Abstract: The invention relates to novel method of incorporating free fatty acid into soap-based bars to minimize or eliminate efflorescence and to compositions made by the process.

Abstract: The present invention relates to bar compositions in which an emollient composition comprising thickened entrapped emollient is added to a base bar composition at or during time of extrusion to form macroscopic, concentrated domains of emollient droplets. Addition of entrapped droplets allows far greater deposition than if the non-trapped emollients had been mixed in directly to form chips which are then extruded to form final bar.

Abstract: The present invention relates to novel chip compositions containing specific polyol ester as the major carrier for liquid skin benefit agents. Addition of specific polyol esters wherein the melting temperature and HLB are specifically defined has been found to remarkably enhance the oil/humectant structuring capability of a skin cleansing bar. Such a polyol ester also permits the liquid benefit agents to be released into a personal wash liquor and then to be delivered to skin via personal wash. In a second embodiment, the invention relates to a method for enhancing the bar's capability of including high levels of oil and/or humectant by applying the adjuvant technology. That is, by coextruding and stamping the mixture of chips containing skin benefit agents and base chips containing a surfactant system, high levels of oils and/or humectants can be incorporated into solid toilet bars by standard extrusion technology.

Abstract: Novel chip compositions comprise alkylene glycol, benefit agent and thickening agent (e.g., fumed silica). Use of chips comprising excess of alkylene glycol over benefit agent and thickening agent has been found to allow significant deposition of benefit agent without compromising processing. In a second embodiment, the invention comprises bar compositions comprising mixtures of the chips of the invention and chips containing defined surfactant systems. A process for forming the chips of the invention and a method of enhancing deposition without compromising processing using the chips of the invention are also disclosed.

Abstract: The present invention relates to bar compositions in which an emollient composition comprising thickened entrapped emollient is added to a base bar composition at or during time of extrusion to form macroscopic, concentrated domains of emollient droplets. Addition of entrapped droplets allows far greater deposition than if the non-trapped emollients had been mixed in directly to form chips which are then extruded to form final bar.

Abstract: Adjuvant powder compositions contain a benefit agent or benefit agents and enhance the delivery of these benefit agent or agents when used as a separate adjuvant during preparation of bar compositions. Carriers used in the formation of the adjuvants must have a melting point high enough to survive a spray-drying process.

Abstract: An extruded toilet bar composition comprises mixtures of chips containing polyalkylene glycol, benefit agent and fumed silica, and chips containing a surfactant system.

Abstract: A process for making bars having enhanced deposition of benefit agent wherein the process comprises mixing adjuvant powder compositions which contain a benefit agent or agents and surfactant-containing "base" or regular chips; plodding and extruding to form final bar.

Abstract: The present invention relates to synthetic bar compositions comprising minimum levels of polyalkylene glycol. Addition of organic amide to such compositions has been found to provide unexpected benefits, i.e., in preventing phase separation.

Abstract: The present invention relates to synthetic detergent bars comprising 10-60% by wt. synthetic detergent surfactant; 10-60% of a water soluble structuring of water soluble structurant of MP between 40.degree. to 100.degree. C.; and 5-50% by wt. of a water-insoluble structurant of MP between 4.degree.--100.degree. C. Unexpectedly, applicants have found that addition of "true" water soluble starches yields processing and composition advantages.

Abstract: The present invention relates to the toilet bar compositions comprising, as sole active system, 50-95% of active system soap and 5 to 50% of active system aldobionamide, said active system comprising about 75% to 95% by wt. of the toilet bar composition.