Sealant from an isocyanate-terminated polyol, a diglycidyl polyether, and a polyol

Claim 1

A PASTY SEALANT COMPOSITION CURABLE AT ROOM TEMPERATURE TO RESILIENT CONDITION CONSISTING ESSENTIALLY OF THE COMBINATION OF (A) THE LIQUID REACTION PRODUCT OF (I) A MEMBER OF THE CLASS CONSISTING OF (A) POLY(ALKYLENE ETHER) GLYCOLS HAVING A MOLECULAR WEIGHT ABOVE ABOUT 2000 AND A HYDROXYL NUMBER OF FROM ABOUT 20 TO 65 AND (B) ALCOHOLIC HYDROXYL TERMINATED POLYESTERS HAVING MOLECULAR WEIGHTS ABOVE ABOUT 2000 AND HYDROXYL NUMBERS OF FROM ABOUT 20 TO 65, SAID POLYESTERS BEING CONDENSATES OF (I) SATURATED DICARBOXYLIC ACIDS AND (II) ALCOHOLS SELECTED FROM THE CLASS CONSISTING OF DIHYDRIC ALCOHOLS AND MIXTURES THEREOF WITH SMALL AAMOUNTS OF TRIHYDRIC ALCOHOLS, WITH (II) FROM ABOUT 1.5 TO ABOUT 5 TIMES THE AMOUNT OF AROMATIC DIISOCYANATE REQUIRED TO PROVIDE ONE -NCO GROUP FOR REACTION WITH EACH HYDROGEN OF THE ALCOHOLIC HYDROXYL GROUPS OF SAID MEMBER, (B) A LIQUID LOW MOLECULAR WEIGHT DIGLYCIDYL ETHER OF A POLYHYDRIC PHENOL HAVING A VIC-EPOXY EQUIVALENT OF BETWEEN 170 AND 210, AN OH VALUE OF FROM 80 TO 90 AND A VISCOSITY NOT OVER ABOUT 20,000 CPS. AT 25*C., (C) AN AMINE FROM THE GROUP CONSISTING OF 4,4'' METHYLENE BIS (2 CHLORO-AMILINE), DIAMINO DIPHENYL SULFONE, AND A LIQUID EUTECTIC MIXTURE OF CUMENE DIAMINE AND M-PHENYLENE DIAMINE AND TRIETHANOL AMINE AND (D) A MEMBER OF SAID CLASS CONSISTING OF (A) POLY(ALKYLENE ETHER) GLYCOLS AND (B) ALOCHOLIC HYDROXYL TERMINATED POLYESTES, SAID SEALANT COMPRISING, BASED ON THE SUM OF THE WEIGHTS OF THE COMPONENTS (A), (B), (C) AND (D) AT LEAST 50% BY WEIGHT OF SAID LIQUID REACTION PRODUCT (A), FROM ABOUT 5% TO ABOUT 12% BY WEIGHT OF SAID DIGLCIDYL ETHER (B), FROM 3.5% TO 9% BY WEIGHT OF SAID AMINE (C), AND AN AMOUNT OF SAID MEMBER (D) OF SAID CLASS CONSISTING OF (A) POLY(ALKYLENE ETHER) GLYCOLS AND (B) ALCOHOLIC HYDROXYL TERMINATED POLYESTES, SUFFICIENT TO PROVIDE AN AMOUNT OF ALCOHOLIC HYDROXYL GROUPS SUPPLYING ACITCE HYDROGEN WHICH TAKEN WITH THE ACTIVE HYDROGEN OF THE AMINO GROUPS OF SAID AMINE (C) IS ABOUT EQUAL TO THE AVAILABLE -NCO GROUPS IN SAID REACTION PRODUCT (A).