Stabilisierte wässrige Polyurethan-Polyharnstoff Dispersionen

• Main Authors: NAUJOKS, KARIN, RISCHE, THORSTEN, MEIXNER, JUERGEN, FELLER, THOMAS, KOENIG, EBERHARD
• Format: Patent
• Language: German
• Published: 31.07.2003
• Edition: 7
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; INKS; LAUNDERING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

Die vorliegende Erfindung betrifft gegenüber Thermovergilbung stabilisierte, wässrige Polyurethan-Polyharnstoff Dispersionen sowie deren Herstellung und Verwendung. The present invention relates to a binder composition containing A) at least one aqueous polyurethane-polyurea dispersion and B) at least one stabilizer containing a) at least one amine having a structural unit corresponding to formula (I) which has no hydrazide groups, b) at least one compound having a structural unit corresponding to formula (II) -CO-NH-NH- (II) and c) optionally a stabilizing compound other than a) and b). The polyurethane dispersions are manufactured in the presence of components a) and b). It is possible for components a) and b), depending on the grade used, to be incorporated into the polymer framework as structural units. For this reason binder compositions comprising A) at least one aqueous polyurethane dispersion, containing structural units of at least one stabilizing agent or mixture of stabilizing agents B) based on a) at least one amine with the general formula (I), which has no hydrazide groups, b) at least one compound with the general formula (II), -CO-NH-NH- (II) and c) optionally a stabilizing compound other than a) and b). are also the subject matter of the invention in question. The present invention also relates to a process for the preparation of these binder compositions. Further, the present invention relates to coating, adhesive and sizing compositions containing the binder compositions according to the invention. Finally, the present invention also relates to glass fibers sized with sizing compositions containing the binder compositions according to the invention.