected from (perfluorohexyloxy)methane and tridecafluorohexane, and at least one organic solvent.
Plusieurs solvants de support largement utilisés, comme le trichlorotrifluoroéthane, le dichloropentafluoropropane, les perfluorocarbures comme le perfluorohexane, peuvent causer des dommages lorsqu'ils sont libérés dans l'environnement. La présente invention porte sur une méthode permettant de couvrir un substrat avec de l'huile de silicone et un solvant de support moins néfaste pour l'environnement, et d'évaporer le solvant de support pour former le substrat recouvert d'huile de silicone. Le substrat est un polycarbonate ou une résine acrylique. Le solvant de support est un mélange composé d'au moins un solvant fluoré choisi parmi le (perfluorohexyloxy) méthane et le tridecafluorohexane, et d'au moins un solvant organique.
Hanada Tsuyoshi
Tsuzaki Masaaki
Asahi Glass Company Limited
Smart & Biggar
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