Low reflective films
AssigneeCPFilms Inc.
InventorsAnthony Brian Port, Elizabeth Jean Packer, Aravinda Parnandi, Richard J. Ward, Steven Allen Barth, James P. Enniss, Simon John Porter
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Abstract
An anti-reflecting film is made from a polymeric film substrate consisting of cellulose acetate, polyamide or polyester. The substrate is coated with at least two polymeric layers. An outer layer is comprised of a fluorine containing polymer. Between the outer layer and the substrate is an intermediate layer of an organometallic polymeric layer. The organometallic polymeric layer is comprised of the condensation product of a metal alkoxide and a polymer reactive with the metal oxide.
Claims32
An anti-reflective film comprising a transparent polymeric film substrate coated with at least two polymeric layers, the two layers being an exposed outer polymeric layer comprising a fluorine containing polymer and immediately adjacent thereto an inner organometallic polymeric layer adjacent the exposed outer layer comprising the condensation product of a metal alkoxide and a polymer reactive with the metal alkoxide.
An anti-reflective film comprising a transparent polymeric film substrate, an exposed outer polymeric layer comprising fluoro-containing polymers having a refractive index not greater than 1.45 and a thickness of about {fraction (1/4)} wavelength and an inner polymeric layer adjacent the exposed outer layer containing metal oxide and having a refractive index of at least about 1.6 and a thickness of about {fraction (1/4)} wavelength.
A multilayer anti-reflective film comprising a transparent polymeric film substrate and including as one of its layers a transparent polymeric layer containing inorganic powder particles having a refractive index greater than 2.6.
A multilayer anti-reflective film comprising a transparent polymeric film substrate and including as one of its layers a transparent coloured polymeric layer containing inorganic powdered particles which impart the coloration to said layer, and raise the refractive index of said layer to at least 1.6.
A method of manufacture of an anti-reflective film in which method a reaction mixture of a metal alkoxide and a silane modified polymer is coated onto a transparent film substrate and cured to form an inner polymeric layer, and a further layer of a fluorine containing polymer is coated over the inner layer, and is cured to form an exposed outer polymeric layer.
A method of manufacture of an anti-reflective film laminate in which method particles of metal oxide are dispersed in a liquid polymeric material, and the polymeric material is coated onto a polymeric film substrate and cured to give a transparent inner polymeric layer having a refractive index of at least about 1.6 and a thickness of about {fraction (1/4)} wavelength, and the inner polymeric layer is overcoated by a further transparent polymeric layer of fluorine containing polymer which is cured to give an outer polymeric layer having a refractive index of not greater than 1.45 and a thickness of about {fraction (1/4)} wavelength.
A method of making a multilayer anti-reflective film in which a polymeric film substrate is coated with a transparent polymer layer containing inorganic powdered material dispersed within the layer, the powder particles having a high refractive index of greater than 2.6, the film having a haze value of less than 20%.
A method of manufacture of a multilayer anti-reflective polymeric film having at least a two layer anti-reflective coating, wherein the inner layer of said two layers has a refractive index of at least 1.69 and comprises particles of iron oxide dispersed in a curable polymeric resin to form a transparent high refractive index layer.
A method of making an anti-reflective film in which a polymeric film substrate is coated with a transparent polymer layer containing inorganic powdered material dispersed within the layer to form a coloured transparent film, having a refractive index of at least 1.6.
Dependencies are inferred from the claim text.