Resol, Resitol, Resite

In the following reactions, both ether and methylene bridges are formed. These precondensates are water-soluble and can only be entirely cross-linked at high temperatures. The Baekeland stages resole (Bakelite A), resitole (Bakelite B), and resite (Balelite C) apply analogously here... 

Resite n. A phenol-formaldehyde resin in the final state of the curing process. In this stage it is insoluble in alcohol and acetone, and infusible. Alternate term for C-stage. See C-stage also called resitol and resol. 

It may be mentioned here that it is common practice to refer to resols as stage resins and to the final network polymers as resits or C stage resins intermediate materials are called resitols oxB stage resins,... 

Resols are solid materials which are obtained from the primary oily condensation products of phenols and alkylphenols with formaldehyde (catalyzed by alkali) by heating to about 120° C. Further heating leads to Resitols , the product of final curing is called Resit. Novolaks are the primary condensation products if acids are used as catalyst. 

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