C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 7/30 (2006.01) C11D 7/50 (2006.01) C23G 5/028 (2006.01) F26B 5/00 (2006.01)
Patent
CA 2242726
Pour remplacer le 1,1,2-trichloro-1,2,2-trifluoroéthane et le 1,1-dichloro-1- fluoroéthane dans les compositions de traitement de surfaces solides (notamment défluxage), l'invention propose d'utiliser un mélange quasi azéotropique contenant, en poids, 75 à 95 % du 1,1,1,3,3-pentafluorobutane, 1 à 15 % de chlorure de méthy- lène et 1 à 10 % de méthanol.
Arkema France
Elf Atochem S.a.
Robic
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