| 摘要 |
A process for the manufacture of cross-linked foamable moldings from olefin polymers, wherein the olefin polymer is mixed with (A) A SOLID ORGANIC BLOWING AGENT WHICH ELIMINATES GASES WHEN HEATED, (B) AN ORGANIC PEROXIDE, (C) CONVENTIONAL ADDITIVES AND (D) AN ACTIVATING ORGANIC COMPOUND WHICH LOWERS THE DECOMPOSITION TEMPERATURE OF THE PEROXIDE, AND THE MIXTURE IS MOLDED THERMOPLASTICALLY AND IS CROSSLINKED BELOW THE DECOMPOSITION TEMPERATURE OF THE BLOWING AGENT BUT ABOVE THE DECOMPOSITION TEMPERATURE OF THE ACTIVATED PEROXIDE. |
