Bismaleimide compositions containing high glass transition temperature and soluble reactive oligomers and composites prepared therefrom
申请人:HERCULES INCORPORATED
公开号:EP0363524A1
公开(公告)日:1990-04-18
Described are (1) terminally unsaturated oligomers having terminal amine groups or terminal carboxylic acid derivative groups and glass transition temperatures (Tg) above about 170°, in which the unsaturated moieties have two double bonds in conjugated relationship, and which are soluble in uncured multifunctional maleimides, and (2) thermosetting resins comprising mixtures of the terminally unsaturated oligomers and the multifunctional maleimides. The cured resins have a fracture toughness, KIC of at least 1.0 MPam1/2 and glass transition temperatures of at least 200°C.
描述了(1)具有末端胺基或末端羧酸衍生物基团且玻璃化转变温度(Tg)高于约 170°的末端不饱和低聚物,其中不饱和分子具有两个共轭双键,且可溶于未固化的多功能马来酰亚胺,以及(2)由末端不饱和低聚物和多功能马来酰亚胺混合物组成的热固性树脂。固化树脂的断裂韧性、KIC 至少为 1.0 MPam1/2,玻璃化温度至少为 200°C。