Alkylation of phenols with polypropylene

Claim 1

THE PROCESS OF PREPARING AN ALKYLATED PHENOL PRODUCT, WHICH COMPRISES POLYMERIZING PROPYLENE IN THE PRESENCE OF BORON FLUORIDE AS A CATALYST AT A TEMPERATURE SUFFICIENTLY LOW TO FORM A POLYMER PRODUCT CONTAINING PREDOMINANTLY PROPYLENE POLYMERS HAVING 18 TO 24 CARBON ATOMS PER MOLECULE, REACTING PHENOL WITH A THUSOBTAINED PROPYLENE POLYMER HAVING BETWEEN 18 TO 24 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF BORON FLUORIDE AS A CATALYST AT A TEMPERATURE IN THE RANGE OF 30 TO 50* C. TO FORM AN ALKYL PHENOL IN WHICH THE PROPYLENE POLYMER IS THE SUBSTITUENT ALKYL SIDE CHAIN GROUP, REACTING 2 MOLES OF THE ALKYL PHENOL WITH 1 TO 2 MOLES OF SULFUR DICHLORIDE AT ABOUT ROOM TEMPERATURE TO FORM AN ALKYL PHENOL SULFIDE, AND REACTING THE ALKYL PHENOL SULFIDE WITH BARIUM HYDRATE AT ABOUT 110 TO 150* C. TO FORM A NORMAL BARIUM SALT OF THE ALKYL PHENOL SULFIDE.