Particulate, expandable self-extinguishing styrene polymers showing good processability
Process for preparing brominated polystyrene Patent #: 5532322
ApplicationNo. 12091346 filed on 10/23/2006
US Classes:525/331.9Polymer derived from monomer containing at least two ethylenic groups or diene rubber
ExaminersPrimary: Zemel, Irina S
Attorney, Agent or Firm
Foreign Patent References
International ClassesC08F 236/06
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.
Field of SearchMixture contains solid polymer derived from nonaromatic reactant containing plural ethylenically unsaturated groups
With 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.
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.