Flame-retardant, high-impact polycarbonate molding compounds
May 23, 2009. 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 ReferencesStabilized thermoplastic moulding compositions Process for the preparation of flame-resistant polycarbonate moulding compositions containing tetrafluoroethylene polymers Thermoplastic polycarbonate moulding compositions Thermoplastic moulding compositions having flame-retarding properties Thermoplastic molding material based on polycarbonate, ASA and vinylaromatics/an-containing copolymers Halogen-free flameproof molding materials Patent #: 4914144 InventorsApplicationNo. 355957 filed on 05/23/1989US Classes:524/139, Phosphorus directly bonded to at least one O and at least one H or C only524/140, P directly bonded to oxygen only524/141, Aryl group524/143, Cresyl phosphate, e.g., di, etc.524/504, Solid graft or solid graft-type copolymer with other solid polymer, SICP, or SPFI524/537Solid polymer or SICP derived from an -O-(C=O)O- or hal-(C=O)-O- containing reactantExaminersPrimary: Morgan, Kriellion S.Attorney, Agent or FirmForeign Patent References
International ClassesC08K 005/51C08K 005/521 C08K 005/529 Foreign Application Priority Data1988-06-04 DEAbstractThe invention relates to polycarbonate molding compounds consisting of halogen-free polycarbonates, graft polymers, phosphorus compounds, tetrafluoroethylene polymers and, optionally, copolymers and/or, optionally, other additives known per se and a process for their production. | |
