| 摘要 |
<p>Anionically hydrophilized polyurethane-polyurea-polymer (G1) comprising at least one isocyanate prepolymer including at least one diisocyanate (20-60 wt.%), at least one macrodiol (20-80 wt.%), at least one 2,2-bis-(hydroxymethyl)-alkane-monocarboxylic acid (2-12 wt.%), at least one short-chain diol (0-15 wt.%), at least one monofunctional alcohol (0-10 wt.%), at least one N-(2-aminoalkyl)-2-aminoalkylsulfonic acid (0.5-10 wt.%), at least one diamine (0-15 wt.%), at least one monofunctional amine (0-10 wt.%), water (0-3 wt.%), and at least one neutralizing agent (0-10 wt.%), is new. Anionically hydrophilized polyurethane-polyurea-polymer (G1) comprising at least one isocyanate prepolymer including at least one diisocyanate (20-60 wt.%), at least one macrodiol (20-80 wt.%) having a number average molecular weight of 500-10000, at least one 2,2-bis-(hydroxymethyl)-alkane-monocarboxylic acid (2-12 wt.%), at least one short-chain diol (0-15 wt.%) having a number average molecular weight of 62-400, at least one monofunctional alcohol (0-10 wt.%) having a number average molecular weight of 32-350, at least one N-(2-aminoalkyl)-2-aminoalkylsulfonic acid (0.5-10 wt.%), at least one diamine (0-15 wt.%) having a molecular weight of 60-300, at least one monofunctional amine (0-10 wt.%), water (0-3 wt.%), and at least one neutralizing agent (0-10 wt.%), is new. In prepolymer stage a), the isocyanate content is adjusted to 65-85% of the calculated isocyanate content. The sum of 2,2-bis-(hydroxymethyl)-alkane-monocarboxylic acid and N-(2-aminoalkyl)-2-aminoalkylsulfonic acid is 3-15 wt.%. The ratio of 2,2-bis-(hydroxymethyl)-alkane-monocarboxylic acid to N-(2-aminoalkyl)-2-aminoalkylsulfonic acid is 6:1 to 1:1. An independent claim is included for preparation of the polymer (G1).</p> |
