AIR BARRIER FILM TUBING TO REPLACE INNER-LINER (BUTYL)
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United States of America Patent
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Issued Date -
Aug 8, 2024
app pub date -
Jan 26, 2024
filing date -
Feb 6, 2023
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Abstract
In one aspect, the invention is directed to a method of providing an air barrier layer to a tire comprising at least the following steps: providing a tire comprising a tire cavity and an inner surface facing the tire cavity, providing a tubular film with at least one open end, and molding at least a portion of the tubular film to form an air barrier layer adapted to the inner surface of the tire. In another aspect, a cured tire is provided which comprises a tire cavity and an inner surface facing the tire cavity, and a tubular film of molten polymer is extruded. Said film is inserted into the tire cavity of the cured tire and expanded in the tire cavity to form an air barrier layer adapted to an inner surface of the tire.
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