Abstract: A process for preparing an ether-capped poly(oxyalkylated) alcohol surfactant is provided. The alcohol has the formula: RO(R1O)xCH(CH3)OR2 wherein R is selected from the group consisting of linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radicals having from about 1 to about 30 carbon atoms; R1 may be the same or different, and is independently selected from the group consisting of branched or linear C2 to C7 alkylene in any given molecule; x is a number from 1 to about 30; and R2 is a six membered substituted or unsubstituted, saturated or unsaturated, cyclic or aromatic hydrocarbon radical.

Abstract: Compounds useful as reactive coalescents and methods of improving the stability of reactive coalescents are disclosed. A process for the preparation of low molecular weight polymers which are also useful as reactive coalescents is also disclosed.

Abstract: The present invention comprises novel preparations of polyoxypropylene/polyoxyethylene copolymers which retain the therapeutic activity of the commercial preparations, but are substantially free from the undesirable effects which are inherent in the prior art preparations. Because the preparations of polyoxypropylene/polyoxyethylene copolymers which comprise the present invention are a less polydisperse population of molecules than the prior art polyoxypropylene/polyoxyethylene copolymers, the biological activity of the copolymers is better defined and more predictable.

Abstract: The present invention relates to a process for the preparation of novel, partially crystalline polyether polyols with a functionality of ≧2, an average molecular weight Mn of 500 to 100,000 and a molar proportion of isotactic triads determining the crystallinity of >28%. The new polyether polyols are prepared by polymerizing alkylene oxides in the presence of a bimetallic :-oxoalkoxide modified with hydroxyl compounds.

Abstract: EpB polyether alcohols were prepared by reacting 3,4-epoxy-1-butene with water or an alcohol such as methanol, butanol or ethylene glycol. Polyether alcohols thus prepared were found to have utility as reactive diluents for oxidatively curable coatings. In addition to this application, 3,4-epoxy-1-butene oligomers can also function as a resin, a chain extender, a monomer, and an additive for various oxidatively curable coating systems including alkyds, unsaturated polyesters, (meth)acrylate functional resins, urethanes, and latexes.

Abstract: The invention is a preparation process of alkylcyclohexanol alkylene oxide adduct which contains almost no alkylphenol alkylene oxide adduct 1) in the absence of a solvent, 2) in the presence of a saturated hydrocarbon solvent, or 3) in the presence of water. The invention can prepare alkylcyclohexanol alkylene oxide having a 200 ppm or less content of alkylphenol and alkylphenol alkylene oxide adduct. The alkylcyclohexanol alkylene oxide adduct obtained in the process of the invention has less ultraviolet absorption and fluorescence due to alkylphenol alkylene oxide adduct and is thus useful for spectrometric analysis of protein and further has excellent properties in the field of detergent and other common uses of surface active agents.

Abstract: A continuous alkoxylation process for the production of polyether polyols is disclosed. The process comprises the use of a plurality of reaction modules each having an outer tube and an inner tube with annular chamber between them. A spiral reaction tube is spaced from the inner tube and winds around the inner tube within the annular chamber. The spiral reaction tube includes an inlet and an outlet, each of which extend through said outer tube. A heat exchange medium flows through the annular chamber and controls the reaction temperature in the spiral reaction tube. The process comprises continuously forming an initial reaction mixture of at least one alkylene oxide and an initiator having at least one reactive hydrogen which is reactive to the alkylene oxide.

Abstract: The present invention is the following invention which provides a cement admixture which satisfies fluidity of fresh concrete and high strength of the hardened product of concrete simultaneously.

Abstract: Metal [hexacyanocobaltate, cobalthexanitrite nitroferricyanide] complexes are useful alkylene oxide polymerization catalysts. The metal is any that forms a precipitate with the hexacyanocobaltate, cobalthexanitrite and nitroferricyanide groups. These catalysts are made from less expensive raw materials than the common zinc hexacyanocobaltate catalysts, and provide short induction periods and many cases more controlled exotherms. In addition, the metal [hexacyanocobaltate, cobalthexanitrite nitroferricyanide] catalysts often provide poly(propylene oxide) polymers having very low unsaturations, even when the catalyst is complexed with a complexing agent such as glyme.

