C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/3040, 400/63
C08K 5/53 (2006.01) C07F 9/53 (2006.01) C08K 5/5397 (2006.01) C08L 25/04 (2006.01) C08L 51/04 (2006.01) C08L 55/02 (2006.01)
Patent
CA 1187643
ABSTRACT Thermoplastic polyphenylene oxide compositions such as polyphenylene oxide that has been modified with high im- pact polystyrene are rendered fire retardant by the addition of an effective amount of a 3-hydroxyalkyl phosphine oxide such as n-butyl bis(3-hydroxypropyl) phosphine oxide. The compositions are useful as engineering thermoplastics in the manufacture of appliances and in the transportation and elec- trical/electronic industries. The PPO/styrene resins of the invention are superior in flame resistance to such resins containing phosphate esters as the flame retardant agent.
369351
Braksmayer Diza P.
Hussain Syed N.
Fmc Corporation
Osler Hoskin & Harcourt Llp
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