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Priority to MYPI20002319priorityCriticalpatent/MY120616A/en
Publication of MY120616ApublicationCriticalpatent/MY120616A/en
Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds
(AREA)
Abstract
A METHOD FOR PRODUCING PHENOL RESIN HAVING GOOD COLOR TONE, WHICH METHOD COMPRISES REACTING HYDROXYL GROUP-CONTAINING AROMATIC COMPOUND AND UNSATURATED CYCLIC HYDROCARBON UNDER THE CONDITION THAT THE MOISTURE IS 100 PPM OR LESS AND THE CONCENTRATION OF FRIEDEL-CRAFTS CATALYST IS 0.07 MASS OR LESS IN A REACTION SYSTEM AND METHOD FOR PRODUCING EPOXY RESIN HAVING GOOD COLOR TONE, WHICH METHOD COMPRISES REACTING THE OBTAINED PHENOL RESIN AND EPIHALOHYDRIN IN THE PRESENCE OF BASE CATALYST, REMOVING REMAINING CATALYST, AND FURTHER REMOVING UNCREACTED EPIHALOHYDRIN.
MYPI200023192000-05-252000-05-25Method for producing phenol resin and epoxy resin
MY120616A
(en)