摘要:
The present invention relates to a process for the preparation of colorless, storage-stable polyisocyanates containing biuret groups from di- or polyisocyanates using water and/or steam as a biuretizing agent, and an apparatus for this purpose and the use thereof.
摘要:
A process for preparing high-functionality highly branched polyureas which comprises reacting one or more carbonates with one or more amines having at least two primary and/or secondary amino groups, at least one amine having at least three primary and/or secondary amino groups.
摘要:
Multilayer materials for producing packaging, comprising at least 2 films and a layer printed with a printing ink, the printing ink comprising a hyperbranched polyurea containing functional groups; a printing ink comprising a polyurea containing functional groups; and the use of said printing ink for producing multilayer materials.
摘要:
In a method for printing substrates with a printing ink and/or a printing varnish at least comprising solvents and binders, at least one of the binders comprises a polyetheramine polyol.
摘要:
The use of high-functionality highly branched polyetheramine polyols to coat substrates such as metal surfaces or components made of plastic permits improved adhesion of further coatings.
摘要:
A process for preparing high-functionality highly branched polyureas which comprises reacting one or more carbonates with one or more amines having at least two primary and/or secondary amino groups, at least one amine having at least three primary and/or secondary amino groups.
摘要:
The present invention relates to coating compositions which comprise 2,4′-diisocyanatodiphenylmethane, to processes for preparing them, and to their use.
摘要:
The present invention relates to a process for preparing highly functional hyperbranched polyesters which comprises reacting a reaction solution comprising solvent and (a) one or more dicarboxylic acids or one or more derivatives thereof with one or more at least trifunctional alcohols (b) or one or more tricarboxylic acids or higher polycarboxylic acids or one or more derivatives thereof with one or more diols (c) or one or more tricarboxylic acids or higher polycarboxylic acids or one or more derivatives thereof with one or more at least trifunctional alcohols (d) or one or more di- or polyhydroxycarboxylic acids (e) or one or more hydroxydi- or hydroxypolycarboxylic acids or mixtures of at least two of the above reaction solutions in the presence of an enzyme at temperatures above 60° C. and pressures above 500 mbar
摘要:
The present invention provides a highly functional hyperbranched polyester which may be obtained by a process which comprises reacting a reaction solution containing solvent and reactants in the presence of an enzyme at a temperature above 60° C. and a pressure above 500 mbar.