申请人:SABIC Global Technologies B.V.
公开号:EP3560979A1
公开(公告)日:2019-10-30
A curable epoxy composition includes an epoxy resin composition; a hardener composition comprising an aromatic dianhydride curing agent of the formula
wherein T is -O-, -S-, -SO2-, -SO-, -CyH2y- wherein y is an integer from 1 to 5 or a halogenated derivative thereof, or -O-Z-O- wherein Z is an aromatic C6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C1-8 alkyl groups, 1 to 8 halogen atoms, or a combination thereof, and the aromatic dianhydride has a melting point of 220°C or less; and at least one additional anhydride curing agent different from the aromatic dianhydride curing agent; and 0.1 to 5 wt% of a heterocyclic accelerator, wherein the heterocyclic accelerator comprises a substituted or unsubstituted C3-6 heterocycle comprising 1 to 4 ring heteroatoms, wherein each heteroatom is nitrogen, oxygen, phosphorus, silicon, or sulfur, preferably nitrogen, oxygen, or sulfur, more preferably nitrogen.
一种可固化的环氧树脂组合物包括:环氧树脂组合物;固化剂组合物,其中包括一种芳香族二酐固化剂,其式为
其中 T 是 -O-、-S-、-SO2-、-SO-、-CyH2y- 其中 y 是 1 至 5 的整数或其卤代衍生物,或 -O-Z-O- 其中 Z 是可选被 1 至 6 个 C1-8 烷基、1 至 8 个卤原子或其组合取代的芳香族 C6-24 单环或多环分子,且该芳香族二酐的熔点为 220°C 或更低;至少一种不同于芳香族二酐固化剂的附加酸酐固化剂;以及 0.1至5重量%的杂环促进剂,其中杂环促进剂包括由1至4个环杂原子组成的取代或未取代的C3-6杂环,其中每个杂原子是氮、氧、磷、硅或硫,优选氮、氧或硫,更优选氮。