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:
Jan. 14, 1992
Filed:
Jul. 20, 1990
Masakazu Uekita, both Hyogo, JP;
Makoto Murata, both Hyogo, JP;
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
An element of liquid crystal display including an orientation film. The orientation film is obtained by building up at least one monomolecular film on a substrate having thereon at least an electrode layer. The monomolecular film is formed by spreading an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 having a repeating unit represented by formula (I): ##STR1## wherein R.sup.1 represents an aliphatic group having from 12 to 30 carbon atoms; and R.sup.2 represents at least one group selected from the group consisting of ##STR2## on a water surface, and subjecting the built-up film to a heat treatment to cause cyclization.