Abstract: Metal hexacyanocobaltate nitroferricyanide catalysts are active polymerization catalysts for alkylene oxides. These catalysts tend to have short induction periods, followed by rapid polymerization of alkylene oxides to polyethers.

Abstract: A process for the purification of polyethers prepared by acid catalyzed condensation of polyhydroxy compounds includes the steps of: (a) heating the polyether with water for a time and at temperature sufficient to substantially hydrolyze esters formed during polymerization; and (b) separating the polyether from the water. The heating of the polyether and water may be conducted under reflux at a temperature of 60 to 100° C. for a period of 2 to 20 hours. The polyether recovered from step (b) may be subjected to further washing with hot water to remove residual acid.

Abstract: Metal [hexacyanometallate hexanitrometallate] complexes are useful alkylene oxide polymerization catalysts. The metal is any that forms a precipitate with hexacyanometallate and hexanitrometallate groups. These catalysts are made from less expensive raw materials than the common zinc hexacyanocobaltate catalysts, and provide short induction periods and in many cases more controlled exotherms.

Abstract: Disclosed is a process for making alkoxylates of organic compounds. The process requires a) providing an active hydrogen organic compound having 1 to 22 carbon atoms and b) alkoxylating the organic compound with an alkylene oxide in the presence of a catalytically effective amount of a rare earth triflimide of the following formula: R1R2R3X wherein X is a lanthanide; R1, R2, and R3 each being independently a triflimide group of the following formula: N(SO2Z)2 wherein Z is CnF2n+1; C being a carbon atom; F being a fluorine atom; and n being an integer from 1 to 15.

Abstract: The process for preparing an alkylene oxide adduct, including the steps of feeding an organic compound having active hydrogen and an alkylene oxide to a reaction column packed with a solid catalyst, and carrying out addition reaction of the organic compound having active hydrogen with an alkylene oxide in a gas-liquid fixed bed reaction, wherein the alkylene oxide is in a state of gas and the organic compound having active hydrogen is in a state of liquid.

Abstract: The invention is a high molecular weight polyether polyol prepared by the reaction of one or more compounds having one or more active hydrogen compounds with one or more alkylene oxides in the presence of a catalyst comprising calcium having counterions of carbonate and a C6-10 alkanoate in a solvent or dispersant which does not contain active hydrogen atoms. The polyether polyol prepared preferably has an equivalent weight of from about 1000 to about 20,000, a polydispersity of 1.3 or less and a residual catalyst level of from about 0 to about 2000 parts per million (ppm). In another embodiment the invention is a process for preparing such high molecular weight polyether polyols. The process comprises first, contacting one or more compounds having one or more active hydrogen atoms with one or more alkylene oxides in the presence of a catalyst. The catalyst comprises calcium having counterions of carbonate and a C6-10 alkanoate in a solvent, wherein the solvent does not contain active hydrogen atoms.

Abstract: An activated, substantially water soluble poly(ethylene glycol) is provided having of a linear or branched poly(ethylene glycol) backbone and at least one terminus linked to the backbone through a hydrolytically stable linkage, wherein the terminus is branched and has proximal reactive groups. The free reactive groups are capable of reacting with active moieties in a biologically active agent such as a protein or peptide thus forming conjugates between the activated poly(ethylene glycol) and the biologically active agent.

Abstract: Oxygenated organic compounds exhibiting the desired combination of advantageous properties have structures represented by the formula CH3 E (CH2O)x (CHO)y E′ where E is selected from the group consisting of CH3O— and CH3CH2O—, E′ is selected from the group consisting of —CH3 and —CH2CH3, x is a number from 0 to about 10, y is number from 0 to about 10 such that the sum (x+y) is at least 2. Economical processes are disclosed for production of a mixture of oxygenated organic compounds which are suitable components for blending into fuel having improved qualities for use in compression ignition internal combustion engines (diesel engines).

Abstract: The present invention provides a method for alkoxylating organic compounds comprising contacting an organic compound adapted to be alkoxylated with an alkylene oxide in a reaction vessel under conditions effective to alkoxylate the organic compound. The alkylene oxide is maintained in vapor form during transport to said reaction vessel, during discharge into said reaction vessel, and during contacting of the organic compound with the alkylene oxide. The result is an alkoxylated product containing less flocculant.

