abstract |
Acrylic rubber, contain (a) methyl methacrylate units, (b) ethyl acrylate unit, (c) n-butyl acrylate unit, (d) acrylic acid 2- methoxy acrylate unit and (e) crosslinking points monomeric unit, (a) methyl methacrylate units are 10~20 weight %, (b) ethyl acrylate unit is 15 weight % or less, (c) n-butyl acrylate unit is 60~80 weight %, (d) acrylic acid 2- methoxy acrylate unit is 10~30 weight %, and (e) crosslinking points monomeric unit is 0.5~5 weight %. |