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The utility model relates to a new viscosity index improver for ethylene vinyl rubber, which is made of deeply refined hydrotreating base oil, through thermal melting and catalytic degradation at high temperature, and then through homogenizing machine high pressure degradation, and through two filtration treatments.
Good thickening ability, excellent low temperature cold start performance and excellent shear stability and excellent high temperature and high shear performance.
No. 4, Hangzhou West Road, Shenbei New District,
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