FIELD: chemistry.
SUBSTANCE: invention relates to a solution of virtually non-cross linked thermoplastic polyurethaneureas for applying coatings onto substrates, for example on woven fabric or leather. Said solution contains 15-60 wt % dissolved polyurethaneurea in mixtures of organic solvents containing 15-50 wt % γ-butyrolactone and other solvents such as low molecular weight alcohols, esters and ketones.
EFFECT: obtaining solutions which are highly stable during storage, manufacturing and application of which excludes toxic solvents, and coatings from which have good adhesion, hardness and tear strength.
4 cl, 24 ex
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|---|---|---|---|
| SOLUTION OF POLYURETHANE-UREAS AND USING THEREOF FOR APPLICATION OF COATINGS ON SUBSTRATES | 2009 |
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