The Procter Gamble Company

The Procter & Gambel Company

James E Thompson

Charles D Broaddus

Rajan Keshav Panandiker

Frederick E Hardy

Christiaan A Thoen

Pierre M Lenoir

Dwight M Peterson

Included is a liquid detergent composition comprising detersive surfactant, proteolytic enzyme, a detergent-compatible second enzyme, and an aryl boronic acid of the structure: ##STR1## where X is selected from C.sub.1 -C.sub.6 alkyl, substituted C.sub.1 -C.sub.6 alkyl, aryl, substituted aryl, hydroxyl, hydroxyl derivative, amine, C.sub.1 -C.sub.6 alkylated amine, amine derivative, halogen, nitro, thiol, thiol derivative, aldehyde, acid, acid salt, ester, sulfonate or phosphonate; each Y is independently selected from hydrogen, C.sub.1 -C.sub.6 alkyl, substituted C.sub.1 -C.sub.6 alkyl, aryl, substituted aryl, hydroxyl, hydroxyl derivative, halogen, amine, alkylated amine, amine derivative, nitro, thiol, thiol derivative, aldehyde, acid, ester, sulfonate or phosphonate; and n is 0 to 4.

Liquid detergents with an aryl acid for inhibition of proteolytic enzyme

The present invention relates to improved processes for selectively chlorinating acyl compounds at the alpha or 2-position. The process of the present invention comprises a method of producing alpha-chloro acyl chlorides comprising contacting an acyl chloride with a chlorine source at a temperature of about 75.degree. C. to about 125.degree. C. in the presence of (i) an effective amount of an auxiliary acidic agent and (ii) an effective amount of a food grade antioxidant and optionally (iii) an effective amount of oxygen or air.

Alpha chlorination process employing antioxidants

A hydrophilic phenol ester derivative, especially a sulphonated or carboxylated phenol ester is prepared by reacting a C.sub.6 -C.sub.18 substituted or unsubstituted aliphatic carboxylic acid with a C.sub.2 -C.sub.3 alkanoic anhydride, and reacting the resultant C.sub.6 -C.sub.18 acid anhydride with a substituted phenol such as an alkali metal phenol sulphonate salt or hydroxybenzene carboxylic acid to give a C.sub.6 -C.sub.18 acyloxy derivative of a substituted benzene. The two stage process may be carried out in the same reaction vessel without the use of solvents. The products are useful as peroxyacid bleach precursors.

Synthesis of hydrophilic phenol ester derivatives

This invention relates to peroxygen bleaching activator compounds and bleaching compositions. The peroxygen bleach activator compounds, used in combination with peroxygen bleach compounds which yield hydrogen peroxide in an aqueous solution, provide effective and efficient bleaching of textiles over a wide range of temperatures. In a highly preferred embodiment the bleaching compositions of the invention are detergent compositions.

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Cincinnati, OH, United States of America

James E Thompson