Abstract: The present invention relates to a process for the preparation of diesters of poly (ethylene glycol) by reacting poly (oxyalkylene glycol) and amino acid hydrochloride in the presence of a condensing agent in a suitable solvent at a temperature in the range of 0° C. to room temperature for a period ranging between 1 hour to 24 hours. The reaction mixture is then filtered and the filtrate poured into another solvent, which is a nonsolvent for the products. The products precipitated thereby are then isolated.

Abstract: Organo-Lewis acids of the formula BR′R″2 wherein B is boron, R′ is fluorinated biphenyl, and R″ is a fluorinated phenyl, fluorinated biphenyl, or fluorinated polycyclic fused ring group, and cationic metallocene complexes formed therewith. Such complexes are useful as polymerization catalysts.

Abstract: The process for preparing an alkylene oxide adduct, including the steps of feeding an organic compound having active hydrogen and an alkylene oxide to a reaction column packed with a solid catalyst, and carrying out addition reaction of the organic compound having active hydrogen with an alkylene oxide in a gas-liquid fixed bed reaction, wherein the alkylene oxide is in a state of gas and the organic compound having active hydrogen is in a state of liquid.

Abstract: The present invention is directed to a method for producing fluorine-containing oxyalkylene compounds used in a cement admixture represented by the formula (4), which comprises ring opening polymerization of at least one cyclic ether represented by the formula (3) in the presence of an acid catalyst and a fluorine-containing hydroxyl compound represented by the formula (2): Rf—Q2—OH  (2)  Rf—Q2—O—(A2—O)k—H  (4) wherein Rf is a C1-22 polyfluoroaliphatic hydrocarbon group which may contain ethereal oxygen atoms or thioethereal sulfur atoms, Q2 is a C3-5 linear or branched alkylene group, k is an integer of from 1 to 100, and A2 is a C2-4 linear alkylene group or a group having at least one hydrogen atom of said alkylene group substituted by a hydrocarbon group which may contain ethereal oxygen atoms.

Abstract: To provide a polyalkylene glycol-based refrigerant oil for refrigerators using ammonia as a refrigerant.

Abstract: The invention is a preparation process of alkylcyclohexanol alkylene oxide adduct which contains almost no alkylphenol alkylene oxide adduct 1) in the absence of a solvent, 2) in the presence of a saturated hydrocarbon solvent, or 3) in the presence of water.

Abstract: Hybrid electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring and a vinyl ether moiety.

Abstract: Alkanols are oxyalkylated by a process in which the reaction is carried out using a heterogeneous basic catalyst which is selected from basic aluminates, and the compounds prepared thereby are used as carrier oils in fuel additives or as nonionic surfactants in detergents or cleaning agents.

Abstract: Compounds containing both electron donor and electron acceptor functionality are suitable for use in adhesives. The electron donor group is a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the ring. The electron acceptor group is a maleimide, acrylate, fumarate or maleate.

Abstract: A particularly useful process which includes the steps of providing a feedstream comprising a soluble condensation promoting component capable of activating a heterogeneous acidic catalyst and a source of formaldehyde formed by conversion of dimethyl ether in the presence of a catalyst comprising silver as an essential catalyst component; and heating the feedstream with the heterogeneous acidic catalyst in a catalytic distillation column to convert methanol and formaldehyde present to methylal and higher polyoxymethylene dimethyl ethers and to separate the methylal from the higher polyoxymethylene dimethyl ethers is disclosed. Advantageously, methylal and higher polyoxymethylene dimethyl ethers are formed and separated in a catalytic distillation column.

Abstract: A process for preparing perfluoropolyoxyalkylenes with hydroxyl end groups having structure:

Abstract: The present invention provides a process for producing a (poly)alkylene glycol monoalkyl ether with high selectivity and high yield. In this process, the (poly)alkylene glycol monoalkyl ether is produced by reacting an olefin and a (poly)alkylene glycol in the presence of a catalyst, wherein: 1) a crystalline metallosilicate is used as the catalyst, and at least a portion of the used catalyst is regenerated, and the regenerated catalyst is recycled as the catalyst for the reaction; or 2) the reaction between the olefin and the (poly)alkylene glycol is carried out in the presence of either or both of a (poly)alkylene glycol dialkyl ether and an alcohol.

