Flame bonded hose
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United States of America Patent
Stats
-
Jan 5, 1982
Grant Date -
N/A
app pub date -
Jan 25, 1980
filing date -
Jan 25, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermoplastic hose construction and method of making same wherein a thermal bond is achieved directly between the reinforcement and cover without the necessity for intermediate bonding materials. An open flame played upon a reinforced core tube, wherein the reinforcement consists of yarn windings at least one of which is partly formed of continuous filaments of olefinic material compatible with an olefinic based cover, softens the compatible strands just prior to extrusion of the cover thereover to provide a distributed bond of discontinuous contact areas between the reinforcement and cover. In a preferred embodiment of the invention polypropylene is used as one yarn in the reinforcement for bonding with a thermoplastic rubber cover.
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Cited Art Landscape
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