Patent ID: 6409959
Filing Date: 2002-06-25
Classification: B29C,B29D

Abstract:
A process for manufacturing, moulding, and curing a tire, comprising the steps of:manufacturing a green tire comprising a first elastomer material; providing an inner surface of the tire with a treatment to prevent permeation of a fluid under pressure through the treatment; closing the tire into a moulding cavity defined in a vulcanization mould, the moulding cavity including at least one wall; admitting a fluid under pressure into a space defined by the treatment in order to press an outer surface of the tire against the at least one wall of the moulding cavity; and applying heat to the tire to vulcanize the first elastomer material; wherein a shape of the at least one wall of the moulding cavity matches a shape of the outer surface of the tire after vulcanization is complete, wherein the treatment comprises at least one layer comprising a second elastomer material, and wherein vulcanization of the second elastomer material only takes place when the second elastomer material is brought into contact with a sulfur-containing vulcanizable mixture constituting an innermost layer of the tire.