Abstract: There is provided a process for preparing a poly(alkylene oxide) by using a polymerization initiator which does not cause any problem on preparing and handling in the preparation of the polyalkylene oxide by polymerizing an alkylene oxide compound and does not require a special treatment before the initiation of the polymerization. That is, it is a process of polymerizing the alkylene oxide compound in the presence of a phosphine oxide compound represented by the formula (1): wherein R is the same or different and each represents a hydrocarbon group having 1 to 10 carbon atoms, and x represents an amount of water molecules contained in terms of a molar ratio and is within a range from 0 to 5.0, or in the presence of said phosphine oxide compound and an active hydrogen compound selected from water or an organic compound having a partial structural formula —OH or —NH—.

Abstract: Most generally, the invention provides a method for making a neutralized polyether polyol, comprising the steps of a) Polymerizing one or more alkylene oxides in the presence of an alkaline catalyst to form a polyalkylene oxide intermediate; and b) Neutralizing the intermediate, after the polymerization step a) is complete, with an organic acid of general formula where R1 is hydrogen, methyl, or ethyl; R2 is methyl or ethyl; and R3 is an alkyl, aryl, or aralkyl group containing one to twelve carbon atoms. The invention also comprises the novel compositions made by the above process.

Abstract: An organic compound which is basic and soluble in an organic solvent, does not have a problem in preparation or handling and exhibits catalytic activity as a basic compound, i.e., a phosphine sulfide represented by formula (1), and a manufacturing process therefor, i.e., manufacturing a phosphine sulfide represented by formula (1), by reacting one molecule of thiophosphoryl chloride with three molecules of a phosphorane represented by formula (2). The phosphine sulfide can be used in a process for effectively manufacturing a poly(alkylene oxide) by polymerizing an alkylene oxide in the presence of the phosphine sulfide or of the phosphine sulfide and an active hydrogen compound selected from water and organic compounds having a partial structure of --OH or --NH--; and 2) a process for manufacturing a 1,2-dioxyethane derivative from an epoxy compound, i.

Abstract: The invention is a new family of non-ionic surfactants and a method of making same. The surfactants are made by (1) alkoxylating an alkylphenol with an alkylene oxide using a standard alkylene catalyst; (2) hydrogenating the alkoxylated alkylphenol until it is either fully or partially saturated using selective catalysts such that the aromaticity of the compound is eliminated; (3) if necessary, further alkoxylating the resulting non-aromatic molecule. The resulting compound is an alkylcyclohexanol alkoxylate possessing excellent surfactant properties for use as a emulsifiers, for wetting and penetration, for scouring, and general surface modification.

Abstract: Polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butyne-1,4-diol, diesters of these polymers with C.sub.2 -C.sub.20 -monocarboxylic acids or monoesters of these polymers with C.sub.1 -C.sub.10 -monocarboxylic acids are prepared by polymerization of tetrahydrofuran in the presence of one of the telogens water, 1,4-butanediol, 2-butyne-1,4-diol, polytetrahydrofuran having a molecular weight of from 200 to 700 Dalton, a C.sub.1 -C.sub.10 -monocarboxylic acid or an anhydride of a C.sub.2 -C.sub.20 -monocarboxylic acid or a mixture of these telogens over a heterogeneous supported catalyst which comprises a catalytically active amount of an oxygen-containing molybdenum and/or tungsten compound on an oxidic support material and which has been calcined at from 5OO.degree. C. to 1OOO.degree. C.

Abstract: The synthesis of the organo-Lewis acid perfluorobiphenylborane (PBB) and the activation of metallocenes for the formation of a variety of highly active homogeneous Ziegler-Natta metallocene olefin polymerization, copolymerization and ring-opening polymerization catalysts is described.

Abstract: This invention relates to novel polyether polyols and to a process for their production. These polyether polyols are prepared by forming a polyhydroxyl group containing component in a first step by the reaction of a triazole-group containing compound with a compound that contains at least one functional group that is capable of reacting with the amine groups of the triazole group containing compound, and reacting the hydroxyl-group containing component with an alkylene oxide to form the polyether polyol of the invention. The present invention also relates to isocyanate-reactive compositions comprising these novel polyether polyols, and to a process for the production of a polyurethane comprising reacting a polyisocyanate with the novel polyether polyols of the present invention.

