Inorganic catalyst for alkoxylation of alcohols
Patent 4302613 Issued on November 24, 1981. Estimated Expiration Date: 
August 22, 2000. 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 22, 2000. 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 ReferencesEthoxylation with strontium bases Barium oxide catalyzed ethoxylation Patent #: 4239917 InventorsApplicationNo. 06/180236 filed on 08/22/1980US Classes:568/618, Preparing from organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal)568/616, Carbon to carbon unsaturation containing568/620, And cyclic ether568/622, Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal)568/623, Polyhydroxy containing568/624, Plural diverse oxyalkylene groups containing568/625, Plural diverse oxyalkylene groups containing568/678, Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal)568/679PolyetherExaminersPrimary: Mars, Howard T.Attorney, Agent or FirmInternational ClassesC07C 41/00 (20060101)C07C 41/03 (20060101) AbstractStrontium and barium-based catalyzed alkoxylation of alcohols of all classes is carried out more rapidly and produces a more peaked reaction product when carried out in the presence of co-catalysts such as calcium oxide, calcium carbide, calcium hydroxide, magnesium metal, magnesium hydroxides, zinc oxide, and aluminum metal.Field of SearchCarbon to carbon unsaturation containingPreparing from organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal) And cyclic ether Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) Polyhydroxy containing Plural diverse oxyalkylene groups containing Plural diverse oxyalkylene groups containing Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) Polyether |
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