Process for the preparation of a cross-linked rubber article
AssigneeAkzo Nobel N.V.
InventorsJohannes Gerhardus Bernardus Bouwmeester, Robert Alex De Gunst, Haimo Tonnaer
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Abstract
Process for preparing a cross-linked rubber article comprising the steps of: a) applying a sulfur-containing composition to the surface of a pre-shaped peroxide-containing cross-linkable rubber article to provide a sulfur-coated article, and b) cross-linking the rubber by heating the sulfur-coated article, optionally in the presence of air, at a temperature in the range of 80 to 300° C. to obtain the cross-linked rubber article.
Claims12
A process for preparing a cross-linked rubber article comprising the steps of:
- a) applying a sulfur-containing composition to the surface of a pre-shaped peroxide-containing cross-linkable rubber article to provide a sulfur-coated article, and
- b) cross-linking the rubber by heating the sulfur-coated article, optionally in the presence of air, at a temperature in the range of 80 to 300° C. to obtain the cross-linked rubber article.
A continuous process for the preparation of a cross-linked rubber article, comprising the steps of:
- (i) shaping a peroxide-containing cross-linkable rubber to form a pre-shaped peroxide-containing cross-linkable rubber article,
- (ii) applying a sulfur-containing composition to the surface of the pre-shaped peroxide-containing cross-linkable rubber article to provide a sulfur-coated article, and
- (iii) cross-linking the rubber by heating the sulfur-coated article at a temperature in the range of 80 to 300° C., optionally in the presence of air, to obtain the cross-linked rubber article,
- all in a continuous fashion.
A sulphur-coated article obtained by applying a sulfur-containing composition on the surface of a pre-shaped peroxide-containing cross-linkable rubber article, wherein the sulfur-containing composition is a sulfur-containing aqueous suspension.
Dependencies are inferred from the claim text.