Abstract:
A METHOD FOR PROVIDING IMPROVED BONDING IN A SANDWICH STRUCTURE WHICH HAS (1) A THERMOSETTING UNSATURATED POLYESTER RESINOUS CORE AND (2) THERMOPLASTIC FACE SHEETS SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, CHLORINATED POLYVINYL CHLORIDE AND CHLORINATED POLYETHYLENE, THE LATTER INCORPORATING BETWEEN ABOUT 0.1% AND ABOUT 20% OF A COMPOUND HAVING ONE OR MORE UNSATURATED >C=C>GROUPS.