Abstract: A particularly useful process which includes the steps of providing a source of formaldehyde formed by conversion of dimethyl ether in the presence of a catalyst comprising silver as an essential catalyst component; and contacting the source of formaldehyde and a predominately dimethyl ether feedstream with a heterogeneous, condensation promoting catalyst capable of hydrating dimethyl ether under conditions of reaction sufficient to form an effluent comprising water, methanol, formaldehyde, dimethyl ether, and polyoxymethylene dimethyl ethers is disclosed. Unreacted dimethyl ether is recovered from the effluent and recycled to the formation of polyoxymethylene dimethyl ethers. The resulting dimethyl ether-free liquid mixture is heated in the presence of an acidic catalyst to convert at least the methanol and formaldehyde present to polyoxymethylene dimethyl ethers. Advantageously, methylal and higher polyoxymethylene dimethyl ethers are formed and separated in a catalytic distillation column.

Abstract: Novel nonionic gemini surfactants are extremely effective emulsifiers for oil-in-water emulsions that provide improved detergency at even low concentration levels. The surfactants are characterized by the formula: ##STR1## wherein R.sub.1 is independently H or a C.sub.1 to C.sub.22 alkyl, R.sub.2 is C.sub.6 to C.sub.22 alkyl and R.sub.3 is D.sub.1 --R.sub.4 --D.sub.1 or R.sub.4 --D.sub.1 --R.sub.4 wherein R.sub.4 is independently a C.sub.1 -C.sub.10 alkyl group, --O--R.sub.5 --O--, or aryl, e.g. phenyl, and D.sub.1 is independently --O--, an amide group ?--C(O)N(R.sub.6)--!, an amino group ?--N(R.sub.6)--!, --O--R.sub.5 --O--, or aryl. (EO).sub.a (PO).sub.b is a polyether group and Z is a C.sub.1 -C.sub.4 alkyl, or an alkylaryl or hydrogen wherein EO represents ethyleneoxy radicals, PO represents propyleneoxy radicals, a and b are numbers of from 0 to 100, a is preferably from about 0 to about 30 and b is preferably from about 0 to 10, wherein a plus b is at least one, and the EO and PO alkyl or alkylaryl.

Abstract: Disclosed is an oxyalkylene-modified polyoxybutylene alcohol having an improved viscosity index. Notably enhancement of the viscosity index is obtained when the polyoxybutylene alcohol contains an internal oxypropylene or oxyethylene block; and wherein the total amount of converted butylene oxide in the molecule is from 99 to 75 parts per 100 parts by weight of the total converted alkylene oxide.

Abstract: A process in which carbon is used to catalyze production of alkylene glycols from alkylene oxides and water. Using this process, carbon may be employed to selectively catalyze the hydrolysis of alkylene oxides, such as ethylene oxide, to monoalkylene gylcols, such as monoethylene glycol. Typically, activated carbon is employed. Suitable forms of activated carbon or other carbon material include powders, granulates, extruded shapes, or mixtures thereof. The process may be carried out as a continuous or batch reaction process.

Abstract: A monomer mixture having a hydroxyl value ranging from 0 to 134 KOH mg/g, obtainable by polymerizing a mixed raw material of an unsaturated compound selected from the group consisting of fatty acids each having one carboxyl group and one double bond in the molecule and having 11 to 22 carbon atoms and lower alkyl esters thereof with an unsaturated compound selected from the group consisting of fatty acids each having one carboxyl group and 2 to 4 double bonds in the molecule and having 11 to 22 carbon atoms and whose iodine value ranges from 30 to 130 g (iodine)/100 g to give dimers and trimers, then converting the carboxyl groups (or the lower alkyl ester group in case of the lower alkyl esters) present in the resulting dimers and trimers into hydroxyl groups through reduction to give a mixture substantially consisting of dimer diols and trimer triols, and then subjecting the mixture having a dimer diol/trimer triol weight ratio ranging from 30/70 to 99/1 to an esterification reaction with an .alpha., .beta.

