Azeotrope-like compositions and their use

Details Azeotrope-like compositions and their use Azeotrope-like compositions and their use

1996-05-15

1998-09-29

Skane, Christine

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Liquid composition

106311, 134 42, 252 67, C11D 726, C11D 730, C11D 760

Patent

active

058145958

ABSTRACT:
The invention provides azeotrope-like compositions consisting essentially of R.sub.f OC.sub.2 H.sub.5, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and an organic solvent selected from the group consisting of: straight chain, branched chain and cyclic alkanes having 6 to 8 carbon atoms; esters having 4 carbon atoms; ketones having 4 carbon atoms; disiloxanes having 6 carbon atoms; cyclic and acyclic ethers having 4 to 6 carbon atoms; chlorinated alkanes having 3 to 4 carbon atoms and chlorinated alkenes having 2 carbon atoms. The compositions are useful for cleaning, as solvents or carriers for coating and as heat transfer materials.

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