The present disclosure relates to a composition comprising: at least one dendritic polymer prepared from hyper-branched polymer with hydroxyl groups, having a plurality of peripheral functional groups, wherein the peripheral functional groups comprising at least one cyclic ether group that is covalently bound to said hyperbranched polymer by urethane linkages; and a melamine-based crosslinker. Such compositions have improved flexibility. The present disclosure further relates to the use of such compositions to form coatings after cure, or as an additive component to binder resins.
                            本公开涉及一种组合物,该组合物包括:至少一种树枝状聚合物,该聚合物由带有羟基的超支化聚合物制备而成,具有多个外围官能团,其中外围官能团包括至少一个
环醚基团,该
环醚基团通过
氨基甲酸酯连接与所述超支化聚合物共价结合;以及一种
三聚氰胺基
交联剂。这种组合物具有更好的柔韧性。本公开还涉及使用此类组合物在固化后形成涂层,或作为粘合剂
树脂的添加成分。