The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2016
Filed:
Oct. 30, 2012
Konica Minolta, Inc., Tokyo, JP;
Akihito Hisamitsu, Tokyo, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
Provided are an optical reflective film which is a system that permits the employment of a water-based coating method in view of environmental conservation and which, even in a case where the optical reflective film is produced by simultaneous multilayer coating with high production efficiency, exhibits excellent light reflecting properties at a desired wavelength and a low haze due to the suppression of an interlaminar mixing level and interfacial disorder; and an optical reflector using the same. An optical reflective film including at least one unit obtained by laminating a high refractive index layer and a low refractive index layer on a substrate, wherein the high refractive index layer and the low refractive index layer each contain one or more of polyvinyl alcohols, and when a polyvinyl alcohol having the highest content in the high refractive index layer is referred to as a 'polyvinyl alcohol (A)' and a polyvinyl alcohol having the highest content in the low refractive index layer is referred to as a 'polyvinyl alcohol (B)', a degree of saponification of the polyvinyl alcohol (A) is different from a degree of saponification of the polyvinyl alcohol (B).