abstract |
A METHOD OF PREPARING A COMPOSITE STRUCTURE OF A CURED POLYURETHANE ADHERED TO A TREATED ELASTOMER, WHICH COMPRISES THE STEPS (A) TREATING THE ELASTOMER WITH FRESHLY PREPARED CHLORINE WATER, (B) SUBSTANTIALLY DRYING THE HEATED ELASTOMER BY EVAPORATION, (C) APPLYING A LIQUID POLYURETHANE REACTION MIXTURE TO THE TREATED ELASTOMER, AND (D) CURING THE REACTION MIXTURE. |