Patent GB-831856-A (GB)
Title: Soap and detergent compositions
IPC: C11D9/22
Filed: 1958-02-03
Abstract: A soap or synthetic detergent composition contains in intimate mixture therewith an acrylamide polymer which improves the lubricity of the composition, preferably in an amount by weight of 0.1-4% and in such a state of subdivision as to pass a 100-mesh screen, the polymer having a viscosity of at least 4 c.p.s. as measured in a 0.5% solution in aqueous 4% sodium chloride at pH 5-6 and at 25 DEG  C. The acrylamide polymer may be either a homopolymer, or a copolymer with (a) up to 15% by weight of such monomers as methacrylamide, lower alkyl esters of acrylic and methacrylic acids, acrylonitrile, vinyl chloride and vinyl alkyl ethers, or (b) somewhat higher proportions of acrylic or methacrylic acid or their alkali metal salts (generally up to 50 mol. per cent).  If required, the polymer may be hydrolysed to contain not more than 50% carboxyl groups (based on the total numbers of amide and carboxyl groups).  The compositions may incorporate sodium or potassium soaps, sodium lauryl sulphate, dodecylbenzene sulphonate, or coconut oil monoglyceride sulphate, nonylphenol polyglycol ether, borax, sodium tripolyphosphate and metasilicate, glycerol, mineral oil, carboxymethyl cellulose, diatomaceous earth, pumice, and bentonite, and witch hazel, perfumes and dyes.  The compositions may be produced as powders, bars, creams, or solutions.  In Example 9, an aerosol shave composition is obtained by incorporating the polymer in a pressure container with triethanolamine stearate and hydroxypropyl sucrose monomyristate, a mixture of dichlordifluoromethane and 1 : 2-dichloro - 1 : 11 : 2 : 2 - tetrafluoroethane being used as propellant.ALSO:Acrylamide polymers having a viscosity of at least 4 c.p.s. as measured in 0.5% solution in aqueous 4% sodium chloride at pH 5-6 and at 25 DEG  C. are incorporated in soap or synthetic detergent compositions.  The polymer may be either a homopolymer or a copolymer with (a) up to 15% by weight of such monomers as methacrylamide, lower alkyl esters of acrylic and metacrylic acid, acrylonitrile, vinyl chloride, and vinyl alkyl ethers, or (b) somewhat higher proportions, generally up to 50 mols. per cent, of acrylic or methacrylic acid or their alkali metal salts.  If required, the polymer may be hydrolysed to a carboxyl content not greater than 50%, based on the total number of carboxyl and amide groups present.  In any event, the polymers should have a low degree of cross-linking.  The polymer may be ground to pass a 100 mesh screen before incorporation into the soap composition.  In Example 4, a bubble blowing solution comprises 5 parts of an unspecified acrylamide polymer having a degree of hydrolysis of 1.5% and a viscosity of 4 c.p.s. (as measured above), 1 part of household detergent, and 2 parts of potassium coconut oil soap in 200 parts of water.  Other examples illustrate shaving creams, hand and toilet soaps, shampoos, abrasive hand cleaners and aerosol-type shave compositions in which products the following ingredients are also present; mineral oil, borax, tetrasodium borate, unspecified dyes and perfumes, glycerine, witch hazel, lanolin, diatomaceous earth, pumice, bentonite, sodium metasilicate, dichlorodifluoromethane and dichlorotetrafluoroethane.  Various conventional detergents and soaps, including triethanolamine salts, are specified.