Process for the preparation of epoxide modified adhesive compositions

Claim 1

A PROCESS FOR PREPARING AN EPOXIDE-MODIFIED AQUEOUS ALKALINE ADHESIVE COMPOSITION WHICH COMPRISES COMBINING AN ALIPHATIC HALOHYDRIN ETHER WITH AN AQUEOUS ALKALINE ADHESIVE COMPOSITION SELECTED FROM THE GROUP CONSISTING OF AQUEOUS ALKALINE PHENOLIC ADHESIVE COMPOSITIONS, AQUEOUS ALKALINE PROTEIN ADHESIVE COMPOSITIONS, AND MIXTURES, IN PROPORTIONS OF FROM 1 TO 150 PARTS BY WEIGHT OF THE ALIPHATIC HALOHYDRIN ETHER FOR EVERY 100 PARTS BY WEIGHT OF PHENOLIC AND PROTEINACEOUS SOLIDS IN THE AQUEOUS ALKALINE ADHESIVE COMPOSITION, AND SUBSEQUENTLY MAINTAINING THE MIXTURE AT A TEMPERATURE OF FROM ABOUT 50 TO 100*F. FOR AT LEAST 10 MINUTES; SAID ALIPHATIC HALOHYDRIN ETHER COMPRISING THE LEWIS ACID CATALYZED REACTION PRODUCT OF A LIQUID POLYHYDRIC ALIPHATIC ALCOHOL AND A HALOHYDRIN SELECTED FROM THE GROUP CONSISTING OF MONOHALOHYDRINS, DIHALOHYDRINS, EQUIHALOHYDRINS, AND MIXTURES THEREOF, IN PROPORTIONS OF FROM 0.65 TO 1.1 MOLS OF THE HALOHYDRIN FOR EVERY MOLAR HYDROXYL EQUIVALENT OF THE LIQUID POLYHYDRIC ALIPHATIC ALCOHOL; SAID AQUEOUS ALKALINE PHENOLIC ADHESIVE COMPOSITION CONTAINING FROM 12 TO 50% PHENOLIC SOLIDS BY WEIGHT WHICH COMPRISE THE REACTION PRODUCT OF (A) A PHENOL HAVING A DISTILLATION RANGE OF FROM ABOUT 180 TO 220*C. AND CONTAINING LESS THAN ABOUT 15% OF AT LEAST ONE PHENOL SELECTED FROM THE GROUP CONSISTING OF ORTHOCRESOL, XYLENOL, AND MIXTURES THEREOF, (B) FORMALDEHYDE AND (C) AN ALKALI METAL HYDROXIDE IN PROPORTIONS OF FROM 1.0 TO 3.5 MOLS OF FORMALDEHYDE AND FORM 0.1 TO 2.5 MOLS OF ALKALI METAL HYDROXIDE FOR EVERY ONE MOL OF THE PHENOL, THE ALKALI METAL HYDROXIDE INITIALLY BEING AT LEAST PARTIALY PRESENT; SAID AQUEOUS ALKALINE PROTEIN ADHESIVE COMPOSITION HAVING A PH OF FROM ABOUT 10.5 TO 14 DERIVED FROM THE DISSOCIATION OF A WATER-SOLUBLE ALKALI METAL COMPOUND AND CONTAINING FROM 10 TO 35% BY WEIGHT OF PROTEINACEOUS SOLIDS SELECTED FROM THE GROUP CONSISTING OF ANIMAL AND VEGETABLE PROTEINS AND THEREOF.