Phenol-urea-aldehyde-sulfite liquor adhesive, method of production, and product madetherefrom

Claim 1

AN AQUEOUS ADHESIVE SOLUTION RESULTING FROM THE MIXTURE OF SUBSTANTIALLY EQUAL PARTS OF (A) A NONO-ACID TOLERANT, AQUEOUS RESINOUS ADHESIVE SOLUTION EXTENDED WITH (B) AN ALKALINE AQUEOUS SOLUTION OF SULFITE WASTE LIQUOR WHERE SOLUTION (A) CONSISTS ESSENTIALLY OF THE PRODUCT RESULTING FROM THE SIMULTANEOUS REACTION OF THE FOLLOWING CONSTITUENTS IN THE FOLLOWING APPROXIMATE MOLAR RATIOS: UREA 1.0 MOLAR RATIO PHENOL 5.0 FORMALDEHYDE 12.0 SODIUM HYDROXIDE 1.25 SAID SOLUTION HAVING A PH OF APPROXIMATELY 9.8 TO 10.4 A VISCOSITY OF APPROXIMATELY G-H ON THE GARDNER-HOLDT SCALE; AND WHEREIN SOLUTION (B) HAS A PH OF APPROXIMATELY 9.8 TO 1.4 AND CONSISTS ESSENTIALLY OF WATER AND SULFITE WASTE LIQUOR, THE SOLIDS CONTENTS OF THE RESPECTIVE SOLUTIONS (A) AND (B) BEING APPROXIMATELY EQUAL, AND SAID MIXTURE OF SOLUTIONS (A) AND (B) HAVING A PH OF APPROXIMATELY 9.8 TO 1.4 AND A SOLIDS CONTENTS OF APPROXMATELY 43 TO 48% BY WEIGHT.