Hair treatment preparations
Patent 4784801 Issued on November 15, 1988. Estimated Expiration Date: 
July 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.InventorsAssigneeApplicationNo. 07/069790 filed on 07/02/1987US Classes:424/70.6, Hair coloring (nondyeing)424/70.19, Two or more designated surfactant containing424/70.24, Sulfur containing (sulfates, sulfonates, etc.)510/125, With organic sulfoxy containing component (e.g., sulfate, sulfonate, etc.)510/127, Organic sulfoxy containing component (e.g., sulfate, sulfonate, etc.)510/495, Sulfonic acid or sulfate monoester substituent in the component, or salt thereof8/429Developed on the hairExaminersPrimary: Lieberman, PaulAssistant: Markowski, Kathleen Attorney, Agent or FirmInternational ClassesC07C 309/00 (20060101)C07C 309/07 (20060101) C07C 303/00 (20060101) C07C 303/32 (20060101) C11D 1/14 (20060101) C11D 1/12 (20060101) C11D 1/02 (20060101) B01F 17/04 (20060101) B01F 17/00 (20060101) Foreign Application Priority Data1986-07-04 DEAbstractAqueous hair treatment preparations containing as anionic surfactant an alkylether sulfonate corresponding to the following formulain which R1 is a C8 -C18 alkyl group, n=2 or 3, x=0 to 20, y=1 to 3 and M(+) is an alkali metal ion. Alkylether sulfonates such as these show high foaming power, are easy to thicken and are stable to hydrolysis in acidic medium. They can be prepared by reaction of corresponding alkylether sulfates with sodium sulfite in aqueous solution and extraction from the reaction mixture with a saturated C4 -C6 alcohol.Other References
| |
