초록

There is disclosed a zinc-rich coated steel article which is characterized by an outer layer of rubber containing a weight ratio of sulfur vulcanizing agent to total accelerator ranging from 0.4:1 to 0.8:1.

대표청구항 ▼

[ What is claimed is:] [1.] A zinc-rich coated steel article encapsulated by a rubber compound, wherein said rubber compound comprises(a) 100 parts by weight of a rubber selected from the group consisting of natural rubber, synthetic rubber and mixtures thereof;(b) from 45 to 70 phr of carbon black;

[ What is claimed is:] [1.] A zinc-rich coated steel article encapsulated by a rubber compound, wherein said rubber compound comprises(a) 100 parts by weight of a rubber selected from the group consisting of natural rubber, synthetic rubber and mixtures thereof;(b) from 45 to 70 phr of carbon black;(c) from 0.5 to 3 phr of a sulfur donor selected from the group consisting of elemental sulfur, polymeric polysulfide, sulfur olefin adducts and mixtures thereof,(d) from 1.25 to 3.75 phr of at least one accelerator; wherein the weight ratio of sulfur donor to total accelerator present in the wirecoat ranges from 0.4:1 to 0.8:1; and(e) from 0.2 to 5 phr of cobalt neodecanoate.