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:
Jun. 07, 1983
Filed:
Jul. 06, 1981
Applicant:
Inventors:
Rinjiro Ichikawa, Otsu, JP;
Chiyoji Hitomi, Otsu, JP;
Assignee:
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; G02B / ; B32B / ;
U.S. Cl.
CPC ...
428215 ; 350370 ; 350337 ; 427163 ; 427124 ; 428334 ; 428335 ; 428336 ; 428411 ; 428416 ; 428418 ; 428419 ; 4284258 ; 428413 ; 428458 ; 428463 ; 428480 ; 428522 ; 428910 ;
Abstract
A laminated light-polarizing sheet comprising a film or sheet of a polymer, especially a phenoxyether polymer, laminated at least on one surface of a light-polarizing film and a transparent conductive layer formed by vacuum metal evaporation etc. on a surface of a film or sheet to the light-polarizing film, wherein the film or sheet has specified ranges of retardation value, heat distortion temperature, average visible light transmittance, water vapor permeability, Izod impact strength and degree of swelling in solvents.