Patent Number: 6,251,843

Title: Synthetic detergent bar and manufacture thereof

Abstract: A detergent composition which is suitable for making into bars for personal washing comprises: (a) 10 to 60% wt. of a synthetic, non-soap detergent; (b) 20 to 60% wt. of water soluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40.degree. C. to 100.degree. C.; and (c) 5 to 50% wt. of water insoluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40.degree. C. to 100.degree. C. The content of water, if any does not exceed 20% wt. of the composition and better is less than 15% wt. The materials (b) and (c) serve to give structure to the bars. The compositions can be prepared by melting together the above mentioned components at a temperature of 50-100.degree. C., without the conventional energetic working. Desirably the molten mixture contains less than 20% wt. material, other than synthetic, non-soap detergent, which does not enter the liquid phase. The melt can be cast into bars or cooled, optionally milled and plodded and stamped into bars.

Inventors: Chambers; John George (Merseyside, GB), Joy; Bryan Stuart (Merseyside, GB), Katz; Melissa Iva (Weston, CT), Sheehan; John Gerrard (Brooklyn, NY)

Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.

International Classification: C11D 3/22 (20060101); C11D 3/12 (20060101); C11D 17/00 (20060101); C11D 3/37 (20060101); C11D 3/20 (20060101); A61K 007/50 (); C11D 017/00 ()

Expiration Date: 06/26/2018