AMINO-FUNCTIONAL POLYESTER RESINS

摘要

AMINO-FUNCTIONAL POLYESTER RESINS The present invention relates to a process for the production of polyester resins containing 0 to 10% by weight of hydroxyl groups and 0.01 to 9%, preferably 0.05 to 2%, by weight of nitrogen (expressed as N = 14) in the form of primary and/or secondary amino groups, by reacting in an addition reaction at 0 to 120.degree.C i) polyester resins having a molecular weight (Mn) of 286 to 10,000 and containing an average per molecule of at least 2 structural units corresponding to the formula: <IMG> and optionally alcoholic hydroxyl groups with ii) ammonia or primary monoamines corresponding to the formula: R-NH2 wherein R represents an aliphatic, cycloaliphatic or araliphatic radical optionally containing ether oxygen atoms and/or hydroxyl groups. The present invention also relates to the amino-functional and optionally hydroxy-functional polyester resins obtained by this process and to their use as a binder component in two-component polyurethane coating compositions, particularly for coating plastic moldings.