초록 ▼

Sealing members, such as rolling bearing seal and oil seal, which are not only satisfactory in the fundamental properties required of them, such as sealing performance, heat resistance, mechanical strength and oil resistance, but also excellent in creep and PAG resistances. The member has an elastic

Sealing members, such as rolling bearing seal and oil seal, which are not only satisfactory in the fundamental properties required of them, such as sealing performance, heat resistance, mechanical strength and oil resistance, but also excellent in creep and PAG resistances. The member has an elastic part and is made by molding a modified nitrile rubber comprising a butadiene-acrylonitrile-acrylate copolymer and containing an organic peroxide as a vulcanizer, a metal oxide as a vulcanization aid, and a basic silicate as a reinforcing filler.

대표청구항 ▼

[ What is claimed is:] [1.] A sealing member characterized by having an elastic part formed by molding a modified nitrile rubber of the butadiene-acrylonitrile-acrylate type which contains an organic peroxide as a vulcanization agent, a metal oxide as a vulcanization accelerator and a basic silicic

[ What is claimed is:] [1.] A sealing member characterized by having an elastic part formed by molding a modified nitrile rubber of the butadiene-acrylonitrile-acrylate type which contains an organic peroxide as a vulcanization agent, a metal oxide as a vulcanization accelerator and a basic silicic acid as a reinforcing filler, wherein said basic silicic acid is contained in an amount of 10 to 60 parts by weight per 100 parts by weight of the modified nitrile rubber.