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:
Apr. 18, 2000
Filed:
Dec. 17, 1997
Yoshio Tsujimoto, Tokyo, JP;
Hiroyasu Ishikawa, Yokohama, JP;
Jun Mukai, Inagi, JP;
Teruaki Yamanashi, Hiratsuka, JP;
Toshihiro Ichizuka, Tokyo, JP;
Kenji Hosaki, Yokohama, JP;
Nippon Petrochemicals, Co., Ltd, Tokyo, JP;
Abstract
To provide a film for optical element made of liquid crystal polymer whose productivity and economical efficiency are improved; a laminated sheet formed by bonding this film to a polarizing plate; and an optical element which can be optically inspected, and used under an environment of high temperature and high moisutre, and whose surface hardness is so high that the surface is not easily damaged. A long laminated sheet for optical element comprising a liquid crystal polymer layer, and a polarizing film layer; and a long laminated sheet for optical element comprising at least a liquid crystal polymer film layer oriented in the direction oblique to the MD direction at a given angle, and a polarizing film layer. An optical element having a laminated structure formed by laminating a layer of a cured acrylic resin having optical isotropy, an orientated liquid crystal polymer layer, a layer of pressure-sensitive adhesive, and a translucent base layer in that order, and a long laminated sheet for optical element having a laminated structure formed by laminating a layer of a cured acrylic resin having optical isotropy; an oriented liquid crystal polymer layer; a layer of pressure-sensitive adhesive; and a translucent base layer in that order, and a containing liquid crystal polymers orientated in the MD direction at an arbitrary angle.