| 摘要 |
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 % -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 |
