Coating processes – Optical element produced – Transparent base
Reexamination Certificate
2006-04-04
2006-04-04
Bareford, Katherine (Department: 1762)
Coating processes
Optical element produced
Transparent base
C427S011000, C427S429000
Reexamination Certificate
active
07022374
ABSTRACT:
A liquid which has a negative static electrical charge is pre-coated onto a paper or fabric towel and the coated, negative static electrically charged paper or fabric towel is rubbed onto positive, static electrically charged glass windows, automobile and truck windshields, and glass mirrors in sufficient quantity to cause the surfaces to become negatively charged. Since like static electrical charges will repel each other, the negative static electrically charged liquid will repel negative static electrically charged human fibers, dust and other negatively charged fibers. If the film is not thin, the coating will be streaked. The coating is water insoluble and preferably is a water insoluble silicone oil, preferably in an amount of at least 70% silicone and most preferably comprises liquid polydimethylsiloxane. The coating can be mixed with a water insoluble, silicone soluble, liquid comprising the remaining 30% or less. The resulting composition should have a viscosity substantially in the range of 5 to 50 centistokes.
REFERENCES:
patent: 3498923 (1970-03-01), Zisman et al.
patent: 4420578 (1983-12-01), Hagens et al.
patent: 4511489 (1985-04-01), Requejo et al.
patent: 5415927 (1995-05-01), Hirayama et al.
Bareford Katherine
Foster Frank H.
Kremblas, Foster Phillips & Pollick
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