Azeotropic and azeotrope-like compositions of...

C - Chemistry – Metallurgy – 09 – K

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Details

C09K 3/30 (2006.01) A62D 1/00 (2006.01) C08J 9/14 (2006.01) C09K 5/04 (2006.01) C11D 7/50 (2006.01)

Patent

CA 2684290

Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, n-pentane, 2-methylbutane,, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, n-butane or isobutane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.

L'invention concerne des compositions azéotropiques ou ressemblant à des azéotropes. Les compositions azéotropiques ou ressemblant à des azéotropes sont des mélanges de E-1,1,1,4,4,4-hexafluoro-2-butène avec du formiate de méthyle, du n-pentane, du 2-méthylbutane, du trans-1,2-dichloroéthylène, du 1,1,1,3,3-pentafluoropropane, du n-butane ou de l'isobutane. L'invention concerne également un procédé de préparation d'une mousse thermoplastique ou thermodurcie utilisant de telles compositions azéotropiques ou ressemblant à des azéotropes en tant qu'agents d'expansion. L'invention concerne également un procédé de production de froid utilisant de telles compositions azéotropiques ou ressemblant à des azéotropes. L'invention concerne également un procédé d'utilisation de telles compositions azéotropiques ou ressemblant à des azéotropes en tant que solvants. L'invention concerne également un procédé de production d'un produit aérosol utilisant de telles compositions azéotropiques ou ressemblant à des azéotropes. L'invention concerne également un procédé d'utilisation de telles compositions azéotropiques ou ressemblant à des azéotropes en tant que milieux caloporteurs. L'invention concerne également un procédé d'extinction d'un feu ou de lutte active contre celui-ci utilisant de telles compositions azéotropiques ou ressemblant à des azéotropes. L'invention concerne également un procédé d'utilisation de telles compositions azéotropiques ou ressemblant à des azéotropes en tant que diélectriques.

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