Catalyzed storage-stable quick drying coating composition containing polyurethane-polyisocyanate film former

Claim 1

A PACKAGE COMPRISING A CLOSED CONTAINER CONTAINING A CATALYZED STORAGE-STABLE QUICK-DRYING COATING COMPOSITION WHICH IS SUBSTANTIALLY FREE FROM WATER AND ALKALINE REACTING MATERIALS, SAID WATER CONTENT BEING LESS THAN 0.1%, WHICH CONTAINS FROM 10 TO 90% BY WEIGHT OF SOLVENT COMPONETN SUBSTANTIALLY FREE FROM COMPOUNDS CONTAINING REACTIVE HYDROGEN AND FROM 10 TO 90% BY WEIGHT OF SOLUTE COMPONENT COMPRISING A POLYURETHANEPOLYISOCYANATE FILM-FORMER AND A CATALYST TO ACCELERATE THE FILM FORMING REACTION IN THE APPLIED COATING, SAID CATALYST BEING AN ORGANO-COMPOUND OF TETRAVALENT TIN HAVING AT LEAST ONE CARBON ATOM BONDED TO THE TIN ATOM OF SAID ORGANO-COMPOUND AND AT LEAST ONE ATOM SELECTED FROM THE GROUP CONSISTING OF OF OXYGEN, SULFRU AND CHLORINE BONDED TO THE TIN ATOM OF SAID ORGANO-COMPOUND, THE SUM OF BONDS OF TIN TO CARBON AND TO SAID ATOMS BEING EQUAL TO FOUR, SAID POLYURETHANE-POLYISOCYANATEFILM-FORMER SOLUTE BEING PREPARED BY FORMING A REACTION MIXTURE OF A POLYOL REACTANT AND A POLYISOCYANATE REACTANT, SAID POLYOL REACTANT BEING AN ORGANIC COMPOUND CONTAINING CARBON, OXYGEN AND HYDROGEN HAVING A PLURALITY OF ALIPHATIC HYDROXYL GROUPS AND HAVING AN AVERAGE FUNCTIONALLY BETWEEN 2 AND 4 INCLUSIVE AND AN AVERAGE HYDROXYL EQUIVALENT WEIGHT BETWEEN 100 AND 600, SAID POLYISOCYANATE REACTANT BEING AN ORGANIC COMPOUND CONTAINING CARBON, HYDROGEN, OXYGEN AND NITROGEN HAVING A PLURALITY OF -NCO GROUPS PER MOLECULE AND HAVING AN AVERAGE FUNCTIONALITY BETWEEN 2 AND 3 INCLUSIVE AND AN AVERAGE EQUIVALENT WEIGHT BETWEEN 50 AND 200, THE AMOUNT OF POLYISOCYANATE REACTANTS AND POLYOL REACTANTS USED BEING SUCH THAT (1) THE WEIGHT OF POLYISOCYANATE REACTANT IS FROM 35% TO 65% OF THE WEIGHT OF THE TOTAL POLYISOCYANATE AND POLYOL REACTANTS, AND (2) THE RATIO OF NCO GROUPS OF OH GROUPS IN THE REACTANT CHARGE IS BETWEEN 1.5 AND 2.2 INCLUSIVE, AND HEATING SAID REACTION MIXTURE UNTIL THE REACTION BETWEEN SAID JPOLYISOCYANATE REACTANT AND SAID POLYOL REACTANT IS SUBSTANTIALLY COMPLETE.