| abstract |
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- 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. |