Moisture-hardenable sealing and coating compounds
AssigneeSchering Corporation
InventorsBernd Brinkmann, Eugen Griebsch
Life of this patent
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Abstract
A sealing and coating compound hardening in the presence of moisture and comprising a mixture of A. an addition product formed between an excess of a di- or poly-isocyanate having aliphatic or cycloaliphatic isocyanate groups and a polyester polyol or a linear or branched polyalkylene oxide having terminal hydroxy groups, and B. a di- or poly-functional enamine which is prepared by reacting an aliphatic aldehyde or cyclic ketone and a polyaminoamide which is the condensation product formed between an excess of a secondary diamine and at least one acid selected from the group consisting of di- and poly-carboxylic acids having 6 to 72 carbon atoms.
Claims10
A sealing and coating compound hardening in the presence of moisture and comprising a mixture of substantially equimolar amounts of
- a. an addition product formed between an excess of a di- or poly-isocyanate having aliphatic or cycloaliphatic isocyanate groups and a polyester polyol or a linear or branched polyalkylene oxide having terminal hydroxy groups, and
- b. a di- or poly-functional enamine which is prepared by reacting an aliphatic aldehyde or cyclic ketone and a polyaminoamide which is the condensation product formed between an excess of a di-secondary or primary-secondary diamine and at least one acid selected from the group consisting of di- and poly-carboxylic acids having 6 to 72 carbon atoms.
Dependencies are inferred from the claim text.