| 摘要 |
<p>The present invention concerns water-soluble or water-dispersible polyurethanes prepared from a water-dispersible polyurethane prepolymer that contains terminal isocyanate groups and a primary or secondary amine that contains at least one ionogen or ionic group. The invention also concerns the salts of said polyurethanes. The polyurethanes claimed in the invention find use in Cosmetics and Pharmacy and particularly as hair fixer with improved rinseability.</p> |
