Brominated butadiene/vinyl aromatic copolymers, blends of such copolymers with a vinyl aromatic polymer and polymeric foams formed from such blends
Patent 7851558 Issued on December 14, 2010. Estimated Expiration Date: 
October 23, 2026. 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.
October 23, 2026. 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 References 3639304 3640941 3652494 3652678 3668155 Particulate, expandable self-extinguishing styrene polymers showing good processability Process for preparing brominated polystyrene Patent #: 5532322 Inventors
AssigneeApplicationNo. 12091346 filed on 10/23/2006US Classes:525/331.9Polymer derived from monomer containing at least two ethylenic groups or diene rubberExaminersPrimary: Zemel, Irina SAttorney, Agent or FirmForeign Patent References
International ClassesC08F 236/06C08L 9/00 AbstractA thermally stable brominated butadiene copolymer, such as brominated styrene/butadiene block copolymer, brominated random styrene/butadiene copolymer or brominated styrene/butadiene graft copolymer, preparation of the brominated butadiene copolymers, use of the brominated butadiene copolymers as a flame retardant additive and polymeric compositions, both foamed and non-foamed, that incorporate a flame-retarding amount of brominated butadiene copolymer.Other References
Field of SearchMixture contains solid polymer derived from nonaromatic reactant containing plural ethylenically unsaturated groupsWith solid polymer derived from reactant containing an atom other than C, H or chalcogen Solid polymer derived from reactant containing a carboxylic acid group Solid polymer derived from reactant containing at least two ethylenic groups and is devoid of aryl ring Solid polymer derived from an aromatic hydrocarbon reactant Polymer derived from ethylenic reactants only mixed with ethylenic reactant Monomer contains non-conjugated diene group or at least one fused or bridged ring or at least one cycloaliphatic structure Interpolymer with aromatic hydrocarbon Polymer derived from monomer containing at least two ethylenic groups or diene rubber Polymer derived from aromatic hydrocarbon monomer, e.g., styrene, etc. Halogenated polymer Chemical treating agent contains hydrogen halide, elemental halogen, organic halogen-containing compound, or compound containing only halogen atoms Treating in the presence of organic halogen-containing compound Two or more solid polymers derived from ethylenic reactants only From hydrocarbon monomer containing at least two ethylenic groups, e.g., butadiene, etc. 525/259.2 | |
