Method of preparing dialkylphenol-ethylene oxide adducts with relatively narrow molecular weight distribution

Abstract

Abstract Ethylene oxide/dialkylphenol adducts containing an average of 2-25 -C2H4O- groups per mole are produced by reacting 2-25 moles ethylene oxide with a dialkylphenol of formula <FORM:0977072/C1/1> wherein X is alkyl of at least 3 carbon atoms and Y is alkyl, X+Y totalling 4-37 carbon atoms, in presence of an alkali metal or an alkali metal hydroxide, carbonate or alcoholate as catalyst, used in an amount of 10-80 moles/100 moles of dialkylphenol. In examples, dinonyl and dinonylphenols were reacted with various molar proportions of ethylene oxide within the stated range. U.S.A. Specifications 2,213,477 and 2,593,112 are referred to.ALSO:Ethylene oxide/dialkylphenol adducts containing an average of 2-25 -C2H4O- groups per mole are produced by reacting 2-25 moles ethy lene oxide with a dialkylphenol of formula <PICT:0977072/C3/1> wherein X is alkyl of at least 3 carbon atoms and Y is alkyl, X + Y totalling 4-37 carbon atoms, in presence of an alkali metal or an alkali metal hydroxide, carbonate or alcoholate as catalyst, used in an amount of 10-80 moles/100 moles of dialkylphenol. In examples, dinonyl and diarylphenols were reacted with various molar proportions of ethylene oxide within the stated range, e.g. 18, 20 or 22 moles (Example 1), or 25 moles (Example 3). The compounds are used as oil-soluble emulsifiers, examples of oils being kerosene and chlorinated camphene. U.S.A. Specifications 2,213,477 and 2,593,112 are referred to.ALSO:In Example 7, rust-inhibiting composition was prepared from a multigrade SAE10W-30 oil containing a metal sulphonate detergent and an oxyethylated dinonylphenol prepared from 9 mols. ethylene oxide. In Example 2, a composition was prepared from a 150 second neutral base oil containing a metal sulphonate and an oxyethylated dinonylphenol prepared from 6 mols. ethylene oxide.ALSO:Oil-soluble emulsifiers are consituted by ethylene oxide/dialkylphenol adducts containing an average of 2-25 -C2H4O- groups per mole (see Division C2). Emulsifiable concentrates in various solvents are exemplified: Example 3 relates to an emulsion of chlorinated camphene in kerosene; in Example 5 an emulsion was prepared from 98 parts tap water and 2 parts of a 1% solution in a commercially available dormant spray oil of dinonyl phenol/8 moles ethylene oxide adduct. U.S.A. Specifications 2,213,477 and 2,593,112 are referred to.

Inventors

• 👤 Richard C Mansfield

Bibliographic Details