摘要:
The invention relates to a process for producing polyurethane foams, by frothing and drying mixtures of specific polyurethane dispersions and crosslinkers.
摘要:
The invention relates to a process for producing polyurethane foams for wound management wherein a composition containing a polyurethane dispersion and inorganic, cationic coagulants is frothed and dried.
摘要:
Layered composite useful as wound dressing, comprising a base layer, an absorbent layer atop the base layer, and also a covering layer, wherein the covering layer is bonded to both the base layer and the absorbent layer and wherein the base layer comprises a polyurethane foam obtained by a composition comprising an aqueous, anionically hydrophilicized polyurethane dispersion that has been frothed and dried.
摘要:
The invention relates to compositions for producing hydrophilicized polyurethane foams, in particular for wound management, wherein the composition, containing a polyurethane dispersion and specific additives, is frothed and dried.
摘要:
The invention relates to a process for producing shaped articles, where a foam layer which includes a polyurethane foam obtained by foaming a composition including an aqueous, anionically hydrophilicized polyurethane dispersion (I), and drying, is thermoformed where the thermoforming takes place at a temperature of from ≧100° C. to ≦200° C. and under a pressure of from ≧50 bar to ≦150 bar, and where additionally during the thermoforming the foam is compressed to ≧25% to ≦100% of its original volume. The foam can be stabilized using ethylene oxide/propylene oxide block copolymers. The invention further relates to shape articles obtainable in this way, and to the use thereof, preferably as wound dressings.