Stock material or miscellaneous articles – Composite – Of silicon containing
Reexamination Certificate
2008-03-11
2008-03-11
Gulakowski, Randy (Department: 1796)
Stock material or miscellaneous articles
Composite
Of silicon containing
C428S411100, C428S421000, C428S446000
Reexamination Certificate
active
10486253
ABSTRACT:
The present invention is to provide a stain resistant film that shows excellent stain resistance in a long period of time immediate after forming the film, which exhibits stain resistance in initial use (within one month after forming the film) and keeps the resistance from reduction thereof with time. A stain resistant protective film comprising (a) a base layer formed from a film-forming resin and containing a hydrophilic stain resistant agent therein, and (b) a-surface layer containing another hydrophilic stain resistant agent at least, remaining on the periphery of the surface, formed on the base layer (a).
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3M Innovative Properties Company
Blank Colene H.
Gulakowski Randy
Kugel Timothy J.
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