Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Reexamination Certificate
2006-04-25
2006-04-25
Sergent, Rabon (Department: 1711)
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
C252S182210, C252S182220, C524S591000, C524S839000, C524S840000, C528S045000, C528S071000, C528S067000, C528S076000, C544S222000, C560S024000, C560S025000, C560S026000, C560S115000, C560S157000, C560S158000, C564S032000, C564S038000, C564S044000
Reexamination Certificate
active
07033522
ABSTRACT:
A blocked polyisocyanate adduct including 5 to 95% by weight of at least one isocyanate component having at least one NCO group, the isocyanate component selected from the group consisting of aliphatic, cycloaliphatic and aromatic isocyanates, wherein the isocyanate has an average molecular weight of up to 1000 g/mol and an average NCO functionality of 2–4; 5 to 70% by weight of at least one hydrophilicizing component containing at least one group which is reactive toward the at least one NCO group; at least one blocking agent for blocking from 95 to 100% of the NCO groups which do not react with the hydrophilicizing component; and up to 15% by weight of at least one neutralizing agent.
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W. Siefken, Justus Liebigs Annalen Der Chemie, vol. 562, pp. 75-136, “Mono- Und Polyisocyanate” 1948.
Janischewski Klaus
Jonderko Klaus-Peter
Mindach Lutz
Degussa - AG
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sergent Rabon
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