Quality polymer foam from fluorinated alkene blowing agents

Details Quality polymer foam from fluorinated alkene blowing agents Quality polymer foam from fluorinated alkene blowing agents

C - Chemistry, Metallurgy

08

J

C08J 9/14 (2006.01) B29C 44/34 (2006.01) C08J 9/12 (2006.01) C08J 9/16 (2006.01)

Patent

CA 2682076

Alkenyl aromatic polymer foam comprising a polymer matrix containing one or more polymer and defining a plurality of cells having an average cell size wherein: (a) the alkenyl aromatic polymer foam has : - (i) an average cell size that is in a range of 0.02 and 5 millimeters; - (ii) a density of 64 kilograms per cubic meter or less; - (iii) an open cell content less than 30 percent; and - (iv) a cell size variation of 30% or less; and wherein the foam further comprises one or more fluorinated alkene blowing agent at a concentration of 0.03 moles or more and 0.3 moles or less per 100 grams of polymer foam.

L'invention concerne une mousse polymère de qualité qui contient un ou plusieurs agents d'expansion issus d'un groupe spécifique d'alcènes fluorés qui ont simultanément un ODP zéro, un GWP inférieur à 50, une solubilité dans les polymères aromatiques alcényles qui leur permet de comprendre plus de 50 % en poids d'une composition d'agent d'expansion qui produit une mousse aromatique alcényle de qualité.

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