Abstract:
A method of easily and efficiently forming on a substrate a silica-based coating film having a thickness of 0.5 to 5 mu m; the coating film; a coating fluid for forming the film; and a process for producing the coating fluid. The method of forming a silica-based coating film is characterized by heating a reaction mixture comprising at least either of (A) a silicon compound represented by Si(OR)4 and (B) a silicon compound represented by R nSi(OR )4-n (wherein n is an integer of 1 to 3), (C) an alcohol represented by R CH2OH, and (D) oxalic acid in a specific proportion in the absence of water at 50 to 180 DEG C to yield a solution of a polysiloxane having a number-average molecular weight of 2,000 to 15,000 in terms of polystyrene, applying a coating fluid containing the solution to a substrate surface, and thermally curing the resultant coating film at 80 to 600 DEG C. The film has a thickness of 0.5 to 5 mu m.
Abstract:
Disclosed is a coating liquid for coating film formation, which can be sufficiently cured by a heat treatment at low temperature while having excellent storage stability. This coating liquid enables to form a coating film having excellent abrasion resistance. Also disclosed are a method for producing such a coating liquid, a coating film and an antireflection member. Specifically disclosed is a coating liquid for coating film formation, which contains a polysiloxane (A) having an organic group containing a fluorine atom, and at least one of a polysiloxane (B) represented by the formula (1) below and a monoamine compound (C). In this coating liquid, the polysiloxane (A) and at least one of the polysiloxane (B) and the monoamine compound (C) are dissolved in an organic solvent (D). (1) (In the formula, R 1 , R 2 , R 3 and R 4 independently represent a hydrogen atom or a saturated hydrocarbon group having 1-5 carbon atoms, and n represents an integer of not less than 2.)
Abstract:
A transparent substrate capable of improving the light extracting efficiency of an organic electroluminescence element, and an organic electroluminescence element high in luminous efficiency and excellent in mass-production efficiency using this substrate. An organic electroluminescence element-use transparent substrate characterized by providing on the opposite surfaces of a transparent substrate at least one layer of optical interference film having a refraction index and a film thickness that reduce a reflection quantity for light emitted from a light emitting layer, an organic electroluminescence element having the transparent substrate.
Abstract:
Disclosed is a silicon-containing liquid crystal aligning agent which enables to produce a liquid crystal alignment film having good liquid crystal alignment and high voltage holding ratio during device operation at a low frequency under high temperature conditions. Also disclosed is a method for producing such a silicon-containing liquid crystal aligning agent. Specifically disclosed is a liquid crystal aligning agent characterized by containing the following polysiloxane (A) and polysiloxane (B). Polysiloxane (A): a polysiloxane obtained by polycondensing an alkoxysilane containing an alkoxysilane represented by the following formula (1). R 1 Si(OR 2 ) 3 (1) (In the formula, R 1 represents an organic group having 8-30 carbon atoms, and R 2 represents a hydrocarbon group having 1-5 carbon atoms.) Polysiloxane (B): a polysiloxane obtained by polycondensing an alkoxysilane containing a tetraalkoxysilane represented by the following formula (2). Si(OR 3 ) 4 (2) (In the formula, R 3 represents a hydrocarbon group having 1-5 carbon atoms.)