Fluorosurfactant with disproportionate effect

Details Fluorosurfactant with disproportionate effect Fluorosurfactant with disproportionate effect

2011-06-21

2011-06-21

Eashoo, Mark (Department: 1767)

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Specific organic component

C568S615000, C568S619000, C568S676000, C568S677000, C568S683000, C424S070110, C424S070120, C424S070190, C424S070310, C549S214000, C252S008620

Reexamination Certificate

active

07964552

ABSTRACT:
This invention relates to surfactant compositions comprising a fluorosurfactant and a siloxane surfactant wherein the fluorosurfactant exhibits a disproportionate effect upon the resulting surfactant composition's ability to lower equilibrium surface tension. The fluorosurfactants and siloxane surfactants identified by the present invention exhibit a desirable disproportionate effect from the fluorosurfactant acting upon the resulting surfactant composition's ability to lower equilibrium surface tension. Because of this disproportionate effect, surfactant compositions of the present invention with no more than 21 weight percent fluorosurfactant have nearly identical ability to lower equilibrium surface tensions compared with surfactant compositions having higher amounts of fluorosurfactant. Such a disproportionate effect is desirable because it permits the use of lower amounts of the more costly fluorosurfactant and higher amounts of the less costly siloxane without significantly deteriorating equilibrium surface tension.

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