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US 2006/0134323 A1Published application
Fluoropolymer film made by printing
OwnerWilliam O'Brieninventor
Life of this patent
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Abstract
Disclosed is a process for forming a patterned fluoropolymer film on a substrate by raised relief printing a fluoropolymer solution with a patterned raised relief printing plate, and drying the solvent from the solution to form the patterned fluoropolymer film. Such fluoropolymer films are useful as antireflective or hydrophobic layers on substrates used in optical displays.
Claims17
A process for forming a patterned fluoropolymer film on a substrate, comprising:
- (a) raised relief printing a fluoropolymer solution on a substrate with a patterned raised relief printing plate thereby forming a patterned fluoropolymer solution layer on said substrate, said fluoropolymer solution comprising fluoropolymer and solvent, and;
- (b) drying said solvent from said patterned fluoropolymer solution layer thereby forming a patterned fluoropolymer film on said substrate.
A process for forming an antireflective film on a substrate comprising:
- (a) flexographic printing a solution of amorphous fluoropolymer onto an optically transparent substrate to form a wet image on said substrate,
- (b) drying the solvent from said wet image to form a fluoropolymer film, the thickness of said fluoropoymer film being controlled and uniform so as to be about ¼ of the wavelength of incident light so as to provide anti-reflectivity of said incident light.
A process for forming an antireflective film on a substrate comprising:
- (a) flexographic printing an adhesion promotor layer onto an optically transparent substrate,
- (b) flexographic printing a solution of amorphous fluoropolymer onto said adhesion promotor layer to form a wet image on said adhesion promotor layer,
- (c) drying the solvent from said wet image to form an amorphous fluoropolymer film, and (d) flexographic printing a hardcoat layer on said amorphous fluoropolymer film, the thickness of the resultant antireflective-film being controlled and uniform so as to be about ¼ of the wavelength of incident light so as to provide anti-reflectivity of said incident light.
Dependencies are inferred from the claim text.