CARBODIIMIDES WITH CARBOXYL OR CARBOXYLATE GROUPS
New compounds with carbodiimide units and carboxyl or carboxylate groups are obtained from reaction of : (a) (ar)aliphatic 4-20C polyisocyanates with (b) hydroxycarboxylic acids or their salts and optionally also (c) further compounds giving an addition reaction with NCO groups and/or (d) other isoc...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | New compounds with carbodiimide units and carboxyl or carboxylate groups are obtained from reaction of : (a) (ar)aliphatic 4-20C polyisocyanates with (b) hydroxycarboxylic acids or their salts and optionally also (c) further compounds giving an addition reaction with NCO groups and/or (d) other isocyanates. The carbodiimide units are derived exclusively from the NCO groups of reactant (a). An independent claim is also included for preparation of the compounds. |
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