Aromatic dimethicone copolyol polymers as sunscreen agents
Patent 6346595 Issued on February 12, 2002. Estimated Expiration Date: 
July 7, 2020. 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 7, 2020. 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 ReferencesUltraviolet light absorbing compounds, silicone compositions and methods for making same Efficient diesel fuel antifoams of low silicon content Continuous manufacture of silicone coploymers Diesel fuel antifoam composition Method for restricting air entrapment in a paper making process Patent #: 6162330 InventorAssigneeApplicationNo. 611553 filed on 07/07/2000US Classes:528/29, Organic Si-free reactant is an alcohol or alcoholate528/25, With organic silicon-free reactant528/31, Silicon reactant contains a silicon-to-hydrogen bond528/33, Silicon reactant contains two or more silicon atoms556/445, Two carbons bonded directly to the same oxygen556/449, Hydroxy bonded directly to carbon or peroxy bonded directly to two carbons or to hydrogen and carbon (H of the hydroxy or the H bonded to the peroxy may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal)556/450, Two silicons bonded directly to the same oxygen556/453, Three carbons bonded directly to the same silicon556/478, Silicon to carbon bond formed556/487, Hydrogen bonded directly to the silicon556/489Unsaturated carbocyclic ring containingExaminersPrimary: Dawson, Robert A.Assistant: Robertson, Jeffrey B. Foreign Patent References
International ClassesC08G 077/04C08G 077/06 AbstractThe present invention relates to novel dimethicone copolyol compounds bearing ultra violet absorbing substituents. This invention also relates to compositions of matter, in particular cosmetic compositions, comprising the above novel compounds, which are especially well suited for the photoprotection of the skin and/or the hair against the deleterious effects of UV radiation, in particular solar radiation.Field of SearchWith organic silicon-free reactantOrganic Si-free reactant is an alcohol or alcoholate Silicon reactant contains a silicon-to-hydrogen bond Silicon reactant contains two or more silicon atoms Two carbons bonded directly to the same oxygen Hydroxy bonded directly to carbon or peroxy bonded directly to two carbons or to hydrogen and carbon (H of the hydroxy or the H bonded to the peroxy may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) Two silicons bonded directly to the same oxygen Three carbons bonded directly to the same silicon Silicon to carbon bond formed Hydrogen bonded directly to the silicon Unsaturated carbocyclic ring containing |
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