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US 5,296,159 AGranted
Mild soap-synbar
AssigneeThe Procter & Gamble Company
InventorsDavid B. Wilson, Charles D. Tereck, Donald A. Niederbaumer, Robert G. Bartolo, Francisco A. Pichardo, Timothy J. Welch
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Abstract
Mild soap bars containing low levels of cationic polymeric skin mildness aid, polyethoxylated nonionic detergent surfactant to decrease scum formation and inhibit frosting, i.e., crystallization of nonionic detergent surfactant on the bar surface, and water. These bars are not beta-phase bars.
Claims16
A milled soap-synthetic bar comprising:
- (1) from about 55% to about 80% soap;
- (2) from about 0.5% to about 5% of cationic polymeric skin mildness aid selected from the group consisting of:
- (a) cationic polyalkylene imines, (b) cationic ethoxy polyalkylene imines, and (c) cationic poly[N-{-3-dimethylammonia)propyl}-N'-{3-(ethyleneoxyethylene dimethylammonio)propyl}urea dichloride];
- (3) from about 2% to about 5% of C.sub.14-20 alkyl polyethoxylate nonionic detrgent surfactant containing from about 70 to about 100 ethylene oxide moieties per molecule;
- and
- (4) from about 8% to about 10% water;
- wherein the soapbar does not contain soap in the beta-phase form;
- and wherein the surface of the soap bar does not show frosting or crystallization of the nonionic surfactant after storage of the bar.
5 more elements
Dependencies are inferred from the claim text.