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Molecular formula : CAS :
nature : Condensate may also known as phenolic resin. One step is phenolic resin curing process at the intermediate stage of the phenolic resin. This phase of the resin, not soluble in alkaline aqueous solution, but in acetone or ethanol partially dissolved. With alcohol, acetone contacts, will swelling, but not dissolved, heating softening. Yes thermosetting resin curing process in the middle stage, yet curable prepreg or premix contained in the resin that is the B stage resin. Heating further condensation to form insoluble not melt the C band phenolic resin.
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