METHOD OF MANUFACTURING ALLYL ETHERIFICATION NOVOLAK TYPE PHENOL RESIN, AND ALLYL ETHERIFICATION NOVOLAK TYPE PHENOL RESIN OBTAINED BY THE METHOD

• Main Authors: KOBAYASHI MASAYUKI, OGAWA KOSHI, NISHIGUCHI SHOJI, SAKAMOTO ATSUSHI
• Format: Patent
• Language: English
• Published: 05.04.2012
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a manufacturing method which can obtain a novolak type phenol resin which makes the dimer of allyl etherification phenols a principal component by high yield, and to provide the allyl etherification novolak type phenol resin obtained by the manufacturing method.SOLUTION: The method of manufacturing an allyl etherification novolak type phenol resin is characterized in that allyl etherification phenols shown by general formula (I) are reacted with aldehydes under the presence of an acid catalyst. In the formula, Rdenotes an alkyl group, an alkenyl group, an aryl group or a halogen, or may form a condensed ring together with Rand the benzene ring of the phenol, Rand Reach independently denote an alkyl group, an alkenyl group, an aryl group or a hydrogen atom, provided that Rmay form a condensed ring together with Rand the benzene ring of the phenol.