Isocyanate modified polymers

Claim 1

THE ELASTOMERIC REACTION PRODUCT RESULTING FROM THE REACTION OF A MIXTURE COMPRISING: A, A POLYESTER PREPARED FROM BIFUNCTIONAL INGREDIENTS INCLUDING AT LEAST ONE DIBASIC CARBOXYLIC ACID CONTAINING AT LEAST 3 CARBONS AND AT LEAST ONE GLYCOL, SAID POLYESTER HAVING A HYDROXYL NUMBER FROM 30 TO 140 AND AN ACID NUMBER FROM 0 TO 12, AND B, AT LEAST ONE BIFUNCTIONAL ADDITIVE SELECTED FROM THE GROUP CONSISTING OF DIAMINES, AMINO ALCOHOLS, DIBASIC CARBOXYLIC ACIDS, AMINO CARBOXYLIC ACIDS, HYDROXY CARBOXYLIC ACIDS, AND THE UREAS, GUANIDINES, AND THIOUREAS CONTAINING A PRIMARY AMINO GROUP, SAID BIFUNCTIONAL ADDITIVE CONTAINING AT LEAST ONE REACTIVE GROUP SELECTED FROM THE GROUP CONSISTING OF PRIMARY AMINO AND CARBOXYL, SAID BIFUNCTIONAL ADDITIVE BEING USED IN AN AMOUNT SUCH THAT THE TOTAL NUMBER OF-NH2 AND-COOH EQUIVALENTS PRESENT IN SAID BIFUNCTIONAL REACTANT SHALL BE FROM 0.06 TO 0.24 EQUIVALENT PER MOL OF POLYESTER, AND C, AT LEAST ONE DIISOCYANATE SELECTED FROM THE GROUP CONSISTING OF HEXAMETHYLENE DIISOCYANATE, AND TETRAMETHYLENE DIISOCYANATE, THE DIISOCYANATE BEING USED IN AN AMOUNT EQUAL TO THE SUM OF FROM 1.00 MOL TO 1.20 MOLS OF DIISOCYANATE PER MOL OF POLYESTER AND THE MOLAR AMOUNT OF DIISOCYANATE EQUIVALENT TO THE MOLS OF SAID BIFUNCTIONAL ADDITIVE USED.