| abstract |
aqueous polyurethane-polyurea dispersions. the present invention relates to aqueous polyurethane-polyurea dispersions that stabilize a foam - produced by mechanical expansion - without the addition of other foam stabilizing components, such that aqueous foams are obtained, which are stable both during temporary storage and during processing, so that they can be applied in the form of foam also by customary application methods and substantially retain the foam structure even after drying. |