Phosphoric esters of polyfluorinated alcohols, and their preparation
Patent 4034022 Issued on July 5, 1977. Estimated Expiration Date: 
July 5, 1994. 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 5, 1994. 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 References3100220 InventorsAssigneeApplicationNo. 05/206512 filed on 12/09/1971US Classes:558/90, Reactant having halogen attached directly to phosphorus by nonionic bonding544/84, Phosphorus attached directly or indirectly to a morpholine ring by nonionic bonding558/202, Halogen attached directly to the phosphorus by nonionic bonding987/202, Q-C-(X)-P-(N) or compound contains two or more P atoms and wherein Q contains an atom other than C or H (9/24A; 9/24A1; 9/24A6)987/203, Pentavalent P containing the structure (Hal)-P(X-C) wherein X is a chalcogen atom (9/14)987/224P is pentavalent and contains the structure P-(O-C) or P-(O-Z) where Z indicates an atom other than H (9/09; 9/09A1)ExaminersPrimary: Raymond, Richard L.Attorney, Agent or FirmForeign Application Priority Data1970-12-09 FRAbstractPhosphoric esters of polyfluorinated alcohols are disclosed comprising at least one isomer of phosphorous esters of polyfluorinated alcohols, or one of the derivatives thereof, said esters and derivatives thereof corresponding to the general formula: ##STR1## said two isomers corresponding to formulae (II) and (III): ##STR2## wherein Cn F2n+1 is a perfluorinated aliphatic chain, n is an integer from 2 to 18, X and Y are the same or different and are each a halogen atom, a hydroxy radical, the group OM in which M is a metallic equivalent, or an alkoxy, chloroalkoxy, hydroxypolyalkylenoxy, aryloxy, or --NZZ' group in which Z and Z' are the same or different and are each a hydrogen atom or an alkyl, cycloalkyl or aryl group.The preparation of phosphoric esters having the general formula (I) and mixtures of the isomers (II) and (III) thereof are also disclosed. |
| ||||||||||||||
