Novel compounds based on dibenzoylresorcinol and related compositions and articles
申请人:GENERAL ELECTRIC COMPANY
公开号:EP0854127A1
公开(公告)日:1998-07-22
Novel compounds are disclosed, in which a dibenzoylresorcinol-type chemical structure is linked to various types of functional groups. In one embodiment, the dibenzoylresorcinol is bonded to the residue of either an alcohol or a carboxylic acid group, via a methylene carboxylate linking group. In another embodiment, the dibenzoylresorcinol is bonded directly to a substituted or unsubstituted aryl group which does not include a pendent hydroxyl group. In either instance, the groups attached to the dibenzoylresorcinol may contain a wide variety of functional sites which permit further reaction, e.g., copolymerization. The described compounds are very useful as UV light absorbers.
Improved coating compositions based on the dibenzoylresorcinol-derived compounds are also described. The compositions, which usually include a transparent, polymeric matrix material, may be applied to various substrates, e.g., thermoplastics, to afford a selection of enhanced properties, such as UV light resistance and abrasion resistance.
本发明公开了新型化合物,其中二苯甲酰基间苯二酚型化学结构与各种类型的官能团相连。在一个实施方案中,二苯甲酰基间苯二酚通过亚甲基羧酸连接基团与醇或羧酸基团的残基结合。在另一个实施方案中,二苯甲酰基间苯二酚直接键合到不包括悬垂羟基的取代或未取代芳基上。无论在哪种情况下,连接到二苯甲酰基间苯二酚上的基团都可以包含多种官能团,从而允许进一步反应,例如共聚。所述化合物作为紫外线吸收剂非常有用。
此外,还介绍了基于二苯甲酰基间苯二酚衍生化合物的改进型涂料组合物。这些组合物通常包括一种透明的聚合物基体材料,可应用于各种基材(如热塑性塑料),以提供一系列增强特性,如抗紫外线和耐磨性。