Abstract: Disclosed is a compound having excellent electron transporting ability, which is useful for electrophotographic photosensitive bodies or organic EL devices. Specifically disclosed is a novel quinone compound having a structure represented by general formula (I). Also disclosed is a highly sensitive, positive charge type electrophotographic photosensitive body for copying machines and printers, wherein the novel organic material is used as a charge-transporting material in a photosensitive layer. Also specifically disclosed is an electrophotographic photosensitive body having a photosensitive layer formed on a conductive base and containing a charge-generating material and a charge-transporting material, wherein the photosensitive layer contains at least one of the above-described compounds. Further disclosed is an electrophotographic apparatus using such a positive charge type electrophotographic photosensitive body.

Abstract: An object of the present invention is to provide a novel monomer compound having a lactone structure which gives polymers having more excellent feature as resist material, etc. The present invention relates to a compound represented by the following formula [1]: wherein R1 and R2 are an alkyl group; R3 and R4 are each independently hydrogen atom or an alkyl group; R5 is hydrogen atom, acryloyl group or methacryloyl group; and X is a methylene group which may have an alkyl group or an ethylene group which may have an alkyl group. The present invention provides a compound having a lactone structure which gives a polymer having more excellent feature particularly as a resist material and also provides a hydroxy lactone being useful as a material, etc. therefor.

Abstract: A novel monomer compound having a lactone moiety of the present invention can be converted into polymers usable as resist materials with excellent properties, etc., and an alcohol compound having a lactone moiety of the invention is useful as a material for the monomer compound. The compounds are represented by the following general formula [1]: wherein one of R1 and R2 represents a hydrogen atom, an acryloyl group, or a methacryloyl group, and the other represents an alkyl group; R3 and R4 independently represent a hydrogen atom or an alkyl group; R5 and R6 both represent a hydrogen atom or are combined to form a methylene chain that may have an alkyl group; and R7 and R8 independently represent a hydrogen atom or a methyl group.

Abstract: An object of the present invention is to provide a novel monomer compound having a lactone structure which gives polymers having more excellent feature as resist material, etc. The present invention relates to a compound represented by the following formula [1]: wherein R1 and R2 are an alkyl group; R3 and R4 are each independently hydrogen atom or an alkyl group; R5 is hydrogen atom, acryloyl group or methacryloyl group; and X is a methylene group which may have an alkyl group or an ethylene group which may have an alkyl group. The present invention provides a compound having a lactone structure which gives a polymer having more excellent feature particularly as a resist material and also provides a hydroxy lactone being useful as a material, etc. therefor.

Abstract: A novel monomer compound having a lactone moiety of the present invention can be converted into polymers usable as resist materials with excellent properties, etc., and an alcohol compound having a lactone moiety of the invention is useful as a material for the monomer compound. The compounds are represented by the following general formula [1]: wherein one of R1 and R2 represents a hydrogen atom, an acryloyl group, or a methacryloyl group, and the other represents an alkyl group; R3 and R4 independently represent a hydrogen atom or an alkyl group; R5 and R6 both represent a hydrogen atom or are combined to form a methylene chain that may have an alkyl group; and R7 and R8 independently represent a hydrogen atom or a methyl group.

Abstract: To offer a method of producing useful para-menthane-3,8-diol having the excellent repellent action to harmful living things, including noxious insects, in high purity and high yield, simply, and economically by the use of citronellal as a raw material compound.The above-mentioned problems are resolved by the production method of this invention wherein citronellal is treated with aqueous sulfuric acid solution of 0.02 to 1.0 wt. % in concentration to produce para-menthane-3,8-diol. In case of recovering the produced para-menthane-3,8-diol, a method is preferably adopted, wherein after the reaction product is extracted with an aliphatic hydrocarbon solvent of 5 to 8 in carbon number, the extract is cooled down at temperature higher than the melting point of said aliphatic hydrocarbon solvent and of -10.degree. C. or less to crystallize para-menthane-3,8-diol.