C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
6/218, 134/33, 1
C11D 7/50 (2006.01) B01D 12/00 (2006.01) B08B 3/08 (2006.01) C07C 23/06 (2006.01) C07C 31/04 (2006.01) C07C 31/08 (2006.01) C07C 31/10 (2006.01) C07C 31/12 (2006.01) C08J 9/14 (2006.01) C11D 7/30 (2006.01) C23G 5/028 (2006.01) C23G 5/032 (2006.01) C11D 7/24 (2006.01) C11D 7/26 (2006.01) C11D 7/28 (2006.01)
Patent
CA 2187736
To provide an azeotropic composition comprising cis-1, 1, 2, 2, 3, 4-hexafluorocyclobutane and at least one compound selected from the group consisting of methanol, ethanol, isopropanol, n-propanol, tert-butanol, cyclopentane, n-octane, isooctane, n-heptane and methylcyclohexane, and a detergent, drying agent and foaming agent, which use the above-mentioned azeotropic composition. The azeotropic composition of the present invention is an alternative fleon composition having less influence on plastics, being excellent in solvency and having less influence on the ozone layer.
Composition azéotrope renfermant un cis-1,1,2,2,3,4-hexafluorocyclobutane et au moins un composé choisi dans le groupe suivant: méthanol, éthanol, isopropanéol, n-propanol, tert-butanol, cyclopentane, n-octane, iso-octane, n-heptane et méthylcyclohexane; et détergent, agent de déshydratation et agent gonflant renfermant cette composition. Cette composition présente l'avantage de n'exercer que peu d'effets indésirables sur les matières plastiques et de présenter d'excellentes capacités comme détergent tout en portant peu atteinte à la couche d'ozone, ce qui en fait un substitut du chlorofluorocarbone.
Aoyama Hirokazu
Ide Satoshi
Yamamoto Akinori
Daikin Industries Ltd.
Osler Hoskin & Harcourt Llp
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