Cyclohexanone-formaldehyde resin production

Claim 1

A PROCESS OF PRODUCING RESINS COMPRISING REACTING FORMALDEHYDE WITH CYCLOHEXANONES OF THE GROUP CONSISTING OF CYCLOHEXANONE AND ITS 3-METHYL AND 4-METHYL HOMOLOGS IN A MOLAR RATIO OF FROM 1.35 TO 1.65 MOLS OF FORMALDEHYDE IN AQUEOUS SOLUTION TO EACH MOL OF TE CYCLOHEXANONE IN THE PRESENCE OF FROM .25 TO 1 PER CENT OF CAUSTIC ALKALI CATALYST BASED ON THE WEIGHT OF THE CYCLOHEXANONE, GRADUALLY AND SUBSTANTIALLY CONTINUOUSLY ADDING AT LEAST 50 PER CENT OF THE CATALYST AND 50 PER CENT OF THE FORMALDEHYDE SIMULTANEOUSLY TO THE CYCLOHEXANONE, IN A MANNER SUCH THAT THE SIMULTANEOUS ADDITION OF AT LEAST ABOUT THE SAID PROPORTIONS OF FORMALDEHYDE AND CATALYST IN THE FINAL ADDITION OF REACTANTS TO THE REACTION MIXTURE RAISING THE TEMPERATURE OF THE REACTION MIXTURE FROM WITHIN THE RANGE OF 50* TO 70* C. TO WITHIN THE RANGE OF 95* TO 100* C. DURING THE REACTION AND CONTROLLING THE PH VALUE OF THE REACTION MIXTURE SO THAT IT IS WITHIN THE RANGE OF 8 TO 9 DURING THE INITIAL MAJOR PORTION OF THE REACTION AND WITHIN THE RANGE OF 6.5 TO 7.5 BEFORE RECOVERY OF THE RESIN FROM THE REACTION MIXTURE AND MACHANICALLY SEPARATING THE AQUEOUS LAYER.