PROCESS FOR PRODUCING POLYURETHANE FOAMS FOR WOUND MANAGEMENT

摘要

Wound dressing foam (I) comprises a silane-terminated polyurethane prepolymer. An independent claim is included for a process for producing a wound dressing foam, comprising providing a composition comprising silane-terminated polyurethane prepolymers obtainable by reacting (i) polyurethane prepolymers having free isocyanate (NCO) groups to an average NCO functionality of at least 1.5 with (ii) di- and/or trialkoxysilanes having amino, hydroxyl and/or thiol groups bonded to the silicon atom via an alkylene radical, or by reacting (iii) polyhydroxy compounds having an average OH functionality of at least 1.5 with (iv) di- and/or trialkoxysilanes having NCO and/or isothiocyanate groups bonded to the silicon atom via an alkylene radical comprising more than one alkoxysilane group; foam additives; optionally catalysts; optionally blowing agents; and optionally further, auxiliary and adjunct materials, where the composition is foamed, applied to a substrate before, during or after foaming and cured in the presence of water.