A METHOD FOR PREPARING PITCH HAVING HIGH SOLUBILITY

摘要

(A) preparing a naphtha-decomposed residual oil having halogen substitution as a starting material; (b) adding a formaldehyde to the starting material, followed by a dehydration condensation reaction to obtain a first polymer; And (c) subjecting the primary polymer to a secondary polymerization by a halogenation condensation reaction, wherein the petroleum pitch produced by the process according to the present invention is characterized in that the fluidity of the polymer molecular chain mobility) and is capable of dissolving 70% to 100% in an organic solvent such as toluene, has a high molecular weight and a high softening point, and is useful as a precursor for producing high-function carbon fibers.