Barrier material for gel sealant-cable jacket interface
AssigneeRaychem Corporation
InventorsAnne E. Covington, Thomas A. Hunter, Keith Dawes
Life of this patent
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Abstract
This invention provides a foam barrier which prevents substantial migration of plasticizer from a plasticized polymeric article, such as a PVC cable jacket, into a gel sealing material in contact with the article and prevents substantial migration of oil from the gel material into the article while not significantly interfering with the sealing contact between the gel material and the surface of the article.
Claims9
An assembly comprising a plasticized polymeric article, a gel material adjacent a surface of said polymeric article and a foam barrier disposed as a layer between said article and said gel material for substantially preventing migration of plasticizer from said article into said gel material.
A combination of shaped gel article for sealing against a surface of a plasticized polymeric article and having disposed on a surface of the shaped gel article intended for sealing said surface of the polymeric article a foam barrier disposed as a layer on the surface of the shaped gel article for substantially preventing migration of plasticizer from said article into said gel material
A method of substantially preventing migration of plasticizer from a plasticized polymeric article into a gel material adjacent said article which comprises interposing between the article and the gel material a foam barrier which substantially prevents such migration of plasticizer into said gel material.
Dependencies are inferred from the claim text.