Method for cross-linking and stabilizing polymers which can be cross-linked radically

Claim 1

In a method for cross-linking radically cross-linkable saturated hydrocarbon polymer systems and for stabilizing such polymer systems against oxidative and/or thermal decomposition, the improvement comprising carrying out the cross-linking of the polymer systems in the presence of oxidation inhibitors selected from the group consisting of compounds represented by the following formulae: ##STR25## wherein G is selected from n-alkylene or iso-alkylene having 1 to 5 C-atoms, O and S; at least one R 1 at each Si-atom is alkenyl with 2 to 3 C-atoms and, for any remaining positions, R 1 is selected from cycloalkyl, aryloxy, aralkyloxy having 7 to 11 C-atoms, cycloalkyloxy, alkyl with 1 to 3 C-atoms, phenyl, alkyloxy with 1 to 3 C-atoms, methoxyethoxy and ethoxyethoxy; and R 4 is selected from hydrogen, n- or iso-alkyl with 1 to 5 C-atoms or the two R 4 ortho substituents together can be benzo; ##STR26## wherein u is a number from 1 to 20 and R 1 , R 4 and G are as defined above; ##STR27## wherein v=0 to 2 and w=1 to 6, R 1 is as defined above, R 12 is n- or iso-alkyl with 1 to 5 C-atoms and L is a w-times substituted n- or isoalkyl radical with 1 to 6 C-atoms; ##STR28## wherein R 1 and R 4 are as defined above; ##STR29## wherein R 1 and R 4 are as defined above; ##STR30## wherein R 1 and R 4 are as defined above; R 14 is selected from hydrogen, n- or isoalkyl with 1 to 12 C-atoms and n- or isoalkyloxy with 1 to 12 C-atoms; (g) compounds formed by oligimerizing the compounds of (f) via the C═C double bond at atoms C 3 and C 4 and ##STR31## wherein R 1 , R 4 , G and u are as defined above.