Carbodiimides with carboxyl or carboxylate groups

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Reexamination Certificate

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C528S322000, C528S310000, C528S084000

Reexamination Certificate

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07049001

ABSTRACT:
Compounds with carbodiimide units and carboxyl or carboxylate groups (compounds V), derived froma) aliphatic or araliphatic C4to C20polyisocyanates (component a)b) hydroxy carboxylic acids or hydroxy carboxylic salts (component b) andc) if desired, further compounds, carrying groups able to react with isocyanate groups in an addition reaction (component c)d) if desired, other isocyanates (component d),the carbodiimide units being derived essentially exclusively from the isocyanate groups of component a).

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