Silicone taurine polymers
Patent 5280099 Issued on January 18, 1994. Estimated Expiration Date: 
April 22, 2013. 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.
April 22, 2013. 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 ReferencesSilicone amphoteric polymers Silicone polymers Silicone ester quaternary compounds Patent #: 5166297 InventorsAssigneeApplicationNo. 051181 filed on 04/22/1993US Classes:528/28, Organic Si-free reactant is a nitrogen-containing compound556/425, Two silicons bonded directly to the same oxygen556/428Chalcogen bonded directly to sulfurExaminersPrimary: Marquis, Melvyn I.International ClassC08G 077/04AbstractThe present invention relates to a series of novel taurine functional silicone polymers, useful in softening hair, and fiber and conditioning skin.Since the compounds of the present invention are high molecular weight silicone polymers, they have a high degree of oxidative stability, even at elevated temperatures.The compounds of the present invention are prepared by the reaction of chloro silicone intermediate with a taurine derivative. In a preferred embodiment the hydroxy containing silicone polymer has been alkoxylated with ethylene oxide, propylene oxide or mixtures thereof. The ability regulate the type of alkylene oxide and amount present in the silicone polymer results in a series of products ranging in water/oil solubility. The technology used to produce the compounds of the present invention is very flexible and allows us to prepare performance tailored molecules for specific applications. |
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