Abstract: An electrophotographic sensitive layer comprising a new soluble photoconductive resin containing an aromatic tertiary amino group of the following formula as a photoconductive functional group ##STR1## wherein .phi. represents a benzene nucleus containing at least one nitrogen-free electron donating substituent, C.sub.1 represents a carbon atom on the aromatic ring, and C.sub.2 represents a carbon atom which forms a hydrocarbon residue and takes a bond orbit of the SP.sup.2 or SP.sup.3 type; and the benzene nuclei represented by .phi. are bonded to each other through a methylene group to such an extent as to maintain the solubility of the resin.

Abstract: A process for preparing alkenylbenzenes, which comprises reacting an alkylbenzene with 1,3-butadiene at elevated temperature in the presence of an alkali metal catalyst in the substantial absence of oxygen and moisture, characterized in that said catalyst is composed of1. 0.0005 to 0.03% by weight, based on the alkylbenzene, of metallic potassium, and2. metallic sodium in an amount expressed in percent by weight, based on the alkylbenzene, determined by the following relationship (i)-0.59x + 0.025 .gtoreq. Nawherein x is the amount expressed in percent by weight of the metallic potassium used.