A typical step curing process is heating for about 2 hours at about 93??? C. followed by about 2 hours at about 149??? C. followed by about 2 hours at about 177??? C. followed by about 16 hours at about 208??? C. In an alternative procedure, the solvent may be removed by evaporation by known means, the ceramer/grafted ceramer rinsed with a hydrocarbon solvent such as hexane to remove unwanted reac