Patent ID: 7019087

Claim:
A method for the production of a moldable mass, comprising: (a) compounding, at a first temperature, a blend that contains at least one polyolefin with a density of less than about 0.918 g/cm 3 , a first organic peroxide compound with a first decomposition temperature, and a first co-cross-linking agent, wherein the first co-cross-linking agent is substantially stable at temperatures less than the first decomposition temperature; (b) adding of mineral oil to the compounded blend of step (a), and heating of this blend to a second temperature; and (c) adding of at least one second organic peroxide compound with a second decomposition temperature, and a second co-cross-linking agent, which is substantially stable at temperatures less than the second decomposition temperature to the blend of step (b), and heating of the resulting blend to a temperature of above the second decomposition temperature while yielding the moldable mass, wherein the first temperature is less than the first decomposition temperature, the first decomposition temperature is less than the second temperature and the second temperature is less than the second decomposition temperature.