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:
Sep. 12, 2006
Filed:
May. 20, 2003
Tetsuya Imamura, Chiba, JP;
Hideyuki Nawata, Chiba, JP;
Hideyuki Endo, Chiba, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
A liquid crystal alignment treating agent for optical alignment treatment, whereby it is possible to obtain a liquid crystal alignment film which presents a high and stable tilt angle of liquid crystal and which is excellent in an accumulated charge property by a DC voltage, is provided. A liquid crystal alignment treating agent which comprises, as resin components, a polyimide precursor or a polyimide obtained by cyclodehydration of the polyimide precursor, and an acryl polymer having repeating units represented by the formula (II): (wherein Rrepresents a hydrogen atom, a methyl group or a halogen atom, Rrepresents an alkyl group having at least 8 carbon atoms, and k represents a positive represented by the formula (III): (wherein Rand Reach independently represents a hydrogen atom, a methyl group or a halogen atom, Rrepresents an alkyl group having at least 8 carbon atoms, Rrepresents an organic group having an epoxy group, and k and j each represents a positive integer), wherein the acryl polymer having the repeating units represented by the formula (II) or the formula (III) is from 0.01 to 30 wt % based on the whole resin components.