C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/72 (2006.01) C08J 9/22 (2006.01)
Patent
CA 2417545
In one of its aspects, the present invention relates to a foamed isocyanate-based polymer derived from a reaction mixture comprising toluene diisocyanate, wherein the foam has a compression force deformation of at least about 50 kPa at 30% deflection when measured pursuant to ASTM 3574 and a density of less than about 45 kg/m3. In another of its aspects, the present invention relates to a process for producing a foamed isocyanate-based polymer comprising the steps of: contacting an isocyanate comprising toluene diisocyanate, an active hydrogen-containing compound, a dendritic macromolecule and a blowing agent to form a reaction mixture; and expanding the reaction mixture to produce the foamed isocyanate-based polymer; wherein at least a 15% by weight of the dendritic macromolecule may be mixed with a polyether polyol having an OH number less than about 40 mg KOH/g to form a stable liquid at 23°C
Kee Robert A.
Valentin Ferdiemar N.
Van Heumen Jeffrey D.
Xie Min
Gowling Lafleur Henderson Llp
Kee Robert A.
Valentin Ferdiemar N.
Van Heumen Jeffrey D.
Woodbridge Foam Corporation
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