C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 71/12 (2006.01) C08J 9/00 (2006.01) C08J 9/16 (2006.01) C08K 5/02 (2006.01) C08L 25/00 (2006.01)
Patent
CA 2059299
Certain organobromines are added to blends of polyphenylene ether and alkenyl aromatic polymer to reduce mold cool time of the composition. These organobromines also reduce residual blowing agent in the composition after expansion and especially following molding of the composition. The organobromines of this invention are as follows: tetrabromocyclooctane, hexa-bromocyclododecane, tetrabromovinylcyclohexene and bis(allyl ether) of tetrabromobisphenol.
On ajoute certains organobromés à des mélanges d'éther polyphénylénique et de polymère aromatique alcénylique afin de réduire le temps de refroidissement de moulage de cette composition. Ces organobromés réduisent aussi l'agent d'expansion restant dans la composition après l'expansion et particulièrement à la suite du moulage de la composition. Les organobromés de cette invention sont les suivants : tétrabromocyclooctane, hexabromocyclododécane, tétrabromovinylcyclohexène et éther bisallylique du tétrabromobisphénol.
Joyce James M.
Kelley Donald J.
Bereskin & Parr
Huntsman Chemical Corporation
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