THE POLYACRYLATE RUBBER COMPOSITION OF OIL SEAL FOR AUTO TRANSMISSION

摘要

The present invention relates to a rubber composition for an oil seal to be used in the automatic transmission , and more particularly, a rubber a matrix Mooney viscosity (ML1 + 4, 100 ) by including a 40-50 poly acrylate rubber , and the particle size of 40 ~ 48 mm as a filler of carbon black FEF , and the particle size of 7 ~ 16 nm dry silica heat resistance , pressure resistance and oil resistance are enhanced oil may be obtained as well , because the seal which eliminates the manufacturing step of the oil seal when the secondary vulcanization is vulcanization time is remarkably reduced , and higher productivity is improved to reduce the production cost , in the automatic transmission relates to a rubber composition for an oil seal to be used .