申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0416885A1
公开(公告)日:1991-03-13
A vulcanizable epoxy group-containing elastomer composition comprises by weight, 100 parts of (A) an epoxy group-containing elastomer, (B) 0.1 - 10 parts of an organic compound containing at least two
bonds, wherein X and Y, which may be the same or different, each represents an oxygen atom or a sulfur atom, per molecule or an organic compound containing at least two carboxyl groups per molecule, (C) 0.1 - 10 parts of a phosphine compound represented by formula:
wherein R1 and R2, which may be the same or different, each represents an alkyl group having from 1 to 4 carbon atoms; and R represents a hydrogen atom or an alkoxy group having from 1 to 4 carbon atoms, and optionally 0.1 - 10 parts of a compound containing a = N· CO-N = or = N-CS-N = N bond.
The composition has excellent compression set, particularly in a high temperature atmosphere, as well as excellent mechanical characteristics, and can be kneaded and vulcanised to make e.g., sealing materials.
一种可硫化的含环氧基弹性体组合物,按重量计,包括 100 份(A)含环氧基弹性体,(B)0.1-10 份含有至少两个键的有机化合物,其中 X 和 Y(可以相同或不同)分别代表每个分子中的氧原子或硫原子,或每个分子中含有至少两个羧基的有机化合物
其中 X 和 Y(可以相同或不同)分别代表每个分子中的一个氧原子或一个硫原子, 或每个分子中含有至少两个羧基的有机化合物, (C) 0.1 - 10 份由式表示的膦化合物:
其中 R1 和 R2(可以相同或不同)各代表一个具有 1 至 4 个碳原子的烷基;R 代表一个氢原子或一个具有 1 至 4 个碳原子的烷氧基,以及 0.1 - 10 份含有=N- CO-N= 或=N-CS-N=N 键的化合物。
该组合物具有极佳的压缩永久变形,尤其是在高温环境下,同时还具有极佳的机械特性,可经捏合和硫化制成密封材料等。