| 摘要 |
1,246,662. Thiophosphoryl polysulphides as accelerators for EPDM rubber. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 Jan., 1969 [14 Feb., 1968], No. 7320/68. Heading C3P A combination of a conventional accelerator and a bis(dialkylthiophosphoryl) di-, tri- or tetra-sulphide is used in the sulphur vulcanization of EPDM rubbers. |
