Elastomeric diisocyanate modified polyesters

Claim 1

THE ELASTOMERIC REACTION PRODUCT OF: A, A MATERIAL PREPARED FROM BIFUNCTIONAL INGREDIENTS INCLUDING AT LEAST ONE DIBASIC CARBOXYLIC ACID AND AT LEAST ONE COMPLEMENTARY BIFUNCTIONAL REACTANT SELECTED FROM THE GROUP CONSISTING OF GLYCOLS, AMINO ALCOHOLS, AND DIAMINES, THE HYDROGEN-BEARING AMINO GROUPS OF THE AMINO ALCOHOL AND DIAMINE BEING PRESENT IN AN AMOUNT NOT TO EXCEED 7.5% OF THE TOTAL NUMBER OF HYDROGEN-BEARING AMINO GROUPS AND HYDROXYL NUMBER PRESENT, SAID MATERIAL HAVING A HYDROXYL NUMBER FROM 40 TO 100 AND AN ACID NUMBER FROM 0 TO 7, AND B, AT LEAST ONE DIISOCYANATE SELECTED FROM THE GROUP CONSISTING OF 4,4''-DIPHENYL DIISOCYANATE, 4,4''-DIPHENYLENE METHANE DIISOCYANATE, DIANISIDINE DIISOCYANATE, 4,4''-TOLIDINE DIISOCYANATE, 1,5-NAPHTHALENE DIISOCYANATE, 4,4''-DIPHENYL ETHER DIISOCYANATE, AND P-PHENYLENE DIISOCYANATE, THE DIISOCYANATE BEING USED IN AN AMOUNT RANGING FROM 0.70 TO 0.99 MOL PER MOL OF SAID MATERIAL.