Abstract: A process for the preparation of polytetrahydrofuran or polytetrahydrofuran monoesters of C.sub.1 -C.sub.10 monocarboxylic acids by the polymerization of tetrahydrofuran over a heterogeneous catalyst in the presence of one of the telogens water, 1,4-butanediol or polytetrahydrofuran having a molecular weight of from 200 to 700 dalton or a C.sub.1 -C.sub.10 monocarboxylic acid or mixtures of these telogens, wherein a supported catalyst is used as catalyst, which contains a catalytically active amount of an oxygen-containing tungsten or molybdenum compound or mixtures of these compounds on an oxidic support material and which was calcined at temperatures ranging from 500.degree. to 1000.degree. C. following the application of the precursor compounds of said oxygen-containing molybdenum and/or tungsten compounds to the support material precursor.

Abstract: The present invention deals with the composition of matter and the utilization of certain novel polyoxyalkylene glycol esters which are prepared by the reaction of a guerbet acid and a polyoxylalkylene glycol as emulsifiers.

Abstract: Polyoxyalkylene glycol monoethers of monohydric alcohols are prepared by a process in which tetrahydrofuran or a mixture of tetrahydrofuran with a total of not more than 95 mol %, based on the amount of tetrahydrofuran used, of one or more comonomers from the group consisting of the cyclic ethers and acetals is polymerized in the absence of water and in the presence of a monohydric alcohol and of an anhydrous heteropoly acid catalyst.

Abstract: A process for the preparation of a perfluoropolyether having a general formula: ##STR1## as defined hereinbefore, which process includes the direct fluorination with elemental fluorine of a polyether having a general formula: ##STR2## as defined hereinbefore, wherein the fluorination is carried out in the presence of a solvent which is an ether having at least one substituent R.sub.F, wherein R.sub.F is a fluorinated hydrocarbon group. The said solvent ether is preferably a fluorinated volatile ether. The said solvent ether preferably has at least two groups R.sub.F which may be the same or different groups. Each group R.sub.F preferably has from two to four carbon atoms and at least two fluorine atoms. The said solvent ether may be an alicyclic ether having from 3 to 5 carbon atoms in its alicyclic ring.

Abstract: Polyoxyalkylene glycol monoesters of carboxylic acids are prepared by a process in which tetrahydrofuran or a mixture of tetrahydrofuran with a total of not more than 95 mol %, based on the amount of tetrahydrofuran used, of one or more comonomers from the group consisting of the cyclic ethers and acetals is polymerized in the absence of water and in the presence of a carboxylic acid and of an anhydrous heteropolyacid catalyst.

Abstract: The present invention relates to a poly(oxyalkylated) alcohol composition represented by the formula:R.sub.1 O[CH.sub.2 CH(CH.sub.3)O].sub.x (CH.sub.2 CH.sub.2 O).sub.y [CH.sub.2 CH(OH)R.sub.2 ]wherein R.sub.1 is a linear, aliphatic hydrocarbon radical having from about 4 to about 18 carbon atoms including mixtures thereof; and R.sub.2 is a linear, aliphatic hydrocarbon radical having from about 2 to about 26 carbon atoms including mixtures thereof; x is an integer having a value from 1 to about 3; y is an integer having a value from 5 to about 30. Also disclosed is an automatic dishwasher composition comprising the above-described epoxy-capped poly(oxyalkylated) alcohol and at least one component selected from the group consisting of detergent builder, bleach, anti-wear agent, and mixtures thereof. Also disclosed is a cleaning composition for cleaning hard surfaces comprising an aqueous or organic solvent and the above-described epoxy-capped poly(oxyalkylated) alcohol as a surfactant.

Abstract: Propenyl ether monomers of formula VA(OCH.dbd.CHCH.sub.3).sub.nwherein n is an integer from one to six and A is selected from cyclic ethers, polyether and alkanes are disclosed. The monomers are readily polymerized in the presence of cationic photoinitiators, when exposed to actinic radiation, to form poly(propenyl ethers) that are useful for coatings, sealants, varnishes and adhesives. Compositions for preparing polymeric coatings comprising the compounds of formula V together with particular cationic photoinitiators are also disclosed, as are processes for making the monomers from allyl halides and readily available alcohols. The process involves rearranging the resulting allyl ethers to propenyl ethers.

Abstract: Water-in-oil emulsions are broken by the use of adducts prepared by reacting high molecular weight polyalkylene glycol with ethylene oxide, or diglycidyl ether, or both ethylene oxide and diglycidyl ether. The adduct demulsifiers may be used alone or as a blend with other demulsifiers.