Patent ID: 6288020
Filing Date: 2001-09-11
Classification: C11D

Abstract:
A method for making a detergent composition, comprising;providing an inner portion comprising at least one .alpha.-sulfofatty acid ester, the inner portion being free of substances that cause additional di-salt formation when in contact with the .alpha.-sulfofatty acid ester, said substances selected from consisting of zeolites, sodium silicate, sodium carbonate, caustic soda and persalts; andproviding an outer portion on at least one part of the inner portion, the outer portion inhibiting the at least one .alpha.-sulfofatty acid ester from said substances and at least one condition selected from temperature and humidity which causes more than a minor amount of additional di-salt formation; said outer portion selected from polyvinyl alcohol, partially or fully hydrolyzed polyvinyl alcohol, polyvinyl acetate, polyvinyl pyrrolidone, polyvinyl-mnethylemethacrylate copolymer, maleic acid/acrylic acid copolymer, ethylene/maleic anhydride copolymer, polyethylene glycol, acrylic acid polymer, carboxymethyl cellulose, cellulose ether, paraffin waxes, fatty acids, methyl ester sulfonate, soaps, waxes, water-soluble polymers, water-swellable polymers, or copolymers, salts or mixtures thereof.