Stabilized aqueous polyurethane-polyurea dispersions

Details Stabilized aqueous polyurethane-polyurea dispersions Stabilized aqueous polyurethane-polyurea dispersions

2006-08-15

2006-08-15

Niland, Patrick D. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C428S375000, C428S425600, C524S099000, C524S102000, C524S191000, C524S589000, C524S590000, C524S839000, C524S840000

Reexamination Certificate

active

07091280

ABSTRACT:
The present invention relates to a binder composition containingA) at least one aqueous polyurethane-polyurea dispersion andB) at least one stabilizer containinga) 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)in-line-formulae description="In-line Formulae" end="lead"?—CO—NH—NH—  (II)in-line-formulae description="In-line Formulae" end="tail"? andc) 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 comprisingA) at least one aqueous polyurethane dispersion, containing structural units of at least one stabilizing agent or mixture of stabilizing agents B) based ona) at least one amine with the general formula (I), which has no hydrazide groups,b) at least one compound with the general formula (II),in-line-formulae description="In-line Formulae" end="lead"?—CO—NH—NH—  (II)in-line-formulae description="In-line Formulae" end="tail"? andc) 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.

REFERENCES:
patent: 5216078 (1993-06-01), Cook et al.
patent: 5922806 (1999-07-01), Blum et al.
patent: 5961878 (1999-10-01), Konig et al.
patent: 6242530 (2001-06-01), König et al.
patent: 2253119 (1999-05-01), None

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