تفاعل #696691
ord-eb343aa2be7a453aa9d37e93b955eb6c
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Conventional, nonionic detersive surfactants for purposes of this invention include the polyethylene, polypropylene, and polybutylene oxide condensates of alkyl phenols. In general, the polyethylene oxide condensates are preferred. These compounds include the condensation products of alkyl phenols having an alkyl group containing from about 6 to about 12 carbon atoms in either a straight chain or branched chain configuration with the alkylene oxide. In a preferred embodiment, the ethylene oxide is present in an amount equal to from about 5 to about 25 moles of ethylene oxide per mole of alkyl phenol. Commercially available nonionic surfactants of this type include Igepal™ CO-630, marketed by the GAF Corporation; and Triton™ X-45, X-114, X-100, and X-102, all marketed by the Rohm & Haas Company. Nonionic surfactants also include the condensation products of aliphatic alcohols with from about 1 to about 25 moles of ethylene oxide. The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from about 8 to about 22 carbon atoms. Particularly preferred are the condensation products of alcohols having an alkyl group containing from about 10 to about 20 carbon atoms with from about 2 to about 10 moles of ethylene oxide per mole of alcohol. Examples of commercially available nonionic surfactants of this type include Tergitol™ 15.5.9 (the condensation product of C11 -C15 linear alcohol with 9 moles ethylene oxide), Tergitol™ 24-L-6 NMW (the condensation product of C12 -C14 primary alcohol with 6 moles ethylene oxide with a narrow molecular weight distribution), both marketed by Union Carbide Corporation; Neodol™ 45-9 (the condensation product of C14 -C15 linear alcohol with 9 moles of ethylene oxide), Neodol™ 23-6.5 (the condensation product of C12 -C13 linear alcohol with 6.5 moles of ethylene oxide), Neodol™ 45.7 (the condensation product of C14 -C15 linear alcohol with 7 moles of ethylene oxide), Neodol™ 45.4 (the condensation product of C14 -C15 linear alcohol with 4 moles of ethylene oxide), marketed by Shell Chemical Company, and Kyro™ EOB (the condensation product of C13 -C15 alcohol with 9 moles ethylene oxide), marketed by The Procter & Gamble Company. The condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol can also be used. The hydrophobic portion of these compounds preferably has a molecular weight of from about 1500 to about 1800 and exhibits water insolubility. The addition of polyoxyethylene moieties to this hydrophobic portion tends to increase the water solubility of the molecule as a whole, and the liquid character of the product is retained up to the point where the polyoxyethylene content is about 50% of the total weight of the condensation product, which corresponds to condensation with up to about 40 moles of ethylene oxide. Examples of compounds of this type include certain of the commercially available Pluronic™ surfactants, marketed by BASF. Cationic detersive surfactants can also be included in detergent compositions of the present invention. Cationic surfactants include the ammonium surfactants such as alkyldimethylammonium halogenides, and those surfactants having the formula: [R2 (OR3)y ][R4 (OR3)x ]3R3N+X- ; wherein R2 is an alkyl or alkyl benzyl group having from about 8 to about 18 carbon atoms in the alkyl chain, each R3 is selected from the group consisting of --CH3CH2 --, --CH2CH(CH3)--, --CHCH(CH2OH)--, --CH2CH2CH2 --, and mixtures thereof; each R4 is selected from the group consisting of C1 -C4 alkyl, C1 -C4 hydroxylalkyl, benzyl ring structures formed by joining the two R4 groups, --CH2CHOH----CHOHCOR6CHOHCH2OH wherein R6 is any hexose or hexose polymer having a molecular weight less than about 1000, and hydrogen when y is not O; R5 is the same as R4 or is an alkyl chain wherein the total number of carbon atoms of R2 plus R5 is not more than about 18; each y is from 0 to about 10 and the sum of the y values is from 0 to about 15; and X is any compatible anion.