Certain non-ionic surfactants and method of making same

Claim 1

A COGENERIC MIXTURE OF OXYALKYLATION DERIVATIVES OF A MEMBER OF THE CLASS CONSISTING OF GLYCOLS IN WHICH ONE HYDROXYL GROUP IS TERTIARY AND THE OTHER HYDROXYL GROUP IS NOT TERTIARY, AND ITS LOW STAGE OXYETHYLATION ADDITION PRODUCTS; SAID GLYCOLS HAVING NOT OVER 22 CARBON ATOMS; SAID LOW STAGE OXYETHYLATION STEP INVOLVING NOT MORE THAN 4 MOLES OF ETHYLENE OXIDE PER MOLE OF GLYCOL, FOLLOWED BY CONVERSION INTO A SURFACE ACTIVE MIXTURE; SAID CONVERSION INTO A SURFACE ACTIVE MIXTURE BEING BY VIRTUE OF A FIRST STAGE OXYALKYLATION INVOLVING (A) AT LEAST ONE MEMBER OF THE CLASS CONSISTING OF PROPYLENE OXIDE AND BUTYLENE OXIDE TO PROVIDE AN INTERMEDIATE AND A SECOND STAGE OXYALKYLATION INVOLVING (B) ETHYLENE OXIDE; SAID INTERMEDIATE PRIOR TO OXYETHYLATION BEING CHARACTERIZED BY WATER INSOLUBILITY; SAID FINAL PRODUCT BEING CHARACTERIZED BY THE FACT THAT HYDROPHOBE PROPERTY OF THE INTERMEDIATE IS OFFSET TO A SIGNIFICANT DEGREE BY THE FINAL STAGE OXYETHYLATION; THE AVERAGE MOLECULAR WEIGHT OF SAID COGENERIC MIXTURE BEING NOT OVER 10,000, AND NOT LESS THAN 400.