Polyurethane compositions from ureido-polyols

Claim 1

THE METHOD OF PREPARING A POLYURETHANE ARTICLE WHICH CONSIST ESSENTIALLY OF THE STEPS OF: PREPARING A POLYOL UREA BY THE INTERACTION OF A DIALKANOL AMINE HAVING NOT MORE THAN 3 CARBON ATOMS IN THE ALKANOL GROUP WITH AN ORGANIC COMPOUND HAVING AT LEAST ONE BUT NOT MORE THAN TWO ISOCYANATO GROUPS, THE ORGANIC GROUP TO WHICH THE ISOCYANATO GROUP IS ATTACHED HAVING AT LEAST THREE BUT NOT MORE THAN SEVENN CARBON ATOMS; MIXING THE RESULTING LOW MOLECULAR WEIGHT POLYOL UREA WITH A VISCOUS POLYOL HAVING AN AVERAGE MOLECULAR WEIGHT FROM 800 TO 2800, THE MOL RATIO OF THE VISCOUS POLYOL TO POLYOL UREA BEING FROM 0.2 TO 1 TO 1 TO 0.2 AND SAID VISCOUS POLYOL BEING SELECTED FROM THE GROUP CONSISTING OF POLYALKYLENEETHERPOLYOLS AND POLYESTERS; INCORPORATING A CATALYTIC AMOUNT OF POLYURETHANE CATALYST WITH THE POLYOL MIXTURE; ADDING TO THHE CATALYST-CONTAINING POLYOL MIXTURE TO AN ORGANIC DIISOCYANATO COMPOUND IN WHICH EACH CYANATO GROUP IS ATTACHED TO A MONONUCLEAR AROMATIC GROUP, THE -NCO GROUPS OF THE DIISOCYANATE BEING WITHIN THE RANGE FROM 95% TO 120% OF THE -OH GROUPS POLYOL AND DIISOCYANATE TO TRANSFORM IT INTO A POLYOF THE POLYOL MIXTURE; HEATING THE LIQUID MIXTURE OF POLYOL AND DIISOCYANATE TO TRANSFORM IT INTO A POLYA TEMPERATURE BELOW 300*C. FOR A PERIOD FROM 0.1 TO 10 HOURS TO PRODUCE A POLYURETHANE ARTICLE HAVING A TENSILE STRENGTH GREATER THAN AN ARTICLE PREPARED WITHOUT THE PRESENCE OF A UREA GROUP IN THE LOW MOLECULAR WEIGHT POLYOL.

Claim 2

THE METHOD OF PREPARING A POLYURETHANE ARTICLE WHICH CONSIST ESSENTIALLY OF THE STEPS OF: PREPARING A POLYOL UREA BY THE INTERACTION OF A DIALKANOL AMINE HAVING NOT MORE THAN 3 CARBON ATOMS IN THE ALKANOL GROUP WITH AN ORGANIC COMPOUND HAVING AT LEAST ONE BUT NOT MORE THAN TWO ISOCYANATO GROUPS, THE ORGANIC GROUP TO WHICH THE ISOCYANATO GROUP IS ATTACHED HAVING AT LEAST THREE BUT NOT MORE THAN SEVENN CARBON ATOMS; MIXING THE RESULTING LOW MOLECULAR WEIGHT POLYOL UREA WITH A VISCOUS POLYOL HAVING AN AVERAGE MOLECULAR WEIGHT FROM 800 TO 2800, THE MOL RATIO OF THE VISCOUS POLYOL TO POLYOL UREA BEING FROM 0.2 TO 1 TO 1 TO 0.2 AND SAID VISCOUS POLYOL BEING SELECTED FROM THE GROUP CONSISTING OF POLYALKYLENEETHERPOLYOLS AND POLYESTERS; INCORPORATING A CATALYTIC AMOUNT OF POLYURETHANE CATALYST WITH THE POLYOL MIXTURE; ADDING TO THHE CATALYST-CONTAINING POLYOL MIXTURE TO AN ORGANIC DIISOCYANATO COMPOUND IN WHICH EACH CYANATO GROUP IS ATTACHED TO A MONONUCLEAR AROMATIC GROUP, THE -NCO GROUPS OF THE DIISOCYANATE BEING WITHIN THE RANGE FROM 95% TO 120% OF THE -OH GROUPS POLYOL AND DIISOCYANATE TO TRANSFORM IT INTO A POLYOF THE POLYOL MIXTURE; HEATING THE LIQUID MIXTURE OF POLYOL AND DIISOCYANATE TO TRANSFORM IT INTO A POLYA TEMPERATURE BELOW 300*C. FOR A PERIOD FROM 0.1 TO 10 HOURS TO PRODUCE A POLYURETHANE ARTICLE HAVING A TENSILE STRENGTH GREATER THAN AN ARTICLE PREPARED WITHOUT THE PRESENCE OF A UREA GROUP IN THE LOW MOLECULAR WEIGHT POLYOL.