Patent ID: 9579412
Date: 2017-02-28
CPC Classifications: A61L,A61P,B65D,C08G

Claim:
1. An isocyanate-free multicomponent system for producing foams for medical products, having at least two separate components, the first component comprising at least one alkoxysilane-terminated prepolymer, and the second component comprising an aqueous component, with the aqueous component having a pH of 4.0 to 9.5 at 20° C., wherein the aqueous component comprises at least one acid, one base, or one buffer system, wherein the aqueous component comprises a polyurethane dispersion comprising 5 to 65 wt % of polyurethane based on the total weight of the polyurethane dispersion, wherein the alkoxysilane-terminated prepolymer comprises an alkoxysilane-terminated polyurethane prepolymer prepared from [(cyclohexylamino)methyl]triethoxysilane and an isocyanate-terminated prepolymer prepared from a polyol component and an aliphatic isocyanate component.