Nissan Chemical Industries Limited

Rie Sakai

Tatsuya Nogami

Takeshi Hosoya

Takakazu Nakada

A coating film having a refractive index of from 1.28 to 1.38 and a contact angle of water of from 90.degree. to 115.degree., adhered on a substrate surface, and prepared by reacting a particular tetraalkylsilicate, a particular fluorine-containing silicon compound, a particular hydroxy-containing compound, and oxalic acid in a particular range of ratios and in the absence of water, and under further specified reaction conditions.

Coating film having water repellency and low refractive index

A process for forming a liquid crystal vertical alignment film on an electrode substrate surface, which comprises preparing a reaction mixture comprising a silicon compound (A) of the following formula (1):

Process for forming a liquid crystal vertical alignment film

Disclosed is a liquid coating composition for forming a liquid crystal display element insulating film, which comprises a solution to be obtained by hydrolysis of Si(OR).sub.4 in the presence of an alkaline catalyst a hydrolyzed product of R.sup.1.sub.n Si(OR.sup.2).sub.4-n and/or Ti(OR.sup.3).sub.4, an aluminium salt and a deposition inhibitor, all having been uniformly mixed in an organic solvent. R, R.sup.2 and R.sup.3 each are a C.sub.1 to C.sub.5 alkyl group, R.sup.1 is an alkyl, alkenyl or aryl group, and n is 0 to 2. Though containing a trialkoxysilane having a high repelling property, the liquid coating composition may form an insulating film having high mechanical strength on a substrate and the coatability of a polyimide solution over the film is good. The adhesiveness of the oriented polyimide film to the insulating film is good. The insulating film has a high insulation property and has no bad influence on the display performance of liquid crystal display elements.

Liquid coating composition forming a liquid crystal display element

A liquid coating composition for the formation of a liquid crystal display element insulating film, which comprises a) hydrolyzed product of tetraalkoxysilane of the general formula (1) below and trialkoxysilane of the general formula (2) below, b) an aluminum salt, and c) a deposition inhibitor, dissolved in an organic solvent.

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Funabashi, Japan

Rie Sakai