Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2008-05-20
2008-05-20
Mruk, Brian (Department: 1796)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S174000, C510S183000, C510S185000, C510S188000, C510S466000, C510S475000, C510S505000, C510S506000, C134S008000, C134S022110, C134S022140, C134S022190, C134S038000, C134S039000, C134S040000, C134S042000
Reexamination Certificate
active
07375065
ABSTRACT:
A composition for cleaning a fluid delivery system includes an agent which controls the rheology of the fluid so that its apparent viscosity decreases as the fluid is subjected to a shear force. In particular applications, the viscosity of the composition is greater than 600 centipoise when it is not subject to any shear and less than 600 centipoise when subject to a shear of at least 10 1/sec. The fluid may be thixotropic or a Bingham plastic, in some instances. In a specific embodiment, the viscosity of the composition is greater than 3000 centipoise when it is not subject to shear, less than 3000 centipoise at a shear of 10 1/sec, less than 1000 centipoise at a shear of 30 1/sec, and less than 600 centipoise at a shear of 60 1/sec. Also disclosed are methods for cleaning a fluid delivery system with these compositions.
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Maxwell Jeffrey
Summerfield Stephen
Gage Products Company
Gifford Krass Anderson Sprinkle & Citkowski
Mruk Brian
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