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:
May. 21, 1996
Filed:
Jan. 11, 1995
Applicant:
Inventors:
Yasuo Hara, Yokohama, JP;
Hironobu Shinohara, Tokyo, JP;
Assignee:
Japan Synthetic Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
430 13 ; 430 11 ; 430 18 ; 428337 ; 428339 ; 428500 ;
Abstract
An optical film with a pattern formed by applying a photosensitive composition to the surface of a transparent film and by irradiating the photosensitive composition. The transparent film is made of a thermoplastic resin having a retardation of 30 nm or less, a deflection temperature under load of 100.degree. C. or higher, a transmittance in the visible light region of 85% or higher, and a refractive index of 1.45-1.59. The optical film has optical characteristics as excellent as glass. It has superior heat resistance, more flexible, more easily processed, and lighter in weight than glass bases.