| abstract |
Two-component formulation for producing open-cell flexible foams having compressive strength of ≤1N/cm2, contained in 2-component aerosol can with crosslinker sleeve which can be opened prior to deploying formulation from aerosol can wherein the contents thereof enter aerosol can, wherein first component is present in aerosol can and second component that is reactive to first component is present separately in crosslinker sleeve and wherein aerosol can includes prepolymer composed of 25-35% by weight MDI and 40-55% by weight of polyol mixture having free isocyanate groups, and 10-21% by weight of propellant gas mixture and crosslinker sleeve includes 4-10% by weight of crosslinker mixture, wherein weight data are based on weight of formulation. Polyol mixture includes at least one trifunctional polyether and bifunctional polyester polyols, together with flame retardant, foam stabilizer, cell opener, amine catalyst, and crosslinker mixture including ethylene glycol in deficiency relative to free isocyanate groups and amine catalyst. |