Abstract: A bisphenol monoester compound represented by the formula (1): (in the formula (1), Rs each represent independently a hydrogen atom or a methyl group, and R? represents an alkyl group of a carbon number of 1 to 6, or a hydrogen atom).

Abstract: The present invention is to provide a light-controlling film giving an excellent haze, and a compound and a composition which enable to produce the film. The invention provides phenyl acrylate represented by the formula (I); a composition comprising the phenyl acrylate and at least two kinds of compounds having a polymerizable carbon-carbon bond in a molecule; and a film obtained by photo-curing the above-mentioned composition. (wherein R represents a methyl group or a hydrogen atom.

Abstract: A bisphenol monoester compound represented by the formula (1): (in the formula (1), Rs each represent independently a hydrogen atom or a methyl group, and R? represents an alkyl group of a carbon number of 1 to 6, or a hydrogen atom).

Abstract: The present invention is to provide a light-controlling film giving an excellent haze, and a compound and a composition which enable to produce the film. The invention provides phenyl acrylate represented by the formula (I); a composition comprising the phenyl acrylate and at least two kinds of compounds having a polymerizable carbon-carbon bond in a molecule; and a film obtained by photo-curing the above-mentioned composition. (wherein R represents a methyl group or a hydrogen atom.

Abstract: A compound of the following formula (I) or (II) (in the formula (I), n represents an integer of 0 to 2) (in the formula (II), m represents an integer of 0 to 2).

Abstract: A method for producing a resorcin/formaldehyde resin comprising subjecting a salts-containing aqueous solution, resorcin, formaldehydes and aliphatic ketone having 3 to 6 carbon atoms to a polymerization reaction in the presence of an acidic catalyst, separating the reaction liquid after reaction between an aqueous phase and an organic phase, and obtaining a resorcin/formaldehyde resin from the organic phase, wherein the aqueous phase recovered by separating is distilled to adjust the aliphatic ketone content to 0.3 wt % or less and the alcohol content to 0.1 wt % or less, and the aqueous phase having a salts concentration adjusted to 35 to 45 wt % is used as said salts-containing aqueous solution.

Abstract: A compound of the following formula (I) or (II) (in the formula (I), n represents an integer of 0 to 2) (in the formula (II), m represents an integer of 0 to 2).

Abstract: Sulfonylamide derivatives of the formula,RSO.sub.2 NHC.sub.2 H.sub.4 Clwherein R is an alkyl or a phenyl group, which are particularly useful for the production of photographic chemicals, are prepared by the reaction between a sulfonylhalide of the formula,RSO.sub.2 Xwherein R is as defined above, and X is chlorine or bromine, and 2-chloroethylamine or its salt, which is prepared by the chlorination of monoethanolamine with thionylchloride.