Preparing thermo-plastic or elastomeric materials for cross-link

Details Preparing thermo-plastic or elastomeric materials for cross-link Preparing thermo-plastic or elastomeric materials for cross-link

1975-09-08

1977-09-13

Hamrock, William F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260827, 260878R, 526 29, 526 48, 526 56, 526 57, C08F 812, C08F 842, C08F 800, C08F 806

Patent

active

040481298

ABSTRACT:
Siloxane cross-linking of polyethylene is carried out under in situ development of water by chemical reaction between an organic acid and a non-hygroscopic metal oxide producing a neutral salt and water. Specifically, an ester peroxide is used as additive to be mixed with silane and polyethylene. The ester peroxide decomposes during grafting in free acid, alcohol and graft initiators for obtaining the grafting of silane on polyethylene, and the acid reacts with zinc oxide or tin oxide, also used as additive, to obtain salt and water. Alternatively, stearic acid or adipic acid and zinc oxide or tin oxide are added to a polyethylene silane mixture to develop water and salt of the acid.

REFERENCES:
patent: 3503943 (1970-03-01), Kresge et al.
patent: 3644315 (1972-02-01), Gardner et al.
patent: 3646155 (1972-02-01), Scott
patent: 3830872 (1974-08-01), Schrage

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