Fluorescent organosilicon compounds and methods
Patent 5302371 Issued on April 12, 1994. Estimated Expiration Date: 
August 10, 2012. 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.
August 10, 2012. 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.Patent References 2927839 2950986 Curable fluorescent organopolysiloxane compositions 5118776 InventorsAssigneeApplicationNo. 926621 filed on 08/10/1992US Classes:525/474, Solid polymer derived from silicon-containing reactant424/9.6, Diagnostic or test agent produces in vivo fluorescence424/70.122, Amino or amido containing424/78.02, TOPICAL BODY PREPARATION CONTAINING SOLID SYNTHETIC ORGANIC POLYMER AS DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI)424/78.19, Heterocyclic monomer424/78.27, Nitrogen or sulfur528/25, With organic silicon-free reactant528/28, Organic Si-free reactant is a nitrogen-containing compound528/38Silicon reactant contains an amine nitrogen atomExaminersPrimary: Webman, Edward J.Attorney, Agent or FirmInternational ClassesA61K 031/80C08F 008/36 C08G 077/388 C09K 011/06 AbstractA fluorescent organosilicon compound derived from the reaction of an aminofunctional organopolysiloxane and a fluorescent labeling reagent in which the fluorescent labeling reagent is incorporated into the molecule of the aminofunctional organopolysiloxane by means of a sulfonamide linkage. A method of treating hair is also disclosed in which the fluorescent organosilicon compound is applied to hair and the treated hair is examined for fluorescence under ultraviolet light in order to determine the extensiveness of deposition of the fluorescent organosilicon compound.Field of SearchTOPICAL BODY PREPARATION CONTAINING SOLID SYNTHETIC ORGANIC POLYMER AS DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI)Skin cosmetic coating Monomer contains oxygen Heterocyclic monomer Nitrogen or sulfur With organic silicon-free reactant Silicon reactant contains an amine nitrogen atom Organic Si-free reactant is a nitrogen-containing compound Fluorescent dye, e.g., stilbene, benzimidazole, benzoxazole, benzothiazole, pyrazoline dye, etc., optical brightner or bluing agent Silicon-containing Silicon Sulfonamides Hair Polymeric additive Solid polymer derived from silicon-containing reactant Atom other than C, H, S, O, or metal | |
