Foamed polyester resins with flame retardant properties

Details Foamed polyester resins with flame retardant properties Foamed polyester resins with flame retardant properties

C - Chemistry, Metallurgy

08

K

C08K 5/06 (2006.01) C08J 9/12 (2006.01) C08K 5/03 (2006.01) C08K 5/3417 (2006.01) C08G 63/80 (2006.01)

Patent

CA 2247787

Flame retardant compositions comprising a polyester resin having melt strength higher than 8 centinewton and intrinsic viscosity greater than 0.8 dl/g, suitable for the preparation of foamed cellular material and a flame retardant compound capable of not reducing below 3 Nm the torque intake of the resin in a heating test at 280°C under nitrogen for 10 minutes in the presence of 10% in weight of the flame retardant compound.

Divulgation de compositions ignifuges comprenant une résine polyester ayant une résistance au coulage de plus de 8 centinewtons et une viscosité intrinsèque de plus de 0,8 dL/g. Ces compositions sont utiles pour la préparation de matières alvéolaires en mousse et d'un composé ignifuge capable de ne pas réduire à moins de 3 Nm l'absorption du moment de torsion de la résine lors d'un test de chaleur à 280 .degré.C, sous azote et pendant 10 minutes, lorsque la composition contient 10 %, en poids, du composé ignifuge.

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