NOVELTY - An epoxy polymerizable composition comprises fluorene-type epoxy compound (1 or 2), epoxy compound having softening point of 30 degrees C or less, and thiol compound having 2 or more thiol groups in a molecule.    USE - Epoxy polymerizable composition used for sealing material composition and transparent resin for cured material used for organic electroluminescent panel and optical device (all claimed) including optical film, optical fiber, optical waveguide film and prism. Can also be used for solar cell, liquid crystal display, light emitting diode, electronic paper and charge coupled device.    ADVANTAGE - The epoxy polymerizable composition has excellent workability, refractive index and heat resistance, and provides organic electroluminescent panel with improved productivity and suppressed permeation of moisture content.    DETAILED DESCRIPTION - An epoxy polymerizable composition comprises fluorene-type epoxy compound (1 or 2), epoxy compound having softening point of 30 degrees C or less, and thiol compound having 2 or more thiol groups in a molecule.    R1,R2=H or methyl;    R3,R4=1-5C alkyl;    n=0-3;    m=1-3;    p,q=0-4;and    Y'=single bond, oxygen or sulfur.    INDEPENDENT CLAIMS are included for the following:    (1) manufacture of epoxy polymerizable composition, which involves heat-mixing fluorene-type epoxy compound and epoxy compound, and then mixing thiol compound with the mixture of the epoxy compound at 30 degrees C or less;    (2) cured material is obtained by hardening transparent resin; and    (3) organic electroluminescent panel comprises sealing material (1) which is interposed between display substrate (30) with organic electroluminescent element, and opposition substrate (31). The sealing material is cured material.    DESCRIPTION OF DRAWING(S) - The drawing shows sectional view of surface sealed type organic electroluminescent panel.    Sealing material (1)    Organic electroluminescent layer (20)    Cathode transparent electrode layer (21)    Anode reflecting electrode layer (22)    Display substrate (30)    Opposition substrate (31)