Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1979-03-27
1981-04-07
Helfin, Bernard
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568720, C07C 3714
Patent
active
042608317
ABSTRACT:
m-Isopropenylphenol oligomer which is useful for the production of synthetic resins such as epoxy resins is produced by polymerizing m-isopropenylphenol at a temperature of 135.degree. to 230.degree. C. using a catalytic amount of an acid catalyst in the presence or absence of a solvent, or freezing m-isopropenylphenol in the presence or absence of an acid catalyst.
Hata Kazuhiko
Kamio Kunimasa
Kanagawa Shuichi
Mashita Kentaro
Matsushima Shunsuke
Helfin Bernard
Sumitomo Chemical Company Limited
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